ST950S Plus+ Installation and Commissioning Manual
Figure 23. Correct Insertion of SD Card
SD card partially inserted and fully inserted.
3.11. Gemini3 (Stratos Outstation)
For information regarding the Gemini3 equipment, see:
667/HB/52250/000 - Stratos Outstation Handbook
3.12. Panel Mounted I/O Cards
3.12.1. Overview
The need to use I/O cards in a Plus
+
system is much reduced since most I/O functionality is performed
by the Nodes directly. However, the standard ST950 I/O cards are supported for cases where centrally
located I/O is required, for example to support a free standing OTU or MOVA unit.
The panel mounted I/O Cards are mounted on the rear panel of the controller cabinet and allow direct
termination of street cabling without resorting to the use of additional terminal blocks and soft wire
conversion kits.
3.12.2. Panel Mounted I/O Cards
The standard I/O card provides a rugged interface for up to 24 TOPAS 2523 compliant digital inputs
and up to 16 TOPAS 2523 compliant changeover outputs.
A sub-equipped variant of this card is also available, fitted with only 4 changeover outputs. If the IC4
Configuration requires the 24 in / 4 out variant but one is not available, then a 24 in / 16 out card can be
fitted in its place.
The I/O card connects to the CPU Card or previous I/O card via the GSPI interface cable through which
the card also obtains its power supply.
Important:
The IO card is safety-protected by a fuse. Situated beneath the metal cover plate. Should the
fuse fail, the card will indicate a major fault and the card should be replaced. Do not replace the
fuse as the card may have been damaged and must be replaced.
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