Cables and Connectors
E1/PRI interface specifications
MAX 3000 Installation and Basic Configuration Guide
C-13
E1/PRI interface specifications
The MAX unit’s E1/PRI interface has cabling and port specifications.
During loss of power or whenever the MAX restarts, a relay closure returns the E1/PRI signal
to the WAN. That is, the E1/PRI line is looped back.
E1/PRI cable specifications
The WAN interface cables and plugs described in this section are available for the MAX unit’s
WAN interfaces. Use only the cable specifically constructed for transmission.
E1/PRI crossover cable: RJ-48C/RJ-48C
Install the RJ-48C/RJ-48C crossover when the WAN interface transmits on pins 5 and 4 and
receives on pins 2 and 1. Figure C-7 and Table C-12 show the pinouts.
Figure C-7. RJ-48C/RJ-48C crossover cable
Table C-12. RJ-48C/RJ-48C crossover cable specifications
Model number RJ-48C-X
Part number 2510-0059/0323-001
Pair #
Signal
(MAX)
Male RJ-48C
(MAX)
Male RJ-48C
(remote)
1
Receive
2
1
5
4
2
Transmit
5
4
2
1