MODEM COUPLERS COMPUTER HARDWARE

Brand	Owner	Address	Description
BLACKJACK	DIGITAL SYSTEMS INTERNATIONAL, INC.	6464 - 185TH PLACE N.E. REDMOND WA 98052	modem couplers for computer hardware and instructional manuals, sold as a unit;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

Methods, apparatus, and computer-readable media are disclosed for performing diagnostic tests of a communication link between a headend and a cable modem without having to assign an IP address to the cable modem. The diagnostic tests are performed at the MAC layer and test the state of the hardware between and including the cable modem termination system (CMTS) and a selected cable modem. By doing so, a network operator is able to more easily focus in on a potential problem in cable RF/MAC connectivity between the two components by first eliminating (or identifying) a problem with hardware before focusing on problem-solving at the software level, typically at the Network layer, at which point the cable modem is assigned an IP address.