att door phone controller 사용자 설명서

Figure 2-1. Door Phone Controller Back Panel Connections

1.

2.

3.

4.

Never install

Never install

telephone wiring during a lightning storm.

telephone jacks in wet

jack is specifically designed for wet

locations unless the

locations.

Never touch uninsulated telephone wires or terminals un-

less the telephone

network interface.

Use caution when

line has been disconnected at the

installing or modifying telephone lines.

2-8   Installation Procedures