Connector Pin Numbers
The connector pins are numbered from right to left as indicated in the following
diagram:
Note:
The daughtercard connector can accept either an RJ11 or RJ45 connector.
If you are using an RJ11, pin 1 and pin 8 are not used.
ISDN Interface RJ45 Connector
The following table shows the pinouts for the RJ45 ISDN U and S/T interface
connection cable:
U Card
S Card
Pin Name
Function
Pin Name
Function
1
Battery Status
No connection
1
PS 3 +
No connection
2
Battery Status
No connection
2
PS 3 -
No connection
3
---
No connection
3
TE NT +
TE to NT pair, no
power connection
4
Signal
U interface tip
or ring
4
NT TE +
NT to TE pair, no
power connection
5
Signal
U interface tip
or ring
5
NT TE -
NT to TE pair, no
power connection
6
---
No connection
6
TE NT -
TE to NT pair, no
power connection
7
Powering
No connection
7
PS 2 -
No connection
8
Powering
No connection
8
PS 2 +
No connection