Chapter 2: Installing the Hardware

For optimal electrical signal quality on the MVIP ribbon cable, you must place the MVIP boards in a specific order (depending on the number of connections) and electrically terminate two MVIP clock signals, as described in the following topics.

MVIP Electrical Termination Requirements

For systems with five or fewer MVIP Bus connections and less than 90 pF load on the clock lines, it is adequate to do the following:

1.Place the circuit board that is the master clock source at one end of the cable.

2.Electrically terminate the MVIP Bus only on the circuit board located at the other end of the cable.

NOTE

An 5536 board is generally the master clock source because it is connected to the network. In this case, place an 5536 board at one end of the cable, and do not electrically terminate the bus on this board.

On systems with more than five MVIP Bus connections or more than 90 pF of load on the clock lines, both ends of the cable must be electrically terminated. No other boards should be electrically terminated.

5536 PRI RAS Communications Controller Users Guide

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