NEMA SMU-12/16 Features and Specifications

Flash Time adjustable from 1 to 16 seconds
RESET keypad prevents defeating signal monitor operation if RESET is taped down
Conflicting Green, Yellow, or Walk on any two or more non-compatible channels
Microprocessor based design
Real Time Clock
Internal Watch Dog flash transfer hardware circuit
Three Event Logs, each of 100 records, retained through power failure
Enhanced Monitoring
Displaying permissive programming on front panel display and Personal/Laptop Computer
4 line x 20 character back-lit extended temerature range LCD display for clear display of information

SIZE	4.5" wide x 10.5" high x 9.1" deep.
POWER REQUIREMENTS	89 to 135 volts ac. 60 +/- 3 Hertz 1 Amp SLO-BLO fusing
TEMPERATURE	-34°C to +74°C Operating -40°C to +85°C Storage
CHANNELS MONITORED	12 Channels with 4 inputs / channel (Green, Yellow, Walk, Red / Don't Walk). 16 Load Sensing Switch positions with 2 inputs / channel (input/output status, current). 2 Malfunction Response Module positions with 2 inputs / channel (output status, current).
MONITORED SIGNALS	+24 Volt dc. (24VI and 24 VII) 48 ac field wire voltages (both polarities of sinusoid are monitored independent of one another). 36 Load Management System voltages.
DISPLAYED INFORMATION	All active channels on 4 line x 20 character LCD.

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