Bosch D9412GV2 User Manual download pdf (Page 34)

D9412GV2/D7412GV2 | Operation and Installation Guide | 9.0 Off-Board Points

34 Bosch Security Systems, Inc. | 5/05 | F01U003641B

9.0 Off-Board Points

9.1 Point (Zonex) Bus: D9412GV2 Terminals and D7412GV2 Terminals

9.1.1 POPIT Modules

The D9412GV2 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 D9412GV2 can monitor to 246. The D7412GV2

provides up to 67 off-board points, bringing the total number of points the D7412GV2 monitors to 75. 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 11).

Table 11: POPEX Modules

Model Power Data

D9412G Terminals 23 and 24 Terminals 25 and 26

Terminals 27 and 28

D7412G Terminals 3 and 9 Terminals 22 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 D9412GV2/D7412GV2 Program Entry Guide (P/N: F01U003636) 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 12 shows when an Extra Point event is or is not generated. Table 13 on page 35 shows

additional error conditions that can occur for the off-board points.

Table 12: Extra Point Events

A POPIT connected to the data

expansion bus does not have an

assigned Point Index and: Extra Point event? Additional Information

Data expansion bus is disconnected No Keypad does not annunciate or display a trouble condition.

Data expansion bus restores to normal

condition after an open 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.

Point input changes status from normal

to open or shorted

No Keypad does not annunciate or display a trouble condition.

During a Service Walk Test, the point

input changes status from normal to

open or shorted

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.

∗

The Service Walk Test never shows the electrical state of a point as “Extra.”

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