Chapter 2: Preparation
7500 Series Modular Switch Quick Start Guide
PDOC-00015-07
5
Chapter 2 Preparation
2.1
Site Selection
The following criteria should be considered when selecting a site to install the switch:
•
Floor Space:
Install the switch in an area that provides adequate clearance for removing front and
rear components.
displays switch clearance requirements.
•
Temperature and Ventilation:
For proper ventilation, install the switch where there is ample airflow
to the front and back of the switch. The temperature should not go below 0° or exceed 40° C.
Important!
To prevent the switch from overheating, do not operate it in an area where the ambient temperature
exceeds 40°C (104°F).
•
Airflow Orientation:
The fans direct air from the front panel to the rear panel. Orient the front
panel toward the cool aisle.
•
Rack Space:
Install the switch in a 19" rack or cabinet. The switch height is 11 RU (7508 / 7508E) or
7 RU (7504 / 7504E). The accessory kit provides mounting brackets for two-post and four-post racks.
When mounting the switch in a partially filled rack, load the rack from bottom to top, with the
heaviest equipment at the bottom. Load the switch at the bottom if it is the only item in the rack.
•
Power Requirements:
The 7508 / 7508E switch requires two 200-240 VAC, 50 or 60 Hz, 20 A circuits.
The 7504 / 7504E switches require one 200-240 VAC, 50 or 60 Hz, 20 A circuit.
Four circuits provide redundancy protection. The switch uses power cables that comply with
IEC-320 and have a C19 plug. The accessory kit provides four IEC-320 C19 to C20 power cables, each
two meters long.
Important!
All power input plug-socket combinations must be accessible at all times; they provide the primary
method of disconnecting power from the system.
•
Other Requirements:
Select a site where liquids or objects cannot fall onto the equipment and
foreign objects are not drawn into the ventilation holes. Verify these guidelines are met:
— Clearance areas to the front and rear panels allow for unrestricted cabling.
— All front and rear panel indicators can be easily read.
— AC power cords can reach from the AC power outlet to the connectors on the front panel.
Important!
Disconnecting power to all input sockets is required to completely power off the unit.
Figure 1: Switch Component Removal Footprint
