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Chapter 2: Description
65-2662XL-04 M2A-XL Transmitter
Status LEDs
The M2A-XL includes five status LEDs that are located above the display (see Figure 5).
• Fail LED
The fail LED turns on when the M2A-XL is experiencing a fail condition. A fail condition
can be caused by a detector failure or low detector signal.
• Alarm 1 LED
The alarm 1 LED is on when the M2A-XL is experiencing an alarm 1 condition.
• Alarm 2 LED
The alarm 2 LED is on when the M2A-XL is experiencing an alarm 2 condition.
• RX & TX LED’s
These LED’s indicate data being received (RX) and transmitted (TX) when the M2A-XL’s
Modbus output is operating.