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The front panel contains the following components:
SMA antenna connector
at top of unit
RS232 configuration
port
Rotary switch for set-point
settings
The triangle on the rotary switch indicates the current position, for example:
Position 0
NOTE: To avoid damaging the rotary switch, use a screwdriver to change the position.
The rotary switch controls the setpoint levels on the Analog and Thermocouple inputs.
The LEDs on the front panel indicate the unit status:
LED Status
None
OK LED Green
OK LED Red
TX Led Flashes
PG LED on
Input LED ON
All LEDs medium flash
905U-L Wireless I/O
Version 1.9
Position 1
Indicates
No power supply.
Current status of the unit OK.
Fault condition detected in unit.
Transmitting Message.
Configuration Cable Connected.
Input LEDS (i.e. D1, D2, SP, AZ.) light when the corresponding input is active.
D1
Digital Input 1 is active (Low).
D2
Digital Input 2 is active.
SP
Analog Setpoint is active.
AZ
Analog Input is zero mA
Medium speed flash (1.6HZ) indicates the module is halfway through the
configuration process. Medium flash also happens when you set the rotary switch
to position 0 when powering on the unit.
905U-L Wireless I/O Installation Manual
Page 10 of 40
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