Technical data

Installing the ATMSpeed/155 Modules

893-01047-A 2-5

5. Seat the backplane connectors by simultaneously rotating the inserter/

extractor levers inward toward the center of the switch module front

panel to the horizontal position (see Figur

e 2-5).

Figure 2-5. Seating the module

When the front panel of the module is ﬂush with the front of the chassis, the

module backplane connectors are properly seated.

6. Use the ﬂat-tip screwdriver to tighten the captive retaining screws at both

ends of the module front panel.

Installing or Replacing the Media Dependent Adapter

The following section provides information about:

• Installing any of the 5720-x ATM MDAs on a ATMSpeed/155 MDA and

ATMSpeed/155 MDA MCP switch modules

• Replacing an MDA on an MDA switch module

• Connecting UTP cables to the MDA

• Connecting ﬁber optic cables to the MDA

Note: The captive retaining screws on the module must be tightened to at

least 2 inch-pounds, but no more than 4 inch-pounds, of torque. Finger

tightening is also adequate. Do not overtighten.

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