System Sensor B524BI User Manual
Page 3
D450-15-00
3
I56-725-04
(+)
(+)
(–)
(–)
(+)
(–)
(+)
(+)
(–)
(+)
(–)
(–)
(+)
(–)
(+)
3 (+)
2 (–)
2 (–)
1 (+)
2 (–)
1 (+)
3 (+)
2 (–)
(+)
(–)
(–)
(+)
(+)
(–)
(–)
(+)
(–)
2 (–)
2 (–)
3 (+)
1 (+)
2 (–)
2 (–)
3 (+)
1 (+)
ALL WIRING SHOWN IS SUPERVISED.
(+)
(–)
(+)
(–)
GROUPS OF ADDRESSABLE DEVICES ARE SEPARATED BY FAULT ISOLATOR
GROUP OF DEVICES IF A SHORT CIRCUIT OCCURS ON THE
SIGNALING LINE CIRCUIT WITHIN THAT GROUP.
A PAIR OF FAULT ISOLATOR BASES WILL DISCONNECT A
COMPATIBLE
CONTROL PANEL
BASES. ANY COMBINATION OF COMPATIBLE,
LISTED DEVICES MAY BE MIXED WITHIN A GROUP.
COMMUNICATION LINE
TWISTED PAIR
IS RECOMMENDED
1(+
) 2
(–
) 3
(+
) 4
(S
)
1(+
) 2
(–
) 3
(+
) 4
(S
)
1(+
) 2
(–
) 3
(+
) 4
(S
)
1(+
) 2
(–
) 3
(+
) 4
(S
)
Figure 3. Wiring diagram:
Wiring Instructions
Make wiring connections by stripping about 3/8" (10 mm)
of insulation from the wire end. Then, insert the wire into
the appropriate terminal and tighten the screw. Wire the
communication line in(+) to terminal 1. Insert both com-
munication line in(-) and communication line out(-) to ter-
minal 2. Wire communication line out(+) to terminal 3
(see Figures 2 and 3).
Terminal 4 is for shielded cable only (see Figures 2 and 3).
If shielded cable is used, the shield connection to and from
the detector must be continuous by using wire nuts, crimp-
ing, or soldering to ensure a reliable connection. If shielded
cable is NOT used, leave terminal 4 in the screwed-down
position.
A label is affixed to the base for recording the zone, ad-
dress, and type of detector being installed at the base loca-
tion. This information is useful for setting the detector head
address and for verification of the sensor type required for
that location.
Once all detector bases have been wired and mounted, and
the loop wiring has been checked, the detector heads may
be installed in the bases.
Tamper-resist Feature
Note:
Do not use the tamper-resist feature if the removal
tool is to be used.
This detector base includes a tamper-resist feature that pre-
vents its removal from the base without the use of a tool.
To activate this feature, break the tab from the detector
base as shown in Figure 4A (see Page 4). Then, install the
detector.
To remove the detector from the base once the tamper-re-
sist feature has been activated, insert a small-bladed screw-
driver into the slot in the side of the base and push the
plastic lever away from the detector head (see Figure 4B,
page 4). This allows the detector to be rotated counter-
clockwise for removal.
Note:
Head removal after the tamper-resist feature has
been activated requires removal of the decorative
ring.
The tamper-resist feature can be defeated by breaking and
removing the plastic lever from the base. However, this pre-
vents the feature from being used again.
A78-2287-06