| 1. B.E.R.T. OR BIT ERROR
RATE TEST, IS A TESTING METHOD FOR DIGITAL COMMUNICATION
CIRCUITS THAT USES PREDETERMINED STRESS PATTERNS
COMPROMISING OF A SEQUENCE OF LOGICAL ONES AND ZEROS. A
BERT TESTER TYPICALLY CONSISTS OF A TEST PATTERN
GENERATOR AND A RECEIVER THAT CAN BE SET TO THE SAME
PATTERN. THEY CAN BE USED IN PAIRS, WITH ONE AT EITHER
END OF A TRANSMISSION LINK, OR SINGULARLY AT ONE END WITH
A LOOPBACK AT THE REMOTE END. BERT TESTERS ARE TYPICALLY
STAND-ALONE SPECIALISED INSTRUMENTS, BUT CAN BE PERSONAL
COMPUTER BASED. |