Connections to the Megablock are made using pluggable screw

terminal type connectors. This allows wire terminations to be made to

the individual connectors which are then plugged into the Megablock.

Devices can then be easily connected and disconnected during

commissioning. After commissioning, retaining screws are tightened

to secure each connector to the Megablock.

Short circuit protection Megablocks are available with built-in

SpurGuard™ short circuit protectors which prevent a short circuit in

any of the individual AS-i devices or spur cable runs from bringing the

entire network segment down. A red LED near each spur connection

indicates that a spur is shorted and is in overcurrent mode.

Internal Fault Indication

A red Fault LED is included on SpurGuard™ protected units. The red

Fault LED is lit if the AS–i Megablock diagnoses an internal failure.

The AS–i network continues to function in this condition, however, the

SpurGuard™ protection is not available.

* Megablocks contain active circuit components but do not contain an AS-i

chip or perform active repeater functions such as signal reconstruction or

amplification.