SpurGuard™ is a device-port, short circuit protection technique

that minimizes susceptibility to single points of failure. The

Megablocks come with built-in SpurGuard™ protectors that prevent

a short circuit in any of the individual transmitters or spur cable runs

from bringing the entire fieldbus segment down. A red LED near

each spur connection indicates that a spur is shorted and is in “over

current” mode.

For applications using flameproof certified devices, the F2xx-XE

Megablocks are designed to meet the requirements for increased

safety for installation in an Ex e junction box in Zone 1. See the F300

Series Megablock datasheet for applications in safe areas, Zone 2

and Division 2 hazardous areas.

To select the Megablock for your application see the Ordering

Information section of this document.