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B-35<br />
SwitchES<br />
Fast Ethernet Web Smart Switches<br />
DES-1200 Series<br />
Model DES-1228 DES-1228P DES-1252<br />
LAN Interface<br />
IEEE 802.3; IEEE 802.3u; IEEE 802.3z; IEEE 802.3ab; IEEE 802.3af (DES-1228P)<br />
10BASE-T/100BASE-TX<br />
Port (RJ-45)<br />
24 24 (PoE) 48<br />
Port Interface<br />
10BASE-T/100BASE-TX/<br />
1000BASE-T Port (RJ-45)<br />
2 2 2<br />
Combo 1000BASE-T/SFP 2 2 2<br />
Switching Capacity 12.8Gbps 17.6Gbps<br />
Maximum Forwarding Rate 9.52Mpps 13.1Mpps<br />
Forwarding Mode<br />
Store and Forward<br />
General Features<br />
Packet Buffer Memory<br />
128KBytes<br />
SDRAM for CPU<br />
8MBytes<br />
Flash Memory<br />
2MBytes PROM<br />
Mean Time Before Failure<br />
(MTBF)<br />
326,647 hours 149,676 hours 298,917 hours<br />
MAC Address Table: 8K; Static MAC: 256; Enable/Disable Auto-Learning of MAC Addresses;<br />
L2 Features<br />
IGMP Snooping v1/v2: 64 Multicast Groups; Spanning Tree Protocol: 802.1D STP; Power Savings;<br />
Static Port Trunk: Max. 6 Groups Per Device, 8 Ports Per Group<br />
Virtual VLAN (VLAN)<br />
802.1Q Tagged VLAN; Max. 256 Static VLAN Groups; Management VLAN; Asymmetric VLAN<br />
Quality of Service (QoS)<br />
802.1p Priority Queue; Max. 4 Queues Per Port; DSCP-based QoS;<br />
Queue Handling: Strict, Weighted Round Robin (WRR)<br />
Security<br />
802.1X Port-based Access Control; Broadcast Storm Control; Trusted Host; Cable Diagnostics;<br />
D-<strong>Link</strong> Safeguard Engine: Protect CPU from Broadcast/Multicast/Unicast Flooding<br />
Web-based GUI; Simple Network Management Protocol (SNMP) v1; DHCP Client;<br />
Trap Settings for Destination IP, System Events, Fiber Port Events, Twisted-Pair Port Events;<br />
Management<br />
Port Access Control; Web-based Configuration Backup/Restoration;<br />
Web-based Firmware Backup/Upload; Firmware Upgrade using SmartConsole Utility;<br />
System Reboot using Web-based Interface; SmartConsole Utility<br />
Management Information Base (MIB)<br />
MIB-II (RFC1213); D-<strong>Link</strong> Private MIB<br />
Dimension (W x D x H)<br />
19-inch, 1U Rack-Mount;<br />
19-inch, 1U Rack-Mount;<br />
19-inch, 1U Rack-Mount;<br />
440 x 140 x 44mm<br />
440 x 209 x 44mm<br />
440 x 310 x 44mm<br />
Weight 2.08kg 3.20kg 3.72kg<br />
Power Input<br />
AC Input: 100-240 VAC, 50/60Hz; Internal Universal Power Supply<br />
Power Consumption 18.35W 222W 26.2W<br />
Power Budget: 170W<br />
Physical &<br />
Power over Ethernet -<br />
-<br />
Per Port: 15.4W<br />
Environment<br />
Operation Temperature 0 to 40 °C<br />
Storage Temperature -10 to 70 °C<br />
Operation Humidity<br />
10% to 90% RH<br />
Storage Humidity<br />
5% to 90% RH<br />
Fan Fanless Four Fans Fanless<br />
Reset Button<br />
One Reset Button<br />
Certification<br />
EMI-EMC Compliance<br />
FCC Class A; CE Class A; VCCI Class A; C-Tick<br />
Safety Compliance<br />
cUL<br />
* Available in Future Firmware Upgrade
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