Cisco Model D9477 MQAM Modulator Installation Guide
Install the Modulator Into a Rack
78-717866-01 Rev D
15
Install the Modulator Into a Rack
The front bezel of the MQAM mounts to the front of the equipment rack. The
MQAM fits into an EIA RS-310 rack mount.
Refer to Installation and Operation Requirements (on page 86) for rack size, power,
Refer to Installation and Operation Requirements (on page 86) for rack size, power,
and environmental requirements.
Installing the Modulator into a Rack
CAUTION:
Do not tangle or strain interconnecting cables.
Use caution when installing wiring and racks to avoid obstruction of airflow
Do not tangle or strain interconnecting cables.
Use caution when installing wiring and racks to avoid obstruction of airflow
into the side air vents of the MQAM or out of the vent fans on the side of the
MQAM.
IMPORTANT: You must use the supplied notched rack mounts to provide
IMPORTANT: You must use the supplied notched rack mounts to provide
additional support and to allow correct air circulation through the unit.
1 Install the rack mounts.
Important: Additional mechanical support for the MQAM is strongly
recommended due to the stress of cabling. Angle Support Brackets (Cisco part
number 345763), which provide additional support, provide the following:
Attaches directly to the rack
Allows you to slide modulators partially out of the rack for service
Allows appropriate air circulation throughout the unit
2 Place the modulator in the rack.
3 Insert a mounting screw through each of the four-bezel mounting holes on the
3 Insert a mounting screw through each of the four-bezel mounting holes on the
front panel of the MQAM and then into the rack.
4 Firmly tighten each mounting screw.
5 Install 1 RU vent panel above the MQAM.
5 Install 1 RU vent panel above the MQAM.
Note: The Cisco part number for a V-1 spacer louvered vent panel is 279070.