Cisco Model D9479 Gigabit QAM Modulator Installation Guide

Install the Modulator Into a Rack

78-745431-01 Rev E

Environmental Requirements Table

Item

Specification

Operating Temperature

0° to 50°C (32° to 122°F)

CAUTION:

Avoid damage to this product! Your warranty is

void if you operate this product above the

maximum specified operating temperature.
Use caution when installing wiring and racks to

avoid obstruction of air flow into the side air

vents of the GQAM, or out of the vent fans at the

GQAM side panel.

Important: You must use the supplied notched rack

mounts (part numbers 734845 and 734846) to mount the

GQAM in the rack. These rack mounts allow correct air

circulation through the unit.

Storage Temperature Range

–10° to 70°C (14° to 158°F)

Operating Humidity

5 to 95%, non-condensing

Vibration Susceptibility

No data errors with a chassis vibration of 0.5 Gs. No data

errors with a vibration frequency of 10 to 400 Hz

Electrostatic Shock Susceptibility No damage sustained from five discharges of 15 KV IEC

electrostatic discharge model (150pF + 150 Ω) to all

exposed connections

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

into the side air vents of the GQAM or out of the vent fans on the side of the

GQAM.
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: The supplied rack mounts (part numbers 734845 and 734846) must be

used. When you use the supplied rack mounts, you can install these modulators

above or below each other in the rack with no space required. These rack mounts

provide additional support along with the following features:



Attaches directly to the rack