Alpha Communications DUO-COM SM222K Petunjuk Instalasi - Halaman 2

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Figure 4: Typical Wiring for two Indoor Master Stations

NOTE: The audio, door opener and power supply cables must

be in separate jackets and not in the same cable jacket.

Use #18 wire for door release and power supply wiring.

WIRING INSTRUCTIONS

Run two-conductor twisted #22 (max 350' or 105m)

or #20 (max 500' or 150m) cable between the re-

mote station and the master station locations. If the

cable runs near any AC wires, please make sure this

wire run uses shielded cabling.

Run two-conductor #18 cable between the master

station and the power supply locations.

Run two-conductor #18 cable between the master

station and the door strike locations. Make sure to

leave suﬃ cient cable at each end to make connec-

tions (approximately 10" or 25cm).

Note: If

door release functionality from the mas-

ter station is not required for your application, the

'DOOR' button may be utilized for other signaling

purposes. Run the door release cable to the optional

signaling device (bell, buzzer, etc.) which must be

able to operate on 12VDC (or 16VAC if the master is

OPERATION AND CHECK-OUT INSTRUCTIONS

At Outdoor Remote Station

•

Push button to call master, release to listen.

At Indoor Master Station(s)

•

Push 'TALK' button to speak, release to listen.

•

Push 'DOOR' button to release door.

•

Push 'OFF' button to silence speaker. Station will re-

main in monitor mode if 'OFF' button is not pressed.

•

Press 'TALK' button to re-activate speaker

•

Adjust volume with small screwdriver as needed

through small opening in front of master station.

NOTE: Distortion, howling or feedback may result

if volume is too high.

Auto-Listen Mode

•

By default, the Indoor Master Stations are set to be in

Auto-Listen Mode. In order to turn oﬀ Auto Listen Mode

gently remove the small plastic jumper on the rear of

the unit marked J7. This will cause the station(s) to go

into listen mode when a call is placed only after ﬁ rst

having pressed the 'TALK' button.