Installation manual

COMSPHERE 3000 Series Carrier
3-2 March 2001 3000-A2-GA31-F0
Preinstallation Preparations
You will need the following tools:
• Phillips screwdriver
• Long-nose pliers
• 1/4″ nut driver
• 5/16″ nut driver
WARNING
Turn off the power to the
3000 Series Carrier before you
install the T1 auxiliary
backplane.
" Procedure
1. Remove the power transformer unit from the front
of the 3000 Series Carrier. Refer to the Power
Transformer Unit Installation section in
Chapter 2.
2. Remove the NIM, if present, from the back of the
3000 Series Carrier. Refer to the NIM Installation
section in Chapter 4.
3. Remove the two hexagonal standoffs:
If the T1
auxiliary
backplane will
be mounted
over . . .
Then use the 1/4″ nut
driver to remove the
two hexagonal
standoffs from either
side of . . .
Slots 1–8 Connectors P23 and P24
Slots 9–16 Connectors P25 and P26
P26 P25 P24 P23
P20 P19
J2 P22 J1 P21
496-14878
P23
P24
P21
J1
Hexagonal
Standoffs
Installing the T1 Auxiliary Backplane
" Procedure
1. On the side you will install the auxiliary
backplane, install No. 5 nuts, nylon insulating
washers, and long hexagonal standoffs. Tighten
the assembly with 5/16″ and 1/4″ nut drivers.
Nut
Nylon
Washer
Long
Standoffs
3000 Carrier
Backplane
00-15231-01