20
Connection
Caution:
• ONLY CONNECT WJ-GXE500 TO 12 V DC CLASS 2 POWER SUPPLY.
Before starting the connection, turn off the power of this unit and connected devices.
Before start the connection, prepare the required devices and cables.
z
Connect the coaxial cables to the video input connectors on the rear of the unit. Set the termi-
nation (75 Ω) on or off with the set switches as necessary.
Video input connectors 1 to 4 are associated with Ch 1 to 4.
4 3 2 1
RS-485
SIGNAL
GND
12V IN
2
1
4
3
VIDEO IN
MIC/LINE
IN
SET SW
AUDIO
OUT
EXT I/O
Connected to cameras
or other devices
x
Connect the microphone to the microphone/line input connector (for use of the audio reception
function).
Input impedance:
Approx. 2 kΩ
Recommended cable length: 1 m {3.3'} or less (for microphone input)
10 m {32.81'} or less (for line input)
Recommended microphone: Plug-in power type microphone (option)
Connect a monaural mini plug (ø3.5 mm).
• Supply voltage:
2.5 V±0.5 V
• Recommended sensitivity of microphone: −48 dB ±3 dB (0 dB=1 V/Pa,1 kHz)
Important:
• Connect/disconnect the audio cables and turn on the power of the unit after turning off the
power of the audio output devices. Otherwise, loud noise may come out from the speaker.
c
Connect an external speaker with the amplifier to the audio output connector (for use of the
audio transmission function).
Connect a stereo mini plug (ø3.5 mm) (monaural output).
• Recommended cable length: Less than 10 m {32.81'}
