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September 2004
Wiring an RS232 Interface
(cont.)
Wiring an RS485 Interface
1-12
2. Route the flying leads end of the cable through the conduit hole
and wire the leads to the COMMUNICATION terminal block as
shown in Figure 1-5 on page 1-16. Connect the other end of the
cable to the printer, ANSI terminal or personal computer. Then,
secure the cable clamp.
3. Do one of the following:
•
Proceed to another section to continue wiring the AT868.
•
Reinstall the plastic shroud, replace the front cover on the
enclosure and tighten the screws.
Note: Consult the User's Manual for the external device to configure
it for use with the AT868.
Use the optional RS485 serial port to network multiple AT868 flow
transmitters to a single computer terminal. Upon request, the standard
RS232 port on the AT868 may be configured as a two-wire,
half-duplex RS485 interface, through a device such as the INMAC
Model 800052 RS232-RS422/RS485 converter.
Note: If the AT868 is configured at the factory for RS485 operation,
the INMAC converter is not necessary.
Proceed to the appropriate following section to wire the RS485
interface.
Installation
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