IBM 8239 Token-Ring Stackable Hub, Setup And User Manual

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Figure 1-3. 8239 Dimensions
Placement
The 8239 can be placed on a tabletop or installed in a customer-supplied rack.
To surface-mount the 8239, choose a flat horizontal surface sturdy enough to
support the weight of the 8239. Do not mount the 8239 vertically.
The 8239 can be installed in a standard, open, EIA 19-in. rack in a wiring-closet
environment. The rack must meet the requirements of ANSI/EIA RS-310-C. The
8239 requires 1.5 rack units.
Weight
8239 Model 1: 7.0 kg (15.4 lb) when empty; 7.4 kg (16.4 lb) when fully loaded
8239 Model 2: 7.0 kg (15.4 lb) when empty; 7.4 kg (16.4 lb) when fully loaded
Service Clearances
Front Adequate space to view LEDs
Sides Minimum of 50 mm (2 in.) for cooling purposes
Rear Minimum of 130 mm (5 in.) to provide for cables
Environmental Requirements
Operating Temperature 10°— 40° C (50°—104° F)
Storage Temperature -40°—60° C (-40°—140° F)
Humidity 20°—85%
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8239 Setup and User’s Guide