ACC8060 75 to 120 Ohm Balun, BNC Plug / Compression IDC 36.30 75 to 120 Ohm E1 Dual Balun - Two BNC Jacks to RJ45 This unit allows bi-directional connectivity between coaxial and twisted pair E1 cabling. Dual 75 Ohm coaxial connections connect to shielded 120 Ohm RJ45 jack for easy connecting to terminated UTP / STP cabling. ACD201 Dual BNC Jack / RJ45 Balun, 75 to 120 Ohm 67.15 Active Video Baluns
A class invariant is a condition that defines all valid states for an object. It is a logical condition to ensure the correct working of a class. Class invariants must hold when an object is created, and they must be preserved under all operations of the class. In particular all class invariants are both preconditions and post-conditions for all operations or member functions of the class.
Freebase(0.00 / 0 votes)Rate this definition: Invariant. In computer science, an invariant is a condition that can be relied upon to be true during execution of a program. For example, a loop invariant is a condition that is true at the beginning and end of every execution of a loop. Chaldean Numerology.