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9.0 Off-Board Points
9.1
Point (Zonex) Bus: D7212GV2 Terminals
9.1.1
POPIT Modules
The D7212GV2 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 D7212GV2 can monitor to 40. Each off-board point requires
a POPIT Module.
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
D7212G
Terminals 3 and 9
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 D7212GV2 Program Entry Guide (P/N: F01U003804) for programming options.
9.1.4
Extra Point Events
Extra Point events are generated when a POPIT connected to the data expansion bus does not have an assigned
Point Index. Table 11 shows when an Extra Point event is or is not generated. Table 12 on page 32 shows
additional error conditions that can occur for the off-board points.
Table 11:
Extra Point Events
A POPIT connected to the data
expansion bus does not have an
assigned Point Index and:
Data expansion bus is disconnected
Data expansion bus restores to normal
condition after an open condition
Point input changes status from normal
to open or shorted
During a Service Walk Test, the point
input changes status from normal to
open or shorted
∗
The Service Walk Test never shows the electrical state of a point as "Extra."
Bosch Security Systems, Inc. | 5/05 | F01U003805B
D7212GV2 | Operation and Installation Guide | 9.0
Data
Terminals 27 and 28
Extra Point event?
Additional Information
No
Keypad does not annunciate or display a trouble condition.
•
Yes
•
No
Keypad does not annunciate or display a trouble condition.
∗
•
Yes
•
Keypad annunciates and displays a trouble condition
Extra Point is logged and might be programmed to
send reports to the central station or to an on-site
printer.
Keypad annunciates and displays a trouble condition
Extra Point is logged and might be programmed to
send reports to the central station or to an on-site
printer.
Off-Board Points
31
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