TIA-504-A-1998 电信-电话终端设备-重听使用的耳机式电话的磁场和听觉增益要求
TIA-504-A-1998 标准详情
- 标准号：TIA-504-A-1998
- 中文标题：电信-电话终端设备-重听使用的耳机式电话的磁场和听觉增益要求
- 英文标题：Telecommunications - Telephone Terminal Equipment - Magnetic Field and Acoustic Gain Requirements for Handset Telephones Intended for Use by the Hard of Hearing
- 标准类别：美国电信工业协会TIA
- 发布日期：1998-02-01
内容简介
TIA Engineering Standards and Publications are designed to serve the public interest through eliminating misunderstandings between manufacturers and purchasers, facilitating interchangeability and improvement of products, and assisting the purchaser
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