Vanguard Managed Solutions 7300 Series Benutzerhandbuch

 

B-5

This section describes the cable requirements for the T1/E1/PRI Card.

The T1/E1/PRI card requires one of the following cables to connect to the
T1/E1 network:

• RJ48-to-RJ48 twisted-pair cable to connect to a T1 network (minimum 26 

AWG wire).

• RJ48-to-RJ48 twisted-pair cable to connect to a E1 network having 120-Ohm 

line impedance. (ETSI-TBR-013 requires that this cable be constructed of 
solid conductors of 0.4mm to 0.6mm.)

• 2 BNC-to-BNC 75-Ohm coaxial cables to connect to an E1 network that has 

75-Ohm line impedance.

This table describes the RJ48C connector pinout:

BNC Adapter Cable A BNC adapter cable provides two BNC connectors to connect to an E1 network

with 75-Ohm

 

line impedance. Use these adapter cables:

• BNC connector marked XMIT for transmit (TX). 

• BNC connector marked REC for receive (RX).

1

Receive Ring

2

Receive Tip

3

(no connection)

4

Transmit Ring

5

Transmit Tip

6

(no connection)

7

(no connection)

8(no connection)