InterBus is a sensor/actuator bus system, well suited for industrial use that provides consistent networking from the control level down to the last limit switch. It utilizes a single cable to interconnect all devices, no matter the level of complexity, and allows its users the advantage of reducing overall control system installation and maintenance costs. |
Belden 3120A for InterBus |
| Features of InterBus |
The physical layer media and its operation are unique to InterBus. It transmits data via a token passing ring on a multi-pair cable from remote node to remote node.
InterBus is based on a simple operation and robust technology, but incorporates features required for a successful open network. Features such as a universal solution for all automation tasks and neutrality towards most major PLC manufacturers.
| Applications |
The precise electrical characteristics resultant of manufacturing processes that have made Belden a world leader, make these cables a terrific candidate for the following applications:
- Material Handling
- Industrial Automation
- Food and Beverage
- Automotive Industry
- Packaging
- Mill Operations
- Process Engineering
| Belden Cable for InterBus |
The Belden cables for InterBus systems are designed to be compatible with these interoperable and interchangeable devices from major PLC vendors. They provide a variety of standard product options that allow connection of actuators, sensors, and control level devices.
We begin by manufacturing our own tinned copper conductors, which allow ease of termination and corrosion resistance. The cable is completed with our own specially formulated, oil resistant, industrial grade, green Polyurethane jacket.
| Features of cables for InterBus |
- Data, power, and control in one cable
- Low capacitance
- Reliable signal transfer
- 100% coverage Beldfoil shield for noise protection
- Tinned copper drain wire for easy termination of shield
- Special constructions including armor or extremely heavy-duty industrial jackets
- High visibility, rugged green jacket
| Specifications |
| Conductor: Stranded Tinned Copper Insulation: PE(data pairs), PVC(power pairs) Shield: Beldfoil® and Tinned Copper Braid Jacket: Green PUR Jacket -40 to +80 degree C Impedance: 100 ohms(data pairs) Velocity of Propagation: 66%(data pairs) Capacitance: 15.4pF/ft.(data pairs) Standard Lengths: 500ft. & 100ft. |
Belden 3120A for InterBus |
| Product Information |
| Trade
No. UL NEC C(UL) CEC Type |
Standard Lengths ft. |
AWG (stranding) dia. Inches Nom. DCR |
Insulation material (color code) |
Nominal O.D. inches |
Nom Impedance (ohms) |
Nom. Vel. of Prop. |
Nominal Capacitance |
Shield Type and Coverage |
| 3119A 300V |
500 1,000 |
#18/3C tinned/Cu 6.0 ohm/M' #24/3PR tinned/Cu 24 ohm/M' |
Power pair PVC red/blue Data pair(PE) pink/gray; brn/wht/ylw/grn |
0.333 | 100 (data pair) |
Data pair 66% |
15.4 pF/ft | Overall Beldfoil 100% 90% TC Braid |
| Green PUR jacket | ||||||||
| 3120A 300V |
500 1,000 |
#24/3PR tinned/Cu 17.5ohm/M' |
PE white/brown pink/gray yellow/green |
0.313 | 100 | 78% | 15.4 pF/ft | Overall Beldfoil 100% 90% TC braid |
| Green PUR jacket | ||||||||
| InterBus allows users to realize improved process control and
diagnostics on a single serial connection. This type of installation as seen here to the
right, also reduces the cost of wiring and the hassles associated with traditional
parallel wiring. Changeovers and new builds are completed quicker with InterBus cables - every device does not require its own dedicated twisted pair for connection. |
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| Belden Industrial Products |
1-888-BELDEN-8 |