33.050.10 电话设备 标准查询与下载
共找到 265 条与 电话设备 相关的标准，共 18 页
Transmission characteristics and speech quality parameters of hands-free terminals - Amendment 1: New Annex B: Objective test methods for multi-talker scenarios
- ICS
- 33.050.10
- CCS
- 发布
- 2014-10
- 实施
Technical requirements and test methods for the universal wired headset or headphone interface of digital mobile terminals
- ICS
- 33.050.10
- CCS
- 发布
- 2014-02
- 实施
This part of IEC 62209 series is applicable to any wireless communication device capable of transmitting electromagnetic fields (EMF) intended to be used at a position near the human body, in the manner described by the manufacturer, with the radiating part(s) of the device at distances up to and including 200 mm from a human body, i.e. when held in the hand or in front of the face, mounted on the body, combined with other transmitting or non-transmitting devices or accessories (e.g. belt-clip, camera or Bluetooth add-on), or embedded in garments. For transmitters used in close proximity to the human ear, the procedures of IEC 62209-1:2005 are applicable. This standard is applicable for radio frequency exposure in the frequency range of 30 MHz to 6 GHz, and may be used to measure simultaneous exposures from multiple radio sources used in close proximity to human body. Definitions and evaluation procedures are provided for the following general categories of device types: body-mounted, body-supported, desktop, front-of-face, hand-held, laptop, limb-mounted, multi-band, push-to-talk, clothing-integrated. The types of devices considered include but are not limited to mobile telephones, cordless microphones, auxiliary broadcast devices and radio transmitters in personal computers. This International Standard gives guidelines for a reproducible and conservative measurement methodology for determining the compliance of wireless devices with the SAR limits. Because studies suggest that exclusion of features to represent a hand in human models constitutes a conservative case scenario for SAR in the trunk and the head, a representation of a hand is not included if the device is intended to be used next to the head or supported on or near the torso [73], [80]. This standard does not apply for exposures from transmitting or non-transmitting implanted medical devices. This standard does not apply for exposure from devices at distances greater than 200 mm away from the human body. IEC 62209-2 makes cross-reference to IEC 62209-1:2005 where complete clauses or subclauses apply, along with any changes specified.
Human exposure to radio frequency fields from hand-held and body-mounted wireless communication devices - Human models, instrumentation, and procedures - Part 2: Procedure to determine the specific absorption rate (SAR) for wireless communication devic...
- ICS
- 33.050.10
- CCS
- 发布
- 2013-09-09
- 实施
Telecommunications - Telephone Terminal Equipment - Resistance and Impedance Performance Requirements for Analog Telephones
- ICS
- 33.050.10
- CCS
- M40
- 发布
- 2013-01-01
- 实施
Telecommunications - Telephone Terminal Equipment - Transmission Requirements for Wideband Analog Telephones with Handsets
- ICS
- 33.050.10
- CCS
- 发布
- 2013-01-01
- 实施
Telecommunications - Telephone Terminal Equipment - Transmission Requirements for Wideband Analog Telephones with Handsets
- ICS
- 33.050.10
- CCS
- 发布
- 2013-01-01
- 实施
Telecommunications - Telephone Terminal Equipment - Transmission Requirements for Wideband Analog Telephones with Headsets
- ICS
- 33.050.10
- CCS
- 发布
- 2013
- 实施
Revises TIA 968-B to: - Update references to TSB-31-D and TSB-129-B; - Correct the titles of two figures; and - Correct several VDSL2 tables and figures.
Telecommunications - Telephone Terminal Equipment - Technical Requirements for Connection of Terminal Equipment to the Telephone Network
- ICS
- 33.050.10
- CCS
- M40
- 发布
- 2012
- 实施
Telecommunications - Telephone Terminal Equipment - Receive Volume Control Requirements for Digital and Analog Wireline Terminals
- ICS
- 33.050.10
- CCS
- M40
- 发布
- 2012
- 实施
This standard establishes telephone audio performance requirements, measurement methods, and test procedures for telephones with high receive gain and control of the receive frequency spectrum. This standard addresses audio performance in narrow band telephony frequencies using scientific methods and techniques derived or adapted from current telephone measurement standards. Narrow band is defined as the frequency range between 300 and 3400 Hz.
Telecommunications - Telephone Terminal Equipment - Amplified Telephone Measurement Procedures and Performance Requirements
- ICS
- 33.050.10
- CCS
- M40
- 发布
- 2012
- 实施
IEEE Standard Methods for Measuring Transmission Performance of Analog and Digital Telephone Sets, Handsets, and Headsets; Amendment 1
- ICS
- 33.050.10
- CCS
- M40
- 发布
- 2012
- 实施
本标准规定了电话机号盘上所使用的数字、字母和符号；规定了这些数字、字母和符号的排列方案以及“*”、“#”符号的图形样式等。 本标准适用于接入电话网使用的电话机和具有电话号盘功能的其他设备。
Arrangement of digits,letters and symbols on telephones and other devices that can be used for gaining access to a telephone network
- ICS
- 33.050.10
- CCS
- M40
- 发布
- 2011-06-01
- 实施
- 2011-06-01
This document provides specifications for Customer Premises Equipment (CPE) devices designed to automatically detect stutter dial tone (SDT) on an analog telephone line. TIA-968-B includes regulatory requirements related to automatic stutter dialtone detection devices for connection to the network. This standard includes criteria to meet the TIA-968-B requirements and additional requirements for the performance of these devices.
Telecommunications - Telephone Terminal Equipment - Stutter Dial Tone Detection Device - Performance Requirements
- ICS
- 33.050.10
- CCS
- M40
- 发布
- 2011
- 实施
This standard provides speakerphone acoustic performance requirements for Customer Premises Equipment (CPE) intended for analog connection to the Public Switched Telephone Network (PSTN). These requirements should ensure compatibility and satisfactory performance to the user in a high percentage of installations. Test measurement methods reference procedures in IEEE Std 1329 where applicable.
Telecommunications - Telephone Terminal Equipment - Transmission Requirements for Analog Speakerphones
- ICS
- 33.050.10
- CCS
- M40
- 发布
- 2011
- 实施
Human exposure to radio frequency fields from hand-held and body-mounted wireless communication devices - Human models, instrumentation, and procedures -- Part 2: Procedure to determine the specific absorption rate (SAR) for wireless communication devices
- ICS
- 33.050.10
- CCS
- 发布
- 2010-11-15
- 实施
- 2010-11-15
Method for measuring transmission performance of speakerphones
- ICS
- 33.050.10
- CCS
- M40
- 发布
- 2010-01-01
- 实施
Methods for Measuring Transmission Performance of Analog and Digital Telephone Sets, Handsets, and Headsets
- ICS
- 33.050.10
- CCS
- M40
- 发布
- 2010
- 实施
This standard provides practical methods for making laboratory measurements of electroacoustic characteristics of analog and digital telephones, handsets and headsets. The methods may also be applicable to a wide variety of other communications equipment, including cordless, wireless and mobile communications devices. Measurement results may be used to evaluate these devices on a standardized basis. Application is in the frequency range from 100 to 8,500 Hz.
Standard Methods for Measuring Transmission Performance of Analog and Digital Telephone Sets, Handsets, and Headsets
- ICS
- 33.050.10
- CCS
- M40
- 发布
- 2010
- 实施
This standard provides techniques for objective measurement of electroacoustic and voice switching characteristics of speakerphones that connect directly or indirectly to an analog or digital telephone network. Due to the various characteristics of speakerphones and the environments in which they operate, not all of the test procedures in this standard are applicable to all speakerphones. Application of the test procedures to atypical speakerphones should be determined on an individual basis.
Standard Method for Measuring Transmission Performance of Speakerphones
- ICS
- 33.050.10
- CCS
- M40
- 发布
- 2010
- 实施
This standard defines measurement procedures and performance requirements for the handset generated audio band magnetic noise of wireline telephones. A telephone complies with this standard if it meets the requirements in this standard when manufactured and can be expected to continue to meet these requirements when properly used and maintained.
Telecommunications - Telephone Terminal Equipment - Handset - Magnetic Measurement Procedures and Performance Requirements
- ICS
- 33.050.10
- CCS
- M40
- 发布
- 2010
- 实施
