Vanguard Managed Solutions 6435/6455 ユーザーズマニュアル

Voice Daughtercards 

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Refer to Figure 0-4, and follow this procedure to install a voice daughtercard into a 

typical Vanguard Networks product (the Vanguard 340E/342 is shown):

Power down the unit and remove the cables and power cord.

Remove the motherboard. 

Exercise extreme care, when sliding the motherboard out, to prevent com-

ponents mounted to the underside of the board from being knocked off.

Place the motherboard on a clean flat surface.

Adding a daughtercard  Connect the 68-pin interface header onto the 

motherboard. 
Install this daughtercard in daughtercard slots for 

Port 1.

Replacing a daughter-

card 

a) Remove the daughtercard mounting screw 

that attaches the daughtercard to the board.

b) Unscrew the two rear panel coverplate 

screws. Unplug the existing daughtercard. If 

no daughtercard is installed, remove the 

metal blanking plate.

c) Align the standoff on the motherboard with 

the hole on the new daughtercard. 

Push the daughtercard down into the connector being careful to align the 

pins. 
Do not apply excessive pressure when pushing the daughtercard into the 

connector or you may damage the card.

Fasten the screw that attaches the daughtercard to the motherboard, then 

fasten the two rear panel coverplate screws. Daughtercard replacement/

addition is complete.

Reinstall the motherboard by reversing Steps 1and 2.