Class b (style a) fire zones – Potter PFC-7500 Series User Manual
Page 15
11
11.1
Description
Terminals 15 to 22 are the Class B (Style A) fire zones on the PFC-7500 Series panels. These zones are suitable for
connecting powered or non-powered fire devices. For programming purposes, these zones are designated 2 to 5. The
maximum line impedance is 100 Ohms. The zone configurations 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 Series 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 identifier 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 Series 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 Series fire 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