LEDs - Facility Explorer - Part No. 24-10143-918 - Field Device

RS-485 Option Module Installation Instructions

Brand
Facility Explorer
Document type
Installation Guide
Document number
Part No. 24-10143-918
Document revision
A
Revision date
2019-03-22
Language
English

Five LEDs are on the front of the RS-485 option module.

Figure 1. LEDs on RS-485 Option Module

Table 1. LEDs

Callout

Description

1

Upper

COMn (for example, COM3)

TX (Transmit) and RX (Receive)

2

Lower

COMn + 1 (for example, COM4)

TX (Transmit) and RX (Receive)

3

PWR - green, remains lit while controller is powered

The LED pair RX and TX operate as follows:

  • TX (yellow) — Transmit, flashes when the controller is sending data to a device connected on the RS-485 trunk.
  • RX (green) — Receive, flashes when the controller is receiving data from a device on the RS-485 trunk.

LEDs are also visible when the front access door is opened.

Note: No additional features are behind the front access door of an RS-485 option module.