Installing The D9858 Transcoder; Rack Mounted; Cooling; Grounding - Cisco D9858 Installation And Configuration Manual

Installing the D9858 Transcoder

Rack Mounted

The D9858 transcoder is a 1U unit with connector access at the rear panel. The
transcoder is intended for mounting in a standard 19" rack with minimum 1U
spacing between units to allow adequate ventilation/air flow.
The D9858 transcoder is vented from front to back. Multiple units can be stacked in a
rack, provided that adequate cooling is available.

Cooling

The D9858 transcoder is cooled by the use of internal fans. The air intake is from the
front and the air outlet is on the rear.
Note: Adequate cooling must be provided equaling 107 W (maximum) at 25°C per
unit to avoid overheating.
CAUTION:
The inlet air temperature must not exceed 50°C/122°F at any time.

Grounding

You must ensure that the unit is properly connected to ground to meet safety and
EMC requirements. Before any other connection is made, the unit must be connected
to a protected ground terminal as described below:
Via the three wire power cord of the AC power supply. This connection is

mandatory.
In addition, via the protective ground terminal on the rear panel of the unit. This

connection provides additional protection of the equipment.

Mounting the D9858 Transcoder to a Rack

1 Mount L-brackets in the rack to support each D9858 transcoder to be installed.
2 Place the transcoder in its position in the rack.
3 Mount the transcoder securely to the rack by securing the mounting flanges to
the rack using the four screws provided.
4 Make sure the air outlet holes on the back of the transcoder are not obstructed to
allow air flow from the front to the back of the chassis.

Installing the D9858 Transcoder

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