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D9412GV3/D7412GV3 | Operation and Installation Guide | 3.0 Overview
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Bosch Security Systems, Inc. | 10/10 | F01U143070-03 13
3.3.7 Keypads
Up to 32 unsupervised keypads can be connected to
the system. The available power, number of
supervised keypads, and number of areas covered
affect the total number of keypads that can be
connected.
The system can supervise up to sixteen D1255
keypads (all models), and up to eight D1260 keypads
(all models). The control panel sends a Serial Device
Trouble Report, SDI FAILURE in the Modem IIIa
2
format or Expansion Module Failure (333) in Contact
ID format, if it loses communication with a supervised
keypad.
More than 16 keypads can be added, but the system
can only supervise up to 16 keypads. Table 4 on page
13 shows the keypads that are compatible with the
D9412GV3 and D7412GV3 Control Panels. Refer to
Keypad in the D9412GV3/D7412GV3 Program Entry
Guide (P/N: F01U170807) for complete details on
programming keypad options.
UL requires all Fire System keypads to be
supervised.
Table 4: Compatible Keypads
Model Display Application
D1255/
D1255B/D
1255RB
16-character
alphanumeric
Fire/Burglary/Access
D1256/
D1256RB
16-character
alphanumeric
Fire
D1257/
D1257RB
16-character
alphanumeric
Fire
D1260/
D1260B
4-line by 20-
character
Fire/Burglary
D720/
D720B
8 LED Fire/Burglary
3.3.8 Keyswitch
Maintained or momentary closure devices such as
keyswitches allow any of the available areas to be
armed or disarmed. Point programming determines
the loop responses and which area a keyswitch
controls.
3.3.9 Access Control
The D9412GV3 can control eight access doors (each
requiring the optional D9210B Wiegand Control
Interface Module) with up to 996 uniquely identified
cards or tokens. The D7412GV3 can control two
access doors with up to 396 uniquely identified cards
or tokens. Any of the following can grant access:
Wiegand-style access control device (card
reader) connected to the D9210B Access Control
Interface Module
Request to enter (RTE) or request to exit (REX)
input
Unlock command on a keypad
The access control features of the D9412GV3 and
D7412GV3 can deny access during armed periods.
The control panel can also grant access only to
certain authorized users depending on whether the
area is master armed, perimeter armed, or disarmed.
Programming for automatic disarming when
designated authorized users are granted access is
also possible.
3.3.10 Event Memory
The control panel retains point alarm and trouble
events in memory for each area. A D1255 (any
model) or a D1260 (any model) can be used to view
event memory by using COMMAND 40. The control
panel clears the previous events for an area from the
event memory when the area is armed.
3.3.11 Event Log
The system stores 800 events from all areas in its
event log. For example, the system adds at least two
items to the log each time an area is armed or
disarmed, the open (or close) event that also contains
the previous arming state.
All events can be stored even if the control panel
does not send a report for them. The log can be
viewed at a keypad, printed locally using the D9131A
Parallel Printer Interface Module and a parallel printer,
or uploaded using Remote Programming Software
(RPS).
For a list of the log events, refer to the appendix in the
user’s guide for the keypad.
3.3.12 Ground Fault Detection
The Earth Ground Terminal on the control panels is
electrically isolated from all other terminals to allow
the D9412GV3 and the D7412GV3 to detect ground
fault conditions. A Ground Fault Detect Enable switch
(S4) is located just under Terminal 10, Earth Ground,
on the control panel. Refer to Section 4.5.2 Ground
Fault Detect Enable on page 15 for information on
operating this function.