Technical Data Port Pinouts - Page 51
Technical Data Port Pinouts
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 55 for cable details.
Note: Throughout the following, Tx = from IP Office and Rx = to IP Office.
Analog Trunk Ports (RJ45)
Pin No. Description
1-3 Do not use
4 Ring
5 Tip
Pin 1 Pin 8
6-8 Do not use
Power Fail and POT Ports (RJ45)
Pin No. Description
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.
DS/DT Ports (RJ45)
Pin No. Description
1-3 Do not use
4 Sig 1
5 Sig 2
Pin 1 Pin 8
6-8 Do not use
ISDN Port – BRI (RJ45)
Pin No. Description Signal Direction
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
IP Office Installation Manual Technical Data - Page 51
40DHB0002USCL – Issue 7 (09/25/2002) Port Pinouts