Page 50 - Technical Data
Re
ISDN Port – PRI (RJ45)
Pin No.
Description
Signal Direction
1
Receive Data (Rx-A)
Í
2
Receive Data (Rx-B)
Í
4
Transmit Data (Tx-A)
Î
Pin 1
Pin 8
5
Transmit Data (Tx-B)
Î
LAN Port – 10/100 BaseT
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.
Description
Signal
Direction
1
Receive Data (Rx-A)
Í
2
Receive Data (Rx-B)
Í
3
Transmit Data (Tx-A)
Î
Pin 1
Pin 8
6
Transmit Data (Tx-B)
Î
DTE Port (25 Way or 9 Way D-Type socket)
Pin 25
Pin 1
Pin 9
Pin 1
Pin No (25
Way).
Pin No (9
Way).
Description Signal
Direction
2
3
Receive Data (Rx)
Í
3
2
Transmit Data (Tx)
Î
4
7
Request to Send (RTS)
Í
5
8
Clear to Send (CTS)
Î
6
6
Data Set Ready (DSR)
Î
7 5 Signal
Ground
8
1
Data Carrier Detect
(DCD)
Î
20
4
Data Terminal Ready
(DTR)
Í
22
9
Ring Indicator (RI)
Î
Page 50 - Reference Section
Installation Manual
38DHB0002UKGA Issue 1 (12/05/2004)
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