Telephone Circuits
18
411UD Document #50759 Rev. E 12/09/2008 P/N 50759:E
2.5
Telephone Circuits
Provision to connect two independent telephone lines is available via two telephone jacks labeled PH1 (Primary)
and PH2 (Secondary). Telephone line control/command is possible via double line seizure as well as usage of an
RJ31X style interconnection. (RJ31X jacks must be ordered separately).
CAUTION: It is critical that the 411UD be located as the first device on the incoming telephone circuit to
properly function.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
RJ31X
JACK
RJ31X
JACK
J2
PH1
PH2
FIGURE 2-5:
Wiring Phone Jacks
To Premises Phone
Green Wire
Red Wire
Red Wire
Tip
Ring
Ring
Tip
Ring
Tip
Ring
Tip
To Premises
Phone
(Primary Lines)
Incoming Telco
Phone Lines
(Secondary Lines)
Incoming Telco
Phone Lines
Note: Shorting bars
inside RJ31X Jack
removed during
male plug insertion
7 foot Cable (MCBL-7)
Not supplied - Order
Separately
Modular
Female
Connector
Secondary Phone Line
PH2
Male Plug Connectors
Primary Phone Line
PH1
411UD
Green Wire
41
1ja
ck.cdr
