Specifications

Configuration Tasks
20
Cisco IOS Release 12.0(3)T
8 1 0 0 1 1 0 0 1
9 1 0 0 1 1 0 0 1
10 1 0 0 1 1 0 0 1
11 0 0 0 1 0 1 0 1
12 0 0 0 0 0 0 0 0
13 1 0 0 1 1 0 0 1
14 1 0 0 1 1 0 0 1
15 1 0 0 1 1 0 0 1
17 0 0 0 1 0 1 0 1
18 1 0 0 1 1 0 0 1
19 1 0 0 1 1 0 0 1
20 0 0 0 1 0 1 0 1
21 1 0 0 1 1 0 0 1
22 1 0 0 1 1 0 0 1
23 1 0 0 1 1 0 0 1
24 0 0 0 1 0 1 0 1
25 0 0 0 1 0 1 0 1
26 0 0 0 1 0 1 0 1
27 0 0 0 1 0 1 0 1
28 0 0 0 0 0 0 0 0
29 0 1 1 0 0 1 0 1
30 0 1 0 1 0 0 0 1
31 0 0 0 0 1 0 0 0
Tips
If the connection does not come up, check for the following:
• Loose wires, splices, connectors, shorts, bridge taps, and grounds
• Backward transmit and receive
• Mismatched framing types (for example, CRC-4 versus no-CRC-4)
• Transmit and receive pair separation (crosstalk)
• Faulty line cards or repeaters
• Noisy lines (for example, power and crosstalk)
If you see errors on the line or the line is going up and down, check for the following:
• Mismatched line codes—for example, high density bipolar 3 (HDB3) versus alternate mark
inversion (AMI)
• Receive level
• Frame slips due to poor clocking plan