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PA-4R Half-Duplex Token Ring Port Adapter Installation and Configuration
OL-3589-01
VIP2 and the 4R Port Adapter
Caution To prevent interface reconfiguration requirements, you should replace a port adapter with the same type
of port adapter you removed, but this is not a requirement.
When only one port adapter is installed on a VIP2, a blank port adapter must fill the empty slot to allow
the VIP2 and router chassis to conform to electromagnetic interference (EMI) emissions requirements,
and so that air flows through the chassis properly. If you plan to install a new port adapter, you must first
remove the blank port adapter.
Use the following standard procedure to remove and replace any type of port adapter on a VIP2:
Step 1 Attach an ESD-preventive wrist strap between you and an unfinished chassis surface.
Note If you want to install a new port adapter on a VIP2 with a single port adapter, you must first
remove the blank port adapter from the port adapter slot in which you want to install the new
port adapter.
Step 2 For a new port adapter installation or a port adapter replacement, disconnect any interface cables from
the ports on the front of the port adapter, although, this is not required. You can remove VIP2s with
cables attached; however, we do not recommend it.
Step 3 Remove the VIP2 from the system. (Follow the steps in the section “Removing a VIP2” in the
configuration note Second-Generation Versatile Interface Processor (VIP2) Installation and
Configuration [Document Number 78-2658-xx], which shipped with your VIP2.) Place the removed
VIP2 on an antistatic mat.
Step 4 Locate the screw at the rear of the port adapter (or blank port adapter) to be replaced. (See .) This screw
secures the port adapter (or blank port adapter) to its slot.
Figure 9 Location of Port Adapter Screw (Partial Port Adapter View)
Step 5
Remove the screw that secures the port adapter (or blank port adapter).
Step 6 With the screw removed, grasp the handle on the front of the port adapter (or blank port adapter) and
carefully pull it out of its slot, away from the edge connector at the rear of the slot. (See .)
H3148
Screw