Publication: Magyar Közlöny
Issue: MK-2009-104 (Year: 2009, Number: 104)
Era: 2004-2010
Section: 
Paragraph Index: 1967

b) if the slave station did not receive all of the transmission properly, it shall send an optional prefix followed by NAK. 8.6.3.5.3.3 If the master station receives no reply or an invalid reply, it shall request a reply from the same or another slave station until all selected stations have been properly accounted for. 8.6.3.5.3.4 If the master station receives a negative reply (NAK) or, after N ≥ 0 repeat attempts, no reply, it shall repeat that transmission to the appropriate slave stations at a later opportunity. 8.6.3.5.3.5 After all messages have been sent and delivery verified, the master station shall proceed with link termination. 8.6.3.5.4 LINK TERMINATION PROCEDURE 8.6.3.5.4.1 The terminate function, negating the master or slave status of all stations and returning master status to the control station, shall be accomplished by the master station transmitting EOT. 8.6.3.6 DESCRIPTION OF SYSTEM CATEGORY B System category B is one in which two stations are on a point-to-point, full-duplex link and each station has the capability to maintain concurrent master and slave status, i.e. master status on its transmit side and slave status on its receive side and both stations can transmit simultaneously. 8.6.3.6.1 LINK ESTABLISHMENT PROCEDURE 8.6.3.6.1.1 To establish the link for message transfers (from the calling to the called station), the calling station shall request the identity of the called station by sending an identification supervisory sequence consisting of a DLE character followed by a colon character, an optional prefix, and ENQ. Annex 10 — Aeronautical Communications Volume III 22/11/07 I-8-10 8.6.3.6.1.2 The called station, upon detecting ENQ, shall send one of two replies:

Source: https://magyarkozlony.hu/hivatalos-lapok/1f7c6b0e16b4b71a92e5ad24416008bbe2e26aab/dokumentumok/710811d1f7f958a2990684d0cbf918e84f5497e5/letoltes