STC Smartscan NG2, Manual

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EUD-2018086-00 Rev.3, SmartScanNG² User's Guide for Wayside Enclosure Components, 14 May 2021
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Potentiometer R19
Potentiometer R19 adjusts the incoming touchtone volume. It is set at the factory and should
not be changed by the customer.
Potentiometer R34
Potentiometer R34 adjusts the audio level (modulation) going to the radio. A misadjusted level
will be distorted or very weak sounding. This adjustment is set at the factory to FCC
specifications. Turn R34 clockwise to increase the audio level. Turn it counterclockwise to
decrease the audio level.
LED 6
The Interface board (2300-110) has a red LED labeled LED6 . This LED lights when the self-
restoring fuse F1 opens due to an overcurrent condition on the +12-VDC supply voltage input.
LED 7
The Interface board (2300-110) has a red LED labeled Valid DTMF (also labeled LED7 ). If
R19 is adjusted properly, this LED lights as valid touchtones are received from the radio.
LED 8
The Interface board (2300-110) has a red LED labeled LED8 . This LED lights when the
dragger (aka dragging-equipment detector) input activates.
LED 9
The Interface board (2300-110) has a red LED labeled LED9 . This LED lights when the high-
load input activates.
LED 10
The Interface board (2300-110) has a red LED labeled LED10 . This LED lights when the
wide-load-1 input activates.
LED 11
The Interface board (2300-110) has a red LED labeled LED11 . This LED lights when the
wide-load-2 input activates.