Installation
MS-9050UD PN 52413:C 01/23/08 47
2.7 Digital Communicator
Two independent telephone lines can be connected to the control panel. Telephone line control/
command is made possible via double line seizure as well as usage of an RJ31X style interconnec-
tion. Note that it is critical that the panel's digital communicator be located as the first device on
the incoming telephone circuit to properly function.
Important! The DACT must not be used to dial a phone number that is call-forwarded per require-
ments of UL 864 9th Edition.
The control panel's digital communicator is built into the main circuit board. Connection and wir-
ing of two phone lines is required as shown below.
Figure 2.8 DACT Installation
Customer Premises Equipment and Wiring
Telephone
Line
MS-9050UD
Network
Service
Provider’s
Facilities
Network
Demarcation
Point
RJ31X
Jack
Unused
RJ-11 Jack
Unused
RJ-11 Jack
Telephone
Telephone
Telephone
Answering
System
Fax Machine
Computer
9050ACTAdact.cdr
Figure 2.9 Wiring Phone Jacks
9050udjack.cdr
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