2.10.5 MSC (MULTI-SET COMMUNICATIONS) LINK
NOTE: For further details of module configuration, refer to DSE Publication: 057-257
DSE8660 MKII Configuration Suite PC Software Manual.
NOTE: A termination resistor MUST be fitted to the first and last unit on the MSC link. For
connection details, refer to section entitled Typical Arrangement of MSC Link elsewhere in this
document.
NOTE: DSE recommend Belden 9841 (or equivalent) cable for MSC communication. This
is rated to a maximum cable length of 250 m. DSE Stock Belden 9841 cable, DSE Part Number:
016-030.
NOTE: By default the MSC link of the DSE8xxx modules are not compatible with the
DSE55xx/DSE75xx modules. For details on enabling compatibility, refer to section entitled
MSC Compatibility elsewhere in this document.
The MSC link is the interconnection cable between all DSE synchronising controllers and must not be
connected to any device other than DSE equipment designed for connection to the MSC link.
Cable Type Two core screened and shielded twisted pair
Cable Characteristics
120 Ω
Low capacitance
Recommended Cable
Belden 9841
Belden 9271
Maximum Cable
Length
NOTE: For additional length, the DSE124 CAN & MSC Extender is
available. For more information, refer to DSE Publication: 057-116
DSE124 Operator Manual
250 m (¾ mile) when using Belden 9841 or direct equivalent.
125 m (656 yards) when using Belden 9271 or direct equivalent.
MSC Topology “Daisy Chain” Bus with no stubs (spurs)
MSC Termination
120 Ω.
Must be fitted externally to the first and last module.
Maximum DSE8xxx
and DSE8xxx MKII
Modules
NOTE: If any number of DSE8x60 are on the MSC link, a maximum
of 2x DSE8x80 can be used. For each DSE8x80 used, the number of
available DSE8x60s to be used reduces.
Total 40 devices made up of DSE8x10 (up to 32), DSE8x60 (up to 16) and
DSE8x80 (up to 16)
This gives the possibility of:
• 32 generators (DSE8x10) and 8 synchronising transfers (DSE8x60)
• 32 generators (DSE8x10) and 8 generator bus couplers (DSE8x80)
• 24 generators (DSE8x10) and 16 synchronising transfers (DSE8x60)
• 24 generators (DSE8x10) and 16 generator bus couplers (DSE8x80)
• 32 generators (DSE8x10), 14 synchronising transfers (DSE8x60)
and 2 generator bus couplers (DSE8x80)
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