User`s guide

C-1
APPENDIX C
NULL MODEM CABLE PINOUTS
To connect LCM you need to insert a null modem cable at either
the terminal end or the ATX port end. The null modem cable can
be either a female DB25 or DB9 straight-through serial cable.
Pinout information is provided in Figure C-1.
Figure C-1. Connector Pin Configuration For DB25 Null Modem Cable
Protective ground
11
Transmitted data
22
Received data
33
Request to send
44
Clear to send
55
Signal ground
common return
77
Data set ready
66
Received line
signal detector
88
Data terminal
ready
20 20
Unassigned
11 11
Secondary
received line
signal indicator
12 12