What type of cable is described as a communication general-purpose cable for in-wall and limited riser applications?

The description refers to general-purpose communication cables suitable for in-wall and limited riser applications, which is specifically designated by the CMG (General Purpose Cable). This type of cable is typically used in environments that require a lower level of fire resistance compared to riser-rated cables. CMG cables can be installed in areas such as walls, but they are not suitable for vertical spaces where they could potentially contribute to fire spread, hence the limited riser application.

Understanding the various categories is essential. CMR cables, for instance, are riser-rated and intended for vertical spaces, thus having a higher fire resistance. CMP cables are plenum-rated, suitable for air-handling spaces and designed to minimize flame spread and smoke production. CL2 cables refer to a specific in-wall rating that is also suitable for limited applications but does not meet the same general purpose designation as CMG.

In short, the CMG cable aligns precisely with the requirements mentioned in the question, making it the correct answer.