Serial - Black Box ControlBridge CB-PS-12V User Manual

5.4 Serial

Bi-directional Serial RS-232/485
These bi-directional serial channels are used for RS-232 and RS-485 communication. Maximum speed is 115,200 bps. The
default mode for all channels is RS-232; you must set other modes in the programming application. For more details, see your
programming manuals.
RS-232 Mode
Output signal levels for RS-232 are in the -10 V to +10 V range. This is the default mode for all channels.
3-pin 3.5 mm
1 2 3
RS-485 Mode
You must set this mode in the programming application.
3-pin 3.5 mm Pin
1
2
1 2 3
3
Table 5-4. Serial ports on the ControlBridge units.
Unit
ControlBridge 100
ControlBridge 200
Table 5-5. RS-232 pinout.
Pin Signal
1 TxD
2 RxD
3 GND
Table 5-6. RS-485 pinout.
SERIAL RS-485
Signal Description
A+ RS-485 Data +
B- RS-485 Data -
GND Ground
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Serial port
3
1
SERIAL RS-232
Description
RS-232 Transmitted Data
RS-232 Received Data
Ground
Chapter 5: Connecting
1
Direction
From controller
To controller
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Page 25