ITU-T S 9-1988 SWITCHING EQUIPMENT OF START - STOP APPARATUS《起止装置的交换设备》.pdf

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1、INTERNATIONAL TELECOMMUNICATION UNION)45G134 3 TELECOMMUNICATIONSTANDARDIZATION SECTOROF ITU4%,%2!0(9!,0(!“%4)#!,G0G04%,%2!0(G0G04%2-).!,%15)0-%.437)4#().G0G0%15)0-%.4G0G0/ modified at New Delhi, 1960,Geneva, 1980 and Melbourne, 1988)The CCITT,consideringRecommendation U.1 1 relative to signalling c

2、onditions to be applied in the international telex service andRecommendation F.60 2 relative to operational provisions for the international telex service,unanimously declares the view(1) that terminal apparatus participating in the international telex service should normally always be availableto r

3、eceive a call in accordance with the conditions set forth in Recommendations U.1 and F.60;(2) that start-stop apparatus used in the telex service should be so equipped, or provided with the necessarydevices, to permit of operation in accordance with Recommendations U.1 1 and F.60 2;(3) that, if a su

4、bscribers apparatus is such that he can use his teleprinter outside communication periods inorder to prepare perforated tapes, for local checking of those tapes, for staff training, etc., the possibility of taking theanswer-back may be delayed for a period not exceeding 3 seconds after connection of the called subscriber.References1 CCITT Recommendation Signalling conditions to be applied in the international telex service, Rec. U.1.2 CCITT Recommendation Operational provisions for the international telex service, Rec. F.60.