User's Manual

Table Of Contents
Users Manual of IGS series
12
Digital Input and Digital Output for External Alarm
The Industrial L2+ Managed Switch supports Digital Input and Digital Output on its upper panel. The external alarm enables
users to use Digital Input to detect external devices status (such as door intrusion detector), and send event alarm to the
administrators. The Digital Output could be used to alarm the administrators if the Industrial L2+ Managed Switch port is
link-down, link-up or power-dead.
Robust Layer 2 Features
The Industrial L2+ Managed Switch can be programmed for advanced switch management function, such as dynamic port link
aggregation, Q-in-Q VLAN, Multiple Spanning Tree Protocol (MSTP), Layer 2/4 QoS, bandwidth control and IGMP/MLD
snooping. The Industrial L2+ Managed Switch allows the operation of a high-speed trunk combining multiple ports.