Comtrol C53 User Manual
Page 5
RS-422/RS-485 Pinouts
5
RS-422/RS-485 Pinouts
The RS-422/RS485 interface with the RJ45 Jack connector or Terminal Block Connector is shown as follows:
Note: Pin 6 and Pin 7 of the Terminal Block are for Power GND and Power Input, which is an alternate option for the power adapter. Be
careful that you DO NOT confuse the RS-422/RS-485 (Signal) GND with the power GND.
C52/C53 RS-422
RJ45 Jack
Terminal Block
Connector
Pinouts
Signals
Connector
Pinouts
Signals
1
TxD-(A)
1
TxD+(B)
2
RTS-(A)
2
TxD-(A)
3
RTS+(A)
3
RxD+(B)
4
Signal GND
4
RxD-(A)
5
TxD+(B)
5
Signal GND
6
RxD+(B)
6
Power GND
7
Signal GND
7
VCCA(9v)
8
CTS+(B)
9
CTS-(A)
10
RxD-(A)
C52/C53 RS-485
RJ45 Jack
Terminal Block
1
Data-(A)
1
Data+(B)
2
nc
2
Data-(A)
3
nc
3
nc
4
Signal GND
4
nc
5
Data+(B)
5
Signal GND
6
nc
6
Power GND
7
Signal GND
7
VCCA(9V)
1 2 3 4 5 6 7
R J - 4 5 C o n n e c t o r
T e r m i n a l B l o c k C o n n e c t o r
1 2 3 4 5 6 7 8 9 1 0