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GB/T 11591-2011: Packet assembly/disassembly facility (PAD) in a public data network
Status: Valid GB/T 11591: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 11591-2011 | English | 514 |
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4 days [Need to translate]
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Packet assembly/disassembly facility (PAD) in a public data network
| Valid |
GB/T 11591-2011
|
| GB/T 11591-1999 | English | 919 |
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4 days [Need to translate]
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Packet assembly/disassembly facility (PAD) in a public data network
| Obsolete |
GB/T 11591-1999
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| GB/T 11591-1989 | English | RFQ |
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3 days [Need to translate]
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Packet assembly/disassembly facility (PAD) in a public data network
| Obsolete |
GB/T 11591-1989
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PDF similar to GB/T 11591-2011
Basic data | Standard ID | GB/T 11591-2011 (GB/T11591-2011) | | Description (Translated English) | Packet assembly/disassembly facility (PAD) in a public data network | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | M32 | | Classification of International Standard | 33.040.40 | | Word Count Estimation | 26,289 | | Date of Issue | 2011-07-29 | | Date of Implementation | 2011-11-01 | | Older Standard (superseded by this standard) | GB/T 11591-1999 | | Adopted Standard | ITU-T X.3-2000, IDT | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 12 of 2011 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | GB/T 11591-2011: Packet assembly/disassembly facility (PAD) in a public data network---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Packet assembly/disassembly facility (PAD) in a public data network
ICS 33.040.40
M32
National Standards of People's Republic of China
Replacing GB/T 11591-1999
Public data network packet assembly and disassembly facility (PAD)
(ITU-TX.3.2000, IDT)
Issued on. 2011-07-29
2011-11-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Introduction Ⅲ
Introduction Ⅳ
1 PAD basic functions and user-selectable features Description 1
1.1 PAD features and operating characteristics of 1
1.2 PAD operation 1
Function 1.3 PAD 1
The user can select the functions provided 1.4 PAD 1
Characteristics 2 PAD parameter 4
3 PAD parameters and their possible values list 5
3.1 with a character to re-call PAD 5
3.2 Loopback 5
3.3 Data forwarding character selection 5
3.4 idle timer delay option 5
3.5 auxiliary equipment control 6
Control 3.6 PAD command signals and PAD service signals 6
3.7 Upon receipt of Select "off" signal from the start-stop mode DTE, PAD operation 6
Output dropped 3.8 6
Enter after filling 3.9 7
3.10 fold line 7
3.11 7 bit rate
3.12 start-stop mode DTE to PAD flow control 8
Enter to insert a line break after 8 3.13
3.14 Wrap filled 8
3.15 8 Editor
3.16 8 character deletion
Remove row 9 3.17
3.18 9 line display
3.19 Editing PAD service signals 9
3.20 Loopback shield 9
3.21 parity processing 10
Page 10 3.22 Wait
The length of the input field 10 3.23
3.24 End 10
Select 10 3.25 Extended data forwarding signals
Interrupt 11 3.26 Display
3.27 Display interrupt confirmation 11
11 3.28 difference Character Encoding
3.29 Extended loopback shield 12
3.30 The default packet size selection 12
Appendix A (informative) terms, terminology and Chinese table 19
Foreword
This standard is based on GB/T 1.1-2009 drafting rules.
This standard replaces GB/T 11591-1999 "public data network packet assembly and disassembly (PAD) facility."
This standard compared with GB/T 11591-1999 main changes are as follows.
--- 3.6 in Table 1 and the corresponding increase at the PAD service commands for Chinese extended dialogue mode;
--- Increased 3.30, an increase of the parameter reference number "30" of the content;
--- 3.30 based on the increased content, in Table 1, the corresponding increase in new parameter. the default packet size and its optional value.
This standard uses the translation method is equivalent to using ITU-TX.3.2000 "public data network packet assembly and disassembly (PAD) facility" (in English).
Correspondence between the consistency of the standards of international documents and normative references of the following documents.
--- GB/T 11590 public data networks and ISDN network of international data transmission services and optional user facilities (GB/T 11590-
2011, ITU-TX.2.2000, IDT);
--- GB/T 11595 and connected to public data networks of the packet data terminal equipment (DTE) and data circuit - terminating with a dedicated circuit
Interface to access equipment (DCE) between (GB/T 11595-1999, ITU-TX.25.1996, IDT);
--- GB/T 11596 start-stop mode data terminal into the country's public data network packet assembly and disassembly facility (PAD) in the DTE/DCE's
The interface between the (GB/T 11596-1999, ITU-TX.28.1997, IDT);
--- GB/T 11597 packet assembly and disassembly (PAD) facility and a packet mode DTE or another PAD exchange of control information between the user and
Protocol data (GB/T 11597-1999, ITU-TX.29.1997, IDT).
The standard proposed by the Ministry of Industry and Information Technology of the People's Republic of China.
The standard by the China Communications Standards Association.
This standard was drafted. the Ministry of Industry and Information Technology and Telecommunications Research Institute, Shanghai Bell Co., Ltd.
The main drafters of this standard. Disaster - Beijing, Chen Cheng.
This standard was first released in December 1989, revised for the first time in 1999, this is the second revision.
Introduction
Many countries have established to provide packet-switched data transmission services for public data network, which is necessary to induce the public to develop some criteria
Telephone network, circuit-switched public data networks and leased circuits accessing a packet switched public data networks.
ITU-T
Whereas.
a) ITU-TX.1 and ITU-TX.2 provides public data networks and user service class user facilities, ITU-TX.96 provisions
Call signal, ITU-TX.29 specifies the packet assembly and disassembly (PAD) facility and a packet mode DTE or another PAD of
Communication protocol between, ITU-TX.28 provides start-stop mode DTE access the PAD DTE/DCE interface;
b) ITU-TX.92 provides packet-switched data transmission services on the logical link control, especially considering ITU-TX.92
The case contains a PAD;
c) the urgent requirements of the PSTN, public switched data network or leased circuits using the start-stop mode DTE and can use the packet
Switched data services interworking between the virtual call facility of the packet mode DTE or another start-stop mode DTE;
d) transmission and reception will be in the form of characters start-stop mode DTE operation or "off" signal network control information and user information;
e) DTE grouped by mode of operation will comply with the form of packets sent and received ITU-TX.25 network control signal and user
information;
f) Although not mandatory packet mode DTE using the control procedures for PAD functions, but some may want to control the packet mode DTE
Make certain functions of PAD.
Unanimously recommended.
a) for functional and operational characteristics of start-stop mode DTE, the PAD executed, will be available in the basic functions of the l Chapter "PAD and user
Description of selected functions "within the description;
PAD operation b) for the start-stop DTE should depend on the possible values of PAD parameters known internal variables, these PAD parameters
In Chapter 2, "PAD parameter characteristics" Description;
PAD parameter c) for start-stop mode DTE and the possible values for these parameters should be in Chapter 3, "PAD parameters and possible values at a glance
Table "Those parameters and values listed;
d) future research will expand 1, 2 and PAD performance described in Chapter 3, with the start-stop mode DTE is not the type to make it non-packet
DTE interworking.
Public data network packet assembly and disassembly facility (PAD)
1 PAD basic functions and user-selectable functions described
Features and operating characteristics of the 1.1 PAD
PAD performs many functions and have many operational characteristics. Some of these features make start-stop mode DTE and (or) the packet mode DTE (or
Distal PAD) PAD can select the configuration so that the PAD operation to fit the characteristics of the start-stop mode DTE and may be put to use.
1.2 PAD operation
PAD operation depends on the value of PAD parameter is called a set of internal variables, each of the start-stop mode DTE set parameters in this group is the only
Li, the current value of each PAD parameter specifies the operating characteristics of their related functions.
1.3 PAD function
1.3.1 Basic Functions
--- Each character grouping;
--- User data field split the packet;
--- Establish a virtual call handling, clear, reset and interrupt procedures;
--- Generating traffic signals;
--- When the conditions are suitable, such as packet full or idle timer expires, there is a packet forwarding mechanism;
--- Have a mechanism to send data to the start-stop mode DTE characters, including play, stop and parity symbols;
--- Handling mechanism "off" signal from the start-stop mode DTE;
--- Edit PAD command signal;
--- Set and read PAD parameter mechanisms existing values.
1.3.2 Optional Features
--- Selection criteria outline mechanisms;
--- Automatic detection of the data rate, code, parity bit and operational characteristics;
--- Between the start-stop mode DTE and the remote DTE to another DTE mechanism virtual call request.
Users can choose to provide 1.4 PAD function
Many packet-switched data network facilities, or by prior agreement, or you can specify for each call, ITU-TX.2 for the first 20 to 22
Start-stop mode DTE user service category describes use. In addition, it may also be agreed in advance with the following features.
--- Select the initial outline;
--- Modem type PAD use, speed, and parity of the code;
Other operating characteristics --- DTE's.
This standard provides a number of relevant parameters provides the following functions.
Practice management --- start-stop mode DTE and a PAD between;
--- Management packet assembly and disassembly;
--- Some additional features and operating characteristics of the start-stop mode DTE's;
--- Some additional features and videotex application-related.
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