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インターホン・システム Dahua KTA02のPDF クイック・スタート・マニュアルをオンラインで閲覧またはダウンロードできます。Dahua KTA02 18 ページ。 Analog 4-wire video intercom

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Dahua KTA02 クイック・スタート・マニュアル
Port C of an indoor monitor cannot be connected to Port B or D of another indoor monitor
to do data communication.

3.1.2 Cord Specification

Depending on the distance between the door station and indoor monitor, you need to select
RVV4 cords of different specifications.
Transmission Distance (TD)
TD ≤ 10 m
10 m < TD ≤ 30 m
30 m < TD ≤ 50 m
If the distance between the door station and indoor monitor is more than 50 m, please use
coaxial cables.
Do not pull the cords violently.
During wiring, wrap the cord joints with insulated rubber tape to prevent short circuit.

Wiring One Door Station and One Indoor Monitor

Table 3-1 Cord specification
RVV4 Cord Specification
RVV4 × 0.3 mm²
RVV4 × 0.5 mm²
RVV4 × 0.75 mm²
Wiring (1)
7