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Connector Pin-Outs on T1/PRI PCB
Network Interface Pinout for
the 8-Pin RJ48C Connector
Pin No.
Aspire ISDN PRI Manual
Primary Rate Interface (PRI) Installation
12345678
12345678
Connection
1
RxD (R1)
2
RxD (T1)
4
TxD (R)
5
TxD (T)
3, 6
No Connection
7, 8
No Connection
RJ45 Cable Connector - CN3
S-Bus Connection
Pin No.
1
2
3
4
5
6
7
8
RJ45 Cable Connector - CN3
T-Bus Connection
Pin No.
1
2
3
4
5
6
7
8
For connection to T1
network: Use AT&T
Type ABAM cable or
equivalent (individu-
ally-shielded twisted
pair, rated at 100 ohms
at 1 MHz).
ISDN Features
Connection
TA
TB
-
RA
RB
-
-
-
Connection
RA
RB
-
TA
TB
-
-
-
Terminal Interface Pinout for
the 8-Pin RJ48C Connector
Pin No.
Connection
1
RxD (R)
2
RxD (T)
4
TxD (R1)
5
TxD (T1)
3, 6
No Connection
7, 8
No Connection
7
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