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Standard
| DL/T 888-2004 Electric power system dispatching exchange specification of DTMF signalling (English Version) |
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Detail of DL/T 888-2004
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Introduction of DL/T 888-2004
本标准规定了电力系统调度交换机使用的电力DTMF信令的编码方式、技术指标和发送顺序，包括记发器信号和相应的线路信号两部分。
本标准适用于电力系统调度交换网局间E/M中继电路和数字中继电路。其他专用调度交换网也可参照采用。
Contents of DL/T 888-2004