Lucent Technologies 6.1 manual Clock Synchronization

MERLIN LEGENDCommunications System Release 6.1	Issue 1
System Planning 555-661-112	August 1998
3 Lines/Trunks
Selecting Line/Trunk Options	Page 3-46

Refer to the NI-1 BRI Planner form for the information needed to complete the next sections.

4.Indicate the Service Configuration of the Central Office switch:

■If configured with IOC package “S”, place a check in the IOC “S” column under the “Service Configuration” heading.

■If configured with MLH service, indicate the type of hunt group provisioned by entering a V (voice only hunt group), D (data only hunt group), or V/D (voice/data hunt group) in either the “MLHG” or “Series Comp.” column under the “Service Configuration” heading as appropriate.

NOTES:

1.IOC package “S” is available on the Lucent Technologies 5ESS, Northern Telecom DMS-100, and Siemens SSC EWSD switches.

2.If configured with MLH service, the MLHG feature must be used if the CO is a Northern Telecom DMS-100 switch. The Series Completion feature must be used if the CO is a Lucent Technologies 5ESS or Siemens SSC EWSD switch.

3.The MERLIN LEGEND system does not support Voice/Data hunt groups with the Siemens SSC EWSD central office switch.

5.If configured with MLH (using either the MLHG or Series Completion feature), indicate whether the hunt pattern is linear or circular, by placing a check in the appropriate column under the “Hunt Pattern” heading.

6.Indicate the features available on each BRI line:

■If CPN/BN is available, place a check in the “CPN/BN” column, as appropriate.

Clock Synchronization 3

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.

If the system includes both 800 NI-BRI and 100D modules, clock synchronization planning should be completed at the same time. There is only one primary/secondary/tertiary clock for both 800 NI-BRI modules and 100D modules, with the same system programming screens used for both types.

Plan your clock source administration to minimize the need for clock switching, which is known to cause noise on active calls.