Cabletron Systems pmn User Manual

Page of 150
Chapter 3: Installation
3-4
2M46-04R/2M46-04RDC User’s Guide
3.3.2
2M46-04R and 2M46-04RDC Rackmount 
Installation
Guidelines for the Rackmount Installation
The installation site must be within reach of the network cabling and meet 
the requirements listed below:
An appropriate grounded power receptacle must be located within 
seven feet of the device. (This requirement does not apply to the 
2M46-04RDC.)
Maintain a temperature of between 5
°
C (41
°
F) and 40
°
C (104
°
F) at 
the installation site with fluctuations of less than 10
°
C (18
°
F) per hour.
To install the 2M46-04R/04RDC in a 19-inch rack, Cabletron Systems 
includes an accessory kit containing the rackmount brackets, mounting 
screws, and a strain-relief bracket for cable management.
Attaching the Strain-Relief Bracket
Attach the strain-relief bracket to the front of the 2M46-04R/04RDC as 
follows:
1.
Locate the strain-relief bracket and four 8-32 x 3/8-inch pan-head 
screws in the rackmount kit.
2.
) on 
a clean flat surface. Then attach the strain-relief bracket to the bottom 
of the 2M46-04R/04RDC using the four 8-32 x 3/8-inch pan-head 
screws.
WARNING
Before installing the 2M46-04R/04RDC into a rack, ensure that 
the rack supports the device(s) without compromising the 
stability of the rack. Otherwise, personal injury and/or 
equipment damage may result.
!
CAUTION
To ensure proper ventilation and prevent overheating, leave a 
minimum clearance space of 5.1 cm (2.0 in) at the left, right, 
and rear of the 2M46-04R.
!
CAUTION
Do not attempt to attach the strain-relief bracket with screws 
other than the 8-32 x 3/8-inch screws included with the 
2M46-04R/04RDC. Use of longer screws may damage the unit.