WPCL 2BJ|x H   X  6p&6p&   H   c4 P  Fascicle VII.2 - Rec. U.25 PAGE1   HH   c4 P PAGE2 Fascicle VII.2 - Rec. U.25  HH Hp P X`h!(# X    c4 P Recommendation U.25 HP X`h!(#8= c4 P REQUIREMENTS FOR  c4 P TELEX AND GENTEX OPERATION 89TO BE MET BY CODE- AND SPEED-DEPENDENT TDM SYSTEMS 8ACONFORMING TO RECOMMENDATION R.101 Hp P X`h!(#8K c4 P (Geneva, 1980) HP X`h!(#Ё The CCITT, Hp P X`h!(#considering  H  (a)pthat it may be desirable to use code- and speed-dependent TDM systems described in Recommendation R.101 in the teleprinter switching networks;  H  (b)pthat it is essential to transmit the full range of telex signals for types A, B, C and D signalling; unanimously declares  H  that the following requirements for telex and gentex operation should be met by code- and speed-dependent time division multiplex systems conforming to Recommendation R.101.  H  1  Transmission of type A (control) signals shall be accomplished within the tolerances specified in Table1/U.25.  H  2  Transmission of type B (control) signals shall be accomplished within the tolerances specified in Table2/U.25.  H  3  Transmission of type C signals shall be accomplished in accordance with Table 3/U.25.  H  4  Transmission of type D signals shall be accomplished in accordance with Recommendation U.12.  H  5  Each of the following modes of bothway telex signalling shall be capable of being accomplished on a single circuit:   a)ptype A in one direction and type B keyboard in the other;   b)ptype A in one direction and type B dial in the other;  Hx   c)ptype B keyboard in one direction and type B dial in the other;   d)ptype A in both directions;   e)ptype B dial in both directions;   f)ptype B keyboard in both directions;   g)ptype C to Table 1/U.11;   h)ptype C to Table 2/U.11;   i)ptype C to Table 3/U.11.  H  6  A single terminal shall be capable of handling any of the signalling combinations shown in S 5 above and at least five of them simultaneously. 7  The nominal pulse duration (other than dial pulses) shown in Tables 1/U.25, 2/U.25 and 3/U.25 for Signal transmitted to telex have a  3 ms tolerance except where otherwise indicated. c4 P  STABLE 1/U.25  c4 P  Montage: Reprendre les originaux du Livre Rouge (sans corr.) S c4 P TABLE 2/U.24  c4 P  Montage: Reprendre les originaux du Livre Rouge (sans corr.) S c4 P TABLE 3/U.25  c4 P  Montage: Reprendre les originaux du Livre Rouge (sans corr.)