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D7212GV2 | Operation and Installation Guide | 9.0
Table 12:
Off-Board Point Errors
Error Condition
+/- leg of the data expansion bus has a
short-circuit to earth ground, with Ground
Fault Detect enabled
+/- leg of the data expansion bus is
disconnected
Data expansion bus has a short-circuit
+/- leg of the data expansion bus has a
short-circuit to the Common terminal on
the D7212G
Terminal 28 has a short-circuit to a
Common terminal
Terminal 27 has a short-circuit to a
Common terminal
Terminals 27 and 28 have a short-circuit
together
9.1.5
D7212GV2 Responses to Missing Point
Conditions
The D7212GV2 responds 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, D8127 and D9127 POPIT
Modules
D8127 and D9127 POPITs use the D8125 POPEX
Module to report to the control panel. Points 9 to 40
connect to the POPEX Module. The control panel
annunciates activity only for each POPIT, not for each
detection device connected to the sensor loop.
There are two versions of the D8127 and D9127
Modules. Both module enclosures are made of UL
Listed fire resistant material. D8127T and D9127T
Modules contain tamper switches. D8127U and
D9127U Modules include untampered covers. Unless
the module is mounted in a tampered enclosure, UL
requires D8127T and D9127T Modules for certificated
accounts.
32
Off-Board Points
Result
Ground Fault event
All POPITs beyond the
disconnection send Missing
report
• All POPITs send Missing
report
• Pt Bus Trouble event
• All POPITs send Missing
report
• Pt Bus Trouble event
No Pt Bus Trouble event occurs
• Pt Bus Trouble event
• Keypad displays:
SERVC ZONEX 1
• Pt Bus Trouble event
• Keypad displays:
SERVC ZONEX 1
Listings
The D8125 POPEX and the D8127 and D9127 POPIT
Modules are UL Listed for Local or Police Connected
Burglar Alarm, Central Station Burglar Alarm,
Household Burglar Alarm, Household Fire, and
Electrically Actuated Transmitter Applications.
Refer to the D7212GV2 Approved Applications Compliance
Guide (P/N: F01U003806) to determine the required
equipment and enclosures for the application.
Bosch Security Systems, Inc. | 5/05 | F01U003805B
Additional Information
When the data expansion bus restores, Pt
Bus Restore event occurs. If any POPIT is
connected to the data expansion bus
without an assigned Point Index, an Extra
Point event occurs.
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