4-3

Standard System (2) Homerun Wiring

[1] 4-way video junction unit GH-4Z

For the terminating GH-4Z (maximum of 6 units per trunk), set the setting switch to "A".

[2] Residential station GH-1KD, GH-1AD, GH-1MD

For GH-1KD and GH-1AD, set the setting switch to "A". [3] Short lead

To use the emergency alarm switch (see 11-7 for details), disconnect the short lead and connect the switch.

[4]External relay GH-RY For details, see 4-5.

[5]Doorbell button

Do not mix homerun wiring with station-to-station wiring on the same trunk line.

NP:Non-polarized

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Image 21
Aiphone GH series operation manual Standard System 2 Homerun Wiring, NPNon-polarized