
T400 Controller Facilities Manual
667/EB/20200/000 Page A-3 Issue 9
Appendix APPENDIX A) .2) Using 24v 2A Internal Supply - Cable limitations
Table APPENDIX A) -2 to Table APPENDIX A) -5 indicate the permissible cable
lengths and whether 2 parallel cores are required for various detectors.
S = Single conductor out and return
P = Parallel conductors out and return
Assumes 1mm
2
cable.
(distances quoted are the ‘Maximum distance from the controller’)
Table APPENDIX A) -2) Number of Detector Boards (Siemens & Microsense) in
External Housing(s) Using a Common Cable (220mA per card)
Beehives:123456
Detectors:123456789101112
100m SSSSPPPP
125m SSSPPP
150m SSPPP
175m SSPP
200m SSPP
225m S S P
250m S P P
Table APPENDIX A) -3) Number of Detector Boards (Sarasota MCE28Z) in
External Housing(s) Using a Common Cable (370mA per card)
Beehives:123456
Detectors:123456789101112
100m S P
125m P
150m P
175m P
200m P
225m P
250m
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