Chapter 3: Installation3-42E42-27/2E42-27R/2E43-27/2E43-27R User’s GuideFigure 3-1 Tabletop or Shelf Installation3.3.2 Rackmount InstallationTo install the 2E4X-27 in a 19-inch rack, Cabletron Systems includes anaccessory kit containing the rackmount brackets, mounting screws, and astrain-relief bracket for cable management.Guidelines for the Rackmount InstallationThe installation site must be within reach of the network cabling and meetthe requirements listed below:• An appropriate grounded power receptacle must be located withinseven feet of the location.• Maintain a temperature of between 5°C (41°F) and 40°C (104°F) atthe installation site with fluctuations of less than 10°C (18°F) per hour.!CAUTIONTo ensure proper ventilation and prevent overheating, leave aminimum clearance space of 5.1 cm (2.0 in) at the left, right,and rear of the 2E4X-27.WARNINGBefore installing the 2E4X-27 into a rack, ensure that the racksupports the device(s) without compromising the stability of therack. Otherwise, personal injury and/or equipment damagemay result.1960-06A = 15 cm (6 in)B = 57 cm (22.5 in)C = 53 cm (21 in)CBADD = 213 cm (7 ft)123456781112131415169101718192021222324COMPWRCPURESET1X 3X 5X 7X 9X 11X 13X 15X 17X 19X 21X 23X 26252E42-27
