Total Access
®
3000/3010 System Manual
6TADLP721-1E
TOTAL ACCESS 3000/3010
DLP-721
Page 2 of 4
© 2002, ADTRAN, Inc.
Perform Steps Below in the Order Listed
1.2 Detailed Level Procedure 721
1. Verify that the Shelf Under Test is Powered
Verify that the shelf to be tested is powered with -48V.
2. Seat the TAM card in the Slot to be Tested
Seat the TAM card in the slot to be tested. If the entire shelf needs to be tested,
start with slot 1. This test may only be performed on the access module slots
labeled 1 through 28. This test may not be performed on the SCU slot or the A and
B MUX slots.
3. Connect Tip of Pair 1 on the MDF to Ground
Locate the position on the MDF which corresponds to Pair 1 for the slot under test.
Use the test jack to connect the wire-wrap pin labeled T to frame ground.
4. Check for Green Pair 1 LED
Visually verify that the LED on the TAM card labeled Pair 1 is lit green. No other
LED on the TAM card should light. If the LED lights up red, this indicates that the
Tip and Ring wires are reversed. No LED lit indicates no continuity on Tip.
5. Connect Ring of Pair 1 on the MDF to Ground
Disconnect Tip of Pair 1 from frame ground. Use the test jack to connect the
wire-wrap pin labeled R for Pair 1 to frame ground.
6. Check for Red Pair 1 LED
Visually verify that the LED on the TAM card labeled Pair 1 is lit red. No other
LED on the TAM card should light. If the LED lights up green, this indicates that
the Tip and Ring wires are reversed. No LED lit indicates no continuity on Ring.
7. Connect Tip of Pair 2 on the MDF to Ground
Move the test jack from the Pair 1 position to the Pair 2 position for the same slot.
Connect Tip of Pair 2 to frame ground.
8. Check for Green Pair 2 LED
Visually verify that the LED on the TAM card labeled Pair 2 is lit green.
9. Connect Ring of Pair 2 to Ground
Disconnect Tip of Pair 2 from Ground. Connect Ring of Pair 2 to frame ground.
10. Check for Red Pair 2 LED
Visually verify that the LED on the TAM card labeled Pair 2 is lit red.
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