| Communications | 
  
    | Standard | IEEE 802.3, 802.3u, 802.3x, 802.1D, 802.1w,802.1p,    802.1Q, 802.1X, 02.3AD,802.3az  | 
  
    | LAN | 10/100Base-T    (X | 
  
    | Transmission    Distance | Ethernet:    Up to 100 m | 
  
    | Transmission    Speed Ethernet | 10/100 Mbps Auto-Negotiation | 
  
    | Interface | 
  
    | Power    Connectors | 6-pin screw Terminal Block (including relay) | 
  
    | I/O    Port | EKI-5526/I-EI: 16 x RJ-45  EKI-5528/I-EI: 8 x RJ-45  | 
  
    | Physical | 
  
    | Enclosure | Metal Shell | 
  
    | Protection    Class  | IP 30 | 
  
    | Installation | DIN-Rail | 
  
    | Dimensions    (W x H x D) | EKI-5526/I-EI: 74 x 120 x 84 mm  EKI-5528/I-EI: 43 x 120 x 84 mm  | 
  
    | LED    Display | 
  
    | System    LED | PWR1,    PWR2, P-Fail, Loop detection | 
  
    | Port    LED | Link/    Speed/ Activity | 
  
    | Environment | 
  
    | Operating    Temperature | EKI-5526I-EI & EKI-5528I-EI: -40    ~ 75°C (-40 ~ 167°F)  EKI-5526-EI & EKI-5528-EI: -10 ~    60°C (14 ~ 140°F)  | 
  
    | Storage    Temperature | -40    ~ 85°C | 
  
    | Operating    Humidity | 10    ~ 95% (non-condensing) | 
  
    | Storage    Humidity | 10    ~ 95% (non-condensing) | 
  
    | MTBF | EKI-5528/I-EI: 4,176,861 hours  EKI-5526/I-EI: 2,788,343 hours | 
  
    | Power | 
  
    | Power Consumption | EKI-5526/I-EI: Max. 8 W  EKI-5528/I-EI: Max. 5.2 W | 
  
    | Power    Input | 12 ~ 48 VDC (8.4~52.8 VDC),    redundant dual power input | 
  
    | Fault    Output | 1    Relay Output | 
  
    | Certification | 
  
    | EMI | CE, FCC Class A  | 
  
    | Safety | UL508, Class 1 Division 2, ATEX  | 
  
    | EMC | EN 61000-4-2; EN 61000-4-3; EN    61000-4-4;  EN 61000-4-5; EN 61000-4-6; EN    61000-4-8 | 
  
    | Shock | IEC 60068-2-27  | 
  
    | Freefall | IEC 60068-2-32  | 
  
    | Vibration | IEC 60068-2-6  | 
  
    | L2    Features | 
  
    | L2 MAC Address  | 8K | 
  
    | Jumbo Frame  | 9216 Bytes  | 
  
    | VLAN Group  | 256 (VLAN ID 1~4094)  | 
  
    | VLAN Arrange  | Port based VLAN, GVRP  | 
  
    | Port Mirroring  | Per port, Multi-source port,  | 
  
    | IP    Multicast | IGMP Snooping v1/v2/v3, MLD  Snooping, IGMP Immediate leav | 
  
    | Storm    Control | Broadcast, Multicast, Unknown unicast  | 
  
    | Redundancy | IEEE 802.1D-STP, IEEE 802.1s-MSTP,    IEEE  802.1w-RSTP, X-Ring, with ultra    high-speed recovery  time less than 20ms | 
  
    | QoS | 
  
    | Priority    Queue Scheduling | WRR    (Weighted Round Robin), SP (Strict Scheduling Priority)    Hybrid Priority | 
  
    | Class    of Service | IEEE    802.1p Based CoS, IP TOS, DSCP based CoS | 
  
    | Rate    Limiting | Ingress    Rate limit, Egress Rate limit | 
  
    | Link    Aggregation | IEEE    802.3ad Dynamic Port Trunking, Static Port  Trunking |