E1 module Installation

This section introduces E1 module.

E1module information

E1 module panel picture

Introduction of E1 module

Interface pin,cable pin,indicator lamp&line information

Interface Cable

Connecting picture of E1 module &outside equipment

E1module information

1-port E1 module(type:1 port of Channelized mode and Unchannelized mode E1/ISDN PRI Balanced and Unbalanced) supplies one DB15 interface to the outside.2-port E1 module (type:1 port of Channelized mode and Unchannelized mode E1/ISDN PRI Balanced and Unbalanced)supplies two DB15 interface to the outside.4-port E1 module(type:4 ports of Channelized mode and Unchannelized mode E1/PRI-Balanced and Unbalanced)supplies four DB15 interface to the outside.The module supports Unbalance(75ohm)&Balance(120ohm)tterminal impedances and supplies 75ohm cable with BNC connector and 120ohm cable with RJ45 connector.There are Channelized(rate:n×64Kbps,n=1~31)and Unchannelized(rate:2048Kbps) two kinds communication mode.DB15 interface has the feature of hot swap and avoiding body static electricity and thunder.

E1 module panel picture:

1-port E1 module: 

 

 2-port E1 module:

 

4-port E1 module:

 

 

Introduction to E1 module

Interface pin,cable pin,indicator lamp&line information

1-port E1 module interface uses one DB15 interface and 4-port E1 module interface uses fourDB15interfaces.

Port performance:

port performance

description

tie-in

DB-15

cable

DB-15/BNC(75ohm)

DB-15/RJ-45(120ohm)

interface standard

G..703/G..704

port rate(bps)

N*64K(N1~31);2M

protocol supported

X25、FRHDLCSLIPPPP

 

DB15 pin is as the follows:

number

name

english name

note

1

——

——

——

2

sending pin cathode

TxringTx—)

——

3

——

——

——

4

——

——

——

5

——

——

——

6

——

——

——

7

accepting shielded wire

Rx shield

——

8

accepting pin anode

RxtipRx+

——

9

sending pin anode

TxtipTx+

——

10

sending shielded wire

Tx shield

connect to module

11

——

——

——

12

——

——

——

13

——

——

——

14

——

——

——

15

accepting pin cathode

RxringRx—)

——

 

 

Relations of DB15 pin and cable pin :

 

C&UE1/PRI-B&U End

NETWORK End

DB15

RJ45

BNC

Pin

Signal

pin

Signal

Signal

9

TX Tip

1

TX Tip

TX Tip

2

TX Ring

2

TX Ring

TX Shield

10

TX Shield

3

TX Shield

 

8

RX Tip

4

RX Tip

RX Tip

15

RX Ring

5

RX Ring

RX Shield

7

RX Shield

6

RX Shield

 

  

Indicator lamp information of  1-port &4-port E1 module: 

1E1 indicator lamp

4E1 indicator

chinese name

description

SYNC0

SYNC0

state indicator lamp on port0

Channelized mode:light ON indicates testing carrier wave  and running well.light OFF indicates async,remote warning .

Unchannelized mode:light ON indicates testing carrier wave. light OFF indicates not tasting carrier wave.

/

SYNC1

state indicator lamp on port1

as above

/

SYNC2

state indicator lamp on port2

as above

/

SYNC3

state indicator lamp on port3

as above

Every E1 port of 1-port&4-port E1 module has one 8 bit dialing switch .1-port E1 module has one dailing switch and 4-port E1 module has four (the usage of 4 dialing switchs is the same).The following table takes one switch as the example to introduce the usage:

switch ON/OFFstate

switch information

using environment

NO.1: ON

RRING—75ohm

Interface 75ohm communication

NO.1: OFF

RRING—120ohm

Interface 120ohm communication

NO.2: ON ;  NO.3: OFF

RRING—0.1uF­—GND

Normally do not use

NO.2: ON ;  NO.3: ON

RRING­—GND

Normally do not use

NO.4: ON ;  NO.5: OFF

JRRING—0.1uF­—GND

Interface 75ohm, imbalance communication

NO.4: ON ;  NO.5: ON

JRRING—GND

Interface 75ohm, imbalance communication

NO.6: ON ;  NO.7: OFF

JRXSHIELD—0.1uF­—GND

The interface shields external disturbance

NO.6: ON ;  NO.7: ON

JRXSHIELD—GND

The interface shields external disturbance

NO.8: ON ;

JXRING­—GND

Interface 75ohm, imbalance communication

 

Interface cable

75ohm,with BNCconnector,unbalanced cable CABE1BNC is as the following picture:

120ohm,with RJ45 connetor,balanced cable CABE1RJ45 is as the follows:

connecting picture of E1 module and outside equipment

The connecting picture of 1-port E1 module and outside equipment by 120 ohm cable:

 

The connecting picture of 1-port E1 module and outside equipment by 75 ohm cable:

  

 

The connecting picture of 4-port E1 module and outside equipment by120ohm cable:

 

4-port E1 module connect to the outside equipment by75ohm cable: