Gai-tronics DHF-102 Digital Intercom Staitons Manuale Utente Scaricare il pdf (Pagina 6)

Pub.: 42004-383D

ODEL DHS/DHF SERIES DIGITAL INTERCOM STATIONS Page 4 of 24

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Description of Major Components

The Digital Intercom Stations are made up of a front panel assembly and a rear enclosure.

The following assemblies are mounted on the interior side of the front panel:

• 69539-00X Audio/Interface PCB Assembly.

• 69547-00X Intercom PCB Assembly

Refer to Figure 5 below. The front panel contains the user interface components (microphone, speaker,

status LED, keypad, and handset) in addition to the 69539-00x Audio/Interface PCBA that provides all

terminations except earth ground. This PCBA also contains controls for volume, gain, and switch

configuration.

The 69547-00x Intercom PCBA connects to the Audio Interface PCBA from below to transmit/receive

audio, data, and control information to and from the central control cabinet. The rear enclosure protects

the electronics from the harsh environment, and also contains the termination for earth ground.

Figure 5. Front Panel Assembly with Intercom and Audio Interface PCBAs

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Gai-tronics DHF-102 Digital Intercom Staitons Manuale Utente Pagina 6