When idle, the TX-4 is transparent to the circuit and does not affect the circuit s operation. Description Designed to be versatile and portable, the TX-4 is packed with features suitable to test any 4 wire circuit. Once a test is complete the TX-4 reconnects the circuit to the equipment, and circuit operation is returned to normal.
Features Provides end to end and loopback testing.
Eliminates the need to travel to the customer site for maintenance testing. In this mode the TX-4 s are also in their normal mode of operation but each one is configured with a network address. It then automatically runs a loopback and reverse test and returns the circuit to its normal state. By addressing the TX-4 s one after another down the circuit, problems can be isolated to a specific section so that repair can be performed.