Installation Guide

D9412GV4/D7412GV4/D7212GV4 | Installation and Operation Guide | 9.0 Off-Board Points
Bosch Security Systems, Inc. | 3/12 | F01U266054-01 40
9.0 Off-Board Points
9.1 Zonex Buses
9.1.1 POPIT Modules
The D9412GV4 can use point of protection input
transponder (POPIT) modules to provide a
maximum of 238 off-board points, bringing the
total number of points the D9412GV4 can
monitor to 246. The D7412GV4 provides up to 67
off-board points, bringing the total number of
points the D7412GV4 monitors to 75. The
D7212GV4 can use point of protection input
transponder (POPIT) modules to provide a
maximum of 32 off-board points, bringing the
total number of points the D7212GV4 can
monitor to 40. Each off-board point requires a
POPIT Module.
The expansion bus can be shared
between fire and non-fire devices
where the POPIT module provides
data isolation between the input and
the bus connections.
9.1.2 POPEX Modules
POPITs connect to supervised two-wire data
expansion loops run from POPIT to POPIT
throughout the premises. Data expansion loops
connect to a D8125 Point of Protection Expander
(POPEX) Module. POPEX Modules have power
and data connections to the point bus on the
control panel (Table 10).
Table 10: POPEX Modules
Model Power Data
D9412GV4
Terminals 23 and
24
Terminals 25 and
26 or
Terminals 27 and
28
D7412GV4
,
D7212GV4
Terminals 23 and
24
Terminals 27 and
28
9.1.3 Missing Conditions
If a programmed POPIT is disconnected from the
expansion loop, a missing condition appears
immediately and the event is logged. The missing
condition might also be sent to a central station
or printed to an on-site printer, if programmed to
do so. Refer to the
D9412GV4/D7412GV4/D7212GV4 Program Entry
Guide (P/N: F01U218312) for programming
options.
9.1.4 Control Panel Responses to Missing Point
Conditions
The D9412GV4, D7412GV4 and D7212GV4
respond to missing point conditions based on the
point’s programming and the armed state of the
point’s area. For example, if an interior motion
detector point is missing during a disarmed state,
a Missing Trouble event is generated; however, if
the point is missing while the area is Master
Armed, a Missing Alarm event is generated. Non-
fire, 24-hour points always generate a Missing
Alarm event, whereas Fire points always generate
a Missing Fire Trouble event.
9.2 D8125 and D9127 POPIT Modules
D9127 POPITs use the D8125 POPEX Module to
report to the control panel. Each D8125 supports
up to 119 POPIT points. Connect two D8125
Modules to the D9412GV4 to bring the combined
total number of POPIT and on-board points to
246.
 Points 9 to 127 connect to the first POPEX
Module.
 Points 129 to 247 connect to the second
POPEX Module.
 The D9412GV4 reserves Points 128 and 248
for internal use.
The control panel annunciates activity only for
each POPIT, not for each detection device
connected to the sensor loop.