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5-9
External Programming Connections
The 801G* can operated and programmed from an
external computer or terminal. Two different com-
munications ports are standard on the 801G* for a
computer or terminal hook-up. The RS-232C serial
port allows the unit to be connected to many per-
sonal computers or dumb terminals.The IEEE-488
(GPIB) port lets you use the 801G* as a program-
mable video signal source source in a larger auto-
mated test system.
This section of the manual covers the actual hard-
ware connections and the communications protocol.
The “Programming” chapter provides detailed in-
formation on all of the 801G*’s programming capa-
bilities. It also includes all of the commands that
can be sent to the unit.
Display Codes & Serial Port Connections
Serial Port Connection
The 801G* uses a 9 pin male D-sub plug as the se-
rial port connector. The pin-out of the connector is
the same as on a serial port for an IBM-PC AT com-
puter. A suitable null-modem cable (part #30-00124)
is supplied with the 801G* to connect it to such a
port. This cable has female connectors on each end
that are wired for direct connection from the 801G*
to such a computer. Either end of the cable can be
plugged into the 801G*.
Figure 5-3 Serial & IEEE-488 Ports