EN | 33
D9412G/D7412G | Operation & Installation Guide |
Bosch Security Systems | 10/03 | 43488E
7.0 On-Board Points
7.1 Description Terminals
The panel provides eight on-board points. Each point
functions independently and does not interfere with the
operation of the others. The panel monitors the sensor
loops for normal, shorted, or open conditions between an
input terminal (11, 13, 14, 16, 17, 19, 20, or 22) and any
of the point common terminals (12, 15, 18, and 21).
Programming for the point determines how the panel
responds to those conditions. See the D9412G/D7412G
Program Entry Guide for point programming options. The
panel also monitors the sensor loops for ground fault
conditions if S4 is latched (ground fault detect enabled).
7.2 Point Sensor Loops
When wiring the on-board points (see Figure 12), install a
1 kΩ resistor at the far end of the sensor loop to provide
a reference for supervision. Dry-contact sensing devices
can be connected in series (normally-closed) and/or in
parallel (normally-open) to any of these loops.
7.0 On-Board Points
The number of normally-open and/or normally-closed
detection devices each sensor loop can supervise is
limited only by the resistance on the loop. The total
resistance for the wire length and contacts, minus the
end-of-line (EOL) resistor, must not exceed 100 Ω.
7.3 Point Parameters
The condition of on-board Points 1 to 8 is determined
by measuring the voltage across the point input terminal
and one of the common terminals. The sensor loops
must be connected and the 1 kΩ EOL resistor in place.
1 k
Ω
1
4
8
5
6
2
3
2
3
2
3
9
10
7
1 - 100
Ω
maximum
2 - Point input terminal
3 - Common
4 - Normally-Closed Contacts (NCC)
5 - Nomrally-Open Contacts (NOC)
6 - Combination: Normally-Open Contacts and
Normally-Closed Contacts (NONC)
7 - Bosch Security Systems’ D105F or F105BL
(UL Listed burglar applications EOL resistor)
8 - Brown
9 - Black
10 - Red
Figure 12: On-board Point Sensor Loop WIring
Table 11: Point Parameters
Loop Voltage Range
Open Greater than 3.7 VDC, but less than 5.0 VDC.
Normal Greater than 2.0 VDC, but less than 3.0 VDC.
Shorted Greater than 0.0 VDC, but less than 1.3 VDC.
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