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SAMSUNG DCS 70
INSTALLATION MANUAL
Chapter Four : Installing Cards In The DCS 70 KSU
Unpack and inspect each card for physical damage before installation. Contact the supplier if
any damage to the card is detected. Do not attempt to install a damaged card.
WARNING. The Samsung DCS 70 system contains many
static sensitive components. To reduce the incidence of
premature equipment failure, observe the following
•
Always discharge static from yourself before handling any Printed Board Assemblies
(PBA's) and wear an anti-static wrist strap connected to the KSU earth lug.
•
Always handle boards by the edges.
•
Never touch PBA tracks or connectors. Contaminants introduced by fingers can cause
corrosion and high resistance connections.
•
Never touch or straighten components, especially the ceramic sub-assemblies. They
are physically delicate and finger pressure can fracture component leads (even if the
leads do not actually break).
•
To protect PBAs against physical damage and damage due to static discharge, always
wrap them in an anti-static bag and replace them in the packaging provided with the
new item.
Power must be switched OFF before any cards are
KSU Motherboard
The DCS 70 motherboard provides 8 digital extension ports, each of which will support a
daughter board extension, one external MOH/BGM port (see Fig 4.1) one external page
interface, one general purpose dry contact, 3 universal expansion slots, a Memory card slot,
MISC card slot and a 2SLI slot.
Memory (MEM) Card
Insert the MEM card in the KSU slot labelled MEM (see Figure 4-1). Push firmly in the
middle of the MEM card to ensure that it is fully inserted into the backplane connector.
To prevent accidental damage to the MEM card, the connector on the backplane is positioned
to mate only with the MEM card. Other interface cards will not mate with this connector and
the MEM card will not mate with any other connector.
The MEM card has a switch labelled OFF or ON. (The switch connects/disconnects the
supercap to the MEM for backing up the RAM data).
precautions -
WARNING
removed or installed.
Page 4-1
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10
January, 2000
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