COM 3 Port 9300 Series User’s Guide
Page 150 Chapter 7 - Hardware Reference
COM 3 Port

COM 3 is reserved for the optical (infrared) port.

Infrared Connection

Specifications for the optical port are as follows:

1No physical connection is required to use the infrared port. Any device with an IRDA-compliant port
that is positioned within the operating distance and optical range specified above can receive data.
Ethernet Port

10Base-T Ethernet connections are made via the RJ45 modular port on the left side

of the unit.

Specifications for the Ethernet ports are as follows:

1 The unit ID for Modbus RTU and Modbus/TCP over Ethernet is 100.
Specification Value
Baud Rate Up to 19,200 bps (default is 9,600 bps)
Duplex Half
Operating Distance less than 1 meter (3 feet) 1
Optical Range ±15° (minimum), ±30° (maximum)
Supported Protocols ION, Modbus RTU, DNP 3.0, FACTORY (default is ION)
Compatibility ANSI C12.13 Type II magnetic optical communications coupler
Specification Description
Cable Type High quality Category 3 or 5 UTP (CAT 5 unshielded twisted pair
recommended) cable
Cable Ends Male RJ45 modular connector for connection to the 10Base-T port
Specification Value
Type (10 Base-T) IEEE 802.3 10Base-T for 10 Mbps base band CSMA/CD LANs
Data Rate 10 Mbps
Supported Protocols ION, Modbus RTU 1, Modbus/TCP 1
Isolation Transformer isolated to 1,500 VAC RMS
Pin 1: Transmit Data +
Pin 2: Transmit Data -
Pin 3: Receive Data +
Pin 6: Receive Data -
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RJ45