GE 68K System - Manual (Page 101)

68K System Monitor
User's Guide
GE Energy Services
General SWM0023-1.00 -2
Full Release 3-75
ST - Serial Test, Continued
Loop Test
Adapter The automatic loop-back test requires this DB-9 pin loop-back connector:
DCD 1
────┐
RXD 2
──┐ │
TXD 3
──┘ │
RTS 7
────┤
CTS 8
────┘
Selectable Data
Rates The command used in CCU-based and D25 products allows you to select the data
rate for the loopback test.
Supported data rates in bps are:
50 110
134 200
300 600
1050 1200
2400 4800
7200 9600
38400
!
WARNING
The command has failed when used for stress testing. Do not use the serial test for
that purpose!
You must only use it to verify the device driver for the communication port.