raised. If all options are reported correctly, the “accept option slot configuration” needs to be applied. This will accept the
new hardware configuration and clear the alarm.
Replacing an Option Card
A failed option card can be replaced without powering down the base chassis, i.e. can be ‘hot-swapped’.
1. To perform a hot-swap the option cards should only be unplugged or inserted when the chassis is fully booted and configured.
2. Only ONE option card should be plugged in at a time, to prevent problems due to inrush current, and to ensure that the host
recognises and configures the new card.
3. If more than one option card is being fitted, a wait time of approximately 10s should be allowed between inserting each option
card.
WARNING!
Refer to "
HANDLING OPTION CARDS
" to miniise risk of damage to option cards or base chasis.
The process to replace an option card is as follows:
1. Disconnect any cables from the option card to be replaced.
2. Loosen the two captive screws that retain the option card in the base chassis.
3. Holding the captive screws, pull the option card from the unit, (observe the handling precautions).
4. Carefully remove the replacement option card from its anti-static package, and insert it in to the base chassis, slotting the
card edges in to the card guides.
5. Push the card home, so that the rear panel is flush with the rear of the base chassis.
6. Tighten the two captive retaining screws.
7. Connect any external cables to the replacement option card.
NOTE :
If the replacement card is of the same type as the failed card, then it will be automatically configured to the same
settings as the failed card.
If the replacement card is of a different type then an alarm will be generated.
Option Card Hot Swap
The unit regularly monitors to verify option card presence and to detect if a card has been removed or added.
When a new card is inserted it will start-up and attempt to link to the host controller. When this link has been established the
process of identifying the card and its capabilities begins. Once this is established, the card will be configured with the same
configuration as the card that has been replaced (assuming that the replacement card has the same capabilities).
Option Card Plug and Play
The unit is designed around a ‘Plug and Play’ concept to make it as easy as possible to add new option cards and functionality. This
means that the chassis and Host controller card provide a base level of functionality, while any specific functionality associated with
© Ericsson AB 2011. All rights reserved
© Ericsson AB 2011. All rights reserved
© Ericsson AB 2011. All rights reserved
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