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Clock Controller Installation
Page 83 of 188
ISDN PRI Installation
4
Set faceplate ENL/DIS switch to DIS.
5
Install Clock Controller in the selected slot.
6
Run and connect cables
—
Connect the primary reference to J2.
—
If available, connect the secondary reference to J1.
—
Connect the cable between the two clocks to J3 on each controller
card.
7
Set the faceplate ENL/DIS switch to ENL.
8
Enable the Clock Controller by entering ENL CC x in LD 60.
9
Set the error detection thresholds and clock synchronization controls
in LD 73. (Optional with card replacement; required with new
installation.)
10
To track on a primary or secondary reference clock, use LD 60. Use
the following command:
11
Issue the status check command, SSCK.
12
(Optional) Activate the new Clock Controller with the LD 60 SWCK
command.
13
Repeat, if necessary, for the second Clock Controller.
TRCK PCK
(for primary)
SCLK
(for secondary)
FRUN (for free-run)