... Field Performance Testing V15 060508 Page 1 of 11FIELD PERFORMANCE TESTING OF COPPER PERMANENT LINKS AND CHANNEL Class D, Class E, Class EA (10GBE)This is a living document and is subject ... Page 2 of 11 Performance Testing of Permanent Links and ChannelsThere are 3 distinct areas of cable testing; Certification, Qualification and Verification.Certification is the most rigorous of ... circuits.1. Permanent Links And ChannelsThe fundamental building blocks for a telecommunications system are the permanent links (PL) and channels (Ch). The field testers needed for PL testing must...