The "Redundant
COM" (patent pending) operation mode can be used to set
up a redundant LAN between the CN2600's COM ports and the host
computer. The redundant structure involves using the CN2600's
two LAN ports to set up two independent LANs that connect the
CN2600 to the host computer. If either of the two LANs fails,
the other LAN will continue transmitting packets between the
serial devices and the host, with the data transmitted through
the CN2600. One of the biggest advantages of using Moxa's Redundant
COM mode is that the "switching time" is zero. What
this means is that if one of the LANs fails, data transmission
between the PC host the serial devices will not be interrupted.