Mike's PBX Cookbook

IP Office Port Pinouts

Note: Throughout the following, Tx = from IP Office and Rx = to IP Office.


Analog Trunk Ports (RJ45)

Pin No.Description
1-3Do not use
4Ring
5Tip
6-8Do not use

Power Fail and POT Ports (RJ45)

Pin No.Description
1&3Do not use
2Connected to pin 6*
4Ring
5Tip
6Connected to pin 2*
7&8Do 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
1-3Do not use
4Sig 1
5Sig 2
6-8Do not use

ISDN Port - BRI (RJ45)

Pin No.DescriptionSignal Direction
3Transmit Data (Tx-A)
4Receive (Rx-A)
5Receive (Rx-B)
6Transmit Data (Tx-B)

ISDN Port - PRI (RJ45)

Pin No.DescriptionSignal Direction
1Receive (Rx-A)
2Receive (Rx-B)
4Transmit Data (Tx-A)
5Transmit Data (Tx-B)

LAN Port - 10/100 BaseT (RJ45)

For IP Office 403/406 the information below refers to LAN ports 1 – 7. Port 8 is switchable in software (exchanges Tx and Rx signals).
For IP412 and WAN3, both ports have the Rx and Tx connections exchanged.

Pin No.DescriptionSignal Direction
1Receive (Rx-A)
2Receive (Rx-B)
3Transmit Data (Tx-A)
6Transmit Data (Tx-B)

DTE Port (25 Way or 9 Way D-Type socket)

Pin No. (25 Way)Pin No. (9 Way)DescriptionSignal Direction
23Receive Data (Rx)
32Transit Data (Tx)
47Request to Send (RTS)
58Clear to Send (CTS)
66Data Set Ready (DSR)
75Signal Ground
81Data Carrier Detect (DCD)
204Data Terminal Ready (DTR)
229Ring Indicator (RI)

Audio Port (3.5mm Stereo Jack Socket)

Pin No.DescriptionSignal Direction
CommonCommon
LeftAudio In - Left Channel
RightAudio In - Right Channel

Expansion Port (RJ45 Socket)

Pin No.DescriptionSignal Direction
1Receive (Rx-B)
2Receive (Rx-A)
3Sync-B
4Clock (Clk-B)
5Clock (Clk-A)
6Sync-A
7Transmit Data (Tx-B)
8Transmit Data (Tx-A)
ShieldConnected to chassisGround

External Control Port (3.5mm Stereo Jack Socket)

Pin No.Description
1Circuit 1
2Circuit 2
30 Volts (Ground/Chassis)
4Not Connected
5Not Connected

Control CircuitInformation
Control Circuit 1Pin 2 & 3, ensure that Pin 2 is at a positive voltage with respect to Pin 3.
Control Circuit 2Pin 1 & 3, ensure that Pin 1 is at a positive voltage with respect to Pin 3.

Each circuit can be switched independently.

Switch SettingInformation
ONLow resistance between Pins.
OFFHigh resistance between Pins.

WAN Port (37 Way D-Type Socket)

Pin No.DescriptionSignal Dir.Pin No.DescriptionSignal Dir.
1V11 Rx-B20V11 Rx-A
2V11 Ind-A21V11 Ind-B
3V11 Clk-A22V11 Clk-B
4V11 Tx-A22V11 Tx-B
5V11 Ctl-B24V11 Ctl-A
6V11 Gnd25WAN ID 0
7WAN ID 126V24 Tx
8V24 DTR27V24 RTS
9V24 Rx28V24 RxClk
10V24 TxClk29V24 RI
11V24 DCD30V24 DSR
12V24 CTS31N/C
13N/C32V35 Tx-A
14V35 Tx-B33V35 SCTE-A
15V35 SCTE-B34V35 Gnd
16V35 Rx-B35V35 Rx-A
17V35 TxClk-B36V35 TxClk-A
18V35 RxClk-B37V35 RxClk-A
19CHASSIS

Notes:
1. For the USA, only FCC Part 68 registered data circuit terminal equipment should be connected to the WAN Ports.
2. * For X21, V24/28 and V35 variants, pins 7 and 25 are connected as follows:
X21: Pin 7 is connected to pin 6
V24/28: Pin 25 is connected to pin 6
V35: Pins 7 and 25 are connected to pin 6 Page

Source: Avaya documentation