User`s guide
12-2
J3 Connector Definitions: J3-1: Circuit common.
J3-2: +5.86 volts dc.
J3-3: Circuit common.
J3-4: +5.86 volts dc.
J3-5: Circuit common.
J3-6: AC power alarm signal.
J1 Connector Definitions: J1-1: Circuit common.
J1-2: Keyed position to prevent insertion reversal.
J1-3: No circuit connection.
J1-4: B+ input for backup battery (3.6 volt input).
TB1 Connector Definitions: TB1-1: AC power connection.
TB1-2: AC power connection.
TB1-3: Earth ground.
GUTC Board Specifications
Board dimensions: 4.34 x 3.55 inches (11.0 x 9.0 cm)
Input Voltage Range: 3.0 to 6.0 volts DC.
Current consumption, sleep mode: 50uA max. at 5.0 volts.
Current consumption, awake: 3mA max. at 5.0 volts with radio off.
350mA average at 5.0 volts with radio on. Peak
currents can as high as 1.8 amps for a duration of
0.5 milliseconds every 4.5 milliseconds.
Operating temperature range: -22° to +140° Fahrenheit (-30° to +60° Celsius)
Processor: MSP430F149 (Texas Instruments)
External EEPROM memory: 64K byte.
LED indicators: one red, one green.
Input jumpers: JP2, 8 positions.
Alarm inputs: J11, J12.
Serial Port: Output levels on TX, DCD and DSR: ±5.5V max.
Input levels on RX and DTR: ±15V max.
Baud rate: 300 to 56400 (user-selectable)
Firmware (g18): 100173
Firmware (g20): 100219
Cellular Radio Specifications
Cellular Radio (g18): Motorola Model g18 Tri-Band GSM GPRS
FCC ID# IHDT6AC1
Metretek Stock Number 1015-0184-001
Cellular Radio (g20): Motorola Model g20 Dual-Band GSM GPRS
FCC ID# IHDT56DB1
Metretek Stock Number 1015-0199-001 (850 / 1900 MHz)
Metretek Stock Number 1015-0201-001 (900 / 1800 MHz)