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Fiber Optic Ethernet Communications  Power over Ethernet MODEL LD2226B |
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MODEL LD2226B |
24 POE 100Mbps Copper Ports with 1 or 2 1000Mbps Fiber Ports |
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LD2226B |
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FEATURES |
- Supports 24 10/100Mbps TP ports with N-Way and auto MDI-X function
- Supports 2 Gigabit Dual Media ports (TP/SFP) and the SFP slots are for removable 1000Mbps fiber modules
- Supports hot-swap fiber transceiver modules
- Non-blocking, store-and-forward and shared-memory L2 managed switch
- Supports auto-negotiation for configuring speed and duplex mode
- Supports 802.3x flow control for full-duplex ports
- Supports collision-based and carrier-based backpressure for half-duplex ports
- 256-entry Multicast Addresses table
- Any ports can be in disable mode, force mode or auto-polling mode
- Per-port ingress/egress rate control with 64K/128K/256K (up to 100Mbps) resolution
- Supports Head of Line (HOL) blocking prevention
- Supports broadcast storm filtering
- 8K MAC addresses with automatic learning & aging
- Auto-aging with programmable inter-age time
- Supports 802.1p Class of Service with 4-level priority queuing
- Supports port sniffer function with 3 modes (TX Monitor, RX Monitor, or TX-RX pair Monitor mode)
- Supports port-based VLAN, 802.1Q tag-based VLAN with 256 entries
- Efficient self-learning and address recognition mechanism enables forwarding rate wire speed
- Web-based management provides the ability to completely manage the switch from web browser
- SNMP/Telnet interface delivers complete in-band management
- Supports IEEE 802.1d Spanning Tree Protocol (STP)
- Supports IEEE 802.1w Rapid Spanning Tree Protocol (RSTP)
- Supports IP Multicast to implement IGMP Snooping function
- Supports IEEE 802.3ad port trunking with flexible load distribution and failover function
- Supports ingress port security mode for VLAN Tagged and Untagged frame process
- Supports SNMP, MIB2, and RMON sampling with sampled packet error indication
- 24 ports IEEE 802.3af PoE PSE
- Endpoint with 48V DC power via RJ-45 pins 1, 2, 3, and 6
- Powered Devices (PD) auto detection and classification
- PoE PSE status and activity LED indicators
- Smart feature for PD ON/OFF, Class, Feeding Priority
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TECHNICAL SPECIFICATIONS |
- Model:
LD2226B
- Standards: IEEE 802.3ab / 802.3z / 802.3u / 802.3x / 802.3af
- Connectors / Slots:
Front Panel
— 24 10/100Mbps Fast Ethernet RJ-45 auto MDI/MID-X (Ports 1-24)
— 2 Gigabit 10/100/1000Base-T RJ-45 or 1000Base-SX/LX SFP Slots
[ The Dual-Media ports can only use one medium at a time, not both! ]
Rear Panel
— One (1) RS-232 DB-9 male console port
[ Settings: 57600,8,1,N,NONE ]
- Add-On Modules (Sold Separately):
DX-SFP.SX — 1000Base-SX Multi-Mode SFP Duplex-LC, 850nm
DX-SFP.L10 — 1000Base-LX Single-Mode/10km SFP Duplex-LC, 1310nm
DX-SFP.L40 — 1000Base-LX Single-Mode/40km SFP Duplex-LC, 1310nm
DX-SFP.L70 — 1000Base-LX Single-Mode/70km SFP Duplex-LC, 1550nm
DX-SFP.3L20 — 1000Base-LX Single-Mode/20km SFP Simplex-LC, TX 1310nm
DX-SFP.5L20 — 1000Base-LX Single-Mode/20km SFP Simplex-LC, TX 1550nm
- Data Transfer Rate:
10/100 or 10/100/1000Mbps (auto-negotiation or forced mode selectable by software) for FE or GbE TP
1000Mbps for GbE SFP fiber
- Cable / Max Distance:
Multi-Mode fiber 50/125, 62.5/125µm, 220~550m (cable dependent)
Single-Mode fiber 9/125µm, 10~70km (SFP dependent)
Category 5 or above Unshielded Twisted-Pair (UTP) cable, 100m
- Duplex Mode:
Full for 1000Base-SX/LX/T
Full/Half (auto-sense or forced-mode selectable by software) for 10/100Base-TX
- MAC Address and Self-learning:
8K addresses table entries, 256 VLAN table entries, 256 IP Multicast table entries
- Buffer Memory: Embedded 256KB packet buffer & 128KB control memory
- Flow Control:
IEEE 802.3x compliant for full-duplex
Backpressure flow control for half-duplex
- Diagnostic LEDs:
Per Unit — POWER, CPURUN, ACT(LEDSET), FDX(LEDSET), SPD(LEDSET)
Per Port — LINK/ACT, FDX, SPD
PoE-PSE — ACT
- Power Requirement: AC Line, 210W
Voltage 100~240V AC, Frequency 50~60Hz,
max 25W consumption without any PD device connected
max 185W consumption with all PoE devices connected
- Operating Temperature: 0° to 40° C
- Humidity: 5% to 90%
- Dimension: 44 x 442 x 209mm (H x W x D), 19" rack-mountable with bracket
- EMI Rating: FCC Class A, CE Mark
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MANAGEMENT SUPPORT |
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- System Configuration
Auto-negotiation supports on 10/100Base-TX ports; web browser or console interface can set transmission speed (10/100Mbps) and operation mode (Full/Half Duplex) on each port; enable/disable any port, set VLAN group(s), set trunk connection.
- Management Agent
SNMP supports; MIB II, Bridge MIB, RMON MIB
- Spanning Tree Algorithm
IEEE 802.1D
- VLAN Function
Port-based / 802.1Q Tagged-based, allowed up to 256 active VLANs in one switch
- Trunk Function
Ports trunk connections allowed
- IGMP
IP Multicast filtering by passively snooping on the IGMP Query
- Bandwidth Control
Supports by-port Egress/Ingress rate control
- Quality of Service (QoS)
Referred as Class of Service (CoS) by the IEEE 802.1P standard
— Four queues per port
— Packet transmission schedule using Weight Round Robin (WRR)
— User-defined weight
— Classification of packet priority can be based on either a VLAN tag on packet or user-defined
- Port Security
Limited numbers of MAC addresses learned per port; static MAC addresses stay in the filtering table
- Inter-networking Protocol
Bridging: 802.1D Spanning Tree
IP Multicast
— IGMP Snooping
— IP Multicast Packet Filtering
— Maximum of 256 active VLANs and IP Multicast sessions
- Network Management
One (1) RS-232 port as local control console
Telnet remote control console
SNMP agent: MIB-2 (RFC1213), Bridge MIB (RFC1493), RMON MIB (RFC1757), Ethernet-like MIB (RFC1643)
Web browser supports based on HTTP Server and CGI parser
TFTP software-upgrade capability
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