1) Standards: IEEE 802.3 10base-T Ethernet, IEEE802.3u 100base-TX fast Ethernet 2) ANSI/IEEE Std 802.3 Nway auto-negotiations 3) IEEE802. 3 frame types: transparent 4) IEEE802. 3 MAC layer frame size: 64-1518B 5) Topology: star 6) Protocol: CSMA/CD 7) Data transfer rate: Ethernet: 10Mbps (half duplex), 20Mbps (full duplex) 8) Fast Ethernet: 100Mbps (half duplex), 200Mbps (full duplex) 9) Number of ports: a) RMNTSW018: 16 10/100Mbps ports b) RMNTSW019: 24 10/100Mbps ports 10) Uplink shared with port 1x 11) Network media: 10BASE-T: 2-pair category 3, 4, 5 cables (100m), EIA/TIA-568 100ohm STP (100m) 12) 100BASE-TX: 2-pair Category 5 cable (100 m), EIA/TIA-568 100-ohm STP (100m) 13) Environmental and physical: a) Power supply: AC 170 - 270V, 50 or 60 Hz internal power supply