Allied Telesis AT-BMGMT Guía de instalación descargar pdf (Pagina 72)

Chapter 3: Installing the Chassis in an Equipment Rack

Adjusting the Equipment Rack Brackets

You may set the position of the chassis relative to the front of the

equipment rack by adjusting the two equipment rack brackets that are pre-

installed on the sides of the unit. The front of the chassis can be flush with,

extend beyond, or be recessed behind the front of the equipment rack.

You may also install the chassis so that the rear panel is flush with the

front of the equipment rack.

The different bracket positions are listed in Table 18 and illustrated in

Figure 29 on page 73 and Figure 30 on page 73. Please review the

following information before moving the brackets:

 Position A, the default position, positions the chassis so that the

front of the unit is flush with the front of the equipment rack.

 Position B recesses the front of the chassis by 27.39 mm (1.1 in).

 Positions C to E extend the front of the chassis beyond the front of

the rack from 27.39 mm (1.1 in) to 140.85 mm (5.545 in).

 Position F installs the chassis with the rear panel flush with the

front of the equipment rack.

 To install the rack mount brackets in position “E,” you have to

remove the two chassis screws from the bottom-middle section of

the chassis and re-install them in front where the rack mount

bracket screws were originally, as shown in Figure 29 on page 73.

 The dimension (X) between the front panel and the rack rails is

given for each rack mounting bracket position in Table 18.

Table 18. Front Panel to Rack Rail Dimensions

Figure # Front Panel Position

Dimension X

Front Panel to Rack Rail

29 A

(Factory Installed - Flush)

3.69 mm (0.145 in)

29 B

(Recessed)

-27.39 mm (-1.078 in)

29 C 27.39 mm (1.078 in)

29 D 47.71 mm (1.878 in)

29 E 140.85 mm (5.545 in)

30 F

(Reverse Position)

374.16 mm (14.731 in)

1 2 ... 67 68 69 70 71 72 73 74 75 76 77 ... 167 168

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Allied Telesis AT-BMGMT Guía de instalación Pagina 72