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EA120B Alert Unit
Specifications
Electronics:
EA120B
Enclosures:
Indoor: AE1 (9"H x 7"W x 1.75"D)
Outdoor: AE101 (14.75"H x 12.75"W x 3.5" D)
Hardware Kits:
Indoor: H500
Outdoor: H121
Temperature Range -40° to + 149°F (-40° to +65°C)
Power
Battery Backup
Accessory Equipment: Horn/Strobe: E28000B
Compatibility:
EA500B ROM Version 4.00 or higher
General Information
The Alert Unit is a driver for output modules such as Security Escort's E28000B Horn/Strobe. The unit should be
mounted indoors; however, an outdoor enclosure is available. The Horn/Strobe should always be mounted
outdoors.
The Alert Unit gets its main power (for horn/strobe activation) from the 18 VAC transformer and its backup power
from a battery; however, the multiplex bus will continue to supply the Transponder information on status and
troubles in the event "local" power is lost.
Mounting
Normally, the enclosures are mounted first and all the wiring run, then the electronics are mounted, wired, and
tested.
The enclosures come with their own mounting hardware. The hardware kits listed above are for mounting the
circuit board to the enclosures (the indoor hardware kit also includes a tamper switch and a lock and key).
Mount the circuit board to the enclosure as indicated in the figures below.
18 VAC, 50 VA
12 VDC Lead Acid Battery
• Strobe: 500 mA solid state sink, terminal switches to ground in an alarm condition.
• Siren: 500 mA solid state sink, terminal switches to ground in an alarm condition.
• Power: 12 V @ 1A, max.
Transformer: TR1850
Batteries (3 Amp Hour): E28629B
(7 Amp Hour): E19729B
Battery Cables: C316 (3 or 7 Amp)
C315 (17 Amp)
C311 (3 or 7 Amp
expansion)
Security Escort Training
Page 37 of 142
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