Installation guide

Extending the Island Bus
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Advantys STB
Bus Extension
Cables
Advantys STB bus extension cables are specially designed cables in the IEEE 1394
style. They are used to carry the island bus to extension segments of STB I/O and
to preferred modules.
Advantys STB bus extension cables are available in five lengths:
Each cable has IEEE 1394-style connectors on each end. The cable will transmit the
following signals:
island bus communications between the extension I/O and the NIM
the island bus address line
the return signal
The cable does not transmit the 5 VDC logic signal to the next segment or preferred
device.
An Advantys STB bus extension cable may be run:
from an EOS module at the end of one segment to a BOS module at the
beginning of an extension segment
from an EOS module at the end of one segment to a preferred device
from one preferred device to another preferred device
from a preferred device to BOS module at the beginning of an extension segment
The Beginning-
of-segment
Module
If you are extending the island bus to another segment of Advantys STB Island I/O,
the extension segment begins with an STB XBE 1200 BOS module in the first
(leftmost) location. The BOS module is followed immediately by a PDM, then one or
more Advantys STB Island I/O modules.
An STB XBE 1200 BOS module has an on-board 24-to-5 VDC power supply. It must
be connected to a 24 VDC logic power source. You may use the same power supply
that supports the NIM or an independent 24 VDC supply. See Overview, p. 14.
Note: Advantys STB bus extension cables are not used to extend the island bus to
standard CANopen devices.
Model Cable Length
STB XCA 1001 0.3 m (1 ft)
STB XCA 1002 1.0 m (3.3 ft)
STB XCA 1003 4.5 m (14.8 ft)
STB XCA 1004 10.0 m (32.8 ft)
STB XCA 1006 14.0 m (45.9 ft)