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Rail & Transit Connectivity Quick Reference Guide
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Rail & Transit Connectivity Quick Reference Guide


Because railway systems generate a great deal of electromagnetic interference, proper standards are required for railway applications. For example, devices installed in rolling stock should comply with the EN 50155 standard, and wayside devices should comply with the EN 50121-4 standard. This Quick Reference Guide lists EtherWAN’s best-selling network connectivity products for railway applications. Through a few simple steps, you’ll be able to select the right EtherWAN product according to your requirements. If you need further assistance, please don’t hesitate to contact our sales department.

Information needed to select the proper PoE (Power over Ethernet) or non-PoE switch:

  1. Differentiate rolling stock and wayside applications.
    a. Rolling stock should comply with EN 50155 standard.
    b. Wayside devices should comply with EN 50121-4 standard.
  2. How many devices are you connecting?
  3. Are the devices 10/100 Fast Ethernet (FE) or 10/100/1000 Gigabit Ethernet?
  4. Will you need room for additional devices (expansion) in the future?
    a. It’s always a good practice to have some extra ports available for future expansion.
  5. Do you require Fiber Optic connectivity?
    a. If so, what type of fiber optics will be used? Single Mode (SM), Multi Mode (MM), or Wavelength-division Multiplexing (WDM)?
    b. What speed (FE/GE) and distance? What type of connectors (SC, ST, LX, LC, SFP, etc..) are needed?
        i. 100M Fiber
            SFP mode for variable distance
            2Km Multi mode (MM)
            10Km Single mode (SM)
            20Km Single mode (SM)
        ii. 1000M fiber
            SFP mode for variable distance
            550m Multi mode (SX)
            10Km Single mode (LX)
             20Km Single mode (LX)
  6. Are you connecting a network uplink to a central office and downlink to next switch?.
    a. If yes, you need two extra ports for network uplink & downlink. Calculate total bandwidth for all devices in order to choose uplink & downlink ports bandwidth.
  7. Does your network application require redundancy?
    a. If, yes, choose a managed switch that supports the EtherWAN Alpha-Ring protocol, RSTP, or STP.
  8. Are you connecting devices that require active PoE (802.3af or 802.3at), such as Wireless AP (WAP),IP cameras, digital displays or VoIP phones?
    a. If yes, what is the maximum power draw (wattage) of each PoE device? Refer to the datasheet for the camera or the manufacturer’s website.
    b. If the wattage of all devices is below 15.4W, then an IEEE802.3af PoE switch should be sufficient.
    c. If the wattage of any connected device is greater than 15.4W, then choose an IEEE802.3at PoE switch.
    d. If the wattage of any device is greater than 30W, then consider purchasing an ultra-PoE switch.
    e. Add up total wattage from all cameras. This figure will be used to determine the required PoE power budget.
  9. Make sure you select a switch that has a large enough PoE Power Budget to cover the total power draw calculated in #8-e above. It is a good practice to allow for 20% overage on the power budget.
    Example: Each camera draws 12 Watts x 8 cameras = 96W. After adding a 20% margin, a 115.2W minimum PoE budget is recommended.
  10. Managed vs. Unmanaged switch? We always recommend at least Web-Smart management, as this allows for troubleshooting as well as remote power cycling of individual devices. A managed switch is also required if VLAN, QoS, Redundancy, or Security is required.
  11. Installation Location:
    a. Outdoor Deployment : Operating Temperature -40 ~ 75°C (-40 ~ 167°F).
    b. Indoor deployment with air conditioning: Operating Temperature 0 ~ 45°C (0 ~ 113°F).
    c. Indoor Deployment without air conditioning: Operating Temperature -10 ~ 60°C (14 ~ 140°F).
  12. S Consider purchasing a surge protector if the Ethernet cables will be run outside of a building.
  13. In addition, you can use this web page to easily search:
    http://www.etherwan.com/product-selector/ethernet-switches
  • Hardened EN50155 M12 Switches (-40~75 °C)
  • Hardened Din Rail PoE Switches (-40~75 °C)
  • Hardened Rackmount PoE and Non-PoE Switches (-40~75 °C)
  • Media Converters
  • Ethernet Extenders
  • SFP Modules
  • Power Supplies
  • Surge Protector
  • Rolling Stock Connectivity
  • Wayside Connectivity
  • Hardened EN50155 M12 Switches (-40~75 °C) Note:

    Part #

    Ports

    Description

    ER59402-201T0

    16 TX M12 + 2 GT

    Managed 16 10/100TX M12 + 2 GT , 12 – 48VDC Power Input,with IP67  

    ER59402-201GT

    16 TX M12 (8 x PoE+), + 2 GT 

    Managed 16 10/100TX M12 (8x PoE+ 30W), +2 GT , 240W Power Budget , 52 – 57VDC Power Input, with IP67 

    ER58802-201HT

    8 TX M12 PoE+, + 2 GT M12 

    Managed 8 10/100TX M12 PoE+(30W), 2 GT M12, 120W Power Budget , 24 – 48VDC Power Input 

    ER52082-1

    8 TX M12 PoE+, + 2 GT M12 

    Unmanaged 8 10/100TX M12 PoE+(30W) + 2 GT M12, 120W Power Budget,110VDC Power Input 


    Hardened Din-Rail PoE and Non-PoE Switches (-40~75 °C) Note:
    Power Supplies Sold Separately for Din-Rail Switches

    Part #

    Ports

    Description

    EX78931-0VB 

    12 GT(8 x PoE++), + 4 GE SFP 

    Managed 12 GT (8 PoE++ 60W), + 4 GE SFP, 240W Power Budget , 52 – 57VDC Power Input

    EX78802-01B 

    8 TX PoE+, + 2 GT

    Managed 8 10/100TX PoE+(30W), +2 GT, 180W Power Budget , 47 – 57VDC Power Input

    EX78802-0VB

    8 TX PoE+, + 2 GE SFP 

    Managed 8 10/100TX PoE+(30W), 2 GE SFP, 180W Power Budget , 47 – 57VDC Power Input

    EX78602-01B

    6 TX PoE++, + 2 GT 

    Managed 6 10/100TX PoE++ (4x 30W+2x 60W) + 2 GT, 180W Power Budget, 52 – 57VDC Power Input

    EX73931-0VB 12 GT + 4 GE SFP Managed Lite Layer 3 (LL3) Switch; 12 GT + 4 GE SFP, 12 – 48VDC Power Input
    EX71802-0VB 8 TX + 2 GE SFP Managed 8 10/100TX + 2 GE SFP, 12 – 48VDC Power Input
    EX71802-0AB 8 TX + 2 GE Fiber LX 10Km SC Managed 8 10/100TX + 2 GE Fiber Single-Mode 10Km SC, 12 – 48VDC Power Input
    EX71620-10B 6 TX + 2 Fiber MM 2Km SC Managed 6 10/100TX + 2 100FX Fiber Multi-Mode 2Km SC, 12 – 48VDC Power Input
    EX71620-A0B 6 TX + 2 Fiber SM 20Km SC Managed 6 10/100TX + 2 100FX Fiber Single-Mode 20Km SC, 12 – 48VDC Power Input
    EX71440-10B 4 TX + 4 Fiber MM 2Km SC Managed 6 10/100TX + 4 100FX Fiber Multi-Mode 2Km SC, 12 – 48VDC Power Input
    EX71440-A0B 4 TX + 4 Fiber SM 20Km SC Managed 6 10/100TX + 4 100FX Fiber Single-Mode 20Km SC, 12 – 48VDC Power Input
    EX73402-01B 16 TX + 2 GT Managed 16 10/100TX + 2 GT, 12 – 48VDC Power Input
    EX73402-0AB 16 TX + 2 GE Fiber LX 10Km SC Managed 16 10/100 TX + 2 GE Fiber Single-Mode 10Km SC, 12 – 48VDC Power Input
    EX73322-1AB 12 TX + 2 Fiber MM 2Km SC + 2 GE Fiber LX 10Km SC Managed 12 10/100 TX + 2 100FX Fiber Multi-Mode 2Km SC + 2 GE Fiber Single-Mode 10Km SC, 12 – 48VDC Power Input
    EX73242-1AB 12 TX + 4 Fiber MM 2Km SC + 2 GE Fiber LX 10Km SC Managed 12 10/100 TX + 4 100FX Fiber Multi-Mode 2Km SC + 2 GE Fiber Single-Mode 10Km SC, 12 – 48VDC Power Input
    EX46908A-0-J 8 GT PoE+ Unmanaged 8 GT PoE+(30W) 120W PoE Power Budget, 18 - 57VDC Power Input
    EX46928A-V-J 8 GT PoE+ , + 2 GE SFP Unmanaged 8 GT PoE+ (30W) + 2 GE SFP, 120W PoE Power Budget, 18 - 57VDC Power Input
    EX46928A-A-J 8 GT PoE+ , + 2 GE Fiber LX 10Km SC Unmanaged 8 GT PoE+ (30W) + 2 GE Fiber Single-Mode 10Km SC, 120W PoE Power Budget, 18 - 57VDC Power Input
    EX45905 5GT (4 x PoE+) Unmanaged 5 GT (4 ports PoE+ 30W) , 120W PoE Power Budget, 24/48VDC Power Input
    EX45915-V 5GT (4 x PoE+) + 1 GE SFP Unmanaged 5 GT (4 ports PoE+ 30W) + 1 GE SFP, 120W PoE Power Budget, 24/48VDC Power Input
    EX45915-A 5GT (4 x PoE+) + 1 GE Fiber LX 10Km SC Unmanaged 5 GT (4 ports PoE+ 30W) + 1 GE Fiber Single-Mode 10Km SC, 120W PoE Power Budget, 24/48VDC Power Input
    EX42305 4TX (4 x PoE+) +1GT Unmanaged 4 10/100TX (4 ports PoE+ 30W) + 1 GT, Din-Rail, 120W Power Budget, 24/48VDC Power Input
    EX42315-V 4TX (4 x P PoE+) +1 GT + 1GE SFP Unmanaged 4 10/100TX (4 ports PoE+ 30W) +1 GT  +1 GE SFP, 120W Power Budget, 24/48VDC


    Hardened Rackmount PoE and Non-PoE Switches (-40~75 °C) Note:
    Power Supplies Sold Separately for Din-Rail Switches

    Part #

    Ports

    Description

    EX76402-01TT

    16 TX PoE+, + 2 GT

    Managed 16 10/100TX PoE+(30W) + 2 GT, 480W PoE Budget, 48-57VDC Power Input

    EX76402-0ATT 

    16 TX PoE+, + 2 GE Fiber LX 10Km SC

    Managed 16 10/100TX PoE+(30W) + 2 GE Fiber Single-Mode 10Km SC, 246.4W PoE Budget, 48-57VDC Power Input

    EX75604-04VGT

    24 TX PoE+, + 4 GE SFP 

    Managed 24 10/100TX PoE+(30W) + 4 GE SFP, 420W PoE Budget, 48-57VDC Power Input 

    EX77604-00VC

    24 TX  + 4 GE SFP Combo 

    Managed 24 10/100TX + 4 GE SFP Combo, 48VDC or 90-264VAC Power Input 

    EX89000-00C

    Up to 24 FE + 4 GE

    Managed Modular 1U Chassis Switch, Modules Ordered Separately, 48VDC or 90 - 264VAC Power Input

     
    Media Converters Note:
    Power Supplies Sold Separately for Din-Rail Media Converters

    Part #

    Ports

    Description

    EL100C

    1 TX, 1 Fiber MM 2Km SC

    Commercial Unmanaged 10/100TX to 100FX Multi-Mode 2Km SC, Power Adapter Included 

    EL100C-20 

    1 TX, 1 Fiber SM 20Km SC  Commercial Unmanaged 10/100TX to 100FX Single-Mode 20Km SC, Power Adapter Included 

    EX42011-1A-1-A

    1 TX, 1 Fiber MM 2Km SC Industrial Unmanaged 10/100TX to 100FX Multi-Mode 2Km SC, Power Adapter Included

    EX42011-2A-1-A

    1 TX, 1 Fiber SM 20Km SC Industrial Unmanaged 10/100TX to 100FX Single-Mode 20Km SC, Power Adapter Included
    EL900-A-B-1-A 1 TX, 1 Fiber MM 2Km SC  Hardened Din-Rail Unmanaged 10/100TX to 100FX Multi-Mode 2Km SC, 10-48VDC Power Input
    EL900-A-N-1-A  1 TX, 1 Fiber SM 20Km SC Hardened Din-Rail Unmanaged 10/100TX to 100FX Single-Mode 20Km SC, 10-48VDC Power Input
    EM1100TLC-10 1 GT, 1 GE Fiber LX 10Km SC Commercial Unmanaged 10/100/1000TX to GE Fiber Single-Mode 10Km SC, Power Adapter Included
    EL2315 1 GT, 1 100BASE/1000BASE-X SFP Commercial Unmanaged 10/100/1000TX to 100BASE/1000BASE-X Dual Rate SFP, Power Adapter Included 
    EL9100-A1B 1 GX, 1 Fiber LX 10Km SC Hardened Din-Rail Unmanaged 10/100/1000TX to GE Fiber Single-Mode 10Km SC, 12-48VDC Power Input
    EMC400-EPWS 4-Bay Commercial 4-slot Din-Rail Media Converter Chassis with two DR-30-12 Power Supplies in the Package
    EMC1600 16-Bay Commercial Media Converter Chassis. 19" Rack Mount Redundant Power Supplies, 100VAC - 260VAC

     
    Ethernet Extenders Note:
    Power Supplies Sold Separately for Din-Rail Ethernet Extenders

    Part #

    Ports

    Description

    ED3501-U 1 TX, 1 Copper pair Unmanaged 1 10/100TX Port to 1 Copper Pair, Power Adapter Included
    ED3541-00B 1 TX, 1 Copper pair Hardened Din-Rail Unmanaged 10/100TX Port to 1 Copper Pair, PSU Sold Separately
    ED3575-622 6 FE, 2 GE, 2 Copper Hardened Din-Rail Managed 6 10/100TX + 2 GE SFP Combo + 2 Copper Pair, PSU Sold Separately
    ED3238-TRU 1 TX PoE, 1 Coaxial Unmanaged 10/100TX PoE (15.4W) Ethernet Extender over RG6, RG11, or RG59 Coaxial Cable, included one ED3238T, one ED3238R and Power Adaptor, USA Type
    ED3638 1 TX PoE+, 1 Coaxial Hardened Din-Rail Unmanaged 10/100TX PoE+ (30W) Ethernet Extender over RG6, RG11, or RG59 Coaxial Cable, included one ED3638T, one ED3638R , PSU Sold Separately
    ED3538 1 TX PoE+, 1 Copper Hardened Din-Rail Unmanaged 10/100TX PoE+ (30W) Ethernet Extender over Copper pair , included one ED3538T, one ED3538R, PSU Sold Separately


    SFP Modules

    Part #

    Ports

    Description

    EX-1250TSP-MB2L-AS 1 GE SFP SFP Module, Hardened (-40°C - 85°C) Gigabit, Duplex LC, 1310nm, 2Km
    EX-1250TSP-MB4L-AS 1 GE SFP SFP Module, Hardened (-40°C - 85°C) Gigabit, Duplex LC, 1310nm, 10Km
    EX-1250TSP-MB5L-AS 1 GE SFP SFP Module, Hardened (-40°C - 85°C) Gigabit, Duplex LC, 1310nm, 20Km
    EX-LS38-C3L-TI-N-CE 1 GE SFP SFP Module, Hardened (-40°C - 85°C) GE, DDM, Single LC, TX:1310nm, RX:1550nm 40Km
    EX-LS48-C3L-TI-N-CE 1 GE SFP SFP Module, Hardened (-40°C - 85°C) GE, DDM, Single LC, TX:1550nm, RX:1310nm 40Km
    EX-LS48-C3U-TI-N-EB 1 GE SFP SFP Module, Hardened (-40°C - 85°C) GE, DDM, Duplex LC, 1550nm, 70Km


    Power Supplies

    Part #

    Volts/Watts

    Description

    SDR-240-48 

    48-55VDC/240W 

    Hardened Din-Rail PSU 88-264VAC(47-63Hz) or 124-370VDC Input, 48-55VDC Output 

    SDR-480-48 

    48-55VDC/480W 

    Hardened Din-Rail PSU 90-264VAC(47-63Hz) or 124-370VDC Input, 48-55VDC Output 


    Surge Protector 

    Part #

    Description

    PD1041

    Hardened RJ45 Surge Protection Device

    PD3041

    Hardened Copper Wire RJ11 Surge Protection Device

    Rolling Stock Connectivity for End Device Connectivity

    Number of Cameras, 1 NVR, 1 Uplink

    Recommend

    Up to 8 M12 end devices + 2G Uplinks

    ER52082-I unmanaged 8 10/100/1000TX M12 PoE+ (30W) + 2 GT M12 (-40~75°C)

    Up to 8 M12 end devices + 2G Uplinks, Redundant Path requirement

    ER58802-201HT Managed 8 10/100TX M12 PoE+ (30W) + 2 GT M12 (-40~75°C)

    Up to 16 M12 end devices + 2G Uplinks, Redundant Path and IP67 requirement 

    ER59402-201GT Managed 16 10/100TX M12 (8x PoE+ 30W) + 2GT (-40~75°C), IP67 

     
    Wayside Connectivity for End Device Connectivity

    Number of Cameras, 1 NVR, 1 Uplink

    Recommend

    Up to 8 end devices EX71800-00B Managed 8 10/100TX (-40~75°C)
    Up to 8 end devices + 2G Uplinks EX71802-0VB Managed 8 10/100TX + 2 GE SFP (-40~75°C)
    Up to 12 GE end devices, 4G Fiber Uplink Ports EX73931-0VB Managed 12 10/100/1000TX + 4 GE SFP Lite L3 Switch (-40~75°C)

    Case I. 4 PTZ Cameras, 2-4 Non PTZ Cameras, 4 Uplinks Case II. 4 APs with heater, 4 Uplinks

    (Choose 60W PoE Switch for over 30W PoE PD camera or AP)
    EX78931-0VB Managed 12 10/100/1000TX PoE++ (8x60W) + 4 GE SFP uplinks, 240W Power Budget (-40~75°C)

    Case I. 2 PTZ Cameras + 2-4 Non PTZ Cameras, 2 Uplinks Case II. 2 APs with heater+ 2-4 Non PTZ Cameras, 2 Uplinks

    (Choose 60W PoE Switch for over 30W PoE PD camera or AP)
    EX78602-0VB Managed 6 10/100TX PoE++(4x 30W+2x60W) + 2 GE SFP uplinks, 180W PoE Power Budget (-40~75°C)
    Up to 8 Cameras or Wireless APs with PoE, 2 Uplinks EX78802-0VB-T Managed 8 10/100TX PoE+(30W) + 2 GE SFP, 180W PoE Power Budget (-40~75°C)
    Up to 4 Cameras or Wireless APs With PoE, 1 Uplink EX45915-V Unmanaged 5 10/100/1000TX (4 x PoE+ 30W) + 1 GE SFP, 180W PoE Power Budget (-40~75°C)