ELPRO 905U-L Installation Manual page 12

The front panel contains the following components:
The LEDs on the front panel indicate the unit status:
LED Status
None
OK LED Green
OK LED Red
RX Led Flashes
CF Led ON
PG LED on
Output LED ON
LEDs with RSSI Push
Button Pressed
Output LED flashing
quickly
905U-L Wireless I/O
Version 1.9
SMA antenna connector
at top of unit
RS232 configuration
port
RSSI push-button
Indicates
No power supply.
Current status of the unit OK.
Fault condition detected in unit.
Receiving Message.
Module Communication Failure Output is active.
Configuration Cable Connected.
The Output LEDS (i.e. D1, D2, D3) light when the corresponding output is active.
D1 Relay output D1 is ON (Contact Closed).
D2 Relay Output D2 is ON.
D3 Relay Output D3 is ON.
When you press the RSSI push button, the unit shows the signal strength by lighting
the LEDs from the bottom to the top. Signal strength is the strength of the last
message received that was addressed to this station.
LED Signal Strength
D1 More than -85 dBm
D2 More than -90 dBm
D3 More than -95 dBm
If an output is in communication failure, the corresponding LED flashes at 5 Hz.
D1 Relay Output D1 is in communication failure.
D2 Relay Output D2 is in communication failure.
D3 Relay Output D3 is in communication failure.
PG Analog output is in communications failure.
905U-L Wireless I/O Installation Manual
LED Signal Strength
RX More than -100 dBm
CF More than -105 dBm
PG Always on during RSSI test
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