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

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Installing Features
The following features may be installed in the 8239:
¹
Optical Fiber RI/RO Module (Model 1 only)
¹
RJ-45 RI/RO Module (Model 1 only)
¹
16-Port Expansion Feature
For instructions for the installation of these features, go to Chapter 3, Installing
Features.
Placing the 8239
The 8239 can be placed on a tabletop or installed in a customer-supplied rack.
If you are installing this 8239 in a rack, go to “Rack-Mounting the 8239.” Otherwise,
continue with “Surface-Mounting the 8239.”
Surface-Mounting the 8239
Place the 8239 on a flat horizontal surface sturdy enough to support its weight. The
8239 is not designed for vertical mounting.
Continue with “Connecting the Cables” on page 2-4.
Rack-Mounting the 8239
The 8239 can be installed in a standard, open, EIA 19–in. rack in a wiring-closet
environment.
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8239 Setup and User’s Guide