255-700-447
A-3
PacketStar
®
PSAX 2300 Multiservice Media Gateway User Guide
, Issue 1
Release 9.0.0
Appendix A Common Equipment Module Connections
Console Cable Adapters
The CPU2 module
ETHERNET
connector does not follow the standard Ether-
net wiring configuration. Under normal operation, you can only control the
system from either the
CONSOLE
connector or the
ETHERNET
connector when
you use a standard 8-wire Ethernet cable. If a situation occurs where simul-
taneous operation is required, the Ethernet cable must be modified so only
pins 1,2, 3, and 6 are connected through to the network.
Table A-4 lists the pin assignments for the non-standard RJ-45
ETHERNET
connector on the faceplate.
Console Cable Adapters
If you are using the console cable (supplied with the chassis) to connect to
the serial port of a personal computer (PC) or workstation, use either an
RJ-12-to-DB9 adapter or an RJ-12-to-DB25 adapter (both supplied with the
chassis). Table A-5 describes the pin assignments for RJ-12-to-DB9 adapter
and Table A-6 describes the pin assignments for RJ-12-to-DB25 adapter.
Table A-4. CPU2 Module ETHERNET Connector Pin Assignments
Pin
Description
1
TD+ (CPU2 t)
2
TD– (CPU2 transmit–)
3
RD+ (CPU2 )
4
Reserved
5
Reserved
6
RD– (CPU2 receive–)
7
Reserved
8
Reserved
Table A-5. RJ-12-to-DB9 Adapter Pin Assignments
RJ-12 Pins
DB9 Pins
Description
2
2
TX (CPU transmit)
3
3
RX (CPU receive)
4
5
Ground
Table A-6. RJ-12-to-DB25 Adapter Pin Assignments
RJ-12 Pins
DB25 Pins
*
*
Pins 4 (RTS) and 5 (CTS) are jumpered together and pins 6 (DSR) and
20 (DTR) are jumpered together.
Description
2
2
TX (CPU transmit)
3
3
RX (CPU receive)
4
7
Ground
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