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Program *42-1 – Primary Timing Reference Assignments (Release 3.1 and earlier)

3-130

Strata DK Programming 5/00

Program *42-1 – Primary Timing Reference
Assignments (Release 3.1 and earlier)

Initialized Default:

Primary = 1, Secondary = 2

Program *42 for DK424

–

T1 Assignment Series (Part 2)

See

“Program *42 – Clock Source” on Page 7-16

Program *42-1 Overview (Release 3.1 and earlier)

Assign the Primary Timing Reference with this program.

Note

RDTU No. 1 is the RDTU PCB installed in the lowest slot number of all RDTU PCBs,
RDTU No. 2 is the RDTU PCB installed in the next highest slot number of all RDTUs and
so on.

Primary/Back-Up Assignments Example

Note

A second RBOC T1 span line can also be used as the secondary clock source.

DK Master (free run) Assignment Example

Program *42-2 Overview (Release 3.1 and earlier)

Assign the Secondary (Backup) Timing Reference with this program.

Note

To assign RDTUs as the Master Clock Reference (free run), leave Programs

42-1 and

42-2 blank. Press button/LED 01 to enter blanks.

✱ ✱ ✱ ✱ 6SNU ✱ +ROG 6SNU

+ROG 6SNU +ROG 6SNU +ROG

Select

RDTU PCB Number

Primary

Secondary

SEL = 1 or 2
1 - Primary Source
2 - Secondary Source

RDTU PCB Number (1~8)
Enter the RDTU PCB number that is connected to the
primary reference T1 (span line) clock source.
Press LED Button 01 (blank) if the DK T1 is the master
(free run) clock source.

1863

RDTU in
Slot 13

RDTU in
Slot 25

T1 – Primary PCB

T1 – Secondary PCB

Central Office

RBOC CO lines

AT&T or MCI

Long Distance Lines

Span Line
(Primary clock source)

Span Line
(Secondary clock source)

Program Data

4 2 - 1 1 >

Program Data

4 2 - 2 2 >

Slot 13

T1 – PCB

Other DK
or PBX, etc

Span Line
(DK424 clock source)

Program Data = blank button (Button 01)

for

4 2 - 1 and 4 2 - 2

1864