Cisco Cisco D9824 Advanced Multi Decryption Receiver Guida All'Installazione

 

78-4039426-01 Rev D 

17 

 

The D9824 receiver is a 1U unit with connector access at the rear panel. The receiver 
is intended for mounting in a standard 19" rack with minimum 1U spacing between 
units to allow adequate ventilation/air flow. 

The D9824 receiver is vented from front to back. Multiple units can be stacked in a 
rack, provided that adequate cooling is available. 

 

The D9824 receiver 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. 

 

 

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. This 
connection provides additional protection of the equipment. 

 

1  Mount L-brackets in the rack to support each D9824 receiver to be installed. 
2  Place the receiver in its position in the rack. 
3  Mount the receiver 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 receiver are not obstructed to 

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