Loopback plugs Flashcards
How is an RJ45 Ethernet loopback plug wired?
An RJ45 Ethernet loopback plug is wired by connecting pin 1 to pin 3 and pin 2 to pin 6 within the plug. This configuration loops the transmit and receive pairs for testing purposes.
Describe the pin configuration for a T1 loopback plug.
A T1 loopback plug typically uses an RJ48 connector and is wired by connecting pin 1 to pin 4 and pin 2 to pin 5. This loops the transmit (TX) and receive (RX) pairs for testing.
How is a 56K loopback plug typically configured?
A 56K loopback plug, often using an RJ11 or DB25 connector, loops the transmit and receive lines. For an RJ11 connector, this typically involves connecting pin 2 to pin 3. For a DB25 connector, it involves connecting pin 2 to pin 3 and pin 4 to pin 5.
