Nortel 7400 Hardware Installation page 63

• The maximum cable distance from a function processor (FP) to your
equipment varies for each line type. For more information, see cable
assembly specifications in NN10600-170 Nortel Networks Multiservice
Switch 7400 Hardware Description.
• If cable routing is overhead, install termination panels in the top portion
of the rack; if cable routing is from the floor or a wall outlet, install
termination panels in the bottom portion of the rack.
• Sharp edges can damage cables. Therefore, smooth any rough edges
around cutouts.
Site preparation for a 19-inch rack
You can install a Nortel Networks Multiservice Switch 7460 in standard 19-
inch rack, see NN10600-170 Nortel Networks Multiservice Switch 7400
Hardware Description.
Plan to run the cables to the nearest opening in a raised floor. A 20.32 cm
(8 sq. in.) opening can accommodate the cables for a Multiservice
Switch 7420 or a Multiservice Switch 7440. A cutout 6.4 cm (2.5 in.) by
42 cm (16.6 in.) can accommodate all cables from a rack that contains four
Multiservice Switch 7460 shelf assemblies or two fully configured
Multiservice Switch 7480s. If the rack is already in place, you can run the
cables through the same cutout you use for other equipment in the rack.
For detailed information about installing a 19-inch rack, see the information
provided by the supplier of the rack.
Site preparation for a Multiservice Switch cabinet
Your floor plan must conform to the required spacing shown in the figure
"Floor space requirements for Multiservice Switch cabinets" (page 64). This
figure also shows placement details for when termination panels are housed
in a separate cabinet.
Plan to run cables from the device to the nearest floor opening in a raised
floor. You can cut an opening into the floor for cables at any point near the
device. Do not cut under the footprint of the unit. A 20.32 cm
opening can accommodate the cables for a Multiservice Switch 7420 or a
Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade
Chapter 5 Multiservice Switch 7460 installation 63
2
2
(8 sq. in.)
6.1S2