HP Color LaserJet CM4540 Multifunction Printer Series-User Guide

disconnect the equipment. Users should ensure for their own protection that the electrical ground

connections of the power utility, telephone lines, and internal metallic water pipe system, if

present, are connected together. This precaution can be particularly important in rural areas.

注意： Users should not attempt to make such connections themselves, but should contact the

appropriate electric inspection authority, or electrician, as appropriate. The Ringer Equivalence

Number (REN) of this device is 0.0.

Notice: The Ringer Equivalence Number (REN) assigned to each terminal device provides an

indication of the maximum number of terminals allowed to be connected to a telephone interface.

The termination on an interface may consist of any combination of devices subject only to the

requirement that the sum of the Ringer Equivalence Number of all the dev

ces does not exceed

five (5.0). The standard connecting arrangement code (telephone jack type) for equipment with

direct connections to the telephone network is CA11A.

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