AT&T Telephone DS1/DMi/ISDN-PRI Instrukcja Użytkownika Pobierz pdf (Strona 304)

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101

A-6 ADMINISTRATION REQUIREMENTS

Secondary

Primary

System 75 must obtain synchronization timing from a 4ESS. Typically, the

carrier slot location for the DS1 connecting to a 4ESS is used as the primary

source. The switch must also be equipped with a TN741.

If multiple DS1s are present in a System 75 and are connected to this or other

4ESSs, then it may be desirable to enter their slot locations as a secondary

synchronization source. Refer to chapter 5, Synchronization of Digital Network

Facilities, for details.

Location

Name

Slip

Circuit pack slot location (as required)

Enter the facility name (if applicable)

Generally, DS1 facilities are very stable. Therefore, in most applications, a y

should be entered.

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