◆Based on self–copyright IC.
◆Ethernet transmit transparent through 1-4 E1 channels.
◆Ethernet interface 10M/100M, full/half duplex self-adapt, support VLAN.
◆support AUTO-MDIX, straight and crossover auto-adapt.
◆CRC alarm limitation can auto insulate bad-quality transmit channel by configuration,
and is single direction insulation. when ...