Contemporary Research TD960801-0MC - Manual (Page 10)

TD960801-0MC
6
The EXTEND-A-BUS has been tested to EN50082 Generic
Immunity Standard–Industrial Environment. This standard
identifies a series of tests requiring the equipment to perform to
a particular level during or after the execution of the tests. The
three classes of performance are defined by CCSI as follows:
Class A - Normal operation, however, occasional
reconfigurations may occur or throughput may be reduced due
to an error recovery algorithm by the ARCNET data link level
protocol.
Class B - Throughput reduced to zero and continuous
reconfigurations occur. Normal operation resumed after
offending signal removed.
Class C - Complete loss of function. Unit resets and normal
operation restored without human intervention.
At no time did the EXTEND-A-BUS fail to return to normal
operation or become unsafe during the execution of these tests.
A copy of the Declaration of Conformity is in the appendix.
2.3 Mounting the EXTEND-A-BUS
The EXTEND-A-BUS is intended for mounting onto a vertical
panel within an industrial control enclosure. Two #8 screws can
be used for mounting the EXTEND-A-BUS in a vertical
orientation. Refer to the mechanical specifications for details.
To mount the EXTEND-A-BUS onto a DIN rail, an optional
DIN rail mounting clip (AI-DIN) must be purchased and
installed on the rear of the EXTEND-A-BUS. Once the clip is
mounted to the EXTEND-A-BUS, the EXTEND-A-BUS can be
snapped onto the DIN rail.
2.4 Powering the EXTEND-A-BUS
The EXTEND-A-BUS requires either low voltage AC or DC
power in order to operate. Consult the specifications for power
requirements. Power is provided to a four pin removable keyed