Motorola iDEN Site Controller - Performance Specifications; Theory of Operation

68P80801E30-A 5/1/2002 10-3
Gen 3 Site Controller System Manual Chapter 10 Environmental Alarm System
EAS Functional Description
Performance Specifications
Table 10-2 lists the EAS specifications.
Theory of Operation
The EAS provides a direct interface between the Site Controller and various
site alarms. Figure 10-2 shows a functional block diagram of the EAS.
The EAS is configured for 48 dry contact input sensors and 8 relay closure
outputs. Each I/0 provides 4000V of isolation between field wiring and
sensitive control circuitry.
Table 10-2 EAS Performance Specifications
Specification Value or Range
Input supply voltage
range
-40 to 60 Vdc
Power consumption Typical: 40W
Maximum: 50W
Operating temperature
range
0º to 50º C (32º to 122º F)
Storage temperature
range
-40º to 85º C (-40º to 185º F)
Physical dimensions:
Height
Width
1 Rack Unit (RU)
482.6 mm (19")
Humidity 5% to 95% (non-condensing, non-operating)
0 to 90% (non-condensing, operating)
Maximum loop length 24 or 32 gauge wire => 610 m
(2000’)
Alarm input "ON"
current
5.0 mA min.
Alarm input "OFF"
current
0.1 mA max.