TESTSING THE SERIAL PORTS
The 2 serial ports of the DNC 600S are SUB-D 9P, plugs J5 and J6.
Introduce and verify that the transmission parameters are programmed
as follows:
PARAMETERS RS232 / DIVERS
. . .
-- COMPUTER LINK –-
106 BAUD RATE 4800 STOP 1.0
PARITY ODD(1) EVEN(2) _ BITS 8
PROTOCOLE _ BCC ___
Set a test loopback connector on the serial line connector RS232 to be
tested.
Press the
key to
The message RUN must flash.
start the test.
To stop the test, press the
(STOP) key.
If you wish as well to test the
Connect the transmission cable to the DNC and fit a short circuiting
loopback connector on the other end
cable:
of the cable to be tested.
est Loopback Connector T
Pin 2 (RXD) wired to pin 3 (TXD)
Pin 4 (DTR) wired to pin 6 (DSR)
Pin 7 (RTS) wired to pin 8 (CTS)
RS 232 Transmission Cable
The shield must be
connected on the metallic
hood of the
Sub-D plugs.
APPENDIX H: TRANSFER PAGE 79
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