28 Ports Poe Managed Industrial Ethernet Switch

Comply with IEEE 802.3af/802.3af standards
8 IEEE 802.3af-compliant PoE and Ethernet combo ports 
Provide up to 15.4watts per PSE port for remote devices
Support VLAN, QinQ and QoS
SNMPv3, IEEE 802.1X, HTTPS, and SSH to enhance network security
Easy network management through web browser, CLI, Telnet/serial 
console, SNMP
Proprietary Protocol "Fi Ring" (recovery time < 20ms), 
RSTP/STP for network redundancy

Ports
2x100BaseFX/1000BaseX (SFP slots) for uplink, 8 x 10/100M BaseTX (PSE+Fast Ethernet) ports + 16 x 10/100M BaseTX (only Fast Ethernet) for downlink
       PoE
Comply with IEEE 802.3af standards
Provide up to 15.4watts per PSE port for remote devices

High Reliability
Support FMC Ring Protocol "Fi Ring" (recovery time < 20ms) and STP/RSTP for network redundancy.
Support LACP to expand the bandwidth of a switch port, balance the traffic among all the ports in a link aggregation and enhance the connection reliability.

Management & maintainability
 Support SNMP v1/v2c/v3 and RMON MIB Group 1, 2, 3, 9
 Support FirstMile's FiVision NMS for industrial  networks, providing centralized  management, status  monitoring and trouble shooting, auto-discovery and auto-provision for incoming device. 

Comprehensive Security
 Support 802.1X authentication 
 Support MAC address authentication
 Support MAC-IP-port binding

Versatile QoS Policies
Offer powerful hardware ACL capability 
Support different priority criteria: DSCP priority, 802.1p priority, Strict Priority (SP) and Weighted Round Robin (WRR).
Support diversified flow-based QoS actions. Based on the ACL defined, the switches can perform the following QoS: rate limit, traffic shape, traffic statistics, and priority marking.

Standards
IEEE 802.3af PoE
IEEE 802.3
IEEE 802.3u
IEEE 802.3z
IEEE 802.1X for Authentication
IEEE 802.3x for Flow Control
IEEE 802.1D-2004 for STP
IEEE 802.1w for Rapid STP
IEEE 802.1s for Multiple STP
IEEE 802.1Q for VLAN Tagging
IEEE 802.3ac for VLAN Tag Frame Extension
IEEE 802.1p for Class of Service
IEEE 802.3ad for Port Trunk with LACP

Protocols
IGMPv1/v2, GVRP, SNMPv1/v2c/v3, DHCP Client,
TFTP, SNTP, SMTP, RMON, HTTP, HTTPS, Telnet, Syslog,
SSH, DHCP Option 82, SNMP Inform, LLDP, SNTP Server/Client

MIB
MIB-II, Ethernet-Like MIB, P-BRIDGE MIB, Q-BRIDGE MIB,
Bridge MIB, RSTP MIB, RMON MIB Group 1, 2, 3, 9

Flow Control
IEEE 802.3x flow control, back pressure flow control

Switch Properties
Priority Queues: 4
Max. Number of Available VLANs: 4094
VLAN ID Range: VID 1 to 4094
IGMP Groups: 256
MAC Table Size: 8K
Packet Buffer Size: 2 Mbit

Interface 
Fiber Ports: 100BaseFX / 1000BaseX (SFP slots)
RJ45 Ports: 10/100BaseTX auto negotiation
Console Port: RS-232(RJ45 connector)
Alarm Contact: 1 relay outputs with current carrying capacity of3A@30VDC or 3A@240VDC

Power Requirements
Input Voltage: 48 VDC (36 ~ 72VDC) or 110/220 VAC (85 ~ 265V)
Input Current: 14A@ 48VDC
Overload Current Protection: Present
Reverse Polarity Protection: Present
Connector: 5-contact terminal blocks

Physical Characteristics
Housing: Metal, IP40 protection
Size: 440*281*45 mm
Weight: 3.35kg
Installation: 19-inch 1U rack installation

Environmental Limits
Operating Temperature:
Standard Models: 0 to 60 ºC (32 to 140°F )
Wide Temp. Models:-40 to +75ºC (-40 to 167°F)
Storage Temperature: -40 to +85ºC (-40 to 185°F )
Ambient Relative Humidity:  5 to 95% (non-condensing)

Standards and Certifications
Safety: UL 60950-1
EMS:
EMI: FCC Part 15 Subpart B Class A, EN 55022 Class A
EN 61000-4-2 (ESD) Level 4, EN 61000-4-3 (RS) Level 3,
EN 61000-4-4 (EFT) Level 4, EN 61000-4-5 (Surge) Level 4,
EN 61000-4-6 (CS) Level 3, EN 61000-4-8 Level 3
Shock:  IEC 60068-2-27
Freefall:  IEC 60068-2-32
Vibration:  IEC 60068-2-6
Warranty Period: 5 years