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3.1
City circuit card specifications
Electrical specifications
Input voltage
20 VDC to 32 VDC at 37 mA max.
Current
20 mA at 24 VDC, nominal
36 mA at 24 VDC, both relays on
City output voltage
± 24 V nominal (20 to 32 VDC) fused at 3 A
Environmental specifications
Operating temperature
32°F to 120°F (0°C to 49°C)
Humidity
10% to 93% non-condensing at 90°F (32°C)
page 6
2050 and 2250 Foundation Series Fire Alarm Control Unit City Circuit Card Installation Guide
Table 1: City circuit card specifications
579-1420 Rev A
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