Bosch D192G - Page 12

12 en | Wiring Notification Appliance Circuit Module
2020.05 | 04 | 4998122260 Installation manual Bosch Security Systems, Inc.
5.1.4 Wiring separate loops with 12VDC or 24VDC power supplied by an
external power supply
This wiring scheme allows two separate strings of modules (NAC loops) triggered by separate
programmed alarm outputs.
Figure5.4: Wiring separate module loops to a GSeries panel with power supplied by an external power supply
1 D192G modules on separate NAC
loops
8 Negative (-) connection from external
power supply and module COM to
panel’s COMMON (not to earth
ground)
2 Polarized notification devices 9 Positive (+) connection between
module’s EXT PWR IN terminal and the
power supply
3 560Ω, 2W EOL resistors (P/
N:F01U008725)
10 Conduit required for wiring between
external power supply and control
panel enclosure
4 UL Listed 12VDC or 24VDC regulated,
power‑limited auxiliary power supply
11 Connection to Relay B programmed
output to ALRM TRG of the other
module
5 GSeries control panel 12 Connection between one module’s
SUPV ZONE terminal and an on‑board
point on the control panel
6 Positive (+) connection from panel’s
AUX POWER to the AUX PWR IN
terminals of the modules
13 Connection between the other
module’s SUPV ZONE terminal and an
on‑board point on the control panel
7 Connection to Relay A programmed
output to ALRM TRG of one module
14 1kΩ EOL resistor (P/N:F01U011298)