ADT Unimode 400 Multi-Net Installation Manual page 113

Installing a Fire Fighter's Telephone (FFT-7 and FFT-7S)
Unimode 400 Installation PN 50710:A 10/22/97
Figure 4-8 shows FFT-7/FFT-7S terminals and connections to other devices in the
system. Follow the instructions in Table 4-8 to connect an FFT-7 or FFT-7S to a
Unimode 400 system:
6: &RYHU
)LJXUH  ))7))76 7HUPLQDOV
Component Function
P1 Plug for power
harness out
(75099)
P2 Plug for power
harness in
(75099)
P3 Telephone signal
loop
P4 FFT-7/AMG
control harness
(75097)
P5 No connection
SW1 Two-wire/four-
wire selector
switch
Table 4-8 FFT-7/FFT-7S Terminals and Connections
$8',2 $0*         3
3
3
3
),5(
3$*( 02'(
),*+7(56
3$*(
7(/(3+21(
3+21(
7528%/(
Use to
Connect a harness to another device in the chain.
Connect a harness between FFT-7 and MPS-400 to power the
FFT-7 from the MPS-400.
Make connections to a telephone circuit. P3 pin assignments are:
Pin Connection
1 no connection
2 Style Z return (–)
3 Style Z return (+)
4 Shield
5 Telephone output (–)
6 Telephone output (+)
7 no connection
8 no connection
Connect to plug P6 on the AMG or plug P5 on the ATG-2.
N/A
Set the control panel for four-wire operation:
1) Remove the switch cover.
2) Set SW1 for four-wire operation.
 9RLFH $ODUP 6\VWHP
3
21 /,1(
/,1(
7528%/(
Instructions
N/A
Connect to J6 on last
VCM-4 on circuit.
N/A
Connect to J5 on first
VCM-4.
N/A
N/A
4-9