9
PIN-OUT INFORMATION
Terminal Block (TB3) Pin-out
The following are the connector pin-outs for 6-pin terminal block connector.
Pin Number
Pin Type
Description
1 TxD
Input
Receive data from RS-232 TxD signal
2 RxD
Output
Send data to RS-232 RxD signal
3 GND
Ground
GND: signal ground
4 Data+
Input/Output
RS-485 transmit/receive data, positive polarity
5 Data-
Input/Output
RS-485 transmit/receive data, negative polarity
6 GND
Ground
GND: signal ground
Terminal Block (TB1) Pin-out
The following are the connector pin-outs for 10-pin terminal block connector (slave).
Pin
Number
Pin Type
Description
1 Data1+
Input/Output
RS-485 Port 1: transmit/receive data, positive
polarity
2 Data1-
Input/Output
RS-485 Port 1: transmit/receive data, negative
polarity
3 Data2+
Input/Output
RS-485 Port 2: transmit/receive data, positive
polarity
4 Data2-
Input/Output
RS-485 Port 2: transmit/receive data, negative
polarity
5 GND
Ground
GND: isolated signal ground
6 Data3+
Input/Output
RS-485 Port 3: transmit/receive data, positive
polarity
7 Data3-
Input/Output
RS-485 Port 3: transmit/receive data, negative
polarity
8 Data4+
Input/Output
RS-485 Port 4: transmit/receive data, positive
polarity
9 Data4-
Input/Output
RS-485 Port 4: transmit/receive data, negative
polarity
10 GND
Ground
GND: isolated signal ground
