This Bit Error Rate Test Set not only performs the standard bit and block error tests, it measures error seconds, percent error free seconds, timing delay, and parity errors.
Increased flexibility is afforded by providing you with the ability to verify various elements of Level 1 protocol in the form of a complete breakout box.
You can manipulate and monitor individual signal lines on the RS-232C/V.24 interface or cross patch any line from the DCE side of the interface to the DTE side of the interface.
Agilent / HP 4925A