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Vidikron Vision Model 120 Owner’s Operating Manual 37
PRE
L
IMINAR
Y
RS-232 Controller
Connection
Use a “null-modem” 9-pin RS-232 cable to connect a PC or home theater control/automation
system (if present) to the RS-232/485 port on the VHD Controller; see
Figure 3-16.
For more information about using this connection, refer to Serial Communications on
page 67.
Figure 3-16. RS-232 Control System Connection
II I
TRIGG
RS-232 / 485
WIRED
REMOTESERVICE ONLY
SYSTEM CONTROL INTERFACE
HD
1
Y / G Pr / RPb / B
INPUTS
Service port.
Not for user
access
1
2
3 4 5
7
8 9
6
to Automation/
Control System
or PC
5 Ground
3 Transmit Data
2 Receive Data
(none of the other pins are used)