B&B Electronics MESR901 Specifications download pdf (Page 13)

2. Hardware Vlinx MESR9xx Modbus Gateway

Page 9 Manual Documentation Number MESR9xx-0712m

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Fiber Optic Connectors

Modbus gateway models using fiber optic network connections use either SC or ST

connectors, depending on the specific model.

Figure 7. SC and ST Fiber Optic Cable Connectors

Serial Port Connectors

MESR9xx Modbus Gateways use four serial port connector configurations, depending on

the model:

MESR901-x Modbus Gateways feature one serial port and use a DB-9M

connector for RS-232 and a five-position removeable terminal block for RS-422

and RS-485 connections.

MESR902T-x Modbus Gateways feature two serial ports, both using five-position

removable terminal blocks for RS-232, RS-422 and RS-485 connections.

MESR921-x Modbus Gateways feature one serial port and use a DB-9M

connector for RS-232 and a five-position removeable terminal block for RS-422

and RS-485 connections.

MESR922T-x Modbus Gateways feature two serial ports, both using five-position

removable terminal blocks for RS-232, RS-422 and RS-485 connections.

Figure 8. DB-9 Female Serial Port Connector

Figure 9. Five-Position Pluggable Terminal Block

Note: Refer to Appendix D for connection pin-outs.

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B&B Electronics MESR901 Specifications Page 13