Standard Code | Standard Title | Standard Class | Order |
---|---|---|---|
GB/T 34991-2017 |
12.5kHz TDMA channel based professional digital trunking communication system—Technical specifications for physical layer and data link layer of air interface 基于12.5kHz信道的时分多址(TDMA)专用数字集群通信系统 空中接口物理层及数据链路层技术规范 |
China National Standards Specification 12 channel |
English PDF |
GB/T 34992-2017 |
12.5kHz TDMA channel based professional digital trunking communication system—Technical specifications for call control layer of air interface 基于12.5kHz信道的时分多址(TDMA)专用数字集群通信系统 空中接口呼叫控制层技术规范 |
China National Standards Specification 12 channel |
English PDF |
GB/T 13137-1991 |
Specification for 12-channel telephone carrier terminal equipment used on the symmetric pains of 2.6/9.5 mm coaxial cable 2.6/9.5 mm综合中同轴电缆高频四芯组或高频线对12路载波电话终端设备技术条件 |
China National Standards Specification 12 channel |
English PDF |
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