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Main fire alarm module terminal connections – Potter PFC-5000 Series User Manual

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Main Fire Alarm Module Terminal Connections

Wire devices to terminals as shown in Figure 11 below. See Wiring Tables on page 20 for wiring instructions, Appendix A on
page 33 for compatible devices, and Appendix C on page 37 for specifi cations.

Do not exceed power supply ratings:
PFC-5002, PFC-5004, total current for NAC circuits is
2A max.
PFC-5004E/PFC-5008, total current for NAC circuits is 5A
max.

Figure 11A: Main Fire Alarm Module Terminal Connections

AUX.

POWER NEGATIVE FOR

REMOTE ANNUNCIATORS

NO

NC

COM

TROUBLE
REL AY

NO

NC

COM

SUPV.
REL AY

NO

NC

ALARM
REL AY

MUST BE
CONNECTED

TO

A

LISTED POWER
LIMITED SOURCE
OF SUPPLY

COMMON TROUBLE
CON TACTS
28 VDC,

1 AMP

RESISTIVE LOAD

AUXILIARY

COMMON

SUPERVISORY
CON TACTS
28 VDC,

1 AMP

RESISTIVE LOAD

AUXILIARY

COMMON

ALARM CON TACTS
28 VDC,

1 AMP

RESISTIVE LOAD

NAC2+ (Z)

NAC2- (Z)

NAC2-

(Y/Z)

SUPERVISED NAC #2
(POWER LIMITED),

REGULATED 24FWR

NAC1+ (Z)

CLASS A
STYLE Z
WIRING

NAC1-

(Y/Z)

NAC1+

(Y/Z)

NAC2+

(Y/Z)

NAC1- (Z)

EXAMPLES OF BOTH CLASS A AND B WIRING ARE SHOWN

,

BUT

ONLY ONE CLASS OF WIRING M AY BE USED IN ANY INSTALLATION.

SUPERVISED NAC #1
(POWER LIMITED), REGUL ATED 24FWR

BELL,

HORN,

OR STROBE

Legend:

See Appendix A for

compatible devices.

3.9K 1/2W ELR LISTED S5434
MODEL MP-300 MANUFACTURED
BY MIRCOM

COM

COM-

CLASS B /
STYLE Y
WIRING

When wiring devices, please keep in mind the following:

All terminals are shown from the back of the main fi re alarm board assembly (pointing towards the rear of the enclosure).

All power limited circuits must use type FPL, FPLR, or FPLP power limited cable.

Initiating circuits are fully supervised and rated for 26 VDC, 3 ma standby, 2.2 Vp-p ripple, 50 mA max. alarm. They may

be confi gured as required. Maximum loop resistance is 100 ohms, 50 ohms per side.
NAC circuits are fully supervised and rated for 24 FWR 1.7 amp max. each. They must be wired as shown in the wiring

tables on page 20.
On the PFC-5004 & PFC-5004E/PFC-5008, the auxiliary common supervisory relay contacts will act as a second set of

common alarm contacts if there are no initiating circuits set as supervisory.
Initiating circuits must be all either Style B or D. If Style D is selected, cut the number of circuits in half.