„ If the switch is mounted in a closed or multi-unit rack

4 – Installation

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Installing a Switch

 

 

 

 

 

 

 

CAUTION!

„ If the switch is mounted in a closed or multi-unit rack

 

assembly, make sure that the operating temperature inside the

 

rack enclosure does not exceed the maximum rated ambient

 

temperature. Refer to ”Environmental” on page A-4.

 

„ The switch must rest on rails or a shelf in the rack or cabinet.

 

Allow 16 cm (6.5 in) minimum clearance at the front and rear of

 

the rack for service access and ventilation.

 

„ Do not restrict chassis air flow. Allow 16 cm (6.5 in) minimum

 

clearance at the front and rear of the rack for service access and

 

ventilation.

 

„ Multiple rack-mounted units connected to the AC supply

 

circuit may overload that circuit or overload the AC supply

 

wiring. Consider the power source capacity and the total power

 

usage of all switches on the circuit. Refer to ”Electrical” on

 

page A-3.

 

„ Reliable grounding in the rack must be maintained from the

 

switch chassis to the AC power source.

When mounting the switch in a rack, ensure that the 19-inch rack meets the following standard specifications:

„ANSI/EIA RS-230 Standard, entitled Cabinets, Racks, Panels, and Associated Equipment

„MIL-STD- 189, entitled Racks, Electrical Equipment, 19-Inch and Associated Panels

The brackets shown in Figure 4-2are provided with the switch so that the switch can be secured on a shelf. The brackets alone are not designed to support the weight of the switch.

4-4

59021-09 A

Page 54
Image 54
Q-Logic QLA2342, SB2A-16B manual temperature. Refer to ”Environmental” on page A-4, page A-3