Figure 11-2 Eas2 Block Diagram - Motorola iDEN Site Controller System Manual

Chapter 11 Gen 2 Environmental Alarm System
EAS2 Functional Description
IEEE1284
PORT1
IEEE1284
PORT2
10MHz OSC
RESET
CONTROLLER
SERIAL
EEPROM
(XC17S20XL)

Figure 11-2 EAS2 Block Diagram

11-4
The Site Controller and EAS2 interact in a master/slave relationship. The
Site Controller sends commands to the EAS2 to determine the status of
alarm inputs or set the state of control outputs. The EAS2, in turn, sends
alarm status responses to the Site Controller.
The EAS2 continuously scans the status of the alarm inputs, ensuring that all
alarms are consistently monitored.
17
FPGA
(XCS20XL)
17
56 INPUTS
20 OUTPUTS
16 BI
4 INPUTS
92 TOTAL I/O
5 OUTPUTS
8 BI
3
LED's (ON POWER SUPPLY)
8
RELAYS
(8X)
48
OPTO-
ISOLATORS
(48X)
-48V
A/D
OPTO-
ISOLATORS CONVERTER
+3.3 VDC
DC-DC
CONVERTER
Gen 3 Site Controller System Manual
8
RELAYS
48
ALARM INPUTS
BATTERY
-48 VDC FROM
BATTERY
CONNECTOR
TEBTS029_2
010802JNM
68P80801E30-A 5/1/2002