IGD 2-Wire Systems, Руководство по установке

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Booster Modules
LPG
0-100%LEL
SN:20235-1-1 ADD:4110
GAS DETECTOR
LPG
0-100%LEL
SN:20235-1-1 ADD:4110
GAS DETECTOR
Controller in Supervisors Office
ATEX Zoned Area
Laboratory
Gas Bottle Store
Addressable
2-Wire
Mains Power
Mains Power
L1 L1 L2 L2
OUT
IN
Screen or Drain Wire
Cable Highway
Power boosters are used where the control panel cannot supply enough power
for the installed cable system. This may be due to the cable size being too small
resulting in a large volt drop over the cable run or that there are a large number
of devices drawing power. Booster modules are mains powered and can have an
internal battery backup if required. There are IN and OUT connections such that
the booster can be located at the end or part way down a cable run. Typically the
booster should be located at the point that the cable voltage drops to 22V DC or
if this is not known and boosters are planned from the start then located at the
end of a cable run.
Power Booster