Chapter 6 Installing the EX2 expansion module

Interpreting EX2 LEDs

The information in this section will help you interpret LED activity on the EX2 expansion module. Figure 52 shows the location of each LED.

Figure 52. LED locations on the EX2

Binary output LEDs

Status LED

TX and RX communications LEDs

Binary output LEDs

The LEDs labeled LD2 through LD5 indicate the status of the four binary outputs. Table 24 describes binary output LED activity.

Note:

Each binary output LED reflects the status of the output relay on the circuit board. It may or may not reflect the status of the equipment the binary output is controlling. Field wiring determines whether the state of the binary output LED also applies to the status of the end device. Table 24 describes the LED states.

Table 24. Binary output LEDs

LED activity

Explanation

 

 

LED is on continuously

The relay output is energized.

 

 

LED is off continuously

The relay output is de-energized or there is no

 

power to the board.

 

 

96

BAS-APG001-EN

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Trane BAS-APG001-EN, Engineered Smoke Control System for Tracer Summit Interpreting EX2 LEDs, LED locations on the EX2

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