3Com DUA1800-0AAA04 TV Video Accessories User Manual


 
3-16 C
HAPTER
3: I
NSTALLING
M
ODULES
I
NTO
T
HE
MSH C
HASSIS
DUA1800-0AAA04
Before You Begin
Blanking Plates
The MSH chassis is supplied with blanking plates to cover single
or multiple module slots. The blanking plate sizes are:
1 slot
3 slots
5 slots
It is essential that unpopulated slots are fitted with blanking
plates to allow the controlled circulation of cooling air and to
prevent the ingress of dust.
Fitting Blanking Plates
1
Choose a plate that is the correct size for the slot(s) that you need
to cover.
2
Remove the locking bar from the front of the chassis.
3
Align the plate over the slot and tighten the captive, knurled
thumb-screws at the top and bottom.
4
Reposition the locking bar and fully tighten the two screws to
secure it in place.
Removing Blanking Plates
1
Remove the locking bar from the front of the chassis.
2
Loosen all captive, knurled, thumb-screws at the top and bottom
of the blanking plate and lift it clear of the MSH chassis.
3
Reposition the locking bar and fully tighten the two screws to
secure it in place.
4
Store the plates in a safe place until they are needed again.
Chassis.bk : CHAPTER3 Page 16 Monday, February 10, 1997 1:11 PM