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