ADTRAN Total Access 3010, Системное руководство

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Total Access
®
3000/3010 System Manual
6TADLP702-1E
TOTAL ACCESS 3000/3010
DLP-702
Page 3 of 4
© 2002, ADTRAN, Inc.
Perform Steps Below in the Order Listed
1.2.2 Interconnect up to eight shelves from a single timing source
1. Measure for Needed Wire
Determine the length of wire required to run from the first shelf, connector P4/P10
to the second shelf, connector P4/P10, that is to be wired in the same daisy chain.
Leave approximately 1 inch to 1 and 1/2 inches for wire wrapping.
2. Strip the Ends of Clock wire for Wire Wrapping
Using wire-strippers, strip approximately 1 inch to 1 and 1/2 inches from both
ends of the wire run.
3. Connect “+” and “–” Leads, Terminate the Shield Drain Wire of the Source
Shelf
Using a wire-wrap tool, wire wrap the “+”, “–” and drain wires to the “+”, “–” and
“S” terminal pins of connector P4/P10, A-IN, on the left side of the backplane.
4. Dress Out the Wiring
Run the wire from P4/P10 on the “source” shelf to connector P4/P10, EXTCLK
A-IN, on the receiving shelf.
5. Connect “+” and “–” Leads, Terminate the Shield Drain Wire of the
Receiving Shelf
Using a wire wrap tool, wire wrap the “+”, “–” and drain wires of the wire run to
the “+”, “–” and “S” terminals of P4/P10 on the receiving shelf.
6. Set Termination Mode
On the daughterboard of the receiving shelf, mounted to the left of, and slightly
below P4/P10, move the jumper so that the right two pins, labeled “TERM OUT,”
are connected together.
7. Adding Additional Shelves to the Chain
Repeat steps 1-6 for each Total Access 3000/3010 shelf, up to a total of eight in
the daisy chain, that is to be interconnected on the single CO timing source.
NOTE
In any daisy chain of Total Access 3000/3010 shelves using a single timing
source, only the
first shelf in the chain should have the timing daughterboard
jumpered to “TERM IN.” All the remaining shelves in the chain should have
the daughterboard jumpered to “TERM OUT.”
1.3 Followup Procedures
Once this procedure is complete, return to the procedure which called out this DLP and
continue with the tasks indicated there.