Aiphone MYH-2CD User Manual download pdf (Page 3)

2 NAMES & FEATURES

MY-2CD, MYH-2CD

Video monitor (4" CRT)

Door release button

Door call-in LED

ROOM call button

PanTilt control pad

BACKLIGHT control button

MONITOR button

Chime/pre-tone volume control (TONE)

Brightness control (BRIGHT)

Contrast control (CONTRAST)

A-B switch (SW1)

RESET switch

FEATURES

• Multiple PanTilt door & monitor system with a variety of configurations.

• Max. 3 inside monitor stations. Audio-only sub station(s) in place of sub station(s) w/monitor.

• Max. 2 PanTilt door stations.

• Optional audio door station.

• Monitor audio & video handsfree.

• All call type internal calling and communication.

• Door release button. Selective door release control with RY-3DL adaptor.

3 INSTALLATION

--------------------------------------------------------

/i\ Precautions on wiring

1. Use parallel conductor cable to connect video door station. Do not use any other

cable like coax cable, individual wires, shielded wire, or twisted pair.

2. When existing chime wires are used, be sure to locate and disconnect the AC

transformer.

3. If unused wires exist in the cable, terminate each extra pair with a 120 Ohm

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 AC100~240V power lines.

It will cause noise in communication and possible 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

Wire monitor to monitor

(daisy-chain)

MK-DBC MY-2CD MYH-2CD MYH-2CD

NEVER

Homerun to master

YES

PARALLEL WIRE

NEVER

120 Ohm

COAXIAL CABLE

------^UNUSED WIRES

: 120 Ohm

Q-

(B2)|

MK-DBC

(or MY-2CD)

_y—QaT]

r—SMI

MY-2CD

(or MYH-2CD)

NEVER include incoming & outgoing wires

in the same jacketed cable.

MYH-2CD

MY-1HD

Note: The above wiring method also applies to MY-1 HD audio sub station.

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Aiphone MYH-2CD User Manual Page 3

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