B&B Electronics MESR321_SL_ML - Manual - Manual (Page 9)

Hardware Vlinx MESR321 Modbus Gateway
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MESR321-xx_R001_2113m
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Note: Refer to Section 3: Modbus Gateway Setup and Connections for more
information on using the Mode switch.
Ethernet Connector
Modbus gateway models using 10BaseT/100BaseTX network connections use
an RJ45 receptacle. The Modbus gateway is connected to a standard Ethernet
network drop using a straight-through RJ45 (male) Ethernet cable.
Figure 3. Ethernet Connectors. E2 is pass-through.
Note: Refer to Appendix D for connection pin-outs.
Fiber Optic Connectors
MESR321 family serial servers use LC fiber connectors.
Serial Port Connectors
MESR321 family serial servers feature one DB9M connector for RS-232 and a
five-position removable terminal block for RS-422 and RS-485 connections.