GAI-Tronics 473-002 Centra-Page Outdoor Wall Station - Manual (Page 2)

Pub. 42004-214C
Model 473-002 Centra-Page Outdoor Wall Station Page: 2 of 7
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The Model 473-002 Station, like other Centra-Page stations, operates in conjunction with a plug-in Line
Card PCBA housed in the central cabinet card rack assembly. The line cards are sold separately. The
card contains the handset dc power source, dual-switching relays, and a 16-watt speaker amplifier with
8-ohm and 70-volt line outputs.
If installing this station as an add-on, please consult the following chart to ensure proper power is
supplied.
Power Supply Current Requirements in Amps
Mode 10 Cards 20 Cards 30 Cards
Standby 0.8 1.5 2.3
Page (Full load) 5.7 11.4 17.1
Alarm (Typical) 3.8 7.5 11.3
Alarm (Max. Level) 12.5 25.0 37.5
N OTES :
1. Ratings at 27.0 V dc at central cabinet. Add 8% for page and alarm at 28.8 V dc.
2. Full load is defined as 15-watt load on all cards with levels as adjusted at factory; 2-watt alarm
output.
3. Typical load is defined as 7.5-watt load (such as 16-ohm loudspeaker connected to 8-ohm output).
4. Max. level is defined as 15-watt loads and level control adjusted for 15-watt alarm level on all cards.
5. Ratings for alarm based on continuous tones. Pulse tone reduces current to about 60%.