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MERLIN LEGENDCommunications System Release 6.1 | Issue 1 | ||||
System Planning |
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| August 1998 | ||
3 Lines/Trunks |
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Selecting Line/Trunk Options |
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| Table |
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| Setting | dB Loss | Cable Feet* |
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| 1 (factory setting) | 0−133 |
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2 | 133−266 |
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3 | 266−399 |
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4 | 399−533 |
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5 | 533−655 |
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*Based on
8.If the system includes both 800
Plan your clock source administration to minimize the need for clock switching, which is known to cause noise on active calls.
NOTE:
The following information is for planning clock synchronization in systems that are not part of a private network. For planning clock synchronization in a private network configuration, see the Network Reference.
Under Priority in the Clock Synchronization section, do one of the following:
■If installing only one 100D module:
—To keep the factory setting, check Primary (that is, this module provides synchronization for the system).
—If the synchronization source is other than through the 100D module, check None.
■If installing more than one 100D module, decide which module, if any, provides the primary synchronization:
—If Module 1 provides clock synchronization, check Primary in the first box (the factory setting).
—If Module 2 (or Module 3) provides clock synchronization, check Primary in the box that describes that 100D module.
—If the synchronization source is other than through a 100D module, check None.
9.If assigning backup synchronization:
a.In the box that describes the 100D module providing secondary synchronization, check Secondary.
b.In the box that describes the 100D module providing tertiary back up, check Tertiary.