Copyright 2010 Baker Hughes Company.
English–TERPS Instruction Manual | 11
5.3 RS-485 Connections
Standalone RS-485 electrical connections:
i.
RS-485 B (or RS-485 -)
ii. +ve supply
iii. 0V supply
iv. RS-485 A (or RS-485 +)
v. Transducer body (screen)
Note:
For electrical connections refer to the sales data sheet.
Other connectors available, refer to manufacturer.
Figure
4: RS-485 Direct Connection
Figure
5: RS-485 Network Connection
5.4 RS-232 Connections
Standalone RS-232 electrical connections:
i.
RS-232 Tx
ii. +ve supply
iii. 0V supply
iv. RS-232 Rx
Pressure
11 - 28 V DC
0 V
RS-485 A
RS-485 B
Pressure
Device 1
Address 1
Pressure
Device 2
Address 2
Pressure
Device 3
Address 3
+
0V
+
0V
+
0V
RS-485
Terminator
RS-485
Terminator
RS-485
Interface
RS-485 +
RS-485 –
