Flexi EDGE BTS Configurations

Flexi EDGE BTS Configurations

2 © Nokia Siemens Networks Module 4 - Configurations / MNa / 10 September, 2007

Nokia Flexi EDGE BTS: from small to large configurations

Flexible capacity increase from small to very large configurations

• 1 to 24 TRX in 1-6 sectors under 1 BCF

• up to 216 TRX per site

High site capacities possible even without a cabinet

All dual band configurations supported

• ANSI and ETSI frequencies

• GSM 800/1800, GSM 800/1900, GSM 900/1800

Min configuration 1-2 TRX , 2 modules

Max configuration / BCF 8+8+8 TRX, 14 modules


Sys m

od

ule

Sect

mo

du

le

Sect module

Sect module

Sys module

Sect module

Stack 2+2+2 8+8+8 Indoor 48V DC 4+4+4 Outdoor with Batteries

2 TRX, wall Stack 4+4+4

Examples of Nokia Flexi EDGE BTS configurations

DTRX

DTRX

DTRX

DTRX

DTRX

DTRX

DTRX

DTRX

DTRX

Sys ext module

Sys module

Sys ext module

DTRX (Dual TRX)

Sector module (DTRX + duplex filter)

GSM/EDGE Modules

DTRX

DTRX

DTRX

Weight: ~150 kg

Low weight load of Nokia Flexi EDGE BTS simplifies site construction work

Weight: ~100 kg Weight: ~250 kg

DTRX

MIBBU

HEX LTE

LTE

LTE

LTE

FAN batt batt batt batt

DTRX DT

RX

Sect module

Sect module

Sect module

Sys module

Sect module

Sect module

Sys module

Sect

mo

du

le

Sect module

Sect module

Sect module

Sys module


GSM 4+4+4 & WCDMA 4+4+4

WCDMA/HSPA Modules

2+2+2 4+4+4

GSM/EDGE

GSM/EDGE

GSM/EDGE/ WCDMA/HSPA

GSM/EDGE

WCDMA/ HSPA

RF module

DTRX

DTRX

DTRX

Example of Nokia Flexi BTS growth path

Sys module

Sys ext module

DTRX (Dual TRX)

Sector module (DTRX + duplex filter)

GSM/EDGE Modules

Sys module

RF module

Sys module

RF module

RF module

Sect module

Sys module

Sect module

Sect module

Sect module

Sys module

Sect module

Sect module

DTRX

DTRX

DTRX

Sect module

Sys module

Sect module

Sect module


Configurations in this material

Common Configurations

• 1 TRX 1UD – Simplest configuration

• 2 TRX bypass, 2UD

• 4+4+4, 2UD

• 3+3 Upgrade Optimised

Large Configuration

• 8+8+8 4-way combining, 2UD, single cabinet

• 6+6+6 RTC – (one sector only shown)

New features /SRC

• 1+1+1 DP 2UD

• 2+2+2 IDD 4UD

1 TRX, no diversity. Simplest possible configuration


1-TRX Combining Bypass, 1UD schematic

LNA

LNA

Du

ple

xe

r D

up

lex

er

LNA+ Multi-

coupler

LNA+ Multi-

coupler

Du

ple

xe

r D

up

lex

er

Dual Duplexer Dual TRX

TX1

RX1 Main Div

RX2 Main Div

TX2

Div

Antenna

_

Simplest possible configuration.

DIV


1 TRX combining bypass, 1UD – Module view


1 TRX combining bypass, 1UD - Connected

2 TRX Combining By-pass with 2-way RX diversity 2 TRX/Sector, 2 antennas


2 TRX Combining By-pass with 2-way RX diversity (2UD) - Schematic

Example: 2 TRX/cell

LNA

LNA

Du

ple

xe

r D

up

lex

er

LNA+ Multi-

coupler

LNA+ Multi-

coupler

Du

ple

xe

r D

up

lex

er

Dual Duplexer Dual TRX

TX1

RX1 Main Div

RX2 Main Div

TX2

Div

Antennas

X


2 TRX Combining By-pass with 2-way RX diversity (2UD) – Module View

2 TRX/Cell configuration


2 TRX Combining By-pass with 2-way RX diversity (2UD) -Solution:

2 TRX/Cell configuration

2-way Wideband Combining with 2-way RX diversity E.g., 4+4+4, 2 antennas per sector


Example: 4 TRX/cell

Dual TRXs

2-way Wideband Combining with 2-way RX diversity - Schematic

Antennas

X

TX1

RX1 Main Div

RX2 Main Div

TX2

Div

TX3

RX3 Main Div

RX4 Main Div

TX4

Div

Dual Duplexer

LNA

LNA

Du

ple

xe

r D

up

lex

er

LNA+ Multi-

coupler

LNA+ Multi-

coupler

Du

ple

xe

r D

up

lex

er

Wideband Combiners

WBC

WBC


Example: 2-way, 2UD – Module view Example: 4 TRX/cell (4+4+4, one sector)


Example: 2-way, 2UD, TX and RX Cabling Example: 4 TRX/cell (4+4+4, one sector)


3+3 Cost-optimised 2-way RX diversity (2UD)

One DTRX is split between two cells:

DDU 1

TxA TxB RxA

1 RxA

2 RxA

3 RxA

4 RxB

1 RxB

2 RxB

3 RxB

4 ExtB ExtA RxAI RxAO

DTRX 1

WBC

TxA TxB

RX 1 RX 1 Div RX 2 RX 2 Div

T XA T XB T X OUT

DP

DTRX 2

WBC

TxA TxB


T XA T XB T X OUT

DP

DDU 2

TxA TxB RxA

1 RxA

2 RxA

3 RxA

4 RxB

1 RxB

2 RxB

3 RxB

4 ExtB ExtA RxAI RxAO

DTRX 3

WBC

TxA TxB


T XA T XB T X OUT

DP WBC

T XA T XB T X OUT

DP

8+8+8, 2 antennas/cell 4-way combining, 2-way Uplink Diversity 1 cabinet


4-way Wideband Combining with 2-way RX diversity (2UD)

Dual Duplexer

Antennas

X

LNA

LNA

Du

ple

xe

r D

up

lex

er

WBC WBC

WBC

WBC

Wideband Combiners Dual TRXs

WBC

WBC

TX1

RX1 Main Div

RX2 Main Div TX2

Div

TX3

RX3 Main Div

RX4 Main Div TX4

Div

TX5

RX5 Main Div

RX6 Main Div TX6

Div

TX7

RX7 Main Div

RX8 Main Div TX8

Div

LNA+ Multi-

coupler

LNA+ Multi-

coupler

Du

ple

xe

r D

up

lex

er

Example: 8 TRX/cell

For each sector:

14 TRX cables

8 Receive cables


EDGE/BTS 8+8+8 WBC 4:1

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16 17 18 19 20

21 22 23

24 25 26

27 28 29 30

31 32 33

34 35 36

DTRX 1

DTRX 2

DTRX 4

ESMA

DDU 1

DTRX 3

T

DTRX 5

DTRX 6

DTRX 8

DDU 2

DTRX7

DTRX 9

DTRX 10

DTRX 12

DDU 3

DTRX 11

ESEA

WBC 1

WBC 2 WBC 3

WBC 4 WBC 5

WBC 8 WBC 9

WBC 10 WBC 11

WBC 14 WBC 15

WBC 16 WBC 17

WBC 6

WBC 7

WBC 12

WBC 13

WBC 18

8+8+8

4-way

2UD


NOTE:

1) One sector shown in picture.

2) All three sectors have identical cabling

structure.

3) Before continuing to the next sector be sure

that all cables are correctly installed.

4) It's recommended to use empty boxes in table

as an connection check list.

SECTORS

NUMBER CABL

E FROM – TO A B C

1 99493

1 TxA - TxA

(WBC)

2 99493

1 TxB - TxB

(WBC)

3 99493

1 (WBC)TxOut -

TxB(WBC)

4 99493

1 TxA - TxA

(WBC)

5 99493

1 TxB - TxB

(WBC)

6 99493

1 (WBC)TxOut -

TxA(WBC)

7 99493

1 (WBC)TxOut -

TxA (DDU)

8 99493

1 TxA - TxA

(WBC)

9 99493

1 TxB - TxB

(WBC)

10 99493

1 (WBC)TxOut -

TxA(WBC)

11 99493

1 TxA - TxA

(WBC)

12 99493

1 TxB - TxB

(WBC)

13 99493

1 (WBC)TxOut -

TxB(WBC)

14 99493

1 (WBC)TxOut –

TxB(DDU)

RF Cables, Tx

3

4

2

6

5

14

8 9 10


13

12

11

7

1


RF Cables, Rx

SECTORS

NUMBER CABL

E FROM – TO A B C

1 994933 RxA – RxA4

2 994933 RxB – RxB4

3 994931 RxA – RxA1

4 994931 RxB – RxB3

5 994931 RxA – RxA3

6 994931 RxB – RxB2

7 994931 RxA – RxA2

8 994931 RxB – RxB1

1

3

4

2

6 5

8 7

NOTE:


2) All three sectors have identical cabling

structure.

3) Before continuing to the next sector be sure

that all cables are correctly installed.

4) It's recommended to use empty boxes in table

as an connection check list.


6+6+6, Remote Tune Combiner (1 Cabinet)


Remote Tune Combining with 2-way RX diversity -One sector of a 6+6+6

With RTC up to 6 Tx signals can be combined into 1 antenna, minimizing the combiner loss


Flexi EDGE BTS 6+6+6 RTC


Module order

RTC 1

DTRX

RTC 2

DTRX

ESEA

RTC 3

DTRX

ESMA.

DTRX

DTRX

DTRX

DTRX

DTRX

DTRX

Flexi EDGE BTS 6+6+6 RTC

NOTE:


2) All three sectors have identical

cabling structure.

3) Before continuing to the next sector

be sure that all cables are

correctly installed.

4) It's recommended to use empty

boxes in table as an connection

check list.

SECTORS

NUMBER

CABLE

FROM – TO(DTRX)

A B C

1 99493

1 TX1 - TxA

2 99493

4 TX2 - TxB

3 99493

4 TX3 - TxA

4 99493

4 TX4 - TxB

5 99493

5 TX5 - TxA

6 99493

5 TX6 – TxB

RF Cables, TX cables

Flexi EDGE BTS

6+6+6 RTC

DTRX 1

TxA TxB


DTRX 2

TxA TxB


DTRX 3

TxA TxB


ANT

RTC

Rx 1 Rx 2 Rx 3 Rx 4 Rx 6 Rx 5

Tx 1 Tx 2 Tx 3 Tx 4 Tx 6 Tx 5

R X DIV

R X ext I n R X ext Out

NOTE:


2) All three sectors have identical

cabling structure.

3) Before continuing to the next sector

be sure that all cables are

correctly installed.

4) It's recommended to use empty

boxes in table as an connection

check list.

SECTORS

NUMBER

CABLE

FROM – TO (DTRX)

A B C

1 99493

1 RX1 - RxA

2 99493

1 RX2 - RxB

3 99493

1 RX3 - RxA

4 99493

1 RX4 - RxB

5 99493

4 RX5 - RxA

6 99493

4 RX6 – RxB

RF Cables, RX cables

Flexi EDGE BTS

6(+6+6) RTC

DTRX 1

TxA TxB

RX1 RX1 Div RX2 RX2 Div

DTRX 2

TxA TxB


DTRX 3

TxA TxB


ANT

RTC

Rx1 Rx2 Rx3 Rx4 Rx6Rx5

Tx1 Tx2 Tx3 Tx4 Tx6Tx5

RX DIV

RX ext InRX ext Out

(Optional) Other configurations


Remote Tune Combining with 2-way RX diversity

Ext-RF Cable


Double Power TRX with 2-way RX diversity

Wideband Combiners (coherent) EWxA

Dual Duplexer

Example: 1 TRX/cell

LNA+ Multi-

coupler

LNA+ Multi-

coupler

Du

ple

xe

r D

up

lex

er EWxA

Dual TRX

TX1

RX1 Main Div

RX2 Main Div

TX2

Div

• DPTRX is achieved by coherently combining Tx signals of 2 carriers within

DTRX

• Single TRX capacity

• DPTRX provides 2.5 dB gain in output power

• Requires EWxA

Phase feedback

MHA

Antennas and MHAs

X


Antennas

X

X

Wideband Combiners (coherent)

Dual Duplexers

DTRX Units

Double Power TRX with 4-way RX diversity

Example: 2 TRX/cell

EWxA TX1

RX1 Main Div

RX2 Main Div

TX2

TX3

RX3 Main Div

RX4 Main Div

TX4

Phase feedback

Phase feedback

LNA+ Multi-

coupler

LNA+ Multi-

coupler

Du

ple

xe

r D

up

lex

er

EWxA

LNA+ Multi-

coupler

LNA+ Multi-

coupler

Du

ple

xe

r D

up

lex

er


Dual Duplexer

LNA+ Multi-

coupler

LNA+ Multi-

coupler

Du

ple

xe

r D

up

lex

er

Antennas and MHAs

X

Dual TRX

TX1

RX1 Main Div

RX2 Main Div

TX2

Div

IDD and 2-way RX diversity (with MHA) Example: 1 TRX/cell

• Intelligent Downlink Diversity (IDD) is an effective way of boosting the downlink: it is based on space and time diversity and signal tuning

• IDD gives on average 5 dBm gain in downlink path

MHA


LNA+ Multi-

coupler

LNA+ Multi-

coupler

Du

ple

xe

r D

up

lex

er

LNA+ Multi-

coupler

LNA+ Multi-

coupler

Du

ple

xe

r D

up

lex

er

X

Dual Duplexers

Dual TRXs

TX1

RX1 Main Div

RX2 Main Div

TX2

TX3

RX3 Main Div

RX4 Main Div

TX4

Smart Radio Concept (SRC): IDD with 4-way RX diversity with MHA

Example: 2 TRX/cell

Antennas and MHAs

MHA

X


Nokia Flexi EDGE BTS RF performance

BTS Output Power DTRX 800/900/1800/19

00

DPTRX 800/900/1800/1900

Max # of TRXs /

antenna element

Frequency hopping

dBm W dBm W

TRX output 47.0 50 49.5 89.5 - -

IDD 50.5 112 53 200 1 RF & BB

Combiner by-pass 46.2 41.7 48.5 71 1 RF & BB

RTC 44.0 25 6 BB

WBC 2:1 42.7 18.5 2 RF & BB

WBC 4:1 39.4 8.7 4 RF & BB

BTS Receiver Sensitivity, with Nokia High Gain MHA

Sensitivity 800/900&1900

Sensitivity 1800

dBm dBm

4-way diversity -118 -118.5

2-way diversity -115.5 -116

Single branch -112.5 -113

NOTE: RF performance results are not finalized.


Nokia Flexi EDGE BTS output power

BTS nominal output power values are measured at the Dual Duplexer module’s antenna connector (same as TOC figures of traditional cabinets)

Output power values are defined with GMSK modulation. With 8-PSK modulation, values are 2 dB smaller.

Intelligent Downlink Diversity (IDD) doubles (~3 dB) the received signal power at the handset and multiple diversity gains add downlink by average of 1-2 dB, giving average 4.5 dB gain in total. Shown output power values are after air-combining without antenna gain.

Combining options: • Combiner by-pass = No combining – 1 TRX to one antenna

• WBC 2:1 = One stage Wide Band Combining – 1...2 TRXs to one antenna

• WBC 4:1 = Two stage Wide Band Combining – 1...4 TRXs to one antenna

• RTC 6:1 = Remote Tune Combining (cavity combining) – 1...6 TRXs to one antenna

Output power values for RTC are given with 6 TRX and minimum channel spacing. With less TRXs and extended channel spacing, output power is up to 0.5 dB higher.

Minimum and Maximum configurations

Capacity Expansion Steps

RF Cabling

Combining Options


One Sector configuration table

#of carriers

Combining # of EXxA

# of ERxA

# of ECxA

# of ESMA

# of ESEA

height # of antennas

1 By-pass 1UD 1 1 0 1 0 3HU 1

1-2 By-pass 2UD 1 1 0 1 0 3HU 2

2 2-way 1UD 1) 1 1 0 1 0 3HU 1

3 By-pass 2UD 2 2 0 1 0 6HU 3

4 By-pass 2UD 2 2 0 1 0 6HU 4

3-4 4-way 1UD 1) 2 1 0 1 0 5HU 1

1 By-pass DP 2UD 1 1 0 1 0 3HU 2

2 By-pass DP 2UD 2 1 0 1 0 5HU 2

3 By-pass DP 2UD or 4UD

3 2 0 1 0 8HU 3 or 4

4 By-pass DP 2UD or 4UD

4 2 0 1 0 10HU 4

1-2 By-pass SRC 1) or DP 4UD

2 2 0 1 0 6HU 4

3-4 2-way 2UD 2 1 0 1 0 5HU 2

5-6 4-way 2UD 3 1 0 1 0 7HU 2

7-8 4-way 2UD 4 1 0 1 0 9HU 2

Up to 12 RTC Up to 6

0 Up to 2

1 1 Up to 20HU

2

1) supported with SCF overrule 2) SRC==IDD+4UD


Stack configuration table

Configuration Combining # of EXxA

# of ERxA

# of EWxA

# of ESMA

# of FPAA

Max Height 1)

# of Antennas

1 to 2 omni By-pass 2UD 1 1 0 1 1 9HU 2

3 to 4 omni 2-way 2UD 2 1 2 1 1 11HU 2

5 to 6 omni 4-way 2UD 3 1 6 1 2 13HU 2

7 to 8 omni 4-way 2UD 4 1 6 1 2 15HU 2

1+1 By-pass 1UD 1 1 0 1 1 9HU 2

1+1 or 2+2 By-pass 2UD 2 2 0 1 1 12HU 4

3+3 By-pass 2UD 3 2 4 1 2 14HU 4

4+4 By-pass 2UD 4 2 4 1 2 16HU 4

1+1+1 or 2+2+2 By-pass 2UD 3 3 0 1 2 15HU 6

3+3+3 2-way 2UD 5 2) 3 6 1 3 19HU 6

4+4+4 2-way 2UD 6 3 6 1 3 21HU 6

1+1+1 By-pass DP 2UD 3 3 3 1 2 15HU 6

2+2+2 By-pass DP 2UD 6 3 6 1 3 21HU 6

1+1+1 or 2+2+2 By-pass DP or SRC 3) 4UD

6 6 3 or 6 1 0 21HU 12

2+2+2/2+2+2 dual band

By-pass 2UD 6 6 0 1 0 21HU 12

1) Assuming built for Cost-optimised. Upgrade-optimised needs 6 x EXxA. 2) SRC==IDD+4UD 3) Inc. FPMA


Pole and Wall mount configuration table

Configuration Combining # of EXxA

# of ERxA

# of EWxA

# of ESMA

# of FPAA

# of stacks

# of antennas

1 to 2 omni By-pass 2UD 1 1 0 1 1 1 2

3 to 4 omni 2-way 2UD 2 1 2 1 1 2 2

5 to 6 omni 4-way 2UD 3 1 6 1 2 2 2

7 to 8 omni 4-way 2UD 4 1 6 1 2 3 2

1+1 By-pass 1UD 1 1 0 1 1 1 2

1+1 or 2+2 By-pass 2UD 2 2 0 1 1 2 4

3+3 By-pass 2UD 3 2 4 1 2 2 4

4+4 By-pass 2UD 4 2 4 1 2 3 4

1+1+1 or 2+2+2 By-pass 2UD 3 3 0 1 2 2 6

3+3+3 2-way 2UD 5 3 6 1 3 3 6

4+4+4 2-way 2UD 6 3 6 1 3 4 6

1+1+1 By-pass DP 2UD 3 3 3 1 2 2 6

2+2+2 By-pass DP 2UD 6 3 6 1 3 4 6

1+1+1 or 2+2+2 By-pass DP or SRC 4UD

6 6 3 or 6 1 3 4 12

2+2+2 /2+2+2 dual band

By-pass 6 6 0 1 3 4 12


Indoor or Outoor cabinet configuration table

Configuration Combining EXxA’s ERxA’s ECxA’s ESMA’s ESEA’s height antenna

1 to 2 omni By-pass 2UD 1 1 0 1 0 6HU 2

3 to 4 omni 2-way 2UD 2 1 0 1 0 8HU 2

5 to 6 omni 4-way 2UD 3 1 0 1 0 10HU 2

7 to 8 omni 4-way 2UD 4 1 0 1 0 12HU 2

1 to 6 omni RTC 2UD 1 to 3 0 1 1 1 19HU 2

7 to 12 omni RTC 2UD 4 to 6 0 2 1 1 29HU* 2

1+1 By-pass 1UD 1 1 0 1 0 6HU 2

1+1 or 2+2 By-pass 2UD 2 2 0 1 0 9HU 4

3+3 By-pass 2UD 3 2 0 1 0 11HU 4

4+4 By-pass 2UD 4 2 0 1 0 13HU 4

1+1+1 or 2+2+2 By-pass 2UD 3 3 0 1 0 12HU 6

3+3+3 2-way 2UD 5 3 0 1 0 16HU 6

4+4+4 2-way 2UD 6 3 0 1 0 18HU 6

1+1+1 By-pass DP 2UD 3 3 0 1 0 12HU 6

2+2+2 By-pass DP 2UD 6 3 0 1 0 18HU 6

1+1+1 or 2+2+2 By-pass DP or SRC 4UD

6 6 0 1 0 21HU* 12

6+6+6 RTC 2UD 9 0 3 1 1 36HU* 6

12 RTC 2UD 6 0 2 1 1 29HU* 2

12+6 RTC 2UD 9 0 3 1 1 36HU* 4

8+8+8 4-way 2UD 12 3 0 1 1 33HU* 6

* Two cabinets required


Flexi EDGE BTS Licensed Features & SW Compatibility


Licensed Flexi EDGE BTS features

In EP1:

• Flexi EDGE TRX capacity management

– Name of the licence in the purchasing tool: ‘Flexi EDGE Operating SW’

– Note: also known as ’Flexi EDGE TRX SW support’

In EP2:

• DPTRX i.e. Double Power TRX

• Transmission features


TRX Capacity Licence control in BSC

BSC checks that the licence is valid and that operator cannot have more Flexi EDGE TRXs in use than the licence allows.

Operator can also check the amount of Flexi EDGE TRXs that are in use.

The current capacity level usage is requested with service fmn_capacity_usage_inquiry_as from BSC software that has registered itself as capacity manager (PUBDAT).

Feature name Feature number

Feature code / Licence code

Licence type Licence Time limited (short term / long term)

Flexi EDGE TRX SW support

BSS20212 73 Feature: on/off long term


Allowed values of licensed transmission features in EP2

Feature (SW

licence)

Capacity

range

Used

licence

capasity by

BCF

Abis termination via

Pseudo-wire

Emulation

(FlexiEDGE Abis

over IP/ Ethernet)

ON/OFF 1

Abis termination via

E1/T1 in blocks of 2

(FlexiEDGE

Additional 2 E1/T1)

1...3/OFF 1 per blocks

of 2

Cross-connection

(FlexiEDGE TRS

Abis Grooming)

ON/OFF 1

Loop Protection

(FlexiEDGE TRS

Loop Protection)

ON/OFF 1


Flexi EDGE BTS EP1 SW Compatibility

Compatibility between Flexi EDGE BTS, BSC, NetAct, LMU and FIFA transmission

submodule software


Flexi EDGE BTS EP2 SW Compatibility

EP2.0

• EP2.0 will be the second Flexi EDGE BTS SW feature release.

• Flexi EDGE BTS EP2.0 release will be compatible with BSS13 and NetAct OSS4.2.

EP2.0 will support the following licensed features:

• DPTRX with 2UD and 4UD

• Transmission license management

Flexi EDGE BTS Feederless Site


Feederless Concept Masthead Solution

• One EOCA pair is needed per 3 DTRXs. In 3 sector system each EOCA pair supports 2+2+2 configuration.

• Maximum of 4+4+4 is supported in masthead configuration.

• Each 2+2+2 requires own DC Feed and Optical Fiber. This replaces six antenna feeders of 3-sector diversity configuration.

• Benefit in 4+4+4 configuration is smaller due to no new antenna feeders are required in feeder case and 2nd pair of DC and optical interfaces are needed in feederless case.

• 2+2+2 4-way diversity case saves 12 antenna feeders with two sets of DC and optical interfaces.


Feederless Concept Rooftop Solution

• Rooftop installation is mainly assumed to be 3-sector configuration.

• One corner is assumed to have one sector as local sector with System Module (and extension system module if over 6 DTRXs in system).

• Other corners are as remote sectors so overall two EOCA pairs are required for upto 6+6+6 configuration.

• Single Optical Cable and DC feed is needed per each remote corner upto 6+6+6+ configuration.

• Upto 8+8+8 configuration is supported with two EOCA pairs per remote sector.


48V Input

48V Output/Sense 1

BUS Interface 1

BUS Interface 2

BUS Interface 3

Optical Interface

48V Output/Sense 2

48V Output/Sense 3

OVP Plug-In Module

Unit Construction Interfaces

• EOCA contains: – Three BUS interfaces (one from back as pre-installed longer cable interface)

– Three 48V DC Output/Sense interfaces (one from back as pigtail interface)

– 48V DC input interface

– Optical Fiber Interface

– OVP Plug-In Module interface

• BUS interfaces are connected to ESMA or ESEA at local end and to DTRXs at remote end.

• 48V output/sense interfaces are connected to DTRXs at remote end. At local end they can be connected to ESMA if sensing is used. 48V control can be handled purely as commands over Ethernet and likely sensing will not be supported eventually to reduce amount of cables needed in the setup.

• Optical interface is connected between EOCA of local sector and EOCA of remote sector.

• DC inputs are connected to 48V source at local end. Remote can get its 48V from local end or locally from the 48V source at remote end.

Flexi EDGE BTS Configurations

Documents

ud module view

nokia siemens networks

configurations mna

trx bypass

dual band configurations

ud simplest configuration

material common configurations

ud schematic example