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Powered loop interface
Wiring | en
7
Bosch Security Systems, Inc.
Installation instructions
2018.06 | 4.0 | F.01U.036.340
–
Either the high (+) side of the loop or the low (-) side of the loop is shorted to ground.
For control panels with Ground Fault Detect, a short to ground causes a ground fault
condition when Ground Fault Detect is enabled.
When programming for fire applications, refer to the corresponding control panel operation
and installation guide.
5.2
Wiring for 12
VDC power supplied by the control panel
5.2.1
Wiring a B Series panel
Figure
5.2: Wiring two-wire loops powered by a B Series panel
1 Power‑limited, supervised switched
auxiliary power from Output A (NC) of
the control panel
1
2 Supervised connection to Zone B
power from an on‑board point of the
panel
3 Supervised connection to Zone A
power from an on‑board point of the
panel
4 Connection with terminal 5 to only one
common on the panel
5 Connection with terminal 4 to only one
common on the panel
6 Power-limited, supervised negative to
B loop detectors (see
Wiring sensor
loops, page 6
)
7 Power-limited, supervised negative to
A loop detectors (see
Wiring sensor
loops, page 6
)
8 Power-limited, supervised positive to B
loop detectors (see
Wiring sensor
loops, page 6
)
9 Power-limited, supervised positive to A
loop detectors (see
Wiring sensor
loops, page 6
)
10 Earth ground
11 Output A jumper (under cover) set for auxiliary power applications (AUX PWR)
1
You can also use output B or C in conjunction with a D133 or D134 relay module.
Содержание D125B
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