STI UB-2 - Manual (Page 6)

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ATTACH POWER FOR LED (IF DESIRED)
(See drawing)
NOTE
LED connection: The polarity shown is factory installed. LED is
polarity sensitive. If LED does not light, switch positive and negative
wiring or remove LED and rotate 180°. 24 volt is included and will
operate on 12 volts; however not as bright. 12 volt LED’s are also
available.
4
TO SUPERVISED STATION
OR AUXILLARY DEVICE
SW1
SW2
NC
COM
NO
NC
COM
NO
MAG LOCK
MESSAGE LENS PCB
12–24VDC
BUTTON LED
NORMAL POSITION BUTTON ACTIVATED
MAGNETIC LOCK
BUTTON LAMP
MESSAGE LAMP
ON
ON
OFF
OFF
OFF
ON
NO
NC
COM
LED –
LED +
SW
IT
CH
1
SW
IT
CH
2