Unison Component Installation Procedures
7-18
InterReach Unison Installation, Operation, and Reference Manual
CONFIDENTIAL
D-620003-0-20 Rev J
7.4.2
Installing Expansion Hubs
The Expansion Hub (2U high) can be installed in a standard 19 in. (483 mm) equip-
ment rack or in a wall-mountable equipment rack that is available from LGC Wire-
less. Allow a clearance of 76 mm (3 in.) front and rear and 51 mm (2 in.) sides for air
circulation. No top and bottom clearance is required.
Install the Expansion Hub in a horizontal position only.
CAUTION:
Install Expansion Hubs in indoor locations only.
Installing an Expansion Hub in a Rack
Consideration:
• The Expansion Hub is shipped with #10-32 mounting screws. Another common
rack thread is #12-24. Confirm that the mounting screws match the rack’s threads.
• If you want to move the mounting brackets to a mid-mounting position, refer to
Installing an Expansion Hub in a Wall-Mounted Rack on page 7-18.
To install the hub in a rack:
1.
Insert spring nuts into the rack where needed or use existing threaded holes.
2.
Place the Expansion Hub into the rack from the front.
3.
Align the flange holes with the spring nuts installed in Step 1.
4.
Insert the mounting screws in the appropriate positions in the rack.
5.
Tighten the mounting screws.
Installing an Expansion Hub in a Wall-Mounted Rack
Considerations:
• The rack and the Expansion Hub are both 305 mm (12 in.) deep. You must move
the rack mounting brackets on the Expansion Hub to the center mounting position
to allow for the 76 mm (3 in.) rear clearance that is required.
• The maximum weight the rack can hold is 22.5 kg (50 lbs).
To install the hub in a wall-mounted rack:
1.
Attach the equipment rack to the wall using the screws that are provided.
The rack must be positioned so that the Expansion Hub will be in a horizontal
position when it is installed.
2.
Remove both of the rack mounting brackets from the hub.
