2.2 Installation of the Hybrid IP-PBX
2.Position the card in the open slot, making sure that the tabs on the both sides of the card fit into place. Then, holding the card firmly in place, lower the rear end so that the hole of the card fits over the extension bolt.
Optional Service Card
1
2
Extension Bolt
CAUTION
When installing the optional service cards, do not put pressure on any parts of the main board (e.g., tall capacitors). Doing so may result in damage to the Hybrid
3.Insert the new extension bolt (included with the card) into the hole on the card, and tighten it to secure the card.
Extension Bolt 
Installation Manual
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