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5409216-REV A 3/21
INSTALLATION MANUAL: FFT-EXP FIRE FIGHTERS TELEPHONE EXPANDER
Potter Electric Signal Company, LLC • St. Louis, MO • Phone: 800-325-3936 • www.pottersignal.com
NOTICE TO THE INSTALLER
This manual provides an overview and the installation instructions for the FFT-EXP module. All terminals are power limited
and should be wired in accordance with the requirements of NFPA 70 (NEC) and NFPA 72 (National Fire Alarm Code).
Failure to follow the wiring diagrams in the following pages will cause the system to not operate as intended. For further
information, refer to the control panel installation instructions. The module shall only be installed with listed control panels.
Refer to the control panel installation manual for proper system operation.
1. DESCRIPTION
The FFT-EXP is an expander module that provides 12 Class B or 6 Class A phone circuits. The expander module
connects to the FFT-1000 through the F-Link and Voice terminals and is expandable up to six (6) devices for Class B
systems and up to fourteen (14) for Class A systems.
A maximum of two (2) FFT-EXP’s can be mounted in the FFT-1000. Additional FFT-EXP’s may be mounted in the AE-8
and AE-14 remote cabinets. All FFT-EXP’s must be installed in the same room within 20 feet of the FFT-1000 and wiring
must run in conduit.
AE-8 (Part Number 3992675) – A maximum of four (4) FFT-EXP’s can be stored in the AE-8 enclosure.
AE-14 (Part Number 3992676) – A maximum of six (6) FFT-EXP’s can be stored in the AE-14 enclosure.
2. SETTING THE ADDRESS
The FFT-EXP address is set by a five (5) position dip switch, which is used to program the device address ranging from
one (1) to fourteen (14).
FIGuRE 1. DIP SWITCH SETTINGS TABLE (ADDRESSES 1
–
31)
Note:
Each
"gray" box
indicates that the dip switch is
"On,"
and each
"white" box
indicates
"Off."
The examples shown below illustrate a P-Link's dip switch settings: the 1st example shows a P-Link module
not ad-
dressed
where all dip switch settings are in the
default
"Off" position
, the 2nd illustrates an
addressed P-Link module
via
the dip switch settings.
FIGuRE 2. EXAMPLES OF P-LINK MODuLE SHOWING DEFAuLT DIP SWITCH SETTING (uNADDRESSED) & ADDRESSED
1 2 4 8 16
1 2 4 8 16
1
17
2
18
3
19
4
20
5
21
6
22
7
23
8
24
9
25
10
26
11
27
12
28
13
29
14
30
15
31
16
1 2 4 8 16
1 2 4 8 16
OFF
ON
1 2 4
16
8
All dip switches are
shown in the "Off"
position.
OFF
ON
1 2 4
16
8
Example shows this P-Link module
address = 10. Dip switches #2 & 8
are in the "On" position.