C-4
APX 1000™ Getting Started Guide
Cabling and Connector Specifications
T1/PRI interface specifications
T1/PRI crossover cable: RJ-48C to RJ-48C
Before installing the RJ-48C to RJ-48C crossover cable, verify that the WAN transmits on pins
5 and 4 and receives on pins 2 and 1. Table C-3 and Figure C-1 show the pinouts.
Figure C-1. RJ-48C to RJ-48C crossover cable
.
Table C-3. RJ-48C to RJ-48C crossover cable specifications
Pair
Signal
(at the APX 1000)
Male RJ-48C
(APX 1000)
Male RJ-48C
(remote WAN)
1
Receive
2
1
5
4
2
Transmit
5
4
2
1
1 RECEIVE
2 RECEIVE
RECEIVE 1
RECEIVE 2
4 TRANSMIT
5 TRANSMIT
TRANSMIT 4
TRANSMIT 5
Male RJ-48C
Male RJ-48C