entire span between two optical devices. Includes all cable, connections, and splices. Local Area Network (LAN) - A network that remains within one facility (department, office... the public telecommunications system. Attenuation (Insertion Loss) - Loss of power. Attenuation is usually measured in db loss per length of cable (ex. 31.0 db/100Ft.). Attenuation... transmission method where direct current signals are placed directly onto the transmission medium (cable). Ethernet is a baseband network type, hence, the "Base" in 10Base-T, etc. Baud Rate...