Bosch D9412GV4 Installation And System Reference Manual page 59

D9412GV4/D7412GV4 v2.03 | Installation and System Reference Guide | 9.0 Off-Board Points
.
Table 17: Extra Point Events
An enabled point 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."
Table 18: 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 control panel
Terminal 26, 28, or 94 has a short
circuit to a Common terminal
Terminal 25, 27, or 94 has a short
circuit to a Common terminal
Terminals 27 and 28 have a short
circuit together
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Extra Point
event? Additional Information
No Keypad does not annunciate or display a trouble
condition.
Keypad annunciates and displays a trouble
Yes
condition
Extra Point is logged and might be programmed to
send reports to the central station or to an on-site
printer.
No Keypad does not annunciate or display a trouble
condition.

Keypad annunciates and displays a trouble
Yes
condition
Extra Point is logged and might be programmed to
send reports to the central station or to an on-site
printer.
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
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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