Trendnet 28-Port Gigabit PoE Plus Layer2 Switch

TRENDnet´s 28-Port Gigabit PoE+ Managed Layer 2 Switch with 4 SFP slots, model TL2-PG284, has 20 x Gigabit PoE ports, 4 x Gigabit PoE+ ports, 4 x shared SFP slots, a console port, a PoE Power budget of 185 watts, and an advanced Layer 2 management feature set. This IPv6 ready switch offers traffic management, troubleshooting, access control, and monitoring features.

Power over Ethernet:
- The 185 W PoE power budget supplies PoE+ (up to 30 W) to ports 1-4, PoE (up to 15.4 W) to ports 5-24, along with PD (powered device) auto classification and over current/short circuit protection.

Smart Fans:
- Smart fans save energy and reduce operating noise by varying fan speed and usage based on real-time cooling needs.

Integration Flexibility:
- Managed features include access control lists, VLAN, IGMP snooping, QoS, RMON, SNMP trap and syslog for monitoring and flexible network integration.

Hardware Design:
- Provides 20 x Gigabit PoE ports, 4 x Gigabit PoE+ ports, 4 x SFP slots, a console port, and includes rackmount brackets.

Smart Fan:
- Smart fan saves energy by varying fan speed and use based on cooling needs

IPv6 Ready:
- This switch supports IPv6 configuration and IPv6 neighbor discovery.

Traffic Management:
- A broad range of network configurations are supported by: 802.3ad link aggregation, Asymmetric VLAN, 802.1Q VLAN, Voice VLAN, Private VLAN, Bandwidth Controls, GVRP, IGMP v1-v3, 802.1p Class of Service (CoS), Spanning Tree (STP, RSTP, and MSTP), and QoS queue scheduling.

Troubleshooting:
- Real time traffic comparison charts, error group charts, and a convenient cable diagnostic test aid in rapid troubleshooting.

Access Controls:
- Features such as ACL, SSL, MAC / port filtering, Denial of Service controls, 802.1X, TACACS+, and RADIUS are compatible with layered network access controls.

Monitoring:
- RMON, SNMP, SNMP Trap, and Port Mirroring support administrator monitoring solutions.


Specifications:

Standards:
- IEEE 802.1d
- IEEE 802.1p
- IEEE 802.1Q
- IEEE 802.1s
- IEEE 802.1w
- IEEE 802.1X
- IEEE 802.1ab
- IEEE 802.3
- IEEE 802.3u
- IEEE 802.3x
- IEEE 802.3z
- IEEE 802.3ab
- IEEE 802.3ad
- IEEE 802.3af (15.4 Watts / port)
- IEEE 802.3at (30 Watts / port)
- IEEE 802.3az

Device Interface:
- 4 x Gigabit PoE+ ports
- 20 x Gigabit PoE ports
- 4 x Gigabit SFP slots
- 1 x Console Port
- LED Indicators (LED display mode button: toggles Link / Activity or PoE)
- Reset Button

Data Transfer Rate:
- Ethernet: 10 Mbps (half duplex), 20 Mbps (full duplex)
- Fast Ethernet: 100 Mbps (half duplex), 200 Mbps (full duplex)
- Gigabit Ethernet: 2000 Mbps (full duplex)

Performance:
- Switch fabric: 56 Gbps
- RAM buffer: 1 MB
- MAC Address Table: 16K entries
- Jumbo Frames: 10 KB
- HOL Blocking Prevention
- Forwarding rate: 41.7 Mpps (64-byte packet size)

Management:
- CLI (Console / Telnet / SSHv2)
- HTTP / HTTPS (SSL v2/3 TLS) Web based GUI
- SNMP v1, v2c, v3
- RMON v1
- Static Unicast MAC Address
- Enable / disable 802.3az Power Saving
- LLDP
- Virtual Cable Test
- IPv6: IPv6 Neighbor Discovery, IPv6 Static IP, DHCPv6, Auto configuration

MIB:
- MIB II RFC 1213
- Bridge MIB RFC 1493
- Bridge MIB Extension RFC 2674
- SNMPv2 MIB RFC 1907
- Ethernet Interface MIB RFC 1643
- Ethernet –like MIB RFC 2863
- Interface Group MIB RFC 2233
- MIB Traps Convention RFC 1215
- RMON MIB RFC 1757, RFC 2819
- 802.1p MIB RFC 2674
- RADIUS Client Authentication MIB RFC 2618
- LLDP-MIB IEEE 802.1ab
- Ping MIB RFC 2925, RFC 4560

Spanning Tree:
- IEEE 802.1D STP (Spanning Tree protocol)
- IEEE 802.1w RSTP (Rapid Spanning Tree protocol)
- IEEE 802.1s MSTP (Multiple Spanning Tree protocol)

Link Aggregation:
- Static Link Aggregation
- 802.3ad Dynamic LACP

Quality of Service (QoS):
- 802.1p Class of Service (CoS)
- DSCP (Differentiated Services Code Point)
- Bandwidth Control per port
- Queue Scheduling: Strict Priority, Weighted Round Robin (WRR)

VLAN:
- Multiple management VLAN assignment
- Asymmetric VLAN
- 802.1Q Tagged VLAN
- Dynamic GVRP
- Up to 256 VLAN groups, ID Range 1-4094
- Private VLAN (Protected Ports)
- Voice VLAN (10 user defined OUIs)

Multicast:
- IGMP Snooping v1, v2, v3 (per VLAN)
- Static Multicast Address
- Up to 256 multicast entries
- MLD Snooping v1, v2

Port Mirror:
- RX, TX, or Both
- One to one
- Many to one

Access Control:
- 802.1X Port-Based Network Access Control, RADIUS, TACACS+
- Local Dial In User Authentication
- DHCP Snooping (per VLAN)
- Loopback Detection
- Duplicated Address Detection
- Trusted Host
- Denial of Service (DoS)

ACL IPv4 L2-L4 & IPv6:
- MAC Address
- VLAN ID
- Ether Type (IPv4 only)
- IP Protocol 0-255
- TCP / UDP Port 1-65535
- 802.1p
- DSCP (IPv4 only)
- IPv6 Address (IPv6 only)

Management Utility:
- Windows® 10, 8.1, 8, 7, Vista, XP, Windows® 2003 / 2008 Server

Special Features:
- PoE+ ports

Power:
- Input: 100 - 240 V AC, 50/60 Hz, internal power supply
- Consumption: 240.2 W (max.)

PoE:
- PoE budget: 185 W
- 802.3at: Up to 30 W per port (ports 1-4)
- 802.3af: Up to 15.4 W per port (ports 5-24)
- Mode A: Pins 1,2 for power(+) and pins 3,6 for power(-)
- PD auto classification
- Over current / short circuit protection

Smart Fan / Acoustics:
- Quantity: 3
- Noise Level: 54 dB(A) (max.)

MTBF:
- 257,362 hours

Operating Temperature:
- 0 – 45°C (32 - 113°F)

Operating Humidity:
- Max. 90% non-condensing

Dimensions:
- 440 x 250 x 44.45 mm (17.3 x 9.84 x 1.75 in.)
- Rack mountable 1U height

Weight:
- 3.81 kg (8.4 lbs.)

Certifications:
- CE
- FCC
- UL

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