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ST950 Plus+ User Manual
ST950 Plus+ User Manual
Page 54 of 176
667/HE/53000/000
Issue 2
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3.14.3
Loop Detector Power
The power for the Loop Detector cards is taken from the 24VDC PSU. See Figure 27 for the power
connections on the Intelligent Detector Backplane.
If additional Intelligent Detector Backplanes are required, then the 24VDC can be daisy chained
from the first IDB.
For the purposes of loading the 24VDC PSU has 1.5A available for additional peripherals, outside
of running the ST950 CPU. This would be sufficient for up to 6 intelligent detector backplanes and
1 I/O Card.
Figure 27
–
SK6 and SK7 Connections for Loop Detector Power
3.14.4
Parts
Intelligent Detector Backplane - 667/1/32910/950
24V PSU to IDB Wiring Loom - 667/1/53047/000
SK6
SK7
OUT
IN
SK6
SK7
OUT
IN