MERLIN LEGENDCommunications System Release 6.1
System Planning
555-661-112
Issue 1
August 1998
T1/PRI Planner
Page D-4
D
The communications system in Figure D–1 is configured as follows:
■ Module 1 in slot 04 is connected to an ACCULINK 3150 CSU that is
approximately 100 cable feet from the control unit. (The DS1 facility is
connected to the PRI network.)
■ Module 2 in slot 05 is connected to an ACCULINK 3150 CSU that is
approximately 160 cable feet from the control unit. (The far end is another
communications system.)
■ The primary clock synchronization source is the PRI network connected to
Module 1. Its path is shown by a line and the letter
P.
■ The secondary clock synchronization path, shown by a line and the letter
S, is the system internal clock.
Figure D–1. Sample DS1 Planning Map
CONTROL UNIT
100D
MODULE 1
SLOT:____
100D
MODULE 2
SLOT:____
100D
MODULE 3
SLOT:____
Approximate
Distance_____
Approximate
Distance_____
Approximate
Distance_____
CSU
Acculink 3150
Other*
None
Acculink 3150
Other*
None
Acculink 3150
Other*
None
Connection 1
CO
PBX
PRI**
* Other model numbers
** The switching equipment
of the service provider
must be 4ESS Generic 13 or later
or 5ESS G6 or later.
Key:
Digital Transmission
Facility
Primary Synchronization
Source
Secondary Synchronization
Source
Tertiary Synchronization
Source
P
S
T
Clock
CSU CSU
DS1 Planning Map
Tie
LS
GS
DID
S56 Data
Services
T1 Emulated Trunks
Connection 2
CO
PBX
PRI**
Tie
LS
GS
DID
S56 Data
Services
T1 Emulated Trunks
Connection 3
CO
PBX
PRI**
Tie
LS
GS
DID
S56 Data
Services
T1 Emulated Trunks
04
100 ft 160 ft
05
S
P
