Ethernet Switches Product Information
EIR508-xxx-x 0708ds - 2/2 
© 2008 by B&B Electronics. All rights reserved. 
International Headquarters: 707 Dayton Road PO Box 1040 Ottawa, IL 61350 USA 
815-433-5100 Fax 433-5104 www.bb-elec.com orders@bb-elec.com support@bb-elec.com 
European Headquarters: Westlink Commercial Park Oranmore Co. Galway Ireland
 +353 91 792444 Fax +353 91 792445 
www.bb-europe.com orders@bb-europe.com support@bb-europe.com
B&B ELECTRONICS   PRODUCT INFORMATION
Specifications 
Technology 
IEEE Standards  802.3 10Base-T Ethernet, 802.3u 100Base-TX and 100Base-FX Fast Ethernet 
  802.3x Flow Control and Back Pressure, 802.1d Spanning Tree, 802.1w Rapid Spanning Tree 
  802.1p Class of Service, 802.1Q VLAN Tag 
Processing Type  Store and Forward 
Flow Control  Flow control on full duplex, Back Pressure on half duplex 
MAC Address Table Size  2 KB 
Memory Buffer  1 MB 
Protocol CSMA/CD 
Management  SNMP, Web GUI, and reset to factory default button 
Transfer Rate  14,880 bps for Ethernet ports, 14,8800 for Fast Ethernet ports 
Transfer Packet Size  64 bytes to 1522 bytes (with VLAN tag) 
Packet throughput ability  1.49 Mbps @ 64 bytes 
X-Ring  2 ports for X-Ring provide redundant backup with a recovery time below 300 MS. 
Packet Filter  4 Selection Rules to filter combinations of Broadcast , Multicast, Unicast, and Unknown packets. 
VLAN  Port based and Tag. Up to 64 VLAN groups 
Class of Service  4 priority queues per port 
Quality of Service  Port based, Tag based, or IPv4 Type of Service 
IGMP  IGMP v1 and Query mode. Up t o 256 groups 
Clock Synchronization  SNTP 
Management Security  IP Address 
Port Mirror  TX packet only or TX and RX packet 
Firmware Update  TFTP 
DHCP  DHCP Client Function to obtain addresses from DHCP server 
Bandwidth Control  Ingress Packet Filter rules and Egress Rate Control 
Interface 
RJ-45 Ports  10/100BaseT with auto negotiation, Full/Half Duplex, MDI/MDI-X 
Fiber Ports  100Base FX, single-mode or multi-mode with ST or SC connectors 
Port Indicators (each port)  Green LED for Link / Activity and Yellow LED for Full Duplex / Collision 
System Indicators  Green LEDs for Power, Power 1, Power 2, and Master. Yellow LED for Fault. 
Fiber Optics 
Fiber Type  Distance  Wavelength  Cable  Output Optical Power  Input Power Min 
Multimode  2 KM  1310 nm  62.5/125 um  -10 to 0 dBm  < -28 dBm 
Single Mode  30 KM  1310 nm  9/125 um  -15 to -8 dBm  < -34 dBm 
Power SNMP MIB    SNMP Trap 
Input Voltage  12 to 48 VDC, dual source 
RFC 1213 MIBII    Up to 3 Trap Stations 
Current Consumption  0.8 A max. 
RFC 1493 Bridge MIB    Cold Start 
Input Connection  Terminal Block 
RMON RFC 1757    Port link up 
Relay Alarm  1A @ 24VDC 
RFC 2674 VLAN MIB    Port link down 
RFC 1643 Ethernet like MIB    Authentication Failure 
Mechanical 
RFC 1215 Trap MIB    Power status 
Enclosure  IP30 Aluminum Case    Private MIB for switch info    Port Alarm 
Mount  35 mm DIN or Panel        Fault Alarm 
Dimensions  2.3 x 5.7 x 4.3 in (5.8 x 14.5 x 10.9 cm)        X-Ring 
Environmental 
CE Declaration of Conformity    Operating Temperature  -40 to 167 F (-40 to 75 C) 
Manufacturer’s Name  B&B Electronics Mfg CO    Storage Temperature  -40 to 185 F (-40 to 85 C) 
Manufacturer’s  707 Dayton Road    Operating Humidity  0 to 95% NC 
Address  PO Box 1040    MTBF EIR508-T  319175 hours 
  Ottawa, IL 61350 USA    MTBF EIR508-2xx-T  315109 hours 
Model Numbers  EIR508-T, EIR508-2xx-T series   
Regulatory Approvals 
Description  Industrial Managed Switch    EMI  FCC Class A 
Type  Light Industrial ITE Equipment      EN6100-4-2, -4-3, -4-4, 
Application of Council Directive  89/336/EEC      EN6100-4-5, -4-6 
Standards EN55022   Safety   EN60950 
EN61000-4-2, -4-3, -4-4, -4-5    Free Fall  IEC60068-2-32 
EN61000-4-6, -4-8, -4-11, -4-12    Shock  IEC60068-2-27 
EN61000-6-2, -6-4    Vibration  IEC60068-2-6 
Michael J. Fahrion, Director of Engineering       


