Společnost Netgear poskytuje ucelené řešení pro SMB, která vynikají výkonem a spolehlivostí. Spolu s jednoduchou instalací a správou získáváte špičkové řešení, které má velmi přiznivé náklady na pořízení a provoz. GS748T 48 10/100/1000 Mbps gigabit ports Non-blocking Bandwidth Easy, browser-based switch management Network Protocol and Standards Compatibility IEEE 802.3 10BASE-T Ethernet IEEE 802.3u 100BASE-TX Fast Ethernet IEEE 802.3ab 1000BASE-T Gigabit Ethernet IEEE 802.3x full-duplex flow control Interfaces 48 RJ-45 connectors for 10BASE-T, 100BASE-TX, and 1000BASE-T (Auto Uplink on all ports) 4 shared SFP slots for fiber Gigabit Ethernet modules Administrative Switch Management IEEE 802.1Q Tag VLAN (up to 64 static VLAN groups) Port-based VLAN (up to 48 groups) IEEE 802.1p (Class of Service) Port-based QoS (options high/normal) DSCP Layer QoS Port trunking – Manual as per IEEE802.3ad link aggregation DHCP client function Rapid Spanning Tree – 802.1w IGMP snooping V1 SNMP V1/V2c Port setting Web-based configuration, anywhere on the network Smart Wizard Discovery Utility program auto discovers devices (up to 254 agents/switches); set system configuration to each agent Configuration backup/restore (easy to configure more than one switch) Password access control and restricted IP access list Firmware upgradeable Active Flow Control Half-duplex back-pressure control Full-duplex IEEE 802.3x pause frame flow control Rate limiting Trusted MAC access control Performance Specifications Forwarding modes: Store-and-forward Bandwidth: 96 Gbps Network latency: Less than 20 µs for 64-byte frames in store-and-forward mode for100 Mbps to 100 Mbps transmission Jumbo frame support Buffer memory: 1,632 KB embedded memory per unit Address database size: 8,000 media access control (MAC) addresses per system Addressing: 48-bit MAC address Mean time between failure (MTBF): 108,000 hours (~12 years) Acoustic noise: 52 dBA LEDs Unit: Power Per port: Link, activity, speed Power Supply Power consumption: 66W maximum 100-240V AC/50-60 Hz universal input Physical Specifications Dimensions (H x W x D): 440 x 305 x 43mm (17.3 x 12.0 x 1.7in) Weight: 4.9 kg/10.8 lb Environmental Specifications Operating temperature: 32° to 104°F (0° to 40° C) Storage temperature: 14° to 158°F (-10° to 70°C) Operating humidity: 90% maximum relative humidity, non-condensing Storage humidity: 95% maximum relative humidity, non-condensing Operating altitude: 3,000 m (10,000 ft) maximum Storage altitude: 3,000 m (10,000 ft) maximum Electromagnetic Compliance CE mark, commercial FCC Part 15 Class A VCCI Class A EN 55022 (CISPR 22), Class A EN 50082-1 EN 55024 C-Tick Safety Agency Approvals UL listed (UL 1950)/cUL IEC 950/EN 60950 Warranty NETGEAR Lifetime Warranty† Package Contents 48-port Gigabit Smart Switch (GS748T) Rubber footpads Power cord Rack-mount kit Smart Switch resource CD Smart Switch installation guide Warranty/support information card Modules ProSafe AGM731F 1000BASE-SX SFP GBIC ProSafe AGM732F 1000BASE-LX SFP GBIC ProSafe AGM733 1000BASE-ZX SFP GBIC Ordering Information North America: GS748TNA Europe: GS748TEU Asia: GS748TAU ProSupport Information OnCall 24x7, Category 2 PMB0332 XPressHW, Category 2 PRR0332-100