Avaya IP Office Phone Manual Do Utilizador

This section provides the technical specifications for the IP Office ports with the exception 
of the USB port and cable.  All diagrams are viewed from the front. The USB port and 
cable (up to 5 meters) are standard. Refer to page 67 for cable details. 
Note: Throughout the following, Tx = from IP Office and Rx = to IP Office. 
 

 Pin No. 

1-3 

Do not use 

4 Ring 
5 Tip 

 

Pin 1

Pin 8

 

6-8 

Do not use 

 

 Pin No. 

1 & 3 

Do not use 

2 

Connected to pin 6* 

4 Ring 
5 Tip 
6 

Connected to pin 2* 

 

Pin 1

Pin 8

 

7-8 

Do not use 

 
* Pins 2 and 6 are shorted together and, via a ‘ringer’ capacitor, connected to in 5. 
 

 Pin No. 

1-3 

Do not use 

4 Sig 

1 

5 Sig 

2 

 

Pin 1

Pin 8

 

6-8 

Do not use 

 

 Pin No. 

3 

Transmit Data (Tx-A) 

Î

 

4 

Receive Data (Rx-A) 

Í

 

5 

Receive Data (Rx-B) 

Í

 

Pin 1

Pin 8

 

6 

Transmit Data (Tx-B) 

Î