Installation of Optional Modules
Installation
GF505 & GF510 Series PN 53164:A 3/26/2007
33
2.7.1.2 Wiring NACs and IDCs for Class A
Wire the Style Z (Class A) Notification Appliance Circuits using TB5 of the GF505/GF510 and
TB2 of the CAC-5X module. Wire the Style D (Class A) Initiating Device Circuits using TB4
of the GF505/GF510 and TB1 of the CAC-5X. Note that the wiring will be identical when
using TB7 NAC and TB6 IDC of the GF510. Make certain to observe polarity when
connecting the devices to the circuits. The B+ and A+ terminals must comprise the feed and
return for the positive side of a device and the B- and A- terminals must comprise the feed and
return for the negative side of a device. To configure any of the zones for Class B when the
CAC-5X is installed, simply wire to the B+ and B- input on the FACP terminal(s) and install the
End-of-Line Resistor after the last device on the circuit. Do not wire to the corresponding A+
and A- terminals on the CAC-5X module.
Figure 2.15 Wiring NACs and IDCs for Class A Operation
CAC-5X Class A Converter Module
GF505
Circuit Board
Class B (Style B) IDC - 4.7 K
Ω
½ watt ELR resistor
P/N:71252 (supervised and power-limited)
Dummy load all unused
circuits - 4.7 K
Ω
½ watt resistor
(P/N: 71245)
Polarized
Bell
Circuit polarities
shown in alarm
condition
Class A (Style Z) NAC
(supervised and power-limited)
Class A (Style D) IDC
(supervised and power-limited)
Polarized
Strobe
Polarized
Horn
Smoke
Smoke
Pull Station
Pull Station
Heat
Heat
ms
10udc
lassa.cdr
B+ B-
B+ B-
A+ A-
A+ A-
A+ A- A+ A- A+ A- A+ A- A+ A-
B+ B- B+ B- B+ B- B+ B- B+ B-
Large gauge wire should be looped through
bead at least once as illustrated. Smaller
gauge wire can be looped more often.
Ferrite Bead in open position
Ferrite Bead in closed position
2550f
err.c
d
r
Ferrite Bead
P/N 29150)