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Button/Indicator
No.
Light
Device status
1
indicators
Indicators of
2
power amplifier
status
Indicators of
3
speaker lines
Rear Panel
No.
Parts/Ports
1
Audio output of CH1
2
Audio output of CH2
3
Line in
4
Contact outputs
5
Contact inputs
Power amplifier
6
interface
Spare amplifier
7
interface
8
Address DIP switch
9
Mode switch
10
Calibration key
System extension
11
interface
12
Loudspeaker interface
External amplifier
13
interface
Description
To indicate the status of power supply, main power fault, backup
power fault, earth fault, CPU fault, network fault, open circuit and
short circuit of contact inputs.
To indicate fault of the connected power amplifiers.
To indicate the work status and fault status of 8 zones.
Description
To output the signal of channel 1, can be connected to external
power amplifier or third-party devices.
To output the signal of channel 2, can be connected to external
power amplifier or third-party devices.
Audio input interface, which is used to connect to external audio
devices, such as CD/DVD player, tuner, etc.
8 dry contact output interfaces which can be used to control the
external devices.
8 contact input interfaces which can be connected to third party
devices and used for business or voice alarm purpose.
Debug interface is used to upgrade the firmware.
To connect to the external power amplifiers of two audio
channels, transmit the audio signal, self-test signal to power
amplifier, and receive the fault status from power amplifier.
To connect to a spare amplifier, transmit the audio signal, self-
test signal to power amplifier, and receive the fault status from
power amplifier.
To set the device address for communication, the range is from
1~15.
To set the work mode.
It is reserved and unavailable.
To connect the RK-MCU or the other zone expander.
Speaker line interfaces of 8 zones, each zone has two speaker
lines (A&B).
Including the CH1A IN, CH1B IN, CH2A IN and CH2B IN.
12
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