Specifications

RN: 5-95
RS3: Software Release Notes for P1 R4.2
Changes to RS3 Manuals
Separate system cabinet groups in a common area can be daisy
chained together using a 35mm
2
(2 AWG) intercabinet grounding
conductor, and connected to the grounding electrode system through a
single grounding electrode conductor ( F igure 1.3.2). Alternatively, each
cabinet group can have its own grounding electrode conductor to the
grounding electrode system. Multiple grounding electrode conductors
can attach at the sam e point on the grounding electrode system, or to
different points. Use caution when planning and implementing multiple
separate supplemental conductors to ground the equipment to the
grounding electrode system. It can result in additional noise from
impedance coupling. If a daisy chain connection results in a grounding
connection of more than 61 meters (200 feet), a direct connection to the
grounding electrode system should be considered for the cabinet group
at the end of the daisy chain.
SP: Chapter 7 (Multipoint I/O)
SP-7: Section 1 (Multipoint I/O Installation and System
Wiring)
Description: The following note was added after the third paragraph on
page 7-1-1.
NOTE: If the primary FIM fails and the secondary F IM takes over but
then fails, the redundant F IM should be replaced first. If this is not done
but redundant controllers are configured, it may take 5--30 seconds to
regain normal operation via a redundant controller switch. If redundant
controllers are not available, replacing both FIMs or moving one FIM to
the redundant slot will restore normal operation. If necessary, r ebooting
the controller will also restore normal operation.
Description: The two subsections on pages 7-1 -6 and 7-1-7 under
“Multipoint I/O F IM Redundancy and Online Replacement” were
rewritten to read as follows.
Multipoint I/O FIM Online Replacement
The online replacement operation is provided when one FIM and one
communication line is used. The F IM can be installed in either the “A” or
the “B” socket. T he other socket is available for an online replacement.
The redundancy jumper(s) m ust be set to normal to allow the online
replacement operation.
If the F IM fails in any way, a good FIM can be plugged into the empty
socket. Normally, the failed FIM red LED goes ON. The new FIM takes
over from the installed FIM in a few seconds. The failed FIM can be
removed for repair as soon as the new FIM green LED goes ON and
the yellow “Comm Active” LED (see note below) flashes.