ES Net Audio Controller Card specifications
The ES Net Digital Audio Controller uses 24 V card power for riser amps and for microphone supervision. All card logic and low-level analog circuitry is
powered by the on-board buck regulator.
The following specifications apply to the ES Net Digital Audio Controller Card:
• Minimum input voltage: 19 VDC
• Maximum input voltage: 33 VDC
• Maximum ripple: 1 VRMS at 120 Hz
Table 2: Digital current draw
Specification At 24 VDC Maximum over range
Current draw (quiescent of PCA, no conditions below) 125 mA 140 mA
Additional current draw factors (add to above number for total card current draw)
Local speaker on - silence 40 mA 40 mA
Local speaker on - min volume (horn tone, 500 Hz square wave) 60 mA 60 mA
Local speaker on - half volume (horn tone, 500 Hz square wave) 160 mA 160 mA
Local speaker on - full volume (horn tone, 500 Hz square wave) 250 mA 250 mA
Local microphone enabled 10 mA 12 mA
Remote microphone enabled 20 mA 25 mA
Fire fighter phone on 0 mA 0 mA
Note:
• The equipment operates normally with ambient temperatures outside the cabinet from 32°F to 120°F (0°C to 49°C), inclusive.
• The equipment operates normally under non-condensing humidity conditions up to 93% relative humidity at 90°F (32°C).
page 4 579-1408 Rev. B
ES Net Digital Audio Controller Installation Instructions
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