论文部分内容阅读
一、X系统常用的中继信号方式的种类及用途在郑州局现行软件版本中,X系统常用的中继信号方式有:a、数字信号方式:数字型TS16,数字型TS16+MFC。数字型信号方式适用于采用PCM传输系统的数字中继。TS16信令标志的编码结构如表1、2所示。b、单频信号方式:单频2100Hz,单频2600Hz和单频2600Hz+MFC。单频2100Hz用于采用OSS台(程控话务台)时的双向人工电路。单频2600Hz用于通过载波通道与机电式交换机连接,并与JZZ配合使用。单频2600Hz+MFC用于采用载波通道的X系统之间。单频信号的结构如表3、4所示。C、环路信号
I. Types and Uses of Relay Signals Used in X Systems In the current software version of Zhengzhou Bureau, the relay signals commonly used in X systems are as follows: a. The digital signals are: digital TS16 and digital TS16 + MFC. Digital signal type is suitable for digital relay using PCM transmission system. The coding structure of TS16 signaling flags is shown in Table 1 and Table 2. b, single-frequency signal mode: single-frequency 2100Hz, single-frequency 2600Hz and single-frequency 2600Hz + MFC. Single-frequency 2100Hz Bi-directional artificial circuit for use with OSS station (program consoles). The single-frequency 2600Hz is used to connect to the electromechanical switch through the carrier channel and to work with JZZ. Single-frequency 2600Hz + MFC for carrier channel between X systems. Single-frequency signal structure shown in Table 3,4. C, loop signal