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频率范围3KHz～148.5KHz的低压电气设备的信号传输.第2-3部分:电源和配电器用主要通讯设备和在3kHz～95kHz频率范围操作的系统的抗扰度要求
Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz - Part 2-3 : immunity requirements for mains communications equipment and systems operating in the range of frequencies 3 kHz to 95 kHz and intended for use by electricity suppliers and distributors.
参考页数：8P.;A4
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频率范围3KHz～148.5KHz的低压电气设备的信号传输.第2-2部分:工业环境中使用的主要通讯设备和在95kHz～148.5kHz频率范围操作的系统的抗扰度要求
Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz - Part 2-2 : immunity requirements for mains communications equipment and systems operating in the range of frequencies 95 kHz to 148,5 kHz and intended for use in industrial environments.
参考页数：8P.;A4
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欧洲蜂窝式数字电信系统(第2段).编号、寻址和识别(GSM 03.03)
European digital cellular telecommunications system (phase 2). Numbering, addressing and identification (GSM 03.03).
参考页数：17P.;A4
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蜂窝式数字通信系统(第2段).有关呼叫移动用户路由选择的信令要求(GSM 03.04)
Digital cellular telecommunications system (phase 2). Signalling requirements relating to routeing of calls to mobile subscribers (GSM 03.04).
参考页数：18P.;A4
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频率范围3KHz至148.5KHz和1.6 MHz至30 MHz的低压电气设备的信号传输.第4-7部分:便携式低压退耦过滤器.安全要求
Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz and from 1,6 MHz to 30 MHz - Part 4-7 : portable low voltage decoupling filters - Safety requirements.
参考页数：55P.;A4
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电话自动交换网铃流和信号音
Ringing and tone for telephone automatic switching network
价格：￥0.00
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电话自动交换网用户信号方式
Subscriber line signaling system for telephone automatic switching network
价格：￥0.00
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电话自动交换网多频记发器信号方式
Multi frequency register signaling system for telephone automatic switching network
价格：￥0.00
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电信术语.电信中的交换和信令
Terminology for telecommunication switching and signalling telecommunication
价格：￥0.00
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媒体网关控制协议（MGCP）
Media Gateway Control Protocol(MGCP)
价格：￥0.00
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