Typical
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):
Daughtercard
Installation
Procedure
Step
Action
Power down the unit and remove the cables and power cord.
Remove the motherboard.
1
2
Caution
Exercise extreme care, when sliding the motherboard out, to prevent com-
ponents mounted to the underside of the board from being knocked off.
3
4
Place the motherboard on a clean flat surface.
If you are...
Then...
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.
5
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.
6
7
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.
Voice Daughtercards
3
