Re: Calling all VM techs!
Different areas have different layouts and designs. You say you want to know how the cabs work, I assume you mean the transmission side of things? Again different areas have different architectures. Some areas use SDH networks, some use PDH networks. And again, even 2 areas with let's say SDH, the design could be different. So for a basic overview research SDH and PDH, but it gets rather technical.
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