| 单词 | relay rack |
| 释义 | > as lemmasrelay rack relay rack n. Electronics a rack or frame on which relays (sense 4a) are mounted; (in later use) a standardized metal rack designed to hold panels nineteen inches in width on which amplifiers, equipment for computer servers, or other electronic modules can be mounted; cf. rack n.4 6g. ΘΚΠ society > communication > telecommunication > telegraphy or telephony > telephony > telephone equipment > [noun] > exchange > exchange equipment private line1852 bank1884 call-disc1884 howler1886 trunk1889 multiple switchboard1891 rack1893 line switch1898 heat coil1900 relay rack1902 multiple1905 listening key1906 telharmonium1906 wiper1906 preselector1912 line finder1922 rank1924 routiner1928 keysender1929 uniselector1930 wiper arm1933 1902 Amer. Telephone Jrnl. 6 Dec. 327/1 The cable between the main relay racks..is laid up on forms and tied into position. 1930 Proc. IRE 18 1320 The amplifiers are mounted on relay racks and connected by twin lead wire pulled in rigid conduit. 1997 J. Trulove LAN Wiring viii. 156 Relay rack and equipment mounting options are also available for 110 system wiring blocks. < as lemmas |
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