CXR Larus SWM-H-24TX-4CB Hardened Layer 2 Ethernet switch, 1U 19'', 24 10/100Baset ports, 4 uplink ports combo 1000TX et SFP 1000SX/LX/ZX, VLAN tagging 802.1q,QoS 802.1p, port trunking, RSTP, Alfa-Ring <15ms, SNMP V3, AC power supply, working temperature -40 à +75°C IEC61000-6