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SMP1323-999

SMP1323-999资料
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File Size : 116 KB Manufacturer:ALPHA Description:In DIGITAL NETWORK (DN) mode there are three channels transferred by the DV and CD ports. They are the B, C and D channels. The B1 and B2 channels each have a bandwidth of 64 kbit/s and are used for carrying PCM encoded voice or data. These channels are always transmitted and received through the DV port (Figures 3, 4, 5, 6). The C- channel, having a bandwidth of 64 kbit/s, provides a means for the system to control the DNIC and for the DNIC to pass status information back to the system. The C-channel has a Housekeeping (HK) bit which is the only bit of the C-channel transmitted and received on the line. The 2B+D channel bits and the HK bit are double-buffered. The D-channel can be transmitted or received on the line with either an 8, 16 or 64 kbit/s bandwidth depending on the DNICs mode of operation. Both the HK bit and the D- channel can be used for end-to-end signalling or low speed data transfer. In DUAL port mode the C and D channels are accessed via the CD port (Figure 7) while in SINGL port mode they are transferred through the DV port (Figures 5, 6) along with the B1 and B2 channels.

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型号：SMP1323-999 厂家：ALPHA 封装：SOT-0603 批号：数量：60000 说明：绝对全新原装大量现货，质量保证，欢迎来电查询


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