M42 通信线路设备 标准查询与下载



共找到 669 条与 通信线路设备 相关的标准,共 45

Filling compounds and flooding compounds for telecommunication cable and optical fiber cable.Part4:Flooding compounds

ICS
33.040.50
CCS
M42
发布
2000-09-12
实施
2001-02-01

In this Recommendation, the expression "Administration" is used for conciseness to indicate both a telecommunication administration and a recognized operating agency.

A measuring signal (multitone test signal) for fast measurement of amplitude and phase for telephone type circuits

ICS
CCS
M42
发布
2000-06-05
实施

In this Recommendation, the expression "Administration" is used for conciseness to indicate both a telecommunication administration and a recognized operating agency.

A measuring signal (multitone test signal) for fast measurement of amplitude and phase for telephone type circuits

ICS
CCS
M42
发布
2000-06-05
实施

In this Recommendation, the expression "Administration" is used for conciseness to indicate both a telecommunication administration and a recognized operating agency.

A measuring signal (multitone test signal) for fast measurement of amplitude and phase for telephone type circuits

ICS
CCS
M42
发布
2000-06-05
实施

This ITU-T Recommendation is intended to provide guidance on the conversational impairments which are not covered by the E-model and which are thus not included in ITU-T Recommendation G.108 [3]. Those impairments have been investigated thoroughly by ITU-T during the study period 1997-2000.

Guidance for Assessing Conversational Speech Transmission Quality Effects Not Covered by the E-Model Series G: Transmission Systems and Media Digital Systems and Networks International Telephone Connections and Circuits - General Definitions Study Group 1

ICS
CCS
M42
发布
2000-05-01
实施

Use of Head and Torso Simulator (HATS) for Hands-Free Terminal Testing Series P: Telephone Transmission Quality, Telephone Installations, Local Line Networks Objective Measuring Apparatus Study Group 12

Use of Head and Torso Simulator (HATS) for Hands-Free Terminal Testing Series P: Telephone Transmission Quality, Telephone Installations, Local Line Networks Objective Measuring Apparatus Study Group 12

ICS
CCS
M42
发布
2000-05-01
实施

This ITU-T Recommendation is intended to provide guidance on the conversational impairments which are not covered by the E-model and which are thus not included in ITU-T Recommendation G.108 [3]. Those impairments have been investigated thoroughly by ITU-T during the study period 1997-2000.

Guidance for Assessing Conversational Speech Transmission Quality Effects Not Covered by the E-Model Series G: Transmission Systems and Media Digital Systems and Networks International Telephone Connections and Circuits - General Definitions Study Group 1

ICS
CCS
M42
发布
2000-05-01
实施

This Recommendation deals with dimensioning methods for a set of circuit groups handling multi- slot bearer services which consist of first-choice groups and an overflow group to which overflow traffic from the first-choice groups are offered. For this purpose, this Recommendation provides example methods for calculating peakedness of the overflow traffic and example methods for calculating individual call blocking probabilities of the overflow group.

Dimensioning at a Circuit Group with Multi-Slot Bearer Services and Overflow Traffic Study Group 2

ICS
CCS
M42
发布
2000-03-01
实施

This Recommendation provides reference connections and network configurations for IP access networks for the provision of IP telephony and TCP/IP-supported data services such as web- browsing, e-mail, file transfer and high-speed data access. Other services such as video telephony, video-on-demand, are for further study. Also, only point-to-point reference connections are considered in this release of the Recommendation.

Reference Connections for Traffic Engineering of IP Access Networks Study Group 2; 16 pp

ICS
CCS
M42
发布
2000-03-01
实施

This Recommendation provides reference connections and network configurations for IP access networks for the provision of IP telephony and TCP/IP-supported data services such as web- browsing, e-mail, file transfer and high-speed data access. Other services such as video telephony, video-on-demand, are for further study. Also, only point-to-point reference connections are considered in this release of the Recommendation.

Reference Connections for Traffic Engineering of IP Access Networks Study Group 2; 16 pp

ICS
CCS
M42
发布
2000-03-01
实施

This Recommendation deals with dimensioning methods for a set of circuit groups handling multi- slot bearer services which consist of first-choice groups and an overflow group to which overflow traffic from the first-choice groups are offered. For this purpose, this Recommendation provides example methods for calculating peakedness of the overflow traffic and example methods for calculating individual call blocking probabilities of the overflow group.

Dimensioning at a Circuit Group with Multi-Slot Bearer Services and Overflow Traffic Study Group 2

ICS
CCS
M42
发布
2000-03-01
实施

The following Table of Figures and Table of Tables should be inserted under "Contents".

Application of the E-model: A planning guide

ICS
CCS
M42
发布
2000
实施

Operations, Administration, Maintenance, and Provisioning (OAM&P) -Terminating Test Line Access and Capabilities

ICS
33.040.50
CCS
M42
发布
2000
实施

This Recommendation applies to transmission planning of speech transmission quality for end-to- end intra- and inter-network connections. It should be considered as a tutorial and illustration for the planning of networks with respect to the speech transmission quality of narrow-band 3.1 kHz real time telephony via handsets. Networks designed according to this Recommendation will also provide sufficiently high speech quality for the transmission of announcements and stored speech.

Application of the E-Model: A Planning Guide Series G: Transmission Systems and Media Digital Systems and Networks International Telephone Connections and Circuits - General Definitions Study Group 12; 141 pp; Covering Note December 7 2000

ICS
CCS
M42
发布
1999-09-30
实施

This Recommendation applies to transmission planning of speech transmission quality for end-to- end intra- and inter-network connections. It should be considered as a tutorial and illustration for the planning of networks with respect to the speech transmission quality of narrow-band 3.1 kHz real time telephony via handsets. Networks designed according to this Recommendation will also provide sufficiently high speech quality for the transmission of announcements and stored speech.

Application of the E-Model: A Planning Guide Series G: Transmission Systems and Media Digital Systems and Networks International Telephone Connections and Circuits - General Definitions Study Group 12; 141 pp; Covering Note December 7 2000

ICS
CCS
M42
发布
1999-09-30
实施

MIL-C-55486B, including Amendment 1, dated 25 February 1988, is inactive for new design and is no longer used, except for replacement purposes.

CABLE ASSEMBLY TELEPHONE CX-4566( )/G& CX-4760( )/U

ICS
CCS
M42
发布
1999-09-28
实施

This Recommendation provides transmission planning guidelines for voiceband services over connections that include Internet and PSTN segments, i.e. hybrid InternetPSTN connections. In particular, "voice over the Internet" or "Voice over Internet Protocol" (VoIP) connections are considered, where at least part of the connection is over an Internet Protocol (IP) network. PSTN-only connections (i.e. connections that begin, end, and are carried only on the PSTN) are considered as the reference against which the performance of other connections is compared.

Transmission Planning for Voiceband Services over Hybrid Internet/PSTN Connections - Series G: Transmission Systems and Media Digital Systems and Networks International Telephone Connections and Circuits - Transmission Plan Aspects of Special Circuits and

ICS
CCS
M42
发布
1999-09-01
实施

This Recommendation provides transmission planning guidelines for voiceband services over connections that include Internet and PSTN segments, i.e. hybrid InternetPSTN connections. In particular, "voice over the Internet" or "Voice over Internet Protocol" (VoIP) connections are considered, where at least part of the connection is over an Internet Protocol (IP) network. PSTN-only connections (i.e. connections that begin, end, and are carried only on the PSTN) are considered as the reference against which the performance of other connections is compared.

Transmission Planning for Voiceband Services over Hybrid Internet/PSTN Connections - Series G: Transmission Systems and Media Digital Systems and Networks International Telephone Connections and Circuits - Transmission Plan Aspects of Special Circuits and

ICS
CCS
M42
发布
1999-09-01
实施

本标准适用于9953 280kbit/s速率的SDH光缆传输系统的终端设备。规定了在我国公用电信网中使用STM-64光线路终端设备的主要技术要求。专用电信网中的类似设备亦可参照本标准。

Technique criterion for STM-64 optical line termina equipment

ICS
33.040.50
CCS
M42
发布
1999-04-19
实施
1999-10-01

本标准规定了接入网用PDH光端机的技术要求和测试方法。 本标准适用于采用PDH光传输技术的接入网。

Technical condition for PDH optical line terminals used in access neteork

ICS
33.040.50
CCS
M42
发布
1999-04-18
实施
1999-10-01



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