Patent ID: 6901538

Claim:
A method of testing a 1394 Interface card to be tested comprising M ports by using a reference 1394 interface card with N ports, wherein N≧M and both of N and M are positive integers, all ports of said 1394 interface card to be tested are connected to M ports of said reference 1394 interface card respectively by M cables, said method comprising the steps of: a. setting an integer parameter j=0; b. enabling jth port of said 1394 interface card to be tested and disabling the other (M-1) ports of said 1394 interface card to be tested; c. testing said jth port of the 1394 interface card to be tested, a test packet being transmitted between the jth port of the 1394 interface card to be tested and the jth port of the reference 1394 interface card through the corresponding cable to test the functionality of the jth port for the 1394 interface card to be tested; and d. increasing j by one and repeating steps of b, c, and d, if j is less than M; wherein the reference 1394 interface card is a 1394 interface card having already passed testing and verification.