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时间:2010-07-20 23:46来源:蓝天飞行翻译 作者:admin
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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).T he 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 procedure 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 to 0.
5.2.5.2.10.2 Translation into IS0 8208 puckets. 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 packet to the local DCE.
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 MSPpacket 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 Supewisoly 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.
7/11/96
No. 71
Part I Annex 10 - Aeronautical Telecomrnu~icaiions
5.2.5.3.2 MODE S RECEIVE NOT READY 5.2.5.3.3.4 Supervisory p d e t (SP). This field shall be
set to 3.
5.2.5.3.2.1 Packet format. The Mode S RECEIVE NOT
READY packet arriving from an XDLP is not related to the 5.2.5.3.3.5 Supewisoiy type (ST). This field shall be set
control oi the D T ~ C Einte rface and shall not cause the '-
generation of an IS0 8208 packet. The format of the packet 5.2.5.3.3.6 Optionflag (OF). This field shall indicate the
shall be as follows: presence of the optional data length (ODL) and optional data
(OD) fields. OF shall be set to 1 if ODL and OD are present.
Otherwise it shall be set to 0.
5.2.5.3.3.7 Route table length (RTL). This field shall
indicate the size of the route table, expressed in bytes.
Fields shown in the packet format and not specified in the 5-2-5-3-3-8 Route (RT)
following paragraphs shall be set as specified in 5.2.5.2.1. The
packet shall be processed as specified in 5.2.6.6. 5.2.5.3.3.8.1 Contents. This table shall consist of a
variable number of entries each containing information speci-
5.2.5.3.2.2 Data packet type (DP). This field shall be set fying the addition or deletion of entries in the II code-~TE
to 0. cross-reference table (5.2.8.1.1)-
5.2.5.3.3.8.2 Entries. Each entry in the route table shall
5.2*5.3.2*3 MSPpacket type tMP)- This be set consist of the 11 code, a list of up to 8 ground DTE addresses,
to 1. and a flag indicating whether the resulting II code-DTE pairs
shall be added or deleted from the 11 code-DTE cross-
5-2-5.3.2-4 Supervisoiy Packet (JP). This field shall be reference table. A route table entry shall be coded as follows:
set to 2.
5.2.5.3.2.5 Supervisory type (ST). This field shall be set
to 1.
5.2.5.3.3.8.3 Interrogator identifier (II). This field shall
5.2.5.3.2.6 Packet receive sequence number (PR). This contain the Cbit II code.
field shall be set as specified in 5.2.6.4.4.
5.2.5.3.3.8.4 Add/delete fIag (AD). This field shall
indicate whether the I1 code-DTE pairs shall be added
5.2.5.3.3 MODE S ROUTE
11:4 AD: 1 DAL:v
(AD = 1) or deleted (AD = 0) from the II code-DTE crossreference
table.
ND:3
5.2.5.3.3.1 Packet format. The format for the packet
shall be as follows: 5.2.5.3.3.8.5 Number of DTE addresses (ND).T his field
shall be expressed in binary in the rahge from 0 to 7 and shall
indicate the number of DTE addresses present in DAL minus
1 (in order to allow from 1 to 8 DTE addresses).
RTL:8
5.2.5.3.3.8.6 DTE 'address list (DAL). This list shall
consist of up to 8 DTE addresses, expressed in 8-bit binary
representation.
Fields shown in the packet format and not specified in the 5.2.5.3.3.9 Optional data length (ODL). This field shall
following paragraphs shall be set as specified in 5.2.5.2.1. The contain the length in bytes of the following OD field.
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 5.2.5.3.3.10 Optional data (OD). This vasiabk length
have a maximum si,ze as specified in 5.2.6.4.2.1. field shall contain optional data.
5.2.5.3.3.2 Data packet type (DP). This field shall be set
to 0. 5.2.5.3.4 MODE S CLEAR CONFIRMATION BYADLP
RT:v 0D:v
5.2.5.3.3.3 MSPpacket type (MP). This field shall be set 5.2.5.3.4.1 Packet format. The format for this packet
 
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