HP J3188A, Installation And Reference Manual

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A-4
Cables and Connectors
RS-232 Connector and Cable Pin-Outs
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RS-232 Connector and Cable Pin-Outs
The Management Module’s RS-232 port connector is wired as depicted in the
following table.
Use the RS-232 port to connect a PC to be used as the console. To make this
connection, you must use a null modem cable or you can use the minimum
cable pin-out described below.
This appendix lists cables that have been tested and verified for use with the
HP Hub-16M. It also includes minimum pin-out information so, if you wish to
use an unlisted cable, you can verify that the cables used in your installation
are correctly wired. Note that each pin-out does not necessarily match the
pin-out for the corresponding HP cable, but cables manufactured to follow
the minimum pin-out will function correctly.
N o t e
Incorrectly wired cabling is the most common cause of problems for LAN
communications. HP recommends that you work with a qualified LAN cable
installer for assistance with your cabling requirements.
PIN US CCITT DIN
1 DCD 109 M5
2 Rx 104 D2
3 Tx 103 D1
4 DTR 108 S1
5 GND 102 -
6 DSR 107 M1
7 RTS 105 S2
8 CTS 106 M2
9 RI 125 M3
MUCHO.BK : CA.FM5 Page 4 Thursday, June 26, 1997 11:37 AM