- Punch-down Tools
- RJ-11 cable
- Known-Good TW-5XX wallplate
- TW-5XX local power supply (optional, but recommended)
Summary: To identify where a potential wiring fault is located, you need to start in the phone closet/MDF on the T5 Data-Block and work your way back to the room, testing the TW-5XX connectivity at every IDF. To provide accurate testing, you must disconnect the wires that run to the wallplate in the room before testing at the Data-Block and IDF blocks.
- The T5 switch shuts down the port when it detects a short in the wiring. The status of the port will change to "Over-current", and if left in the over-current state, it will eventually change the status to "Failed". Shorts can happen when using punch-down tools on the blocks, so it is recommended that you Disable the DSL port that you are working on prior to pulling/punching wires.
- When you disable a DSL port, it automatically disables line-power. When you enable a port, it does NOT automatically enable line-power. However, you can simply enable line-power and that will automatically enable the port. The reason for this logic is in the cases where a local power supply is in use on the wallplate and line-power needs to be disabled.
- Examine the blocks - look for corrosion or loose wires and clean those up first
- Disable the problematic DSL port on the T5 switch (This will automatically disable line-power). Command: int dslX shutdown (Where "X" = the port number)
- Disconnect the cross-connect wires from the Data-Block that run to the House Block / Rooms
- Punch down an RJ-11 cable in the place where you disconnected the wires
- Connect a known-good TW-5XX wallplate to the RJ-11 cable
- Re-enable line-power for the DSL port (this will automatically re-enable the port). Command: int dslX line-power (Where "X" = the port number)
- Check the status of the port after 2-3 minutes. Command: sho int dsl status
- If the port comes up and status is "Linked", disable the port, disconnect the RJ-11 cable and reconnect the house wires, then move to the closest IDF and repeat the same procedure, always removing the cross-connect wires that go to the Room. At this point, you have determined that the problem is in the wiring, not the T5 port.
- If the port still shows over-current, check the punch-down of the RJ-11, check for problems on the block, such as shorts and corrosion, or try new Amphenol Cable. Try removing the Amphenol cable from the Phone/DSL side of the T5. Disable and re-enable the port. If port is still in Over-Current with the Amphenol cable removed, the port on the T5 switch is bad,