Cisco Cisco D9804 Multiple Transport Receiver Guida All'Installazione

 

78-4042990-01 Rev B 

19 

 

The D9804 MTR is a 1U unit with connector access at the rear panel. The D9804 MTR 
is intended for mounting in a standard 19" rack with minimum 1U spacing between 
units to allow adequate ventilation/air flow. 

 

The D9804 MTR 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 (typically) at 25°C per 
unit to avoid overheating. 

 

CAUTION: 

The inlet air temperature must not exceed 50°C/122°F at any time. 

 

 

You must ensure that the unit is properly connected to ground in order 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. 

 

To mount the D9804 MTR in a rack do the following: 
1  Mount L-brackets in the rack to support each D9804 MTR to be installed. 
2  Place the D9804 MTR in its position in the rack. 
3  Mount the D9804 MTR 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 D9804 MTR are not obstructed 

to allow air flow from the front to the back of the chassis.