Potter PFC-7500 User manual

Manual #8910227 - Rev E
7/10
5757 Phantom Dr. Ste 125 • P.O. Box 42037 • St. Louis, MO 63042
[phone] • [phone] • FAX [phone]
www.pottersignal.com
PFC-7500/PFC-7501
Fire Alarm
Communicator
Installation Manual
(All specications subject to revision.)

MODEL PFC-7500/PFC-7501
COMMAND PROCESSOR
INSTALLATION GUIDE
FCC NOTICE
This equipment generates and uses radio frequency energy and, if not installed and used properly in strict accordance with the
manufacturer’s instructions, may cause interference with radio and television reception. It has been type tested and found to comply
with the limits for a Class B computing device in accordance with the specication in Subpart J of Part 15 of FCC Rules, which
are designed to provide reasonable protection against such interference in a residential installation. If this equipment does cause
interference to radio or television reception, which can be determined by turning the equipment off and on, the installer is encouraged
to try to correct the interference by one or more of the following measures:
Reorient the receiving antenna
Relocate the computer with respect to the receiver
Move the computer away from the receiver
Plug the computer into a different outlet so that computer and receiver are on different branch circuits
If necessary, the installer should consult the dealer or an experienced radio/television technician for additional suggestions. The
installer may nd the following booklet, prepared by the Federal Communications Commission, helpful:
“How to identify and Resolve Radio-TV Interference Problems.”
This booklet is available from the U.S. Government Printing Ofce, Washington D.C. 20402
Stock No. 004-000-00345-4
Copyright © 1995 - 2008 Potter Electric Signal Company, LLC
Information furnished by Potter is believed to be accurate and reliable.
This information is subject to change without notice.

iii
Panel Specications
1.1 Power Supply .......................................................................................... 1
1.2 Communication....................................................................................... 1
1.3 Panel Zones ............................................................................................. 1
1.4 Remote Annunciators (Alphanumeric or LED Keypads) ....................... 1
1.5 Auxiliary Outputs.................................................................................... 1
1.6 Push-Button Reset................................................................................... 1
1.7 Enclosure Specications ......................................................................... 1
Introduction
2.1 Description .............................................................................................. 2
2.2 Zone Expansion....................................................................................... 2
2.3 Caution Notes.......................................................................................... 2
2.4 Compliance Instructions.......................................................................... 2
System Components
3.1 Description .............................................................................................. 3
3.2 PFC-7501 Wiring Diagram ..................................................................... 3
3.3 PFC-7500 Wiring Diagram ..................................................................... 4
3.4 Lightning Protection................................................................................ 4
3.5 Keypads................................................................................................... 4
Installation
4.1 Mounting the Enclosure .......................................................................... 5
4.2 TAM Trouble Annunciator Module......................................................... 5
4.3 Mounting Keypads.................................................................................. 6
4.4 Wiring Specications for the Keypad Bus.............................................. 6
4.5 Terminal Wiring Connections ................................................................. 6
Primary Power Supply
5.1 Installing the Transformer....................................................................... 7
5.2 Terminals 1 and 2.................................................................................... 7
Secondary Power Supply
6.1 Battery Terminals 3 and 4 ....................................................................... 8
6.2 Earth Ground........................................................................................... 8
6.3 Replacement Period ................................................................................ 8
6.4 Discharge/Recharge ................................................................................ 8
6.5 Battery Supervision................................................................................. 8
6.6 PFC-7500/PFC-7501 Power Requirements ............................................ 9
6.7 PFC-7500/PFC-7501 Standby Battery Calculations............................... 9
Bell Output
7.1 Terminal 5 (PFC-7501 Only) ................................................................ 10
4-Wire Smoke Detector Power
8.1 Terminal 6 (PFC-7501 Only) ................................................................ 10
Keypad Bus
9.1 Description ............................................................................................ 10
9.2 Terminal 7 - RED.................................................................................. 10
9.3 Terminal 8 - YELLOW ......................................................................... 10
9.4 Terminal 9 - GREEN............................................................................. 10
9.5 Terminal 10 - BLACK .......................................................................... 10
Class A (Style D) Fire Zone
10.1 Description ............................................................................................ 10
Class B (Style A) Fire Zones
11.1 Description ............................................................................................ 11
11.2 Operational Parameters ......................................................................... 11
11.3 Zone Response Time............................................................................. 11
11.4 Compatible 2-Wire Smoke Detectors ................................................... 11
Table of Contents

iv
Form C Relay Outputs
12.1 Description ............................................................................................ 12
Annunciator Outputs
13.1 Description ............................................................................................ 12
13.2 Harness Wiring...................................................................................... 12
Telephone RJ Connector
14.1 Description ............................................................................................ 12
14.2 FCC Registration................................................................................... 12
14.3 Notication............................................................................................ 13
Reset Jumper J9
15.1 Description ............................................................................................ 13
Silence/Reset Button
16.1 Silence/Reset Button ............................................................................. 13
16.2 Bell Circuit Monitor.............................................................................. 13
Dual Phone Line Connectors
17.1 Description ............................................................................................ 13
Listed Compliance Specications
18.1 Introduction........................................................................................... 14
18.2 NFPA..................................................................................................... 14
Universal Fire Alarm Specications
19.1 Introduction........................................................................................... 14
19.2 Wiring.................................................................................................... 14
19.3 Police Station Phone Number ............................................................... 14
19.4 System maintenance.............................................................................. 14
19.5 Audible alarm (PFC-7501 only)............................................................ 14
19.6 Listed Receivers.................................................................................... 14
Control Units for Fire-Protective Signaling Systems
ANSI/UL 864, NFPA 72
20.1 Power Supply ........................................................................................ 14
20.2 Power Fail delay.................................................................................... 14
20.3 Central Station Signaling Systems........................................................ 14
20.4 Local Protective Signaling Systems...................................................... 14
20.5 Remote Station Protective Signaling Systems ...................................... 15
20.6 Remote Annunciators............................................................................ 15
20.7 Notication Appliances ........................................................................ 15
20.8 Cross Zoning ......................................................................................... 15
20.9 Ground Fault ......................................................................................... 15
California State Fire Marshal Specications
21.1 Bell Output Denition........................................................................... 15
Wiring Diagrams
22.1 SNM with NAC Extender ..................................................................... 16
22.2 SNM Class B Style W using Single Notication Appliance................. 17
22.3 SNM Class B Style W using Multiple Notication Appliances............ 18
22.4 SNM Class B Style W Multiple Notication Appliance Circuits ......... 19
22.9 Remote Station Reversing Relay Connection....................................... 20
22.10 Supervised Remote Relay ..................................................................... 21
22.11 PFC-7500 Connection to FACP ............................................................ 22
Listings and Approvals

1
1.1 Power Supply
Primary Power Input: 16.5 VAC 40 VA (Model WLT wire-in) or 12/24 VDC from Fire Alarm Control Panel (FACP)
Standby Battery: One or two 12 VDC batteries
Auxiliary Output: 500mA at 12 VDC
Bell Output: .6 Amps at 12 VDC (PFC-7501 only)
Smoke Detector Output: 100mA at 12 VDC (PFC-7501 only)
All circuits inherent power limited except the red battery wire.
* For Commercial Fire installations, see the Compliance Instructions section.
1.2 Communication
Built-in SDLC Digital Dialer communication to Potter Model SCS-1R Receivers.
Built-in CID communication to non-Potter (Contact ID) receivers.
Can operate as a local system (PFC-7501 only).
1.3 Panel Zones
One Class A (Style D) zone (terminals 11 to 14).
Four 3.3K Ohm EOL Class B (Style A) powered re zones with reset capability (terminals 15 to 22).
1.4 Remote Annunciators (Alphanumeric or LED Keypads)
Connect RA-7630 keypads and LED keypads to the PFC-7500/PFC-7501 keypad bus.
1.5 Auxiliary Outputs
Two Form C (SPDT) outputs (Outputs 1 and 2). Each output requires one Model 305 plug-in relay. Each relay is rated
for 1 Amp at 30 VDC.
Four open collector annunciator outputs (Outputs 1 to 4). No relay is required. Each output is rated for 50mA at 30
VDC resistive.
1.6 Push-Button Reset
The PFC-7500/PFC-7501panels each provide a push button mounted on the printed circuit board that allows authorized
users to reset latch detectors and silence active alarm bell outputs. See section 16.1.
1.7 Enclosure Specications
The PFC-7500/PFC-7501 panels are shipped in an enclosure with End-of-Line resistors, battery leads, User’s Guide
8910224, and Programming Sheet.
Size: 12.5” W x 9.5” H x 3.75” D
Weight: 4 lbs
Color: Red
Construction: 20-gauge cold-rolled steel
Panel Specications

2
2.1 Description
The Potter PFC-7500/PFC-7501 Commercial Fire Panels are powerful 12 VDC re alarm communicators with
battery backup that can also be powered from the 12 or 24 VDC auxiliary output of a Fire Alarm Control Panel
(FACP). Each panel provides one Class A (Style D) re zone and four Class B (Style A) powered re zones with reset
capability for 2-wire smoke detectors, relays, or other latching devices.
In order to power the PFC-7500/PFC-7501 from the 12 VDC or 24 VDC of an FACP, the FACP must operate as a
grounded control panel. If the FACP is a non-grounded system, it may detect a ground fault when connected to the
PFC-7500/PFC-7501 panel AC or DC Input terminals. In this case the panel should be powered from a separate WLT
wire-in transformer and not from the FACP.
The PFC-7500/PFC-7501 panels can communicate to one or two Potter SCS-1R Receivers using SDLC digital dialer
or up to two non-Potter (Contact ID) receivers using the CID reporting format.
2.2 Zone Expansion
Up to 4 additional zones are available on the PFC-7500/PFC-7501 using a 714 or 715 zone expansion module. The
panel keypad data bus supports one supervised device address with up to four programmable expansion zones. The
four zone numbers are 31-34.
Note: Do not use shielded wire for Keypad Bus circuits.
2.3 Caution Notes
Throughout this guide there are caution notes containing information about installing the panel. These cautions are
indicated with a yield sign. Whenever you see a caution note, make sure you completely read and understand its
information. Failing to follow the caution note can cause damage to the equipment or improper operation of one or
more components in the system. See the example shown below.
Always ground the panel before applying power to any devices: The PFC-7501 must be properly grounded before
connecting any devices or applying power to the panel. Proper grounding protects against Electrostatic Discharge
(ESD) that can damage system components.
2.4 Compliance Instructions
For applications that must conform to a local authorities installation standard or a National Recognized Testing
Laboratory certicated system, please see the Wiring Diagrams for Notication Appliances and the Listed Compliance
Specications section near the end of this guide for additional instructions.
Introduction

3
3.1 Description
A basic PFC-7500/PFC-7501 system is made up of the alarm panel with built-in communicator, an enclosure, a 16.5
VAC wire-in transformer, and a 12 VDC 7.0 Ah battery. You can add up to two alphanumeric keypads and one or more
LED keypads to the panel and also connect control and annunciating devices to the panel Form C and annunciator
outputs. Refer to the Power Requirements section in this guide when calculating power requirements.
3.2 PFC-7501 Wiring Diagram
The PFC-7501 system below shows some of the accessory devices for use in various applications.
Panel Re se t
RED
BLACK
GREEN
Keypad bus
22 gauge min.
BLACK
YELLOW
RED
Co ld Water Pi pe
Earth Gr ound
Output Header J1 1
Tw o Fo rm C (SPDT) Outputs.
Zone 2
AC
1234 78 10 11 12 13 14 15 16
AC B+ B-
9
REDYEL GRNBLK Z1B- Z2 -Z2+1
2
3
4J1 2
Z1A- Z1B+Z1A+
MODEL 7500
MAIN BACKUP
J1 1
N/ C COM N/ O N/ C COM N/ O
Output Header J1 2
Fo ur Op en Co llect or Outputs.
50mA at 30 VDC resi st ive
Re lay So ckets for Optional
Form C Outputs on J11
Requires Form C Relays
Telephone Connections
Zone 1
J10 Trouble Annunciator Header
S
S
Direct connect to
unsw itched 120 VAC 60 Hz
Secondary Power Su pply
12 VDC
1.2 Amps max. charging current.
Up to 500mA auxiliary
current at 12 VDC from
Terminal 7.
5 Zone LED Ke ypads
56
BELL SM K
Zone 4
Zone 5
Be ll Ci rcuit
Po wer
Su pervision
Re lay
(if code requires)
Ke ypad
Model RA-7692
30mA at 8 to 16 VDC
Expander
Model ZA714/ZA715
7mA at 12 VDC
+3.3k
EOLR
+
Sm oke
Detector
RED
BLACK
GROUND
Output 1Output2
OUTPUT 1
OUTPUT 2
SI LENCE/ RESET
PUSH FOR ONE SECOND
Si lence/ Re se t
Button
Silence/ Re se t
Header
17 18
Z3 -Z3+
19 20
Z4 -Z4+
21 22
Z5 -Z5+
W
W
Up to 100mA of current isavailable for
All zones are supervised
4-wire sm oke detectors from terminal 6.
Be ll Monitor
Zone 3
S
S
-
-
J1 3
Sm oke
Detector
3.3k
EOLR
J1 4
TAM
Tr ouble
Annunciator
Module
16.5 VAC 40V A
wire-in transf ormer
3.3k
EOLR
Ke ypad
Model RA-7630
63mA at 8.5 to 14 VDC
POWER
TROUBLE
ALARM
COMMAND
1234
5678
90
ABC DEF GHI JKL
MNOPQR STU VWX
YX
ENABLE
SILENCE
RESET
TEST
DRILL
Fire Command Center
C1 C4
U1
U2
CR3 TXD
J1
R
E
D
Tens Ones
.6 Ampsat 12 VDC
S
SS
SSS
POWER LIMITED
All circuits on the Model PFC-7501 comply
with the requirements for inherent power
limitation and are Class 2 except the
red battery wire.
WARNING
THIS UNIT MAY BE PROGRAMMED TO USE AN ALARM
VERIFICATION FEATURE THAT RESULTS IN DELAY OF THE SYSTEM
ALARM SIGNAL FROM THE INDICATED CIRCUITS. THE TOTAL
DELAY (CONTROL UNIT PLUS SMOKE DETECTORS) SHALL NOT
EXCEED 60 SECONDS. NO OTHER SMOKE DETECTORS SHALL BE
CONNECTED TO THESE CIRCUITS UNLESS APPROVED BY THE
LOCAL AUTHORITY HAVING JURISDICTION.
S
S
S S S S S S S
S S
S
S
S
S
S
USE MARKING
Co mmercial Pr otected
Pr emises Co ntrol Unit
TYPES OF SERVICE
Central Station DACT, Remote Station Signaling Service, Suitable for manual re
alarm, automatic re alarm, sprinkler supervisory or waterow alarm.
Model WLT
Use Model 300 Harness
Figure 1: PFC-7501 Wiring Diagram
System Components

4
3.3 PFC-7500 Wiring Diagram
The PFC-7500 system below shows some of the accessory devices for use in various applications.
AC
13
+B
5
BELL
6
SMK
11
Z1A+
7
RED
8
YEL
9
GRN
10
BLK
2
AC
4
-B
12
Z1A-
13
Z1B+
14
Z1B-
15
Z2+
16
Z2-
17
Z3+
18
Z3-
19
Z4+
20
Z4-
21
Z5+
22
Z5-
N/O
N/C COM N/O
N/C COM
J11
1
2
3
4
J12
OUTPUT 2 OUTPUT 1
MAIN BACKUP
Telephone
Connections
J4 J5 Silence/Reset
Header
J13
Bell
Monitor
J14
Silence/Reset
Button
Silence/Reset
Push for 1 Second Panel
Reset
J10 Trouble Annunciator Header
Relay Sockets for Optional
Form C Outputs on J11
RED
BLACK
GREEN
Up to 500mA auxiliary current at 12 VDC from terminal 7
BLACK
YELLOW
RED
GROUND
Cold Water Pipe
Earth Ground
Output Header J11
Two Form C (SPDT) Outputs.
Zone 2
Output Header J12
Four Open Collector Outputs.
50mA at 30 VDC resistive
Use Model 300 Harness
Zone 1
M
M
Direct connect to
unswitched 120 VAC 60 Hz
Secondary Power Supply
12 VDC
1.2 Amps Max. charging current.
Zone 5
Output 1 Output 2
W
W
Zone 3
S
S
TAM
Trouble
Annunciator
Module
Model WLT
16.5 VAC 40VA
wire-in transformer
3.3k Ohm
EOLR
Zone 3
H
S
Keypad
Model RA-7630
For sprinkler supervision,
Normally Open devices
must be used.
Zone 2
3.3k Ohm
Zone 4
3.3k Ohm
Zone 3
3.3k Ohm
Al outputs must be
connected to devices
located within the same
room as the panel.
Heat detectors, pull stations, or any other contact devices listed for
Fire Protective Signaling can be connected to zones 1 to 5.
Zones 2 to 5 compatibility identifier: A
Maximum operating range: 8.8 to 14.2 VDC.
S
SS
SS SSSSSS
SS
= Supervised Circuit
5 Zone LED Keypads
Keypad
Model RA-7692
30mA at 8 to 16 VDC.
63mA at 8.5 to 14 VDC
POWER
TROUBLE
ALARM
COMMAND
1234
5678
90
ABCDEF GHI JKL
MNO PQR STUVWX
YX
ENABLE
SILENCE
RESET
TEST
DRILL
Fire Command Center
SS
SSSS
POWER LIMITED
All circuits on the Model PFC-7500 comply
with the requirements for inherent power
limitation and are Class 2 except the
red battery wire.
WARNING
THIS UNIT MAY BE PROGRAMMED TO USE AN ALARM
VERIFICATION FEATURE THAT RESULTS IN DELAY OF THE SYSTEM
ALARM SIGNAL FROM THE INDICATED CIRCUITS. THE TOTAL
DELAY (CONTROL UNIT PLUS SMOKE DETECTORS) SHALL NOT
EXCEED 60 SECONDS. NO OTHER SMOKE DETECTORS SHALL BE
CONNECTED TO THESE CIRCUITS UNLESS APPROVED BY THE
LOCAL AUTHORITY HAVING JURISDICTION.
All zones are supervised
USE MARKING
Commercial Protected Premises
Control Unit
TYPES OF SERVICE
Central Station DACT, Remote Station Signaling Service, Suitable for
manual fire alarm, automatic fire alarm, sprinkler supervisory or
waterflow alarm.
Figure 2: PFC-7500 Wiring Diagram
3.4 Lightning Protection
Metal Oxide Varistors and Transient Voltage Suppressors on the panel help protect against voltage surges on input
and output circuits of the PFC-7500/PFC-7501 panels. Additional surge protection is available by installing the
Lightning Suppressors.
3.5 Keypads
You can connect the Models RA-7630 or RA-7692 keypads to the 4-wire keypad bus provided by the panel on terminals
7, 8, 9, and 10. Do not use shielded wire for the keypad bus.

5
4.1 Mounting the Enclosure
Mount the metal enclosure for the PFC-7500/PFC-7501 panels in a secure, dry place to protect the panels from damage due
to tampering or the elements. It is not necessary to remove the PFC-7500 or PFC-7501 PCB when installing the enclosure.
�
�
�
3/4" x 1/2" Knockout
Tw o 1 3/4" Wire Openings
Extra Deep 3 3/4" Cabinet
3/4" x 1/2" Knockouts
Tr ansformer Knockout
Figure 3: Mounting the Enclosure
4.2 TAM Trouble Annunciator Module
The TAM Module is installed on the enclosure door and connects to the panel through a 4-wire harness supplied with the
module. See Figure 4.
TAM Module Operation
The TAM Trouble Annunciator Module provides visual and audible annunciation of System Okay, communication
trouble, and panel processor failure. The module contains a Green LED for System Okay, a Yellow LED for Trouble, an
electronic sounder, and a Silence switch.
System Okay
When both phone lines are normal and the panel processor is operating, only the Green LED on the TAM Module is on.
This LED goes off during a Sensor Reset.
Communication Trouble
If either phone line connected to the panel is in a
bad condition, or if the panel has made TEN failed
attempts to send a report to the central station
receiver, the TAM Module emits a steady audible alert
and turns on the Yellow LED. The Silence switch can
be used to turn off the sounder only.
Panel Processor Failure
During a processor failure on the panel, or a remote
programming session, the TAM Module emits a
steady audible alert and turns on the Yellow LED.
The Silence switch does not turn off the sounder or
Yellow LED during these conditions.
TAM Trouble Annunciator Module
Figure 4: TAM Module Wiring
Installation

6
4.3 Mounting Keypads
Potter keypads have removable covers that allow you to easily mount the base to a wall or other at surface. After
installing the keypad mounting anchors and bringing the keypad wiring from the panel through the wall, mount the base
and connect the keypad wire harness leads to the keypad wiring. Next, attach the keypad wire harness connector to the
pin connector on the keypad circuit board and install the cover.
For mounting keypads on masonry walls, or for applications where conduit is required, use an appropriate Security
Command keypad conduit backbox.
4.4 Wiring Specications for the Keypad Bus
1. You can install individual keypads on wire runs of up to 500 feet using 22 gauge wire or up to 1,000 feet using 18
gauge wire. To increase the wire length or add additional devices, a power supply is required.
2. Maximum distance for any one keypad bus circuit (length of wire) is 2,500 feet regardless of the gauge of wire.
This distance can be in the form of one long wire run or multiple branches with all wiring totaling no more than
2,500 feet.
3. Maximum number of devices per 2,500 feet circuit is 40. (Refer to the Keypad Bus section for the specic number
of supervised keypads that are allowed.)
4. Maximum voltage drop between the panel (or auxiliary power supply) and any device is 2.0 VDC. If the voltage at
any device is less than the required level, an auxiliary power supply should be added at the end of the circuit.
Note: Do not use shielded wire for the keypad bus.
4.5 Terminal Wiring Connections
See Figure 5.
Figure 5: Wiring Connections
Do not use looped wire under terminals.
Break wire run to provide supervision of
connections.

7
5.1 Installing the Transformer
The transformer requires an unswitched 120 VAC 60 Hz electrical outlet with at least 350mA of available current. Never
share the transformer output with any other equipment. The 120 VAC circuit is not power limited.
To mount the Model WLT Transformer to a single-gang box adjacent to the PFC-7500/PFC-7501 enclosure, follow the
steps below. Refer to Figure 6 as needed.
1. Remove the lower knockout from the PFC-7500/PFC-7501 enclosure.
2. Attach a single-gang box adjacent to the PFC-7500/
PFC-7501 enclosure.
3. After the single-gang box is secured, attach the
transformer to the junction box, using the bottom box’s
bottom knockout. The screw on the transformer should
extend into the single-gang box.
4. Tighten the screw to secure the transformer to the
junction box .
5. An electrician must then connect the black and white
leads on the transformer to an unswitched 120 VAC 60 Hz
electrical outlet with at least 550mA of available current.
6. Connect the wires from the bottom (the side opposite
the attaching screw) two terminals on the transformer
to terminals 1 and 2 on the panel. Use no more than 70
ft. of 16-gauge wire or 40 ft. of 18-gauge wire between
the transformer and the PFC-7500 or PFC-7501 panel.
5.2 Terminals 1 and 2
AC Transformer Input
The transformer provides up to 500mA of auxiliary current for the PFC-7500/PFC-7501 panels. The total current
available is limited by the total battery standby requirements of the installation. See the Power Requirements section for
standby battery calculations.
Note: After power is applied to the PFC-7500/PFC-7501 panel, any SNM Notication Modules connected to the panel
display Bell Trouble for 20 seconds.
DC Power Input to AC Input
When powering the PFC-7501/SL panel from the 12 VDC output of an FACP, connect the positive wire to the positive
battery terminal of the PFC-7500/PFC-7501 and the negative wire to the negative battery terminal of the PFC-7500/
PFC-7501.
When powering the panel from the DC output of a 24 Volt Fire Alarm Control Panel (FACP), connect the positive wire
from the FACP to terminal 1 and the negative wire to terminal 2. In order to power the PFC-7500/PFC-7501 from the
12 VDC or 24 VDC of an FACP, the FACP must operate as a grounded control panel. If the FACP is a non-grounded
system, it may detect a ground fault when connected to the PFC-7500/PFC-7501 panel AC or DC Input terminals. In this
case the PFC-7500/PFC-7501 should be powered from a separate WLT wire-in transformer and not from the FACP.
Do not use battery backup with 12 or 24 VDC input: Do not connect any batteries to the PFC-7500 or PFC-7501 panels
when using the 12 or 24 VDC output from a FACP. The PFC-7500/PFC-7501 panels use the backup battery capability of
the FACP for their standby requirements.
When powering the PFC-7500 or PFC-7501 panel from the 24 VDC output of a FACP, the following features are
disabled:
• Bell Output on the PFC-7501
• AC test (PFC-7500/PFC-7501)
• Battery test (PFC-7500/PFC-7501)
Always ground the panel before applying power to any devices: The PFC-7500/PFC-7501 panels must be properly
Primary Power Supply
Maintain 1/4”
spacing between
battery leads and
power limited wiring.
Figure 6: Transformer Installation

8
grounded before connecting any devices or applying power to the panels. Proper grounding protects against Electrostatic
Discharge
(ESD) that can damage system components. See the Earth ground section.
6.1 Battery Terminals 3 and 4
Connect the black battery lead to terminal 4 on the panel and then to the negative terminal of the battery. The negative
terminal connects to the enclosure ground internally through the PFC-7500/PFC-7501 panel circuit board. Connect
the red battery lead to terminal 3 on the panel and then to the positive terminal of the battery. Observe polarity when
connecting the battery.
The PFC-7500/PFC-7501 panels are capable of recharging two 7.7 Ah batteries (15.4 Amp/hours) within 24 hours.
Do not use battery backup with 24 VDC input: Do not connect batteries to the PFC-7500/PFC-7501 panels when
powering the panels with 20 to 28.2 VDC voltage from a Fire Alarm Control Panel (FACP). The PFC-7500/PFC-7501
panels use the backup battery capability of the FACP for their standby requirements.
Use sealed lead-acid batteries only: Use only sealed
lead-acid rechargeable battery. Batteries supplied by Potter have been tested to ensure proper charging with Potter products.
DO NOT USE GEL CELL BATTERIES WITH THE PFC-7500/PFC-7501.
6.2 Earth Ground (GND)
Terminal 4 of the PFC-7500/PFC-7501 panels must be connected to earth ground using 14 gauge or larger wire to
provide proper transient suppression. Potter recommends connecting to a metal cold water pipe or ground rod only. Do
not connect to electrical conduit or a telephone company ground.
6.3 Battery Replacement Period
Potter recommends replacing the battery every 3 to 5 years under normal use.
6.4 Discharge/Recharge
The battery charging circuit on the PFC-7500/PFC-7501 panels oat charge at 13.9 VDC at a maximum current of 1.2
Amps using the Model WLT Transformer. The total current available is reduced by the combined auxiliary current draw
from terminals 6, 7, 15, 17, 19, and 21. The various battery voltage levels are listed below:
Battery Trouble: Below 11.9 VDC
Battery Restored: Above 12.6 VDC
6.5 Battery Supervision
The PFC-7500/PFC-7501 panels load test the battery once every three minutes when AC power is present on terminal
1 and 2. The test lasts for ve seconds. If, during the test, the battery voltage falls below 11.9 VDC a low battery is
indicated. The test is then repeated every two minutes until the battery charges above 12.6 VDC, the battery restored
voltage.
If the low battery does not recharge and is replaced with a fully charged battery, the charged battery will not be detected
until the next two minute test is done.
If AC power fails during normal system operation, a low battery is indicated any time the battery voltage falls below 11.9 VDC.
Secondary Power Supply

9
6.6 PFC-7500/PFC-7501 Power Requirements
During AC power failure, the PFC-7500/PFC-7501 panels, and all auxiliary devices connected to the panels, draw their
power from the battery. All devices must be taken into consideration when calculating the battery standby capacity.
Below is a list of the power requirements of the PFC-7500/PFC-7501 panels. Add the additional current draw of Potter
keypads, smoke detectors, and any other auxiliary devices used in the system for the total current required.
6.7 PFC-7500/PFC-7501 Standby Battery Calculations
Standby Battery Power Calculations Standby Current Alarm Current
PFC-7500/PFC-7501 Panel
Relay Outputs 1-2 (ON)
Active Zone 1
Active Zones 2-5
521B/BXT Smoke Detectors
SLR-835B Smoke Detectors
Other 2-Wire Smoke Detectors
Bell Output (600mA Max.)
Qty __1___x
Qty ______x
Qty ______x
Qty ______x
Qty ______x
Qty ______x
50mA
30mA
3.3mA
4mA
0.070mA
0.070mA
0.1mA
______mA
______
______
______
______
______
______
______
Qty __1___
Qty ______x
Qty ______x
Qty ______x
Qty ______x
Qty ______x
50mA
30mA
3.3mA
4mA
0.070mA
0.070mA
0.1mA
______mA
______
______
______
______
______
______
______mA
TAM Trouble Annunciator Module 17mA ______ 17mA ______
RA-7630 Remote Fire Command Center Qty ______x 63mA ______ Qty ______x 92mA ______
RA-7692 Fire Security Command Keypad Qty ______x 30mA ______ Qty ______x 70mA ______
714 Zone Expansion Module
Active Zones (EOL Installed)
Qty ______x
Qty ______x
7mA
1.6mA
______
______
Qty ______x
Qty ______x
7mA
*2mA
______
______
715 Zone Expansion Module
Active Zones (EOL Installed)
Smoke Alarms
Qty ______x
Qty ______x
Qty ______x
7mA
4mA
.1 mA
______
______
______
Qty ______x
Qty ______x
Qty ______x
7mA
*30mA
.1mA
______
______
______
SNM Style W Notication Module Qty ______x 45mA ______ Qty ______x 76mA ______
Aux. Powered Devices on Terminals 7 and 6
Other than Keypads
______mA ______mA
Total Standby
Total Standby______mA x number of Standby Hours needed
Total Alarm
*Based on 10% of active zones in alarm
______mA
______ =
______mA
+
Total
Total Alarm _______mA
_________mA-hours
_________mA-hours
_________mA-hours
X 0.0001
= ________Amp-hrs Required

10
7.1 Terminal 5 (PFC-7501 Only)
Terminal 5 supplies 12 VDC Bell Output to power alarm bells or horns. The output is rated for a maximum of 1.5
Amps. This output can be steady or temporal depending upon the Bell Action specied in Output Options programming.
Terminal 10 is the ground reference for terminal 5. See the Notication Appliance section for a list of approved
notication appliances and the Wiring Diagrams for connections
4-Wire Smoke Detector Power
8.1 Terminal 6 (PFC-7501 Only)
Terminal 6 provides up to 100mA at 12 VDC to power 4-wire smoke detectors or other auxiliary powered devices. This
output can be turned off by the user for 5 seconds using the Sensor Reset User Menu option. Terminal 10 is the ground
reference for terminal 6.
Keypad Bus
9.1 Description
Terminals 7, 8, 9, and 10 of the PFC-7500/PFC-7501 panels provide a Class B, Style 3.5 keypad bus to connect an
unlimited number of RA-7692 LED keypads, two RA-7630 keypads, and other auxiliary devices. In addition, to
keypads, connect a 714 or 715 zone expansion module to the Keypad Bus.
9.2 Terminal 7 - RED
Terminal 7 provides 12 VDC regulated keypad power for Potter keypads. You can also connect 12 VDC auxiliary
devices to terminal 7. The ground reference for terminal 7 is terminal 10. The maximum output is rated at 500mA on the
PFC-7500/PFC-7501 panels. All auxiliary devices totalled together must not exceed the panel’s maximum current rating.
See Power Supply in the Compliance section for maximum current in a re listed application.
9.3 Terminal 8 - YELLOW
Data receive from devices.
9.4 Terminal 9 - GREEN
Data transmit to devices.
9.5 Terminal 10 - BLACK
Terminal 10 is the ground reference for keypads and any auxiliary devices powered by terminal 7.
Note: Do not use shielded wire when wiring keypads or other devices.
Class A (Style D) Fire Zone
10.1 Description
Terminals 11 to 14 are the panel’s Class A (Style D) re zone. This zone is suitable for connecting waterow devices,
heat detectors, and other non-powered re devices. For programming purposes, this is zone number 1. The zone is rated
for 1.66mA at 5.0 VDC.
The zone conguration on terminals 11 to 14 are described below.
Terminal Function Terminal Function
11 Zone 1 voltage sensing 12 Negative for terminal 11
13 Zone 1 voltage sensing 14 Negative for terminal 13
The voltage sensing terminal measures the voltage across the circuit and the zone’s negative terminal. Dry contact
sensing devices can be used only in parallel (normally-open) with zone 1. There are no End-of-Line resistors on a Class
A (Style D) zone. The maximum line impedance is 100 Ohms.
Bell Output

11
11.1 Description
Terminals 15 to 22 are the Class B (Style A) re zones on the PFC-7500/PFC-7501 panels. These zones are suitable for
connecting powered or non-powered re devices. For programming purposes, these zones are designated 2 to 5. The
maximum line impedance is 100 Ohms. The zone congurations on terminals 15 to 22 are described below:
Terminal Function Terminal Function
15 Zone 2 voltage sensing 16 Zone 2 negative
17 Zone 3 voltage sensing 18 Zone 3 negative
19 Zone 4 voltage sensing 20 Zone 4 negative
21 Zone 5 voltage sensing 22 Zone 5 negative
11.2 Operational Parameters
The Class B (Style A) zones on the PFC-7500/PFC-7501 panels can detect three conditions: open, normal, and short. Each
zone terminates with a Model 309, 3.3k Ohm EOL resistor (provided with the panel) and is rated for 53mA at 12 VDC.
The compatibility identier for use with 2-wire smoke detectors is: A.
11.3 Zone Response Time
A condition must be present on the zone for at least 500 milliseconds before it is detected by PFC-7500/PFC-7501
panels. Only use detection devices that are rated for use with this delay.
11.4 Compatible 2-Wire Smoke Detectors
The table below lists detectors meeting the compatibility requirements for use with the Class B (Style A) zones on the
PFC-7500/PFC-7501 re panels. Do not mix detectors from different manufacturers on the same zone.
Manufacturer Model Detector
ID Base Base ID # of Detectors
Detection Systems DS250 B MB2W A 10
Detection Systems DS250TH, DS250HD B MB2W, MB2WL A 10
Detection Systems DS282, DS282TH B 10
Hochiki SLK-12 HD-4 HSB-12-1, HSB-12-1N HB-80 20
Potter/Hochiki SLK-835, SLK-835H HD-5 HSB-200, HSB-200N HB-55 7
Potter/Hochiki SLR-835 HD-3 NS6-100 HB-55 7
Potter/Hochiki SLR-835B HD-6 7
Sentrol/ESL 429AT, 521B, 521BXT S09A 12
System Sensor 1100, 1400 STD 10
System Sensor 1151 STD B110LP 10
System Sensor 1451, 2451TH STD B401, B401B 10
System Sensor 1451DH STD DH400 10
System Sensor 2100, 2100T STD 10
System Sensor 2400, 2400AT,
2400AIT, 2400TH
STD 10
System Sensor 2451 STD B401, B401B, DH400 10
Class B (Style A) Fire Zones

12
12.1 Description
The PFC-7500/PFC-7501 panels can provide two programmable auxiliary Form C (SPDT) relays when equipped with
plug-in relays in sockets OUTPUT 1 and OUTPUT 2. Each relay is rated for 1 Amp at
30 VDC (allows .35 power factor).
Each output provides one Common, one Normally Open, and one Normally Closed terminal. Field wiring for the Form C
relays connects to the 6-position terminal strip on the lower right corner of the PFC-7500/PFC-7501 boards.
The Form C relays can be operated by any of the functions listed below:
1) Activation by a zone condition 3) Fire alarm or Fire trouble
2) Communication Failure
Annunciator Outputs
13.1 Description
The PFC-7500/PFC-7501 panels provide four programmable open collector annunciator outputs that can be programmed to
indicate the activity of the panel zones or conditions occurring on the system. Open collector outputs do not provide a voltage
but instead switch to ground voltage from another source. Each annunciator output is rated for 50mA at 30 VDC resistive.
Form C and Annunciator outputs operate together: The Form C outputs 1 and 2 are internally connected to the
Annunciator outputs 1 and 2. Any options assigned to Output 1 or 2 in the panel’s Output Options programming applies
to both outputs. While the Form C outputs each require a Plug-in Relay, the annunciator outputs work without the relays.
The Annunciator outputs can respond to any of the conditions listed below:
1) Activation by zone condition
2) Communication failure
3) Fire Alarm, Fire Trouble, or Supervisory
13.2 Harness Wiring
The Annunciator outputs are accessible by installing the Harness on the 4-pin header labeled J12. The output locations
are shown below:
Output Color Wire
1 Red 1
2 Yellow 2
3 Green 3
4 Black 4
Devices connected to the outputs must be located within the same room as the PFC-7500/PFC-7501 panels.
Telephone RJ Connector
14.1 Description
Connect the panel to the public telephone network by installing RJ Cables between the panel’s J4 (MAIN) and J5
(BACKUP) connectors, and the RJ31X or RJ38X phone jacks on the 356 cable. The maximum line impedance is 100 Ohms.
14.2 FCC Registration
The PFC-7500/PFC-7501 panels comply with FCC part 68 and are registered with the FCC.
Registration number: CCKUSA - 1SNM0 - AL - R
Ringer Equivalence: 1.1B
Form C Relay Outputs

13
14.3 Notication
Registered terminal equipment must not be repaired by the user. In case of trouble, the device must be immediately
unplugged from the telephone jack. The factory warranty provides for repairs. Registered terminal equipment may not be
used on party lines or in connection with coin telephones. No tication must be given to the telephone company of:
a. The particular line(s) the service is connected to
b. The FCC registration number
c. The ringer equivalence
d. The make, model, and serial number of the device
Reset Jumper J9
15.1 Description
There is a reset jumper located at the top right of the panel circuit board labeled RESET. Momentarily shorting the metal
wires of the jumper with a screwdriver resets the microprocessor of the PFC-7500/PFC-7501 panels to enter the internal
Programmer.
Reset the panel while the system is operational (for example, during a service call) without powering down the system.
After resetting the panel for programming, begin within 30 minutes. If longer than 30 minutes, reset the panel again.
Silence/Reset Button
16.1 Silence/Reset Button
The PFC-7500/PFC-7501 panels each contain a mechanical push button located on the top center of the printed circuit
board that allows authorized users to silence alarm bells or sirens and reset latched detection devices.
After pressing the button, the panel silences the Bell output (PFC-7501 terminal 5) and momentarily drops power to
the auxiliary output (PFC-7501 terminal 6), the TAM Trouble Annunciator Module, and zones 2 to 5 (both panels).
Additionally, any Fire or Supervisory event displays at the keypads are also cleared. A 2-pin reset header (J13) is also
provided for use with keyswitches.
16.2 Bell Circuit Monitor
The PFC-7501 panel contains a bell monitor input (J14) that can be connected to the trouble contacts of the SNM
Notication Circuit Module. When the 2-pin header is shorted via the notication module, the Bell Circuit Monitor is in
a restored condition. When the trouble contacts open, a bell circuit trouble is indicated. The PFC-7501 is shipped from
the factory with a shorting clip on the 2-pin header to indicate a restored condition. A harness is used to connect the J14
Bell Circuit Monitor to the trouble contacts of the SNM Notication Circuit Module.
Dual Phone Line Connectors
17.1 Description
The PFC-7500/PFC-7501 panels contain built-in dual phone line capability that allows the panel to monitor two
phone lines, indicate a phone line failure, and switch to the alternate phone line to communicate alarm and system
reports to a central station.
Before sending a report, the panel veries whether the main phone line is working. If not, the panel sends the report over
the backup phone line. An integrated phone line monitor circuit continually tests the phone lines and indicates a trouble
condition on the line after 90 seconds. If the phone line restores and is good for 90 seconds, the panel ends the phone line
trouble indication.
The maximum line impedance is 100 Ohms.

14
18.1 Introduction
For applications that must conform to a local authorities installation standard or a National Recognized Testing Laboratory
certicated system, please see the following sections.
18.2 NFPA
This equipment should be installed in accordance with the National Fire Alarm Code, ANSI/NFPA 72, (National Fire
Protection Association, Batterymarch Park, Quincy, MA 02269). Printed information describing proper installation,
operation, testing, maintenance, evacuation planning, and repair service is to be provided with this equipment.
Universal Fire Alarm Specications
19.1 Introduction
The programming and installation specications contained in this section must be completed when installing the PFC-
7500/PFC-7501 panels in accordance with any of the ANSI/UL or NFPA re standards. Additional specications may be
required by a particular standard. See the PFC-7500/PFC-7501 Programming Manual (Stk# 8910225).
19.2 Wiring
All wiring must be in accordance with NEC, ANSI/NFPA 70.
19.3 Police Station Phone Number
The digital dialer telephone number programmed for communication must not be a police station phone number, unless
that phone number is specically provided for that purpose.
19.4 System Maintenance
Proper installation and regular maintenance by the installing alarm company and frequent testing by the end user
is essential to ensure continuous sat isfactory operation of any alarm system. Offering a maintenance program and
acquainting the user with the correct procedure for use and testing of the system is also the responsibility of the installing
alarm company.
19.5 Audible Alarm (PFC-7501 only)
Fire Type zones should be programmed to activate an audible alarm. The Bell Action for Fire Type zones should not be
programmed as “N”.
19.6 Listed Receivers
Operation has been veried with the SCS-1R, Sur-Gard SG-HLR2-DG, FBII CP220PB, Osborne-Hoffman Quick-Alert,
and Radionics D6500 receivers.
Control Units for Fire-Protective Signaling Systems
ANSI/UL 864, NFPA 72
20.1 Power Supply
For listed installations, the total current combined from Auxiliary and Bell Power cannot exceed:
1.0 Amps with a 40 VA transformer; .4 Amp Max for Auxiliary Power and .6 Amp Max for Bell
20.2 Power Fail delay
The Power Fail Delay option must be set to a maximum of 3 hours .
20.3 Central Station Signaling Systems
Two phone lines must be used. The two phone lines cannot be ground start or party lines.
Two different phone numbers must be programmed for digital communication.
20.4 Local Protective Signaling Systems
The Potter SNM Notication Circuit Module must be used on the bell circuit for detection of shorts and grounds.
Listed Compliance Specications
Owner’s instruction notice shall not be removed by anyone
except occupant.

15
20.5 Remote Station Protective Signaling Systems
60 hours of standby battery must be provided. Up to two 12 VDC, 7.0 Ah batteries may be used. See standby battery
calculations. The Radionics Model D127 Reversing Relay Modules may be used to provide two reversing polarity
telephone connections instead of dual phone lines. See the D127 installation instruction sheet for wiring details.
20.6 Remote Annunciators
At least one Model RA-7630 or RA-7692 Remote Annunciator must be used on the system. When using a RA-7692
keypad, install one the panel door as described in the RA-7692 installation guide.
When using a RA-7630 keypad, install the keypad using conduit within 20 feet of the panel.
20.7 Notication Appliances
The following table indicates approved 12 VDC notication appliances.
Wheelock Model No. Description No. of Appliances
MT-12/24 Multi-tone Horn 5
MB-G6-12 Bell, 6 inch 11
MB-G10-12 Bell, 10 inch 11
RSS-121575W-F Strobe, 15/75 candela 3
RSSP-121575W-F Strobe, w/retrot plate 3
NS-121575W-F Horn Strobe, 15/75 candela 3
SM-12/24-R Sync Module, Single circuit,
DSM-12/24-R Sync Module, Dual circuit
20.8 Cross Zoning
When using cross zoning, there must be a minimum of two detectors installed in each protected space and the detector
installation spacing must be 0.7 times the linear spacing in accordance with National Fire Alarm Code, NFPA 72.
20.9 Ground Fault
For supervised circuits, ground fault is detected at 0 (zero) Ohms.
California State Fire Marshal Specications
21.1 Bell Output Denition
The bell output of the Model PFC-7501 must be programmed to operate Temporal for re alarms.

16
22.1 SNM with NAC Extender
Model 310
1K EOLR
Model 310
1K EOLR
1 AUX PWR
2 GND
3 Alarm In
4 Bell PWR In
5 Bell Out +
6 Bell Out -
7 Bell Trouble
8 Bell Trouble
Normal/Silence Switch
1 AUX PWR
2 GND
3 Alarm In
4 Bell PWR In
5 Bell Out +
6 Bell Out -
7 Bell Trouble
8 Bell Trouble
Normal/Silence Switch
Potter Model SNM
45mA @ 12 VDC
The SNM Notification
Appliance Circuit
Module in alarm draws
up to 31mA through its
Terminal 3 Alarm Input
and 45mA from its
Terminal 1 Aux Power
Input.
See the SNM Installation
Sheet
8900111
To panel terminal 7
To panel zone
To panel terminal 10 To panel zone
To panel alarm output
The Bell Output programming for Fire type zones must be set to Steady
Potter PSN or other UL Listed
power supply
See installation sheet for detailed
connection instructions
Note: Terminals 3 and 4
jumper together to
supply Bell Power from
the panel
Wiring Diagrams