18
Emergency Command Center Manual —
P/N LS10001-000FL-E:D 9/3/2014
Product Description
Input/Output Circuit Specifications
1.2.2 Display Board
External Audio Input - TB5, Terminals 1(-), 2 (+)
Input Impedance: 8.5K
, nominal @ 1 KHz
Input Voltage: 700 mV
RMS
maximum
Input Current: 0.1 mA, maximum @ 700 mV
Background Music Input Voltage (Non-Canadian applications): 225mV
RMS
,
maximum
TB20
TB19
TB17
TB23
TB24
TB20
TB17
TB24
Primary 50W
Speaker Circuit
10W max. = 0.66
amps from supply
NAC Circuit
2.0 amps max.
Aux. Power
0.5 amp max.
Speaker Volume
Control Override
0.25 amp max.
External Operator
Interface Power
0.8 amp max.
Standby
2.0 amps max.
(includes
background
music).
Alarm
7.5 amps
max.
Figure 1.3 Current Availability - 50 Watt System
Primary 50W
Speaker Circuit
10W max. = 0.66
amps from supply
Aux. Power
0.5 amp max.
External Operator
Interface Power
0.8 amp max.
NOTE:
Some laptops/personal computers only provide an audio output for headphones. It may
be necessary to adjust the headphone output level for proper recording of voice messages.
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