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Concept

Concept


Products: Operator Display
Functionalities: Hardware
Product version: 3.3, 2022, 2023, 2024
7/22/2021

Operator Display Communication Ports

arrow1_rotationEthernet Ports arrow1_rotationUSB Ports arrow1_rotationRS-232C Port arrow1_rotationRS-485 Port

Operator Display provides the following combination of communication ports:

  • Two Ethernet ports

  • Two USB ports

  • One RS-232C port

  • One RS-485 port

Warning Warning

ELECTRIC SHOCK OR FIRE

  • Make a direct connection between the functional ground (FG) terminal and ground.

  • Do not connect other devices to ground through the functional ground (FG) terminal of this device.

  • Install all cables according to local codes and requirements. If local codes do not require grounding, follow a reliable guide such as the US National Electrical Code, Article 800.

Failure to follow these instructions can result in death or serious injury.

Notice

LOSS OF COMMUNICATION OR EQUIPMENT DAMAGE

  • Do not put excessive stress on the communication ports of any connection.

  • Securely attach communication cables to the panel wall or cabinet.

  • Use a RJ45 connector that has a functional locking tab.

Failure to follow these instructions can result in loss of communication or equipment damage.

Table: Operator Display Communication Ports

Side

Identification

Bottom

 
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A: Ethernet interface (ETH2) – Inactive

B: Ethernet interface (ETH1)

C: Serial interface (RJ-45, RS-485) (COM2) – Inactive

D: Serial interface (RS-232C) (COM1) – Inactive

Rear

 
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E: USB (Type A) interface (USB1)

F: USB (micro-B) interface (USB2) 

Ethernet Ports

The two Ethernet ports are labelled:

  • ETH1

  • ETH2

The two Ethernet ports are 10/100BASE-TX (RJ45) ports. They are used to connect Operator Display to the BACnet/IP network. ETH1 is the only port used; ETH2 is inactive.

Note:

Use only the SELV (Safety Extra-Low Voltage) circuit to connect the Ethernet ports.

For more information, see Communication Port Wiring .

USB Ports

The two USB ports are of different types:

  • USB host port (labelled USB-1)

  • USB device port (labelled USB-2)

The USB host port is a USB 2.0 type-A port, which is rated 2.5 W. This port is used to transfer data to and from Operator Display using a USB stick (FAT formatted).

The USB device port is a USB 2.0 mini-B port. This port is used as a temporary connection only during maintenance and setup of the device.

Note:

Use only the SELV (Safety Extra-Low Voltage) circuit to connect the USB ports.

For more information, see Communication Port Wiring .

RS-232C Port

The RS-232C port is a D-Sub 9-pin plug connector, and labelled as COM1. This port is inactive on Operator Display.

RS-485 Port

The RS-485 port is an RJ45 port (modular jack), and labelled as COM2. This port is inactive on Operator Display.

See Also

  • Hardware Overview
  • Operator Display
  • Communication Port Wiring