Electrical ratings:
Supervisory 18-24.5 VDC
4mA max
Alarm 18-24.5 VDC
45mA max
Zone Resistance 35 ohms total
Max Ripple 500mV
Electrical connections:
There are three basic connections to
the CZM-1B6 as follows:
CZM-1B6 Connections and Ratings
4 - 19
CZM-1B6 Class A (Style D) Wiring
CZM-1B6 Class B (Style B) Wiring
Initiating Devices
The CZM-1B6 supports one zone of
initiating devices in either Class A (Style
D) or Class B (Style B). The initiating
devices are connected to terminals 5-8
on the CZM-1B6 terminal block.
Only the devices listed in Appendix A,
Table 1 - Conventional Detectors:
Compatible With CZM-1B6 on page
A-1 may be used. Use up to 15 detec-
tors, any combination of those listed.
Only one PB-1191, and no additional
devices, can be connected to a
CZM-1B6. Detector operated accesso-
ries cannot be used with the CZM-1B6.
The model numbers listed are the UL
compatibility identifiers.
NOTES
1. Power limited to
NFPA 70 per NEC 760.
2. Minimum wire size:
18 AWG.
3. Maximum resistance:
35 ohms total.
4. Each detector or group
of detectors, requires a
two-wire circuit of
thermoplastic fixture
wire enclosed in
conduit or limited
energy shielded cable
without conduit, if
permitted by local
building codes.
5. End of line device:
4.7K, ¼W,
P/N 140-820188.
6. Either circuit may be
wired Class A (Style D)
or Class B (Style B).
7. 15 devices maximum
per circuit.
8. Initiating circuit is
supervised.
1
2
3
4
5
6 7 8 9
+
-
-
+
+
-
-
+
+
-
-
+
EARTH
ANALOG LOOP
POWER
STYLE D
(CLASS A)
EOL
+
-- --
+++
1
2
3
4
5
6 7 8 9
+
-
-
+
+
-
-
+
+
-
-
+
EARTH
ANALOG LOOP
POWER
STYLE B
(CLASS B)
+
-- --
+++
EOL
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