36 MS-5UD & MS-10UD Series Manual — P/N 52626:C2  1/24/2012
Installation Digital Communicator
2.6  Digital Communicator
Two independent telephone lines can be connected to the control panel.  Telephone line con-
trol/command is made possible via double line seizure as well as usage of an RJ31X style intercon-
nection.  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.
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 2.12  DACT Installation
Customer Premises Equipment and Wiring
Telephone 
Line
FACP with DACT
Network 
Service 
Provider’s 
Facilities
Network 
Demarcation 
Point
RJ31X
Jack
Unused
RJ-11 Jack
Unused
J-11 Jack
Telephone
Telephone
Telephone
Answering 
System
Fax Machine
Computer
9050ACTAdact.wmf
Figure 2.13  Wiring Phone Jacks
10UDJACK2.wmf
RJ31X
Jack
RJ31X
Jack
(Secondary Lines)
Incoming Telco 
phone lines
(Primary Lines)
Incoming Telco 
phone lines
Ring
Ring
Ring
Tip
Tip
Tip
Green Wire
Red Wire
to premise phones
Ring
Tip
Green Wire
Red Wire
to premise phones
Note: Shorting bars 
inside RJ31X Jack 
removed during 
male plug insertion
7 foot cable
MCBL-7
(ordered separately)
Primary 
phone line 
PH-1
Secondary 
phone line PH-2
Modular female 
connectors
Male plug 
connectors
Primary 
phone line 
active LED
Secondary 
phone line 
active LED