Extracellular spaces in connective tissues are therefore more abundant and contain vessels. In connective tissues, the extracellular space is termed the extracellular matrix because products of specialized cells accumulate here.
'J' channels are even improperly used on Fiber Cement Siding! Note: The actual examples below are not indicative of every siding job with 'J' Channels. All photos below are from the same area on the same wall of one house. This is the northeast side of a home located about 2 blocks from the NJ shore.
The DOCSIS standard describes how to send data over cable TV systems. A downstream cable channel sends data from the cable company headend to you. For historical reasons related to analog television, a channel is 6 MHz wide (or 8 MHz wide in Europe). Normally, this carries a video signal. For data channels, it carries data.