M38 数字通信设备 标准查询与下载

ITU-T G.735-1993 工作在2048kbit/s并提供384kbit/s和/或64kbit/s同步数字接人的基群脉冲编码调制(PCM)复用设备的特性

This Recommendation gives the characteristics of a PCM multiplex equipment operating at 2048 kbit/s and providing one or several of the following internal digital access options bidirectional synchronous 64 kbit/s channels (see Figure l a/G.735);unidirectional synchronous 384 kbit/s channels (see Figure 1b/G.735)

CHARACTERISTICS OF PRIMARY PCM MULTIPLEX EQUIPMENT OPERATING AT 2048 kbit/s AND OFFERING SYNCHRONOUS DIGITAL ACCESS AT 384 kbit/s AND/OR 64 kbit/s

ITU-T G.737-1993 工作在2048kbit/s并提供384kbit/s和/或64kbit/s同步数字接入的外部接入设备的特性

This Recommendation gives the characteristics of equipment (external to PCM muldexes) operating at 2048 kbit/s

CHARACTERISTICS OF AN EXTERNAL ACCESS EQUIPMENT OPERATING AT 2048 kbit/s OFFERING SYNCHRONOUS DIGITAL ACCESS AT 384 kbit/s AND/OR 64 kbit/s

ITU-T G.738-1993 工作在2048kbit/s并提供320kbit/s和/或64kbit/s同步数字接入的脉冲编码调制(PCM)基群复用设备的特性

This Recommendation gives the characteristics of a PCM multiplex equipment operating at 2048 kbit/s

CHARACTERISTICS OF PRIMARY PCM MULTIPLEX EQUIPMENT OPERATING AT 2048 kbit/s AND OFFERING SYNCHRONOUS DIGITAL ACCESS AT 320 kbit/s AND/OR 64 kbit/s

ITU-T G.739-1993 工作在2048kbit/s并提供320kbit/s和/或64kbit/s同步数字接入的外部接入设备的特性

This Recommendation gives the characteristics of equipment (external to PCM muldexes) operating at 2048 kbit/s

CHARACTERISTICS OF AN EXTERNAL ACCESS EQUIPMENT OPERATING AT 2048 kbit/s OFFERING SYNCHRONOUS DIGITAL ACCESS AT 320 kbit/s AND/OR 64 kbit/s

ITU-T G.741-1993 二次群复用设备的一般考虑

different primary and second order multiplex equipments exist, depending upon the characteristics of different networks and the various types of signals to be transmitted in those networks

GENERAL CONSIDERATIONS ON SECOND ORDER MULTIPLEX EQUIPMENTS

ITU-T G.742-1993 工作在8448kbit/s并采用正码速调整的二次群数字复用设备

The second order digital multiplex equipment using positive justification, described below, is intended for use on digital paths between countries using 2048 kbit/s primary multiplex equipments

SECOND ORDER DIGITAL MULTIPLEX EQUIPMENT OPERATING AT 8448 kbit/s AND USING POSITIVE JUSTIFICATION

ITU-T G.742 FRENCH-1993 工作在8448 kbit/s并采用正码速调整的二次群数字复用设备

The second order digital multiplex equipment using positive justification, described below, is intended for use on digital paths between countries using 2048 kbit/s primary multiplex equipments.

SECOND ORDER DIGITAL MULTIPLEX EQUIPMENT OPERATING AT 8448 kbit/s AND USING POSITIVE JUSTIFICATION

ITU-T G.743-1993 工作在6312kbit/s并采用正码速调整的二次群复用设备

The second order digital multiplex equipment using positive justification described below, is intended for use on digital paths between countries using 1544 kbit/s primary multiplex equipments

SECOND ORDER DIGITAL MULTIPLEX EQUIPMENT OPERATING AT 6312 kbit/s AND USING POSITIVE JUSTIFICATION

ITU-T G.743 FRENCH-1993 工作在6312 kbit/s并采用正码速调整的二次群复用设备

The second order digital multiplex equipment using positive justification described below, is intended for use on digital paths between countries using 1544 kbit/s primary multiplex equipments.

SECOND ORDER DIGITAL MULTIPLEX EQUIPMENT OPERATING AT 6312 kbit/s AND USING POSITIVE JUSTIFICATION

ITU-T G.745-1993 工作在8448kbit/s并采用正/零/负码速调整的二次群数字复用设备

The second order digital multiplex equipment using positive/zero/negative justification, considered below, is intended for use on digital paths between countries using 2048 kbit/s primary multiplex equipments, such as the PCM multiplex equipment described in Recommendation G.732 or any identical equipment.

SECOND ORDER DIGITAL MULTIPLEX EQUIPMENT OPERATING AT 8448 kbit/s AND USING POSITIVE/ZERO/NEGATIVE JUSTIFICATION

ITU-T G.745 FRENCH-1993 工作在8448 kbit/s并采用正/零/负码速调整的二次群数字复用设备

L'équipement de multiplexage numérique du deuxième ordre utilisant la justification positive/nulle/négative, qui est décrit ci-dessous, est destiné à être employé sur des conduits numériques entre pays utilisant des équipements de multiplexage primaires à 2048 kbit/s tels que l'équipement de multiplexage MIC conforme à la Recommandation G.732, ou tout autre équipement identique.

SECOND ORDER DIGITAL MULTIPLEX EQUIPMENT OPERATING AT 8448 kbit/s AND USING POSITIVE/ZERO/NEGATIVE JUSTIFICATION

ITU-T G.746-1993 工作在6312kbit/s的二次群脉冲编码调制(PCM)复用设备的特性

The encoding law used is the μ-law as specified in Recommendation G.711. The sampling rate, load capacity and the code are also specified in that Recommendation.

CHARACTERISTICS OF SECOND ORDER PCM MULTIPLEX EQUIPMENT OPERATING AT 6312 kbit/s

ITU-T G.751-1993 工作在34368kbit/s三次群比特率和139264kbit/s四次群比特率并采用正码速调整的数字复用设备

There should be a 4th-order bit rate of 139 264 kbit/s in the digital hierarchy which is based on the 2nd-order bit rate of 8448 kbit/s.

DIGITAL MULTIPLEX EQUIPMENTS OPERATING AT THE THIRD ORDER BIT RATE OF 34 368 kbit/s AND THE FOURTH ORDER BIT RATE OF 139 264 kbit/s AND USING POSITIVE JUSTIFICATION

ITU-T G.751 FRENCH-1993 工作在34368 kbit/s三次群比特率和139264 kbit/s四次群比特率并采用正码速调整的数字复用设备

There should be a 4th-order bit rate of 139 264 kbit/s in the digital hierarchy which is based on the 2nd-order bit rate of 8448 kbit/s.

DIGITAL MULTIPLEX EQUIPMENTS OPERATING AT THE THIRD ORDER BIT RATE OF 34 368 kbit/s AND THE FOURTH ORDER BIT RATE OF 139 264 kbit/s AND USING POSITIVE JUSTIFICATION

ITU-T G.752-1993 以6312kbit/s二次群比特率为基础并采用正码速调整的数字复用设备的特性

various third- and higher-order multiplex equipments exist due to the differing characteristics of networks and signal sources in those networks

CHARACTERISTICS OF DIGITAL MULTIPLEX EQUIPMENTS BASED ON A SECOND ORDER BIT RATE OF 6312 kbit/s AND USING POSITIVE JUSTIFICATION

ITU-T G.752 FRENCH-1993 以6312 kbit/s的二次群比特率为基础并采用正码速调整的数字复用设备的特性

The CCITT, considering that various third- and higher-order multiplex equipments exist due to the differing characteristics of networks and signal sources in those networks; that, although studies will continue with the aim of reducing the differences between various systems, the existing situation cannot be changed in the near future.

CHARACTERISTICS OF DIGITAL MULTIPLEX EQUIPMENTS BASED ON A SECOND ORDER BIT RATE OF 6312 kbit/s AND USING POSITIVE JUSTIFICATION

ITU-T G.753-1993 工作在34368kbit/s并采用正/零/负码速调整的三次群数字复用设备

The third order digital multiplex system with positive/zero/negative pulse justification as given below is intended for digital connection between countries having the same type of justification using any second order digital systems at 8448 kbit/s.

THIRD ORDER DIGITAL MULTIPLEX EQUIPMENT OPERATING AT 34 368 kbit/s AND USING POSITIVE/ZERO/NEGATIVE JUSTIFICATION

ITU-T G.753 FRENCH-1993 工作在34368 kbit/s并采用正/零/负码速调整的三次群数字复用设备

The third order digital multiplex system with positive/zero/negative pulse justification as given below is intended for digital connection between countries having the same type of justification using any second order digital systems at 8448 kbit/s.

THIRD ORDER DIGITAL MULTIPLEX EQUIPMENT OPERATING AT 34 368 kbit/s AND USING POSITIVE/ZERO/NEGATIVE JUSTIFICATION

ITU-T G.754-1993 工作在139264kbit/s并采用正/零/负码速调整的四次群数字复用设备

The fourth order digital multiplex system with positive/zero/negative pulse justification as given below is intended for use on digital connection between countries having the same type of justification using any third order digital systems at 34 368 kbit/

FOURTH ORDER DIGITAL MULTIPLEX EQUIPMENT OPERATING AT 139 264 kbit/s AND USING POSITIVE/ZERO/NEGATIVE JUSTIFICATION

ITU-T G.754 FRENCH-1993 工作在139264 kbit/s并采用正/零/负码速调整的四次群数字复用设备

The fourth order digital multiplex system with positive/zero/negative pulse justification as given below is intended for use on digital connection between countries having the same type of justification using any third order digital systems at 34 368 kbit/s.

FOURTH ORDER DIGITAL MULTIPLEX EQUIPMENT OPERATING AT 139 264 kbit/s AND USING POSITIVE/ZERO/NEGATIVE JUSTIFICATION