General Port Standards & Functions • IEEE 802.3 10BASE-T Ethernet • IEEE 802.3u 100BASE-TX (Fast Ethernet) • IEEE 802.3ab 1000BASE-T (Gigabit Ethernet) • IEEE 802.3z Gigabit Ethernet (fiber) • IEEE 802.3x Flow Control for Full-Duplex Mode • Auto-negotiation Number of Ports • DES-1210-28 • 24 10/100 Mbps • 2 10/100/1000 Mbps • 2 Gigabit Combo (RJ45/SFP) • DES-1210-28P • 24 10/100 Mbps PoE • 2 10/100/1000 Mbps • 2 Gigabit Combo (RJ45/SFP) • DES-1210-52 • 48 10/100 Mbps • 2 10/100/1000 Mbps • 2 Gigabit Combo (RJ45/SFP) Network Cables • UTP Cat. 5, Cat. 5e (100 m max.) • EIA/TIA-568 100-ohm STP (100 m max.) Full/Half Duplex • Full/half duplex for 10/100 Mbps speeds • Full duplex for Gigabit speed Media Interface Exchange • Auto or configurable MDI/MDIX Performance Switching Capacity • DES-1210-28 • 12.8 Gbps • DES-1210-28P • 12.8 Gbps • DES-1210-52 • 17.6 Gbps Transmission Method • Store-and-forward MAC Address Table • DES-1210-28 • 8K entries per device • DES-1210-28P • 8K entries per device • DES-1210-52 • 16K entries per device MAC Address Update • Up to 256 static MAC entries • Enable/disable auto-learning of MAC addresses Maximum 64 bytes packet forwarding rate • DES-1210-28 • 9.5 Mpps • DES-1210-28P • 9.5 Mpps • DES-1210-52 • 13.1 Mpps Packet Buffer Memory • DES-1210-28 • 4.1 Mbits • DES-1210-28P • 4.1 Mbits • DES-1210-52 • 12.1 Mbits Flash Memory • 16 MB Power over Ethernet (DES-1210-28P only) PoE Standard • IEEE 802.3af and IEEE 802.3at PoE Capable Ports • Ports 1 to 4: Up to 30 W • Ports 5 to 24: Up to 15.4 W PoE Power Budget • Max. 193 W Physical & Environment AC Input • 100 to 240 VAC 50/60 Hz internal universal power supply Maximum Power Consumption • DES-1210-28 • 9.46 W • DES-1210-28P • 189.6W (PoE on) • 17.8W (PoE off) • DES-1210-52 • 14.77W Standby Power Consumption • DES-1210-28 • 4.1 W • DES-1210-28P • 11.4 W • DES-1210-52 • 8.1 W Fan Quantity • DES-1210-28 • 0 • DES-1210-28P • 3 • DES-1210-52 • 0 Acoustics • DES-1210-28 • 0 dB • DES-1210-28P • 53.7 dBA • DES-1210-52 • 0 dB Heat Dissipation • DES-1210-28 • 29.69 BTU/hr • DES-1210-28P • 89.05 BTU/hr • DES-1210-52 • 47.81 BTU/hr Operating Temperature • 23-122 °F (-5-50 °C) Storage Temperature • -4-158 °F (-20-70 °C) Operating Humidity • 0% to 95% non-condensing Storage Humidity • 0% to 95% non-condensing Dimensions • DES-1210-28 • 13.00 x 7.09 x 1.73 in. • (330 x 180 x 44 mm) • DES-1210-28P • 17.32 x 8.27 x 1.73 in. • (440 x 210 x 44 mm) • DES-1210-52 • 17.32 x 8.27 x 1.73 in. • (440 x 210 x 44 mm) Weight • DES-1210-28 • 3.48 lbs (1.58 kg) • DES-1210-28P • 7.12 lbs (3.23 kg) • DES-1210-52 • 6.15 lbs (2.79 kg) Diagnostic LEDs • DES-1210-28 • Power (per device) • Link/Activity/Speed (per port) • DES-1210-28P • Power (per device) • PoE Max (per Device) • Fan (per device • Link/Activity/Speed (per port) • Button to switch LED display mode between PoE and Link/Activity • DES-1210-52 • Power (per device) • Fan (per device) • Link/Activity/Speed (per port) MTBF • DES-1210-28 • 330,182 hours • DES-1210-28P • 205,416 hours • DES-1210-52 • 487,667 hours EMI Certifications • FCC Class A • CE Class A • VCCI Class A • IC, C-Tick Safety • cUL • CE LVD 3rd Party Certifications • IPv6 Ready Logo Phase 2 Software L2 Features • MAC Address Table • DES-1210-28: 8K entries • DES-1210-28P: 8K entries • DES-1210-52: 16K entries • Flow Control • 802.3x Flow Control • HOL Blocking Prevention • Port Mirroring • One-to-One • Many-to-One • Supports Mirroring for Tx/Rx/Both • Spanning Tree • Supports 802.1D STP 2004 edition • Supports 802.1w RSTP • Supports Root Restriction(defined in 802.1Q-2005) • 802.3ad Link Aggregation • DES-1210-28: / DES-1210-28P • Max. 8 groups per device/8 ports per group • DES-1210-52: • Max. 16 groups per device/8 ports per group L2 Multicasting • Forward all unregistered groups • Filter all unregistered groups • MLD snooping • Support MLD v1,v2 • 256 MLD snooping groups • IGMP Snooping • Supports IGMP v1,v2, v3 awareness • Supports 256 IGMP snooping groups • Supports 64 static multicast address VLAN • 802.1Q tagged VLAN • VLAN Group • Max. 256 static VLAN groups • Max. 4094 VIDs • Management VLAN • Asymmetric VLAN • Auto Voice VLAN • Auto Surveillance VLAN Quality of Service (QoS) • 802.1p • Max. 4 queues per port • Queue Handling • Strict • Weighted Round Robin (WRR) • Bandwidth control • CoS Based on: • 802.1p • DSCP • ToS • TCP/UDP port number • IPv6 traffic class Security • 802.1x • Supports IPv4/IPv6 RADIUS Server • Supports Port-based access Control • Supports EAP, OTP, TLS, TTLS and PEAP • Supports MD5 authentication • Supports 802.1X session timeout attribute • D-Link Safeguard Engine • DHCP Server Screening • ARP Spoofing Prevention • Storm Control • Traffic Segmentation • Port Security • DoS Attack Prevention • SSH • SSL • Smart Binding(IP-MAC-Port Binding, IMPB) • Duplicate Address Detection (DAD) Access control list section • ACL based on: • 802.1p priority • VLAN • MAC address • Ethernet type • IPv4 and IPv6 address • LLC mask • DSCP • Protocol type • TCP/UDP port number • IPv6 Traffic Class • Max. 50 ingress ACL profiles • Max. 1280 ingress ACL rules Management • Web-based GUI • Compact CLI through Telnet • Telnet Server (IPv4 / IPv6) • D-Link Network Assistant Utility • SNMP (IPv4 / IPv6) • Supports v1/v2c/v3 • SNMP Trap • System Log • Max. 500 log entries • Supports IPv4 / IPv6 log server • TFTP Client (IPv4 / IPv6) • BootP/DHCP Client (IPv4 / IPv6) • LLDP • LLDP-MED • SNTP (IPv4/v6) • DHCP Auto Configuration • RMON v1 • IPv4/v6 Dual Stack • DDP (D-Link Discover Protocol) MIB • RFC1213 MIB II • RFC1493 Bridge MIB • RFC1907 SNMPv2 MIB • RFC1757,RFC2819 RMON MIB • RFC1215 MIB Traps Convention • RFC2233 Interface Group MIB • RFC1398,1643,1650,2358,2665 Ether-like MIB • RFC2674,4363 802.1p MIB • IEEE 802.1AB-2005 LLDP-MIB • ZoneDefense MIB • DDP MIB Warranty • Limited Lifetime Warranty* Ordering Information DES-1210-28      28-Port 10/100 Web Smart Switch including 2 Gigabit BASE-T and 2 Gigabit Combo BASE-T/SFP DES-1210-28P      28-Port 10/100 Web Smart PoE Switch including 2 Gigabit BASE-T and 2 Gigabit Combo BASE-T/SFP DES-1210-52      52-Port 10/100 Web Smart Switch including 2 Gigabit BASE-T and 2 Gigabit Combo BASE-T/SFP Optional Management Software DV-600S      D-View 6.0 Network Management Software (Standard Edition) DV-600P      D-View 6.0 Network Management Software (Professional Edition) Optional SFP Transceivers DEM-310GT      1000BASE-LX, single-mode, 10 km DEM-311GT      1000BASE-SX, multi-mode, 550 m) DEM-211      100BASE-FX, multi-mode, 2 km DGS-712      1000BASE-T, SFP transceiver *