HP FlexFabric 11900 Switch Series Installation Guide

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is greater than the system power consumption. HP recommends that you reserve 20% of the maximum

output power.

IMPORTANT:

• Power supplies of different models cannot be installed on the same switch.

• When the temperature of a power supply exceeds the normal operatin

temperature, the power suppl

is automatically powered off. When the temperature recovers to the normal temperature, the power

supply is automatically powered on.

Fan trays

Table 26 shows the fan tray that a 11908-V switch chassis supports. Every 11908-V switch comes with one

fan tray installed.

Table 26 Fan tray specifications

Product code HP description Alias

Number

of fans

Fan

diameter

Maximum

rotating

eed

Maximum

air flow

rate

JG618A

HP FlexFabric

11908-V Spare

Fan Assembly

11908-V fan

tray

120 mm

(4.72 in)

5200 RPM 1152 CFM

Mounting accessories

Before installing the switch to the rack, install slide rails to the rack. You can order an HP X421 A-Series

Chassis Universal 4-Post Rack Mounting Kit (JC665A), which is referred to as "the rack mounting kit" in

this document.

An HP X421 A-Series Chassis Universal 4-Post Rack Mounting Kit (JC665A) includes cage nuts, screws,

and a pair of slide rails. The length of the slide rails is in the range of 500 mm (19.69 in) to 800 mm

(31.50 in). A pair of slide rails can bear a maximum weight of 350 kg (771.60 lb). Before you use the

slide rails, make sure the following requirements are satisfied:

• The inside depth of the rack falls into the length range of the slide rail.

• The slide rails can support the total weight of the switch chassis and its accessories.

Transceiver modules

The switch supports transceiver modules. You can order transceiver modules according to the transceiver

modules supported by the LPU interfaces. For more information, see Table 21.

he switch supports the following transceiver modules:

• 10-Gigabit SFP+ modules in Table 27

• 1

0-Gigabit SFP+ cables in Table 28

• Gig

abit SFP modules in Table 29

• QSFP+ modul

es listed in Table 30