Alpha Omega Instruments 800 Series User Manual

WIRING THE OPTIONAL COMMUNICATIONS PORT
Connect the Series 800/850 TEC Controllers to a terminal or computer as follows:
Pin 1
RXD
TXD
GND
Straight Cable
RXD
TXD
GND
Rear View of
the
Series 800/850
Female DB-9
Connector
Note: If the Series 800 Thermoelectric Cooler Controller is equipped with the
Optional Communications Port, and there is difficulty communicating with the
instrument, try tipping over the input and output lines. Some EIA/RS-485
connections are called T+ / T- or A / B. With EIA/RS-232, try tipping over the TxD
and RxD connections. The communications link will not work unless these are
correct.
ALPHA OMEGA INSTRUMENTS CORP. Instruction Manual
Series 800/850 Thermoelectric Cooler Controller Page 99

Alpha Omega Instruments 800 Series Specifications

General

Brand	Alpha Omega Instruments
Model	800 Series
Category	Controller
Language	English