Karel DS200, Technical Reference And Installation Manual

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* Since the last 5 slots of the DS200M exchange use full PCM, there is no need to leave the
next slot vacant in cases where the EX200 (1E1/0), EX200 (MGW2) modules are installed in
one of those slots.
After considering criteria such as the system configuration, traffic rate (distribution of
extension and line connections to the racks), installation process for the modules gets
started.
•
After the module is held upright and one makes sure the rear corners fit into the
lower and upper plastic slot rails, it is pushed forward into the slot cautiously.
•
After more than half of the module has been inserted into the slot, arrangements
pertaining to any cable that is connected to the module is done.
•
The card should eventually be pushed a little bit harder, so that the connector for
backplane connection that is on the back of the expansion card fits.
•
At this final step, the module is pushed gently by pressing the latches upward /
downward, which are at the top and bottom of the card cover in order to ensure that
the module fits tightly.
•
The card fixing clicks that are on the card cover latches should be checked to see
whether they have fitted into the holes on the chassis.
Before the expansion module contacts with the backplane while it is being pushed into its
slot, the pins that are at the top and bottom of the connection card provides ground contact
for the cards by applying pressure on the ground contact spring.
In case it is necessary to remove the modules after they are installed for the first time:
•
The module is pulled outwards by pressing the latches at the top and bottom of the
card cover and it is disconnected from the backplane.
•
The module is pulled until the line connection card gets out of the exchange.
Attention should be paid to the cable, which has been fixed under the exchange, so
that it would not be forced too much by being pulled.
•
At this point, the line connection card is disconnected from the expansion card and it
is let loose while it is still attached to the line connection cable. The module is pulled
out, so that it becomes ready for any required operation.
The steps above are repeated in reverse order in order to replace the card. While removing
and replacing the module, make sure that the line connection cable has been attached to the
chassis tightly, the expansion card and the connection cards are completely in contact and
the card cover moves in a straight line parallel to the slot rails.
*
THE MODULES MUST BE MOVED IN A STRAIGHT LINE WHILE
INSERTING OR REMOVING, WITHOUT TILTING THEM IN RIGHT-LEFT OR
UPWARD-DOWNWARD DIRECTION.