20 of 3
”6” – to pull on means that “6 – Paging Start Key” is operating in a common mode, and to pull off means that
“6 – Paging Start Key” is operating in a PTT mode, namely, it shall be always held down for a paging;
”7” – Control whether it is a group or a separate partition corresponding by one key in MIC “4 – Partition
Selection Key”. To pull on indicates that it corresponds to one separate partition, and to pull off indicates that it
corresponds to one group (including all partitions in the system).
“8” – MIC panel “LED” light test (please remain the PULL-ON if it is normal). When the PULL-OFF is
detected, all LED lights on the panel will automatically restore to their normal display states after lighting in an
order of Red
→
Green
→
Yellow. It is used mainly to test whether the display of LED lights is normal or not.
1.5. Technical Specification
Electrical Indicators
Phantom Power Supply
Voltage: 20V ~ 27.5V
Max. Current:
<
0.1A (24Vpower supply, lighting of all panel LED lights, in a paging
state)
Power Consumption:
<
2.4W
Performance Indicators
Line Input
Sensitivity: 775mV
Impedance:
10kΩ
SNR: >70dB
Microphone
Sensitivity: 5mV
Impedance:
600Ω
Mechanical Indicators
Size (Length x Width x Height): 240* 140 * 55 mm
Net Weight: 1kg or so
Installation: Desktop
Color: Black
Environment Requirements
Operating Temperature: +5
℃ ~ +40℃
Storage Temperature: -20
℃ ~ +70℃
Relative Humidity: <95% (No condensation)
