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Preface
This preface provides general information about the documentation set for the7302 Intelligent Services Access Manager (7302 ISAM).
Scope
This documentation set provides information about safety, features andfunctionality, ordering, hardware installation and maintenance, CLI and TL1commands, and software upgrade and migration procedures.
Audience
This documentation set is intended for planners, administrators, operators, andmaintenance personnel involved in installing, upgrading, or maintaining the7302 ISAM.
Prerequisite knowledge
The reader must be familiar with general telecommunications principles.
Safety information
For ETSI safety information, see the 7302 ISAM Safety Manual.
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The following are examples of how special information is presented in thisdocument.
Document conventions
The following conventions are used in this documentation set.
Measurement conventions
Measurements in this document are expressed in imperial units. If metricmeasurements are included, they appear in brackets following the imperial
measurement. Time and metric measurements follow the Système internationald’unités (SI) standard for abbreviation of time and metric units (for example, theabbreviation for minute is min and for second is s).
Acronyms
See the glossary included with the System Description for the expansion of acronymsused in this documentation set.
Release notes
Be sure to refer to the release notes (such as the Customer Release Notes or
Emergency Fix Release Note) issued for software loads of the 7302 ISAM beforeyou install or use the 7302 ISAM. The release notes provide important informationabout the software load.
Documents
Table 1 lists the documents that make up the 7302 ISAM Release 4.2.03documentation set.
Danger — Danger indicates that the described activity or situationmay result in serious personal injury or death; for example, highvoltage or electric shock hazards.
Warning — Warning indicates that the described activity or situationmay, or will, cause equipment damage or serious performanceproblems.
Caution — Caution indicates that the described activity or situationmay, or will, cause service interruption.
Note — A note provides information that is, or may be, of special
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1.1 Introduction
The 7302 ISAM is a frame based Multi Service Access Platform, offeringhigh-density copper and fiber connections for multimedia, high-speed internetaccess, voice and business services.
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Figure 1-4 Ring Topology
Network Side
At the network side, the 7302 ISAM terminates FE, GE, 2.5 GE or 10GE links. Thefollowing configurations are possible:
• Connected to one or more Ethernet Switches
The Ethernet links can be connected to one or more Ethernet Switches. TheseEthernet Switches forward the frames over the Ethernet based aggregation accessnetwork until they reach the IP Edge Router or BRAS of the correspondingNetwork Service Provider (NSP). At the IP Edge Router or BRAS, the framesenter the IP backbone of the NSP.
• More than one FE/GE link (link aggregation)
In case of more than one FE or GE, Ethernet link aggregation is used.
• Directly connected to an IP Edge Router
The 7302 ISAM can be connected directly to the IP Edge Router or BRAS. TheEthernet aggregation network is reduced to one or more parallel Ethernet links.
• Can also be connected to a Multi-protocol Label Switching (MPLS) network(when the ISAM is equipped with a 100Gbps or a 320Gbps NT board).
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xHub is a common denominator for SHub and IHub:
• SHub: forwarder on the 24 Gbps NT board
• IHub: forwarder on the 100 Gbps NT board and on the 320 Gbps NT board
24 Gbps NT Board
The 24 Gbps NT board consists of an SHub subsystem and a System Controlsubsystem.
• The SHub subsystem has basic L2 functionality (VLAN based) and limited L3functionality and consists of a Gigabit-Ethernet switch device and switch controlSW. The SHub control SW is integrated on the System Control OBC.
• The System Control subsystem implements the management plane of the system(both the NT board and the LT boards) and part of the control plane (subscribermanagement in particular). The System Control consists of SW running on apowerful general purpose processor. It shares this processor with the SHubcontrol SW (on the same processor core).
100 Gbps NT Board and 320 Gbps NT Board
The 100 Gbps NT board and the 320 Gbps NT board consist of an IHub subsystemand a System Control subsystem.
• The IHub subsystem has enhanced L2 functionality (VPLS based) and L3functionality (VPRN based) and consists of a 10-Gigabit-Ethernet switch/routerdevice, and IHub control software (SW).
• The System Control subsystem implements the management plane of the system(both the NT board and the LT boards) and part of the control plane (subscribermanagement in particular). The System Control consists of SW running on apowerful general purpose processor. It shares this processor with the IHub control
SW (on a separate processor core).
Line Termination (LT) Boards
Line Termination (LT) boards are built from an InterWorking Function (IWF), aTransport subsystem and an LT-Control subsystem.
• The transport subsystem terminates the physical layer of the subscriber interfaces.It varies with the type of access technology used (ADSL, VDSL, SHDSL,Ethernet,...).
• The IWF processes the packets in the fast path. It is capable of handling framesat L2 (basically bridging) and L3 (basically IP forwarding), includingsophisticated filtering and traffic management, all at the line rate of the transport
medium.• The LT-Control subsystem takes care of the slow path control plane and internal
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GPON LT Boards
The GPON functionality of the ISAM extends the system boundaries via up to 128Optical Network Terminations (ONTs) over a fiber plant that can reach 10s ofkilometers out from the GPON LT boards located in an ISAM shelf.
These GPON LT boards provide the physical interfaces from the ISAM shelftowards the Customer Premises Equipment, that is, the ONTs.
Physical Decomposition
The following figures show the general functional architecture of the ISAM, fromthe viewpoint of its forwarding capabilities:
• Figure 1-8 is applicable for ISAMs equipped with a 24Gbps NT board.
• Figure 1-9 is applicable for ISAMs equipped with a 100Gbps or a 320Gbps NTboard.
Figure 1-8 High-level ISAM Architecture for 24Gbps
Note — GPON functionality is only applicable for ISAMs equippedwith a 100Gbps NT or a 320Gbps NT board.
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Figure 1-9 High-level ISAM Architecture for 100Gbps or 320Gbps
An ISAM shelf consists out of the following board types:
• NT board
• LT boards
• NTIO board
NT Board
Provisions are made to equip two NT boards in the shelf. These NT boards can actas an active / stand-by pair for all functions.
The following NT boards are supported in FD equipment:
• NANT-A (24 Gbps NT board):This NT board with integrated SHub subsystem provides two GE links (1 opticallink and 1 combo link (optical or electrical)) on the front panel.
Provisions are made to equip two NT boards in the shelf. This NT board can actas an active / stand-by pair for all functions.
• NANT-D (100 Gbps NT board):
This NT board with integrated IHub subsystem provides the following links onthe front panel:
• Three GE SFP ports:
These ports can work both in 1 GE mode and in 2.5 GE mode.
• One 10GE SFPplus port:
This port can work both in 1 GE mode (with standard SFP optics) and in 10 GEmode (with SFPplus optics).
• NANT-E (320 Gbps NT board):
This NT board with integrated IHub subsystem provides the following links onthe front panel:
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These ports can work both in 1 GE mode (with standard SFP optics), in 2.5GE modeand in 10 GE mode (with SFPplus optics).
LT Boards
The LT boards consists of a IWF, the transport termination and the LT control.The LT boards, also known as Line Interface Modules (LIMs), use a differentinterworking function between the user side and the Ethernet network side,depending on the board type. Table 1-1 shows the supported LT boards with theirphysical interface types, density (that is, number of lines per board) and Interworkingfunction (IWF) capability.
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Notes(1) General: When a board supports ADSL2, then READSL2 is also supported(2) L2: InterWorking Function (IWF) capability on Layer 2 only. For an overview of the IWF capabilities,
refer to section 1.5(3) L2+: IWF capability on Layer 2+. For an overview of the IWF capabilities, refer to section 1.5(4) L3: IWF function capability on Layer 2 and Layer 3. For an overview of the IWF capabilities, refer
to section 1.5(5)
Not all L3 features are supported in these ports, see Table 1-16
NTIO Board
The NTIO board plays the role of an applique to either the single NT board, or to bothNT boards, depending on the NT redundancy configuration. It allows to decouple NTequipment protection from up-link protection in case of a redundant NT pair. In casethe active NT fails, traffic on the NTIO external links will be switched automaticallyto and from the stand-by NT.
Table 1-2 shows the supported NT I/O boards in FD equipment.
Table 1-2 NT I/O Boards
NVLT-D VDSL2
ADSL/2+
ISDN 48 1 GE L3 (4)
NVLT-G VDSL2ADSL/2/2+
POTS 48 2.5 GE L3
(4)
NVLT-H VDSL2
ADSL/2/2+
ISDN 48 2.5 GE L3 (4)
NVLT-M VDSL2
ADSL/2/2+
POTS 48 2.5 GE L3 (4)
NVLT-N VDSL2
ADSL/2/2+
POTS 48 2.5 GE L3 (4)
NVLT-P VDSL2
ADSL/2/2+
POTS 48 2.5 GE L3 (4)
NVLT-Q VDSL2
ADSL/2/2+
ISDN 48 2.5 GE L3 (4)
NVLS-A VDSL2
ADSL/2/2+
POTS 48 2.5 GE L3 (4)
NVPS-A - - - 1 GE L3 (4)
Board Interfaces Description / Remark
NCNC-B Six additional external GEoptical interfaces
• For FD equipment
• NT, NT I/O pair provides eight optical GEinterfaces available for network / subtending/ user links
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Port mapping
The tables below list the port mapping for 7302 ISAM FD, that is, the mappingbetween the logical port numbers as used in the ISAM and the physical port numbersas visible on the equipment itself (frontplate numbering).
• Table 1-3 lists the different mapped items.
• Table 1-4 lists the port mapping for the NANT-A board in a 7302 ISAM FD inextended LT slot subrack mode.
• Table 1-5 lists the port mapping for the NANT-A board in a 7302 ISAM FD indual NT + NTIO subrack mode.
• Table 1-6 lists the port mapping for the NANT-D board in a 7302 ISAM FD inextended LT slot subrack mode.
• Table 1-7 lists the port mapping for the NANT-D board in a 7302 ISAM FD indual NT + NTIO subrack mode for NCNC-B and NCNC-D.
• Table 1-8 lists the port mapping for the NANT-D board in a 7302 ISAM FD indual NT + NTIO subrack mode for NCNC-F.
• Table 1-9 lists the port mapping for the NANT-E board in a 7302 ISAM FD inextended LT slot subrack mode.
• Table 1-10 lists the port mapping for the NANT-E board in a 7302 ISAM FD indual NT + NTIO subrack mode for NCNC-B and NCNC-D.
• Table 1-11 lists the port mapping for the NANT-E board in a 7302 ISAM FD indual NT + NTIO subrack mode for NCNC-F.
NCNC-D Six additional externalEthernet interfaces:
• two GE Optical and
• four GE/FE Optical
(selectable) or• four FE 10/100/1000
Electrical
• For FD equipment
• NT, NT I/O pair provides eight optical GEinterfaces available for network / subtending/ user links
NCNC-F Two additional externalEthernet interfaces:
• two 10GE Optical
• For FD equipment
• NT, NT I/O pair provides two optical GEinterfaces and two optical 10GE available fornetwork / subtending / user links
Five additional externalEthernet interfaces:
• one 10GE Optical
• one GE/2.5GE
• three 10/100/GE/2.5GE
• For FD equipment
• NT, NT I/O pair provides three opticalGE/2.5GE interfaces, three optical10/100/GE/2.5GE interfaces and one optical10GE available for network / subtending /user links
NCNC-G Two additional external
Ethernet interfaces:• two GPON ports with
Fiber protection function(i.e. only 1 port can beactive at the same time)
• one electrical GE10/100/1000
• For FD equipment
• NT, NT I/O pair provides four optical GEinterfaces available for network / subtending/ user links
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Note(1) The LT slot number is index-based
SHub
The L2 SHub provides a bridging function. It has 24 FE/GE ports. These 24 FE/GEports are used as follows:
A number of ports are used to make a connection at 1 Gbps to an LT local in thesubrack (one link per LT board): 16 for non-redundant NT configurations and 18 forredundant NT configurations with NTIO board.
The FE/GE ports not used for connecting LT boards (local or remote), are availableas network interfaces, as interfaces to subtended IP-DSLAM systems, or forconnecting directly to users. These links serve network links, subtending links, oruser links respectively.
Use of these ports is possible either through:
• Link interfaces which are physically located on an NTIO board:
these are connected via bi-directional point-to-point high-speed tracks on theback-panel to both NT boards. These can also be used as electrical FE, electricalGE or optical 1 / 10 GE interfaces, for uplink, subtending or user links. The NTIOboard contains an NT equipment protection switch per external link interface. Solink protection and NT equipment protection can be performed independentlyfrom each other for links terminated on the NTIO board.
• Link interfaces which are physically located on the NT board itself, as electricalFE, electrical GE, or optical GE interfaces, for uplinks, subtending links or userlinks.
In case of a redundant NT pair, and if no passive optical splitter is applied, theseports cannot support independent link and equipment protection, that is, if theactive NT fails, traffic on all of the links directly connected to the active NT hasto be switched to corresponding links on the stand-by NT, becoming active.
If a passive optical splitter is applied (which allows to connect a single opticalfiber from / to peer equipment with a face plate port on both NT boards) thenindependent link protection and equipment protection is possible. The NTprotection switch function is then performed on the NT boards itself, in the form
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of logic which physically prevents the Inactive or Stand-by NT from actuallytransmitting on the passive optical splitter, such that corruption of thetransmission by the active NT on the same link is not possible.
IHubThe IHub provides L2 bridging (based on VPLS) and IP routing (based on VPRN).It has at least 28 ports with a various specialization:
A number of ports are used to make a connection at 1 Gbps or at 2.5 Gbps or at 10Gbps (320Gbps NT only) to an LT local in the shelf (one IHub link per LT): 16 or18 in case of 7302 ISAM. The actual connection speed depends on the LTcapabilities; see Table 1-1.
The FE/GE ports, which are not used for connecting LT boards (local or remote), andthe 10GE ports, are available as network interfaces, as interfaces to subtendedIP-DSLAM systems, or for connecting directly to users. These links serve networklinks, subtending links, or user links respectively.
Use of these ports is possible either through:
• Link interfaces which are physically located on an NTIO board, connected viabi-directional point-to-point high-speed tracks on the back-panel to both NTboards.
These interfaces can also be used as electrical FE, electrical GE or optical GEinterfaces, for uplink, subtending or user links. The NTIO board contains an NTequipment protection switch per external link interface.
So link protection and NT equipment protection can be performed independentlyfrom each other for links terminated on the NTIO.
• Link interfaces that are physically located on the NT board itself, as electrical FEinterfaces, electrical GE interfaces, optical GE interfaces, optical 2.5 GE
interfaces and optionally optical 10 GE interfaces, for uplink, subtending or userlinks.
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1.3 Network Management
Figure 1-10 shows how the 7302 ISAM can be managed in a network.
Figure 1-10 7302 ISAM Network Management
The remote Craft Terminal (CT) uses TL1 commands or Command Line Interface(CLI) commands. TL1 is used for pre-provisioning of the NT board. CLI is used tomanage both the xHub subsystem and the IACM.
Figure 1-11 shows the management topology for the 7302 ISAM.
Figure 1-11 7302 ISAM Management Topology
The NT Controller and the xHub subsystem each contain a separate SNMP agent.These can be managed via an Element Management Station (EMS), such as theAlcatel-Lucent 5520 AMS.
It is also possible to use local TL1 or CLI craft terminal on the NT board to managethe LTs.
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An integrated CLI approach is implemented on the NT board using an CLI agent.This agent implements CLI commands for the NT Controller / LIMs and the xHubsubsystem. However, there is no semantic integration.
Table 1-12 shows an overview of the involved managers.
Table 1-12 Manager Overview
1.4 Equipment Management
The NE equipment practice type does not have to be explicitly planned by theoperator, but is auto-planned by the NT at startup, depending on the detected type.At the same time, the NT will autoplan the maximum number of racks supported by
this equipment practice. The following ISAM type is defined:
• LNEU: Large New Equipment Practise EU market (6 racks, 4 subracks per rack)
Subracks are automatically planned upon detection. The operator can control theadministrative state of a subrack (lock/unlock).
The NE manages different types of boards. A complete overview of all supportedboard types in each type of subrack is given in the chapter “Subracks”. Boardplanning is supported for all types of boards, including the appliques. For LSMs, theoperator can control the administrative state (lock/unlock).
Central Office Equipment management
Central Office equipment only supports configurations consisting of a singlerack/subrack.
ONT Management
For more information on the ONT management, see the 7302 ISAM | 7330 ISAMFTTN System Description for FD 100Gbps and 320Gbps NT document.
Type Description
EMS Element Management System (EMS) based on SNMP. The Alcatel-Lucent WorkStation(5520 AMS) is commonly used.
CT Craft Terminal using TL1 commands or Command Line Interface (CLI) commands.
Note 1 — External OAM VLAN:
The SHub subsystem supports in-band management. This happens
through a dedicated VLAN, which must be configured (if differentthan 4093) on both the SHub subsystem as on the NT.
Note 2 — VLAN 4094 is reserved for internal communication andcannot be used in any Ethernet network in which the ISAM isdeployed.
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Note(1) A number of MAC addresses are always used by the system for internal purposes.(2) The same resource is shared for L2 filters and L3 filters. So, the maximum cannot be obtained for
both at the same time.
SyncE Support
Table 1-15 indicates the port applicability of the Synchronous Ethernet NTRfunctionality for clock extraction (in) and generation (out).
Table 1-15 Faceplate port applicability for Synchronous Ethernet
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Note(1) Support policing on bridge port on L2
MTU Size
ISAM supports an Ethernet frame size of 1526 bytes. For ATM-based DSLinterfaces with “LLC-SNAP bridged without FCS” or “VC-MUX bridged withoutFCS” encapsulation this number does not include the FCS (since there is not any onthe DSL line). For ATM-based DSL interfaces with “LLC-SNAP bridged with FCS”this number includes the FCS.
Table 1-17 indicates the boards for which this standard frame size has increased.
CC Mode: IPoA to IPoE CC - Y Y - - -
VLAN stacking (S-VLAN CC and S-VLAN / C-VLAN CC) Y Y Y Y Y Y
QoS-aware CC Y Y Y - - -
L2 Forwarding user access protocols
ARP: enabling/disabling broadcast Y Y Y Y Y -
802.1X authentication Y Y Y Y Y -
DHCP option 82 insertion Y Y Y Y Y -
PPPoE relay tag Y Y Y Y Y -
PPPoA-PPPoE relay - Y Y - - -
Multicast services Y Y Y Y Y -
L3 Forwarding
IPoE - - Y Y Y -
IPoA - - Y Y Y -
VLAN termination (at network side), forwarding at Layer 3 - Y Y Y Y Y
L3 Forwarding user access protocols
802.1X authentication - Y Y Y Y -
ARP proxy user side for IPoE - - Y Y Y -
DHCP relay - Y Y Y Y -
QoS
CAC profile Y Y Y Y Y Y
Association of QOS profiles to ports Y(1
)
Y Y Y Y Y
Association of QOS profiles to port-VLAN associations - Y Y Y Y -
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Notes(1) Seven for data plane, one for CPE management(2) Refer to the 7302 ISAM FD Hardware Installation Manual for restrictions(3) A few MAC addresses are used by the system for internal purposes.(4) For IP anti-spoofing, not for forwarding
ISAM Voice Dimensioning
The tables below show the dimensioning capacities for ISAM Voice.
Table 1-20 ISAM Voice Dimensioning
Table 1-21 NVPS Dimensioning
Maximum number of IPv6 subnets or addresses perVLAN port
- - - - 4 0
Maximum number of IPv6 host addresses per board - - - - 288 0
Maximum number of VRFs per board - - 128 NA - -
Multicast Dimensioning
Maximum number of simultaneous multicastchannels per board
172 512 1024 1024 1024 1024
Maximum number of multicast groups per user 4 100 100 100 100 1024
Maximum number of multicast VLANs 128 128 128 128 - -
802.1x
Maximum number of 802.1x sessions per PON - - - 288 - -
Maximum number of 802.1x sessions per UNI - - - - 1 0
Maximum number of 802.1x sessions per board - - - 2304 36 0
Feature L2 L2+ L3 L3
GPON
NELT-B
UNI NNI
(2 of 2)
Dimensioning for... See Table...Applicable for
H.248 SIP
NVPS 1-21 Y N
NPOT 1-22 Y Y
NBAT 1-23 Y N
Description Value
Number of registered POTS subscribers 5k(1)
Number of registered ISDN subscribers 2496
Maximum number of connected ISAM Voice nodes 32(2)
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Notes(1) The figure of 5k corresponds to one of the following:
— 104 POTS voice LT boards, each of these boards connecting 48 subscribers (NPOT-A)
— 70 POTS voice LT boards each of these boards connecting 72 subscribers (NPOT-B)(2) The 32 ISAM Voice nodes may be connected, but the total number of LT boards spread over these
32 ISAM Voice nodes must not exceed 104.(3) Depends on the IP address/VLAN deployment model, see “IP Address Usage Optimization” in the
System Description document.
Table 1-22 NPOT Dimensioning
Notes(1) Shared by all ISAM Voice line boards in an ISAM node; the IP address is owned by the SHub/IHub(2) NPOT-A and NPOT-B cannot be used in the same shelf.
Maximum number of associated NBATs 104
Number of controlling NVPS per ISAM Voice shelf up to 8 pairs
Number of IP addresses per NVPS 1 or 2(3)
Note — The configuration of more than 5 NVPS pairs in one shelf is
not recommended due to following reasons
• ISAM voice does not support different OSWP versions runningsimultaneously in the different NPVS pairs installed on the sameshelf (migration cluster)
• The migration of OSWP will have to be performed for the wholemigration cluster so impacting time needed to execute thismigration which might exceed one migration window
• The migration time of this migration cluster depends on manyfactors (such as network topology, AWS/MGC performance,network condition, customer specific maintenance requirementand so on). The migration strategy should be planned and executedin a controlled way.
Description NPOT-A(2) NPOT-B(2)
Number of POTS lines 48 72
Maximum number of simultaneousvoice calls per NPOT
48 for G.711 (40 for G.711 if“IP-side inband fax/modemtone detection” is enabled)
24 for G.729 and G.723.1
72 for G.711
36 for LBRC
Number of T.38 connections 24 36
Number of IP addresses per NPOT 1(1) 1(1)
Number of simultaneous ringers 8 12
Number of enhanced feeding lines Up to 5 lines can beconfigured to work withenhanced feeding (40 mA).
Up to 8 lines per NPOT canbe configured to work withenhanced feeding (40 mA).
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Table 1-23 NBAT Dimensioning
Note(1) Shared by all ISAM Voice line boards in an ISAM node; the IP address is owned by the SHub/IHub.
P-OLT Service and System Capacity
Service and system capacity
Table 1-24 provides specific dimensioning information of the GPON LT boards.
Table 1-24 GPON-specific Dimensioning Information
P-OLT performance and distance
The P-OLT provides performance and distance capacity of 2.488 Gb/s downstreamand 1.244 Gb/s upstream, within a 30 km span, for all NGLT boards. The optical linkbudget is defined by both loss and bandwidth characteristics. The loss characteristicis determined by the difference between the optical transmitter and optical receiverfor each direction, and is typically 28 dB. The bandwidth characteristic is determinedby the maximum link distance parameter of each OLT and ONT transmitterspecification, and is limited by the smaller of the upstream and downstream values.
P-OLT connection capacities
The P-OLT can accommodate a maximum of 16 NGLT boards. Each NGLT boardprovides eight ports.
Description Value
Number of ISDN lines 24
Maximum number of simultaneous D-channels per NBAT 24
Maximum number of simultaneous B-channels per NBAT 48
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1.7 MTA and 1:N LT Redundancy Support
This section describes which hardware modules are required to support the variousMTA functions and 1:N LT Redundancy.
The 7302 ISAM system provides an integrated Metallic Test Access Unit (MTAU)function. Both limited test-access (no test and split access) and full test-access (notest, loopback, monitor and split access) are supported in the current release of the7302 ISAM.
The following modules are required to implement the MTA function:
• Test I/O applique (TAUS) in the splitter subrack: to provide the interface to thetest head and manage the Relay Controllers on the LT appliques. The followingTest I/O board types support this functionality: NTAU-A, TAUS-A
• In an FD subrack in combo configuration (LT + Splitter) MTA functionality canbe offered by the NCNC-D NT I/O board.
• In an FD subrack in combo configuration (LT + Splitter) MTA functionality can
be offered by the NCNC-F NT I/O board.• LT appliques in the splitter subrack, that contain the relays to set up the proper
data paths (see Table 1-26).
Splitters supporting only outward test-access are equipped with only 1 relay per line,while splitters supporting both inward and outward test-access have 2 relays per line.
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2.1 Introduction
This chapter describes the different ISAM subrack types supported for the EuropeanTelecommunication Standard Institute (ETSI) market. For each subrack, thefollowing characteristics are described:
• Subrack dimensions
• Physical areas
• Slot positions
• Supported plug-in units (per release).
2.2 General
The modular organization of the ISAM system allows a wide range of physical sizeand traffic capacity options.The basic building blocks of the ISAM system are the subracks or shelves(*).(*)
: Both names are used for the same item.The ISAM R 4.x is a one-subrack system. Daisy-chaining multiple subracks viaextender boards is not supported.Multiple collocated subracks can be cascaded via the standard Fast Ethernet(FE)/Gigabit Ethernet (GE) subtending links. In such a configuration, each subrackoperates and is managed as a separate system.
Subrack Types
Table 2-1 lists the supported subrack types in ETSI configurations. The subrackscomply with the standards of ETSI 300 386.
Table 2-1 ETSI Subracks Supported in ISAM Configurations
Notes(1) The 7330 FD subrack is mentioned here for completeness sake. For more information about this
subrack, refer to the 7330 ISAM FTTN Product Information.(2) The SB-REM is mentioned here for completeness sake. For more information about the SB-REM,
refer to the 7356 ISAM FTTB User, Safety and Installation Manual.
Subrack Type Mnemonic Subrack Dimensions
H x W x D
Fits Rack with
Width x depth
7302 FD NFXS-A 600 x 500 x 280 mm 600 x 300 mm
NFXS-A MII 600 x 500 x 280 mm 600 x 300 mm
FD MTA splitter NFSS-B 444 x 485.9 x 277.5 mm 600 x 300 mm
FD non-MTA splitter NFSS-A 444 x 485.9 x 277.5 mm 600 x 300 mm
XD MTA splitter ASPS-A 785 x 465 x 290 mm 600 x 300 mm
XD non-MTA splitter ASPS-C 600 x 465 x 280 mm 600 x 300 mm
7330 FD(1) NFXS-B 355 x 445 x 240 mm • 600 x 300 mm
• 19” rack
SB-REM(2) SB-REM 110 x 463.9 x 241 mm • 600 x 300 mm
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2.3 7302 FD Subrack
The 7302 Flexible Density (FD) subrack is optimized for an IP-DSLAMarchitecture.
The 7302 FD subrack can contain:
1 LT boards as well as splitter boards (7302 FD Combo)
2 LT boards only (7302 FD LT)
3 combined LT/splitter boards
Mnemonic
The mnemonic is NFXS-A.
Subrack Configurations
The following subrack configurations are possible:
• 7302 FD Combo subrack:
In Combo mode, the 7302 FD subrack can be equipped with both LT boards andsplitter boards. LT boards can be inserted into any slot but are accompanied by asplitter board on the right.
• When NT redundancy is required, an NT I/O board is inserted in slot 17 and thesecond NT board (NTB) is inserted in slot 18. A total of 8 LT boards and 8 splitterboards can be equipped; see Figure 2-1.
• If NT redundancy is not required, slots 17 and 18 can be used for an LT board (LT9)and the corresponding splitter board (SP9). A total of 9 LT boards and 9 splitterboards can be equipped; see Figure 2-2.
• 7302 FD LT subrack:
In LT mode, the 7302 FD subrack is equipped only with LT boards. Thecorresponding splitter boards are placed in a splitter subrack above the 7302 FDLT subrack in the rack.
• When NT redundancy is required, an NT I/O board is inserted in slot 17 and thesecond NT board (NTB) is inserted in slot 18. A total of 16 LT boards can beequipped; see Figure 2-3.
• If NT redundancy is not required, slots 17 and 18 can be used for an LT board.A total of 18 LT boards can be equipped; see Figure 2-4.
• 7302 FD subrack with combined LT/splitter boards:
The 7302 FD subrack is equipped with combined LT/splitter boards; seeFigure 2-5.
Note — Slot 17 or slot 18 may not be equipped with an NVPS board
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Location
The 7302 FD subrack can be installed in a Central Office (CO) or a ControlledEnvironment Vault (CEV) and can be deployed in remote cabinets requiringextended temperature range operation.
Areas and Slot Positions
Figure 2-8 shows the general layout and the slot numbering of the 7302 FD subrack.
Figure 2-8 General Layout and Slot Numbering in the 7302 FD Subrack
Figure 2-9 shows the general layout and the slot numbering of the 7302 FD MIIsubrack.
Figure 2-9 General Layout and Slot Numbering in the 7302 FD MII Subrack
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The 7302 FD subrack has the following areas:
• The Board area houses the plug-in units (NT board(s), NT I/O board, LT boards,and (when the 7302 FD subrack is used in Combo mode) splitter boards)
• The CBs, lamps and switches area houses the Circuit Breakers (CB), the alarm
lamps for power and other interface connections.• The Fan area provides housing for a separate fan unit.
• The Connector provides housing for filters, connectors, lamps and CircuitBreakers (CB) for power and other interface connections.
Board Types
The 7302 FD subrack can accommodate the following units:
• NT I/O boards: If not used, this slot can be occupied with LT17.
In the backpanel, there is a provision to equip a maximum of 8 uplinks on theNT I/O. These 8 uplinks can be either 8 x 1 Gbps Ethernet or 2 x 10 GbpsEthernet. On the NT I/O, these uplinks are multiplexed between the 2 NTs on NTactive/standby state.
• NT boards: If the redundant NT is not used, this slot can be occupied with LT18,with an additional EMC plate (5mm).
• LT boards:
16 LT boards (with NT redundancy and with NTIO board) or 18 LT boards (withno NT redundancy and without NTIO board) can be accommodated in splitterlessmode. In Combo mode, the LT boards must be equipped in the odd positions withtheir corresponding splitter in the even position.
• Splitter boards:
• In Combo mode, the splitters for the xDSL LIMs can be mounted in the 7302 FDsubrack on the right side of the LT board.
• In LT mode, the splitters must be mounted in a splitter subrack. One splitter must beforeseen per installed LT board.
• Combined LT/splitter boards:
16 combined LT/splitter boards (with NT redundancy and with NTIO board) or18 combined LT/splitter boards (no NT redundancy and without NTIO board).
NT Redundancy
For NANT-A (24 Gbps NT board)
When a NT 1:1 (active/standby) redundant configuration is to be deployed, an NT
I/O board needs to be inserted in the subrack. The NT I/O board performs NT boardprotection switching for uplinks from the 2 NT boards: only the uplinks from theactive NT are connected to the external up-link interfaces.
For NANT-D (100 Gbps NT board)
The protection scheme is 1+1 (active/active) in the data plane, and 1:1(active/standby) in the control and management plane.
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NT I/O boards are supported and are useful in duplex systems, e.g. during EPSfailures.
For NANT-E (320 Gbps NT board)
The protection scheme is 1+1 (active/active) in the data plane, and 1:1(active/standby) in the control and management plane.
NT I/O boards are supported and are useful in duplex systems, e.g. during EPSfailures.
1+1 NVPS Redundancy
The NVPS board supports 1+1 redundancy. In a redundant configuration, bothboards must be installed in adjacent slots n and n+1 (n is an odd integer).
1:N LIM Redundancy
The 1:N redundancy of the LIMs is not supported in the 7302 FD subrack itself sinceno TEST/SPARE bus is available. When this functionality is required, the necessaryprovisions need to be available in the connected splitter device.
Metallic Test Access
Metallic Test access (MTA) is supported when a Test I/O applique is provided in thesubrack to provide the interface to the test head and manage the Relay Controllers onthe LT appliques. The following board types support this functionality:
• NTAU-A
• NCNC-D
• NCNC-F
Metallic Ended Line Testing (MELT)
Metallic Line Testing (MELT) is a measurement technology, integrated on DSLlinecards, that enables the physical characterization of a copper line. This type ofintegrated loop testing is performed narrow-band, and is an alternative for classictesthead-based Narrow-Band Line Testing (NBLT) solutions . The following boardtypes support this functionality:
• NALT-M
• NVLT-M
• NVLT-N
•NSLT-B
Overview of Supported Units
Table 2-3 lists the supported plug-in units in the 7302 FD subrack for R4.2.03. Referto Figure 2-8 for the layout and the slot positions.
For detailed information about units, refer to the UDS. Appendix A gives the usedmnemonics.
Product Information Edition 03 Released 3HH-08995-AAAA-TCZZA
Notes(1) The NCNC boards are shared between NT A and NT B.(2) The NCNC-F board can only be used in combination with the NANT-D board.(3) The NCTA-B must work together with two SHDSL LT boards(4) CAUTION: the NVPS-A cannot be inserted in the NTIO/LT17 slot position or in the NTB/LT18 slot
position
(5) The NCTA-A must work together with two POTS LT boards(6) The NGLT-A board can only be used in an ISAM equipped with FD 100Gbps NT or 320Gbps NT boards(7) The NGLT-A board are not supported in MII equipment(8) Can only be used with FD 24Gbps NT boards
Dummy Front Panels
NVLT-Q VSUB-A
CTAB-C
In ASPS-C subrack; 2 boards perequipped LT board
48 VDSL/2 - ADSL/2/2+over ISDN interfaces,low power
NVSU-A
NVSU-B
NWCA-A AA
• In FD Combo subrack: Tothe right of thecorresponding LT
• In FD splitter: in thecorresponding AP slot
VSUM-A
VSUM-B
VCTM-A
In external MDF frame; 12boards per equipped LT board
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For the NFXS-A Subrack
When MDF cabling is already foreseen for not-installed units, the MDF connectorsmust be fixed on dummy front panels.
Figure 2-10 shows the universal dummy front panel for the FD-LT subrack and the
FD splitter subrack. Two variants exist:
• 3FE 61074 BA: FD universal dummy front panel without EMC gasket for 48-paircable and 72-pair cable deployment
• 3FE 61074 BB: FD universal dummy front panel with EMC gasket for 48-paircable and 72-pair cable deployment
Figure 2-10 Universal Dummy Front Panel for 7302 FD Subrack and FD Splitter Subrack
Optical Cabling for NFXS-A Subrack
In addition to MDF cabling, optical cabling is likewise possible.
• When optical cabling is already foreseen for not-installed NGLT-x boards, theoptical cables must be fixed on dummy front panels (code 3FE 65005 AA).Figure 2-11 shows the NGLT front panel.
Product Information Edition 03 Released 3HH-08995-AAAA-TCZZA
For the NFXS-A MII Subrack
Refer to the 7302 ISAM FD MII Hardware Installation manual.
Powering
Power cables are directly connected to the power filters in the connector area. Thesefilters provide EMC shielding.
Fan Unit
One fan unit provides forced air cooling in the subrack.
The fan unit is a field replaceable unit in the subrack fan area, it plugs directly intothe backplane. There are two variants, one with dust filter and one without dust filter.
Every FD-LT subrack must be equipped with a fan unit with dustfilter (seesection “Rack Configurations”).
2.4 FD MTA Splitter Subrack
The FD MTA splitter subrack can be used together with the 7302 FD subrack (in LTmode). The main characteristics of the FD splitter subrack are:
• The subrack can house up to 18 splitter boards, one per equipped LT in the 7302FD subrack.
• The subrack can be mounted in an ETSI rack frame.
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Figure 2-12 View of FD MTA Splitter Subrack
Table 2-4 gives the overall dimensions of the subrack.
Table 2-4 FD MTA Splitter Subrack Density and Dimensions
Subrack Configurations
The FD MTA splitter subrack can be used in different configurations as shown inFigure 2-13:
• Passive splitter boards:
up to 18 passive splitter boards can be equipped.
• Passive splitter boards with MTA:
up to 16 passive splitter boards can be equipped. The NTAU board must beinstalled to provide the MTA functionality and the NPIO board must be installedto provide the power for the NTAU board.
Subrack Type Mnemonic Density/ DSL Lines Height Width Depth
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The FD MTA splitter subrack has one area:
• The Splitter (SP) area can house 405 mm (H) x 225 mm (D) plug-in units.
Board Types
The FD MTA splitter subrack can accommodate up to 18 splitter boards, one perequipped LT in the 7302 FD subrack (Figure 2-14).
Redundancy
No redundancy support.
Metallic Test Access
Metallic Test access (MTA) is supported when a Test I/O applique is provided in thesubrack to provide the interface to the test head and manage the Relay Controllers onthe LT appliques. The following board types support this functionality:
• NTAU-A
Overview Supported Units
Table 2-5 lists the supported plug-in units in the FD MTA splitter subrack forR4.2.03. Refer to Figure 2-14 for the slot positions.
For detailed information about units, refer to the UDS. Appendix A gives the usedmnemonics.
Table 2-5 Supported Units in FD MTA Splitter Subrack - R4.2.03
Slot Board Type Description
Splitter slot
(01-18)
NCTA-A 96-line cut-through applique for ISAM Voice
Note: the NCTA-A must work together with two 48-lineADSL/2/2+ over POTS boards
NPSP-A
NPSP-B
48 line passive POTS splitter. ADSL2+ compatible.
NPSU-A
NPSU-B
48 line passive POTS/ISDN (2B1Q) splitter. ADSL2+ compatible.
NVSP-B
NVSP-C
48 line passive ETSI option A POTS splitter for VDSL.
NVSU-A AA 48 line universal POTS/ISDN (2B1Q) splitter for VDSL
NVSU-B AA 48 line universal POTS/ISDN (4B3T) splitter for VDSL
3HH-08995-AAAA-TCZZA Edition 03 Released Product Information
2.5 FD Non-MTA Splitter Subrack
The FD non-MTA splitter subrack can be used together with the 7302 FD subrack(in LT mode). The main characteristics of the FD non-MTA splitter subrack are:
• The subrack can house up to 18 splitter boards, one per equipped LT in the 7302FD subrack.
• The subrack can be mounted in an ETSI rack frame.
Mnemonic
The mnemonic is NFSS-A.
Dimensions
Figure 2-15 shows a front view.
Figure 2-15 View of FD non-MTA Splitter Subrack
Table 2-6 gives the overall dimensions of the subrack.
Table 2-6 FD non-MTA Splitter Subrack Density and Dimensions
Subrack Type Mnemonic Density/ DSL Lines Height Width Depth
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2.7 XD Non-MTA Splitter Subrack
The XD non-MTA splitter subrack can be used together with the 7302 FD subrack(in LT mode). The main characteristics of the XD non-MTA splitter subrack are:
• The subrack has no backplane (no MTA support, no LT redundancy support).• The subrack can house up to 16 splitter boards, one per equipped LT in the FD-LT
subrack. Each board is able to handle 48 or 24 lines.
• The subrack can be mounted in the ETSI rack frame.
Mnemonic
The mnemonic is ASPS-C.
Dimensions
Figure 2-20 shows a front view.
Figure 2-20 View of XD non-MTA Splitter Subrack
Table 2-10 gives the overall dimensions of the subrack.
Table 2-10 XD non-MTA Splitter Subrack Density and Dimensions
Areas and Slot Positions
Figure 2-21 shows the slot positions and numbering of the XD non-MTA splittersubrack.
Subrack Type Mnemonic Density/ DSL Lines Height Width Depth
Product Information Edition 03 Released 3HH-08995-AAAA-TCZZA
Splitter Plug-in Units for XD Subracks
Table 2-14 lists the size, weight and pitch of the different supported splitter plug-inunits for the XD MTA splitter subrack and the XD non-MTA splitter subrack.
Table 2-14 Overview of Splitter Plug-in Units for XD Splitter Subracks
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Transport Bracket
The transport bracket is mounted on the universal rack to protect the door fromdamage during transport.
Figure 3-2 Transport Bracket
On site the bracket must be removed.
Cabling Space
As shown in Figure 3-1, the universal cabinet provides the space required for MDFcabling. Position and dimensions of side holes are adapted for routing cables of allsubracks in any configuration.
If required, the bottom plate can be removed as shown in Figure 3-3, to free bottomholes that allow cable routing under raised floor.
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3.3 Side Plates
Table 3-2 specifies the items which are required to equip a universal rack with sideplates (left or right).
Table 3-2 Side Plate Fixing Items
The same kit is used for mounting a side plate on the left or on the right. Figure 3-4 shows the right side plate.
Figure 3-4 Mounting Side Plate on FD Racks
When mounting or dismounting the side plate, always remove the corner upright(item 4 in Figure 3-4) first. Each side plate is mounted with 5 screws and washers onthe front and 5 screws and washers on the side.
Refer to the 7302 ISAM FD Hardware Installation Manual for the installationprocedure.
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3.5 Key Locks
The door latch locks can be replaced on site by key locks. A key lock kit can beordered separately (code 3FE 25800 AA). This kit contains two key locks, two keysand instructions to replace the standard latch locks by key locks.
Figure 3-6 Key Lock Kit
Refer to the 7302 ISAM FD Hardware Installation Manual for installationprocedure.
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Figure 4-1 Rack Configurations with FD LT subracks only
Table 4-2 and Table 4-3 give an overview of all the possible rack configurations withFD LT subracks and FD splitter subracks. These configurations are shown in
Figure 4-2.
Table 4-2 Rack Configurations with FD LT subracks and FD splitter subracks
Note — For rack configuration 3FE 27794 AA:
this configuration can only be used with a limited numbercombinations of LT boards, see section “Three FD LT Subracks inOne Rack”.
Product Information Edition 03 Released 3HH-08995-AAAA-TCZZA
Notes(1) Cabinet is 1.8 m high(2) Normal noise fan unit(3) Low acoustic noise fan unit
Three FD LT Subracks in One Rack
When FD LT subracks are deployed in this configuration, only a limited number of
combinations of NT boards and LT boards can be used.For more information on the applicable configurations, see the 7302 ISAM FD Hardware Installation manual.
Weight Information
It is important to know if the floor can bear the weight of a specific rackconfiguration. The weight of the different rack configurations is listed in Table 4-6.
Product Information Edition 03 Released 3HH-08995-AAAA-TCZZA
5.1 Introduction
This section describes the optical fiber management capacity for the 7302 ISAM andlists the Alcatel-Lucent-approved Small Form Pluggable (SFP) modules that aresupported for each board type.
5.2 Optical Fiber Management Capacity
Due to some fibre handling and routing issues, some limitation apply on the numberof fibres that can be supported by a given subrack type. Two types of fiber areconsidered:
• Standard fibre: Ø 3 mm
• Thin fibre: Ø 1.6 mm
For NT and NT I/O Boards
For fibers directly connected to the NTs (where each NT supports three Small FormPluggable (SFP) fiber interfaces), the following applies:
On the NT slots, a maximum of 16 thin fibers or 8 per NT can be wired. So norestrictions to support the maximum of 2 NT x 3SFPs/NT x 2 fibers per SFP = 12thin fibers
• SFPs with standard fibers (standard fibre cross-section = 3 mm):
The limit of 4 standard fibers that can be wired for the sum of the 2 NT slots givesa restriction: that is, maximum 2 SFPs with standard fiber for the sum of 2 NTs.
For Optical LT BoardsTable 5-1 shows the fiber management capacity per LT slot for the different opticalfiber types.
Table 5-1 Fiber Management Capacity per LT Slot
Up to 18 LT boards are supported in an FD subrack, on the condition that there areno rack and cabling restrictions at the customer side. The following tables show thefiber management capacity per subrack for the different optical fiber types if theAlcatel-Lucent fiber management kit 3FE 61087 AA is being used.
• Table 5-2 for NELT-x boards
• Table 5-3 for NGLT-x boards
Fiber Cable Diameter Maximum Number of Cables per LT Slot
Product manuals and documentation updates are available atalcatel-lucent.com. If you are a new user and require access to thisservice, please contact your Alcatel-Lucent sales representative.