DH+ Bus HUB Repeater

Support Allen-Bradley DH, DH+ and Remote I/O fieldbus
3 ports HUB function for star topology
Extend the fieldbus transmission distance
Support DIP switches for communication rate settings
Photon-coupled isolation for ports
Support alarm output for fieldbus ports errors
Dual redundant power input with high voltage isolation
IP40 protection rating, Metal case, 35mm DIN-Rail Mounting
Support -40~75°C wide operating temperature range
Overview Specifications Models Resources

Overview of DH+ Bus HUB Repeater

This series is designed for industrial grade Repeater HUB which supports Allen-Bradley DH, DH+ and Remote I/O fieldbus. It provide 3 channels fieldbus serial ports data communication. The hub repeater support star topology. It can extend the fieldbus transmission distance and change fieldbus diagram. Additionally, it has photon-coupled isolation for suppressing signal interferences on the bus. The baud rate can be set by DIP switches.

The product is industrial grad designed, casing: IP40 protection, DIN rail mounting, DC (9~36V) power input, support Fieldbus ports error Relay alarm output, dual redundant power input and isolation protection. -40~75°C Operating Temperature, can meet various Industrial situation.

Specifications of DH+ Bus HUB Repeater

Serial Port Supports Allen-Bradley DH, DH+ and Remote I/O fieldbus
SER1, SER2 industrial terminal wiring
Support for A-B DH&DH+&Remote I/O Fieldbus protocol
Baud Rates: 57.6Kbps/115.2Kbps/230.4Kbps
Signal Delay (electrical interface): ≤ 7Bit
Isolated voltage 1KV, 4KV Anti-thunder protection
Without terminal resistor, connect external when necessary
Power Supply
      DC (9~36V) dual redundant power input
      Industrial standard voltage DC 24V, Consumption is less than 4W
      DC 1500V voltage isolation and reverse connect protection
    5.08mm pitch terminal blocks
      Relay: Fieldbus ports error Relay alarm output

    Contact rating: 1A @24V DC, Industrial Terminal port
      Dimensions (H×D×W): 136mm×104.8mm×52.8mm

      Weight: 800g

      Casing: IP40 protection, wave grain aluminum reinforce case option

      Installation: Wall mounting or DIN rail mounting


      Operating Temperature:-40℃~75℃(-40℃~85℃ optional)

      Storage Temperature: -40℃~85℃

      Ambient Relative Humidity: 5%~95%(non-condensing)


    IEC61000-4-2 (ESD): Power ±2KV Contact, ±15KV Air
      Relay ±2KV Contact, ±15KV Air; Data Cable ±15KV Air
      IEC61000-4-4 (EFT):Power ±4KV, Data Cable ±4KV
      IEC61000-4-5 (Surge):Power ±2KV CM/ ±1KV DM, Relay±2KV CM/ ±1KV DM
      IEC60068-2-27 (Shock)
      IEC60068-2-32 (Free Fall)
      IEC61000-6-2 (General Industrial Standard)
Warranty 5 years

Models of DH+ Bus HUB Repeater

Available Models



3x A-B DH&DH+&Remote I/O ports,Baud Rates 230.4Kbps (57.6Kbps, 115.2Kbps optional)





  Ci-HH30 Series Datasheet 



  Ci-HH30 Series Quick Installation Guide