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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
Pin Name
1
Battery Status
2
Battery Status
3
---
4
Signal
5
Signal
6
---
7
Powering
8
Powering
S Card
Function
Pin Name
No connection
1
No connection
2
No connection
3
U interface tip
4
or ring
U interface tip
5
or ring
No connection
6
No connection
7
No connection
8
Function
PS 3 +
No connection
PS 3 -
No connection
TE NT +
TE to NT pair, no
power connection
NT TE +
NT to TE pair, no
power connection
NT TE -
NT to TE pair, no
power connection
TE NT -
TE to NT pair, no
power connection
PS 2 -
No connection
PS 2 +
No connection
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