Standard  IEEE 802.3  10Base-T 10Mbit/s Ethernet    
IEEE 802.3u  100Base-TX, 100Base-FX, Fast Ethernet    
IEEE 802.3z  1000Base-X Gbit/s Ethernet over Fiber-Optic    
IEEE 802.1d  STP (Spanning Tree Protocol)    
IEEE 802.1w  RSTP (Rapid Spanning Tree Protocol )    
IEEE 802.1s  MSTP (Multiple Spanning Tree Protocol)    
ITU-T G.8032 / Y.1344  ERPS (Ethernet Ring Protection Switching)    
IEEE 802.1Q  Virtual LANs (VLAN)     
IEEE 802.1X  Port based and MAC based Network Access Control, Authentication   
IEEE802.3ac  Max frame size extended to 1522Bytes.    
IEEE 802.3ad  Link aggregation for parallel links with LACP(Link Aggregation Control Protocol)   
IEEE 802.3x  Flow control for Full Duplex    
IEEE 802.1ad  Stacked VLANs, Q-in-Q     
IEEE 802.1p  LAN Layer 2 QoS/CoS Protocol for Traffic Prioritization     
IEEE 802.1ab  Link Layer Discovery Protocol (LLDP)     
IEEE 802.3az  EEE (Energy Efficient Ethernet)     
VLAN ID  4094 IEEE802.1Q VLAN VID     
Switch Architecture  Back-plane (Switching Fabric):     
4.8Gbps (IFS-402GSM), 7.6Gbps (IFS-803GSM)     
11.2Gbps (IFS-1604GSM)     
Full wire-speed       
 Data Processing  Store and Forward       
Flow Control  IEEE 802.3x for full duplex mode Back pressure for half duplex mode   
Network Connector  4x 10/100Base-TX RJ-45 + 2x 100/1000Base-X SFP connector (IFS-402GSM)   
8x 10/100Base-TX RJ-45 + 3x 100/1000Base-X SFP connector (IFS-803GSM)   
16x 10/100Base-TX RJ-45 + 4x 100/1000Base-X SFP connector (IFS-1604GSM)   
RJ-45 UTP port support Auto negotiation speed, Auto MDI/MDI-X function,   
SFP port support dual speed with DDMI     
Console  RS-232 (RJ-45)       
Network Cable  UTP/STP above Cat. 5e cable     
EIA/TIA-568 100-ohm (100m)       
Protocols  CSMA/CD       
Reverse Polarity Protection  Present       
Overload Current Protection  Present       
CPU Watch Dog  Present       
Power Supply  Redundant Dual DC 12/24/48V (9.6~60VDC) Input power (Removable Terminal Block )   
Provide DC Power JACK adapter cable for external       
power supply         
Power Consumption Input  IFS-  IFS-  IFS- 
Voltage  402GSM  803GSM  1604GSM 
12VDC  5.7W  6.5W  10.8W 
24VDC  5.8W  7W  10.6W 
48VDC  8.5W  8.6W  12.5W 
LED  Per unit: Power 1 (Green), Power 2 (Green), Fault (Amber), CPU Act (Green), Ring Master (Yellow)   
Per RJ-45 port: 10/100 Link/Active (Green)       
SFP Fiber Per port: Link/Active (Green)       
Jumbo Frame 9.6KB      
IEEE802.3ac Max frame size extended to 1522Bytes (allow Q-tag in packet)  
MAC Address Table 8K      
Memory Buffer 512K Bytes for packet buffer    
Warning Message System Syslog, SMTP/ e-mail event message, alarm relay    
Alarm Relay Contact Relay outputs with current carrying capacity of 1 A @24VDC  
Removable Terminal Block Provide 2 redundant power, alarm relay contact, 6 Pin    
Operating Temperature -10 ~ 60°C (IFS-402GSM, IFS-803GSM, IFS-1604GSM) -40 ~ 75°C (IFS-402GSM-E, IFS-803GSM-E, IFS-1604GSM-E)
Operating Humidity 5% to 95% (Non-condensing)    
Storage Temperature -40 ~ 85°C      
Housing Rugged Metal, IP30 Protection, Fanless    
Dimensions 106 x 62.5 x 135 mm (D x W x H) (IFS-402GSM) 106 x 72 x152 mm (D x W x H) (IFS-803GSM, IFS-1604GSM) 
Weight  0.715kg (IFS-402GSM), 0.79kg (IFS-803GSM)     
0.82kg (IFS-1604GSM)       
Installation  DIN Rail mounting or wall mounting       
Mounting       
MTBF  321,556hrs (IFS-402GSM) 409,312hrs (IFS-803GSM)     
145,967hrs (IFS-1604GSM)     
(MIL-HDBK-217)       
Warranty  5 years       
Certification         
EMC  CE       
EMI  FCC Part 15 Subpart B Class A,CE EN55022 Class A       
(Electromagnetic       
Interference)       
Railway Traffic  EN50121-4       
Traffic control  NEMA TS2 (IFS-402GSM, IFS-803GSM)     
Immunity for Heavy Industrial Environment  EN61000-6-2       
Emission for Heavy Industrial Environment  EN61000-6-4       
EMS (Electromagnetic Susceptibility) Protection Level  EN61000-4-2 (ESD) Level 3, Criteria B     
EN61000-4-3 (RS) Level 3, Criteria A       
EN61000-4-4 (Burst) Level 3, Criteria A       
EN61000-4-5 (Surge) Level 3, Criteria B       
EN61000-4-6 (CS) Level 3, Criteria A       
EN61000-4-8 (PFMF, Magnetic Field) Field Strength: 300A/m, Criteria A     
Safety  UL60950-1       
Shock  IEC 60068-2-27       
Freefall  IEC 60068-2-32       
Vibration  IEC 60068-2-6       
Topology         
VLAN  IEEE 802.1q VLAN,up to 4094 802.1Q VLAN VID     
IEEE 802.1q VLAN,up to 4094 Groups       
IEEE 802.1ad Q-in-Q         
MAC-based VLAN,up to 256 entries       
IP Subnet-based VLAN, up to 128 entries       
Protocol-based VLAN(Ethernt, SNAP, LLC), up to 128 entries     
VLAN Translation, up to 256 entries       
GVRP (GARP VLAN Registration Protocal)       
MVR ( Multicast VLAN Registration)       
Link Aggregation (Port Trunk)  Static (Hash with SA, DA, IP, TCP/UDP port), up to 5 trunk group   
Dynamic (IEEE 802.3ad LACP), up to 5 trunk group       
Spanning Tree  IEEE802.1d STP       
IEEE802.1w RSTP         
IEEE802.1s MSTP         
Multiple μ-Ring  up to 5 instances that each supports μ-Ring, u-Chain or Sub-Ring type for flexible uses, and maximum up to 5 Rings. 
(See figure 5, 6, 7)       
Recovery time   
The maximum number of devices allowed in a Ring supported ring is 250.   
Loop Protection  Present       
ITU-T G.8032 / Y.1344 ERPS (Ethernet Ring Protection)  Recovery time   
Single Ring, Sub-Ring, Multiple ring topology network     
QoS Features         
Class of Service  IEEE802.1p 8 active priorities queues for per port     
Traffic Classification QoS  IEEE802.1p based CoS       
IP Precedence based CoS       
IP DSCP based CoS         
QCL(QoS Control List): Frame Type, Source/ Destination MAC, VLAN ID, PCP, DEI     
QCE(QoS Control Entry): Protocol, Source IP, IP Fragment, DSCP, TCP/UDP port number   
Bandwidth Control for Ingress  Rate in steps :1 kbps / Mbps / fps / kfps     
Range : 100 kbps to 1Gbps / 1fps to 3300kfps       
Rate Unit : bit or frame         
Bandwidth Control for Egress  Rate in steps : 1 kbps / Mbps     
Range : 100 kbps to 1Gbps       
Rate Unit : bit         
Per queue / Per port shaper       
DiffServ (RF 2474) Remarking       
Storm Control  for Unicast, Broadcast, Multicast     
IP Multicasting Features       
IGMP / MLD Snooping  IGMP Snooping v1, v2, v3 / MLD Snooping v1, v2     
Port Filtering Profile         
Throttling, Fast Leave         
Maximum Multicast Group : up to 1022 entries       
Query / Static Router Port       
Security Features         
IEEE 802.1X  Port-Based       
MAC-Based         
ACL  Number of rules : up to 256 entries     
for L2 / L3 / L4         
RADIUS authentication & accounting       
TACACS+ authentication & accounting, TACACS+ 3.0     
HTTPS, HTTP         
SSL / SSH v2         
User Name Password Authentication  Local Authentication       
Remote Authentication (via RADIUS / TACACS+)       
Management Interface Access Filtering  Web, Telnet / SSH , CLI RS-232 console     
Management Features         
CLI Cisco® like CLI         
Web Based Management       
Telnet  Server       
SNMP  V1, V2c, V3       
SW & Configuration Upgrade  TFTP, HTTP       
Redundant firmware in case of upgrade failure       
RMON  RMON I (1, 2, 3, 9 group), RMON II     
MIB  RFC1213 MIB II, Private MIB     
UPnP         
DHCP  Server, Client, Relay, Snooping     
Snooping option 82         
Relay option 82         
IP Source Guard         
Port Mirroring         
Event Syslog  Syslog server (RFC3164) (Support 1 server )     
Warning Message  System syslog, e-mail, alarm relay     
DNS  Client, Proxy       
IEEE1588 PTP V2  Support 5 operating mode in each port :     
Ordinary-Boundary, Peer to Peer Transparent Clock,     
End to End Transparent Clock, Master, Slave    
NTP         
LLDP (IEEE 802.1ab)  Link Layer Discovery Protocol     
LLDP-MED         
IPv6 Features         
IPv6 Management  Telnet Server/ICMP v6       
SNMP over IPv6         
HTTP over IPv6         
SSH over IPv6         
IPv6 Telnet Support         
IPv6 NTP Support         
IPv6 TFTP Support         
IPv6 QoS         
IPv6 ACL  Number of rules: up to 256 entries     
L2 / L3 / L4