Multi-Conductor Cable: This cable consists of multiple conductors within the same outer jacket, allowing for the transmission of multiple signals or power.

Fire Alarm: This indicates that the cable is specifically designed for use in fire alarm systems. Such cables often need to meet certain fire safety standards to ensure reliability during emergency situations.

2C*18 AWG: This specifies the construction of the cable. It has 2 conductors, each with a gauge (AWG) of 18. The AWG 18 conductors have a specific diameter, and they are commonly used for power and signal transmission.

Solid BC: The conductors are made of solid Bare Copper (BC). Solid conductors are made from a single strand of wire.

PVC Insulation: The conductors are insulated with Polyvinyl Chloride (PVC), a common insulation material known for its flexibility and durability.

Unshielded: The cable is unshielded, meaning it doesn't have additional metallic shielding to protect against electromagnetic interference (EMI).

Red: The outer jacket of the cable is red in color. This is a visual indicator and can be useful for identification purposes.

305M/Roll: This specifies the length of the cable in the roll. In this case, it comes in a roll of 305 meters.

The BELDEN multi-conductor cable described is designed for fire alarm systems with specific features such as two solid copper conductors, PVC insulation, unshielded construction, and a red outer jacket. The 305-meter length is provided in a roll for convenience in installation.