Cable modem (cable set up box, etc.) test system
Optical communications (optical modem, optical transceiver, etc.) test system
Voice communications (phone, FAX, etc.) test system
Wired Test Items
Minimum range of cable modem signals, size of spurious emission, etc.
Frequency of optical communications, 2ndintermodulation,etc.
Transversal voltage balance of voice communications, direct current resistance, etc.