Installation guide

5
LEDs
Refer to Table 1 for DACT LED indicators.
Specifications
Refer to Table 2 for DACT electrical requirements and environmental limitations.
Table 1. LED Indications
LED Possible State
Power (LED 1)
Green LED
Not Illuminated. The system is not receiving DC power, or the
power-up self-test failed.
On Steady. The DACT is receiving DC power and is operational.
Flashing. DACT is dialing up (or attempting to dial up) the central
station.
Communication
Trouble (LED 2)
Yellow LED
Not Illuminated. No communication errors are being detected.
On Steady. DACT cannot communicate with the Central Station. All
dialing attempts have failed.
Single Flashes. DACT detects a line fault on phone line 1.
Double Flashes. DACT detects a line fault on phone line 2.
Alternating Flashes. DACT detects line faults on both phone lines
when LED alternates between single and double flashes.
Panel
Communication
Trouble (LED 3)
Yellow LED
Not Illuminated. DACT is communicating with the host panel.
On Steady. DACT cannot communicate with the host panel.
Fast Flashes. There is a version mismatch between the host
panel and the DACT.
Table 2. Specifications
Electrical Specifications
Voltage 19 - 33V dc, 2V p-p max. ripple at 120 Hz
Current Standby mode: 60 mA maximum
Report mode: 126 mA maximum
Programming mode: 45 mA maximum
Ground Isolation DC resistance between 0 V and earth ground must
exceed 1 Megohm
Environmental Specifications
Temperature
32
o
to 120
o
F (0
o
to 49
o
C)
Humidity
Up to 93% relative humidity at 90
o
F (32
o
C)
Introduction (continued)