11
4.8 Telephone Dialer
The Protégé® SE Integrated System Controller provides the ability to communicate alarms and
upload/download information with remote systems using the onboard 2400bps modem. The
telephone line can be connected directly to the Protégé® SE Integrated System Controller using the
onboard telephone connection terminals.
Figure 11 - Telephone Line Connection
!
It is recommended that the earth connection for the telephone and main power
supply
(refer to the section Earth Ground Connection on page 5)
earth be run
separately and should be terminated on the cold water pipe or similar grounding
point within the installation.
R1
i
T1
i
T1o
R1
o
Telco line �p and ring input
Telco line out
Cold water earth pipe
