Conditioning equipment

In telecommunication, the term conditioning equipment has the following meanings:

1. At junctions of circuits, equipment used to obtain desired circuit characteristics, such as matched transmission levels, matched impedances, and equalization[?] between facilities.

2. Corrective networks used to improve data transmission, such as equalization of the insertion-loss-vs.-frequency characteristic[?] and the envelope delay distortion[?] over a desired frequency range[?].

Source: from Federal Standard 1037C and from MIL-STD-188