RUS performance specification for line concentrators.

CFR · 2024-01-01 · US · Title 7

(a) (i) Terminating subscriber lines at a location remote from the serving central office; (ii) Concentrating the subscriber lines over a few transmission and supervisory paths to the serving central office; and (iii) Terminating the lines at the central office without loss of individual identity. A subscriber connected to a line concentrator shall be capable of having essentially the same services as a subscriber connected directly to the central office equipment (COE). Intra-unit calling among subscribers connected to the concentrator may be provided, but is not required. (2) Industry standards, or portions thereof, referred to in this paragraph (a) are incorporated by reference by RUS. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552 (a) and 1 CFR part 51. Copies of these standards are available for inspection during normal business hours at RUS, room 2838, U.S. Department of Agriculture, Washington, DC 20250, or at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202-741-6030, or go to: (3) American National Standards Institute (ANSI) standards are available from ANSI Inc., 11 West 42nd Street, 13th floor, New York, NY 10036, telephone 212-642-4900. (i) ANSI Standard S1.4-1983, Specification for Sound Level Meters, including Amendment S1.4A-1985. (ii) [Reserved] (4) American Society for Testing Materials (ASTM) are available from 1

official document · source cfr-2024 · id 7:§ 1755.397