| 单词 | line |
| 释义 | line 1. A station line refers to the circuit between a private branch exchange (PBX) switch and a station user’s terminal equipment, which usually is in the form of telephone, although it could be a computer workstation, a printer, a facsimile machine, or some other device. 2. In rate and tariff terminology, line refers to a local loop connection from the telephone company central office (CO) switch to the user premises in support of customer premises equipment (CPE) other than a switch. Such CPE can be in the form of a single-line residence or business set, a multiline set, or the common control unit of a key telephone system (KTS). Such a line is single-channel in nature, i.e., supports a single conversation and is voice grade, i.e., provides enough bandwidth to support a voice conversation, and has a single associated telephone number. A line may be thought of as a tributary of a trunk. See also line side, trunk, and trunk side. 74570c12.qxd 9/11/07 12:25 PM Page 287 |
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