Online Insertion and Removal
Cisco AS5800 Universal Access Server Hardware Installation Guide1-44
Each DSC card and dial shelf card contains female connectors that connect to the system backplane .
Each male backplane connector comprises a set of tiered pins in three lengths. The backplane pins
send specific signals to the system as they make contact with the card connectors. The system
assesses the signals it receives and the order in which it receives them to determine whether to
initialize a startup or shutdown procedure.
Each DSC card and dial shelf ca rd is d esign ed wi th t wo e je ct or l e v er s t o be us ed when y ou in stal l or
remove a card. The func tion of the ejector lever s (see Figure 2-5) is t o align and securely se at the
card connectors in the backplane and facilitate the installation and removal process.
Do not force the DS C cards or dial shelf cards into the slot, be cause this can damage the card
connector pins if they are not aligned properly with the card connectors.
To avoid erroneous failure messages, you must allo w at least 15sec for the system to reinitialize and
note current interface configurations before you remov e or inse rt another DSC c ard or dial she lf card
in the dial shelf.