A lot has changed in NFPA 72 regarding fire alarm systems monitoring in the last two code cycles. Here is a chance to review your knowledge of the changes.

Outside plant fiber optic networks are getting faster. Upgrading older cable plants to higher speeds or testing new installations to ensure they can support future needs requires testing fibers more extensively—a process called fiber characterization. How well do you understand it?

When designing, building, testing or operating a fiber optic network, is “close enough” good enough?

A new type of local area network—passive optical local area networks (OLANs)—is becoming widely accepted because it costs less than half as much as traditional LANs. How much do you know about passive OLANs?