9
Installation and Maintenance Manual
Model 300MB-SD CommCenter Series D1
Table 3 Product specifications
Power Input
Input Voltage
120/240 Vac, 50 Hz to 60 Hz; 24 Vdc
Standby Current
50 mA, 120 Vac
25 mA, 240 Vac
Operating Current
210 mA (max.)
Power Consumption
26 W (max.)
Emergency Power Source Input
Input Voltage
22 Vdc to 32 Vdc
Standby Current
90 mA
Operating Current
760 mA
Audio/Cascade Input
Input Impedance
5 k
Ω
Input Voltage
1 Vpp (max.)
Audio Outputs
Output Impedance
Unbalanced Signal Line
25
Ω
(max.)
Unbalanced Signal Line, Standby
120
Ω
Balanced Signal Line
40
Ω
(max.)
Low-Level Signal Line
600
Ω
Output Voltage Levels, No Load (< 3% THD)
Unbalanced Signal Line
9 Vrms
Balanced Signal Line
17 Vrms
Low-Level Signal Line
1 Vpp
Output Voltage Levels, Max. Load (< 3% THD)
Unbalanced Signal Line
8 Vrms (25
Ω
load)
Balanced Signal Line
15 Vrms (40
Ω
load)
Low-Level Signal Line
1 Vpp (600
Ω
load)
Tone Output Voltage Levels, No Load (sq. wave)
Unbalanced Signal Line
12 Vrms
Balanced Signal Line
25 Vrms
Low-Level Signal Line
1 Vpp
Tone Output Levels Max. Load (sq. wave)
Unbalanced Signal Line
12 Vrms (25
Ω
load)
Balanced Signal Line
20 Vrms (40
Ω
load
Low-Level Signal Line
0.56 Vrms (600
Ω
load)
Signal to Noise Ratio (< 1.5 % THD)