Aiphone KB-3MRD - Operations; Door Call-In Procedure; Direct Voice Calling

3 INSTALLATION-
Cable Specify for wiring to both door and inside stations.
1. O.65mm0 to 1.2mnn0 (22AWG to 16AWG).
2. PE (polyethylene) insulation & Vinyl-sheathed cable.
Attenuation of less than - 6.5dB at 10MHz./100m, 330' length.
3. Solid core conductor. (Note: Do not use stranded wire on this system.)
4. Line impedance : ± 75Q (less than 100Q at the highest).
For other types, normal operation or max. communication distance cannot be guaranteed.
Wiring
1. Use a parallel cable to connect video door station. Do not use any other cable
like coax-cable, individual wires, etc.
2. When existing chime wires are used, be sure to locate and disconnect the AC
transformer. When system does not function properly, install new cable as
specified.
3. If unused wires exist in the cable, terminate each extra pair with a 120Q
resistor at each end of wires (on audio sub station end as well). Extra wires can
interfere with video signal.
4. Keep audio/video wires more than 30cm(1') away from AC 100-240V power
lines. It will cause noise in communication & malfunction.
5. Run internal wiring of audio/video system in such a manner that the cable is
run from master to sub without any splices, which will create inferior video
quality.
YES
PARALLEL WIRE
1200
[M
[Mi —^
KB-DAR
or KB-3MRD
NEVER
COAXIAL CABLE
UNUSED WIRES
1200
_]/—[Mi
YES
Wire monitor to monitor
KB-DAR KB-3MRD KB-3HRD KB-3HRD
NEVER
Homerun to master
KB-3HRD
DO NOT include in & out wires in
the same jacketed cable.
KB-3HRD
NOTE: The above wiring methods also apply to KB-3SD audio sub station.
Power supply requirements
METHOD 1
100m w/1.Omm0
330'w/18AWG
KB-3MRD KB-3HRD KB-3HRD KB-3HRD KB-3HRD
METHOD 2
I lOOmw/I.Ommo .
' 330'w/18AWG '
I_50m w/1 .Ommo_i
' 165'W/18AWG
KB-3MRD KB-3HRD KB-3HRD KB-3HRD KB-3HRD
A Use a specified
A Do not connect
power supply to secure proper operations of system.
power supplies in parallel.
NEVER
Compatibility
Description
Compatible
Not compatible
Video door station
Sub station w/monitor
Audio sub station
KB-DAR
KB-3HRD
KB-3SD
KC-DAR, KA-DAR, others
KC-1HRD
KC-1SD, IEH-1CD, others
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