Key Management Systems Ltd
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Cable Requirements
Cabling requirements are based on a typical installation where all cable runs
terminate at the System Controller cabinet. It is extremely important to use high
quality cables throughout the installation to ensure consistent and reliable
functionality. KMS BUS data cabling must be Cat5, Cat5e or Cat6 with either solid or
stranded copper conductors. Cheaper Cat5 cabling using conductors made from
Copper Coated Aluminium (CCA) and Copper Coated Steel (CCS) must NOT be used
under any circumstances. Incorrect cabling will result in degraded system
performance and void all warranties.
It is the installer
’
s responsibility to comply with BS7671 IEE National Wiring
Regulations in the UK. Band 1 and Band 2 compliance should be adhered to. Low
voltage cabling should be separated from high voltage cabling to reduce the
possibility of noise and crosstalk on data transmission lines.
System components must have the appropriate cable type and size calculated by the
installer, including but not limited to locks, readers and loads being switched by
relays. This should take into consideration the cable length and current consumption
of the power sink at the end, i.e. magnet type locks may draw 500ma each so 1 Amp
should be allowed for - using a Cat5 cable would be inappropriate whereas a 1mm
copper flex is ideal.
Stranded cable is preferable to avoid strain placed on connectors.
