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10.4
Installation
–
+
Line module
Control unit
–
+
11
Commissioning
12
Fire & Security Products
Siemens Building Technologies Group
The installation is executed with twisted wire pairs, from base to base. Loop and
stub lines as well as T–branches are admissible. Normally no shielded wiring is re-
quired.
Up to 64 DOTE1152A detectors may be connected to a D-bus K1151A (E3M071).
Option: Loop line
DB1151A
Auxiliary terminal
–
Fig. 5
Connection diagram
To prevent unnecessary soiling during the construction phase, the detectors should
be inserted into the bases just before the system is put into service.
Each PolyRex DOTE1152 is connected in parallel to the two–wire detector bus. The
addresses of the individual detectors are determined by the order in which the detec-
tors are inserted or checked with the detector tester, or by entering the individual de-
tector identification numbers.
The reaction to CO gas can be tested with the CO detector tester DZE1152, howe-
ver, it cannot be used for the address allocation.
Due to the identification module integrated in the base, detectors can be swapped as
desired after they have been put into service and addressed. Based on this identifi-
cation module the control unit automatically reestablishes the correct assignment
with the correct algorithm. Each base identification module is factory programmed
with its own, unique serial number.
If the swapped detectors are of a different type, an error message is signalled.
DB1151A
DB1151A
+
DJ1191/92/93
DJ1191/92/93
DB1151A
DB1151A
–
+
e4070e
10.2002
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