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from the Mode S packet to the IS0 8208 packct sh:~ll be the
invci-sc of the processing defined in 5.2.5.1.9.1.
28/11/02
NO. 77
Annex 10 - Aeronautical Telecommunications Volume 111
5.2.5.2.10 RESET REQUEST
5.2.5.2.10.1 Translation into Mode S packets
5.2.5.2.10.1.1 Trunslated packet formur. Reception by the
XDLP reformatting process of an IS0 8208 RESET
REQUEST packet from the local DCE shall result in the
generation of a corresponding Mode S RESET REQUEST
packet as follows:
Fields shown in the packet format and not specified in the
following paragraphs shall be set as specified in 5.2.5.2.1.
5.2.5.2.10.1.2 Data packet type (DP). This field shall be
set to 0.
5.2.5.2.10.1.3 MSP packet type (MP). This field shall be
set to 1.
5.2.5.2.10.1.4 Supervisory packet (SP). This field shall be
set to 2.
5.2.5.2.10.1.5 Supervisory type (ST). This field shall be
set to 2.
5.2.5.2.10.1.6 Reset cause code (RC) and diagnostic
code (DC). The reset cause and diagnostic codes used in the
Mode S RESET REQUEST packet shall be as specified in
the IS0 8208 packet when the reset procedure is initiated by
the DTE. If the reset ptoccdurc originates with the DCE, the
DCE state tables shall specify the diagnostic fields coding. In
this case, bit 8 of the reset cause field shall be set lo 0.
5.2.5.2.10.2 Tmnslution into IS0 8208 packets. Reception
by the XDLP reformatting process of a Mode S RESET packet
from the local XDCE shall result in the generation of a
corresponding IS0 8208 RESET packct to the local DCE. The
translation from the Mode S packet to the IS0 8208 packet
shall be the inverse of the processing defined in 5.2.5.2.10.1.
5.2.5.3 PACKETS LOCAL TO THE
MODE S SUBNETWORK
Note.- Packers d&ned in this section do not result in the
generution of an I S 0 8208 packet.
5.2.5.3.1 MODE S RECEIVE READY
5.2.5.3.1.1 Packet format. The Mode S RECEIVE
READY packet arriving from an XDEP is not related to the
control of the DTWDCE interface and shall not cause the
generation of an IS0 8208 packet. The format of the packet
shall be as follows:
Fields shown in the packet format and not specified in the
following paragraphs shall be set as specified in 5.2.5.2.1. The
packet shall be processed as specified in 5.2.6.5.
5.2.5.3.1.2 Data packet type (DP). This field shall be set
to 0.
5.2.5.3.1.3 MSP packet type (MP). This field shall be set
to 1.
5.2.5.3.1.4 Supervisory packet (SP). This field shall be set
to 2.
5.2.5.3.1.5 Supervisoly type (ST). This field shall be set
to 0.
5.2.5.3.1.6 Packet receive sequence number (PR). This
field shall be set as specified in 5.2.6.4.4.
5.2.5.3.2 MODE S RECEIVE NOX READY
5.2.5.3.2.1 Packet format. The Mode S RECEIVE NOT
READY packet arriving from an XDLP is not relaled Lo the
control of the DTEIDCE interface and shall not cause the
generation of an IS0 8208 packct. The format of the packet
shall be as follows:
5.2.5.2.11 IS0 8208 RESTART REQUEST to Mode S
Note.- There ure tzo restart stutes in the Mode S packet 5.2.5.3.2.2 Data packet type (DP). This field shall be set
luyer protocol. to 0.
REQUEST from the local D Cs~hal l result in the reformatting
2811 1102
No. 77
CLEAR REQUEST. The receipt of an IS0 8208 RESTART
DP:l
process generaling a Mode S CLEAR REQUEST by ADLP or SN:6 PR:4
MP:1 SP:2
Mode S CLEAR REQUEST by GDLP for all SVCs associated
with the requesting DTE. The fields of the Mode S CLEAR Fields shown in the packet format and not spccified in the
REQUEST packers shall be set as specified in 5.2.5.2.5 and following paragraphs shall be set as specified in 5.2.5.2.1. The
5.2.5.2.6. packet shall be processed as specified in 5.2.6.6.
C H : ~
ST12 FILL20 or 2
Part l Anncx 10 - Aeronautical Telecommunications
5.2.5.3.2.3 MSP puckst type (MP). This field shall be set
to I.
5.2.5.3.2.4 S~ipervisopa~c ket (SP). This field shall be set
lo 2.
5.2.5.3.2.5 S~ipervisory type (ST). This field shall be set
to 1.
5.2.5.3.2.6 Packet receive sequence number (PR). This
field shall be sel as specified in 5.2.6.4.4.
5.2.5.3.3 MODE S ROUTE
5.2 5 3.3~1 Packet format. The format for the packet shall
be as follows:
Fields shown in thc packet format and not specified in the
following paragraphs shall be set as specificd in 5.2.5.2.1. The
packet shall only be generated by the GDLP. It shall be
processed by the ADLP as specified in 5.2.8.1.2 and shall have
a maximum size as specified in 5.2.6.4.2.1.
5.2.5.3.3.2 Data pucket type (DP). This field shall be set
to 0.
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