User's Manual Part 2a

Hardware Installation Guide Installing the BSDU
02030311-05 Airspan Networks Ltd. 5-5
5.3. Rack-Mounting
The BSDU is a 1U-chassis, which is installed in a standard 19" (inch) cabinet, and is
provided with front-rail mounting brackets. The mounting brackets are part of the
BSDU chassis. Therefore, all that is required for mounting the BSDU is to attach the
BSDU mounting brackets to the cabinet. The BSDU is secured to the cabinet’s
mounting rails using the supplied four M5 mounting screws and plastic cup washers.
To rack-mount the BSDU:
1. Determine which mounting rail holes of the cabinet—left and right side—will be
used for attaching the chassis.
2. Insert four nuts into the holes you specified in Step 1.These nuts are housed in
Tinnerman clips, which allow you to fasten them into the holes. To insert the
Tinnerman clips, hold the clips, squeeze them, and then insert them into the hole.
3. Carefully insert the BSDU into the cabinet, aligning the BSDU’s mounting
brackets with the holes.
4. Insert the M5-mounting screws, with plastic washers, in the BSDU mounting
bracket screw holes, on each side, as shown Figure 5-3. In this way, the chassis
is supported until you tighten the chassis screws.