Description
Bosch Rexroth DCIO-2/MK-UL | Power Supply Board | 1070086498-102
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Bosch Rexroth |
| Model | DCIO-2/MK-UL |
| Alternative Model Format | DCIO 2/MK-UL |
| Board Type | Power Supply Board |
| Associated Part Number | 1070086498-102 |
| System Role | Control-system power electronics |
| Product Form | PCB / electronic assembly |
| Weight Reference | Approx. 0.85 kg shipping weight in one inventory record |
| Exact Input Voltage | Verify from board label/system documentation |
| Exact Output Voltage | Verify from board label/system documentation |
| Communication Interface | Do not assume |
| Digital I/O Channels | Not established for this part |
The available evidence does not support publishing the commonly repeated claims of 12–24 VDC operation, two digital inputs/two outputs, Modbus RTU, Ethernet/IP, or IP67 protection. Those specifications appear on reseller pages that also contradict themselves elsewhere on the same page.
Product Introduction
Bosch Rexroth DCIO-2/MK-UL Power Supply Board
The Bosch Rexroth DCIO-2/MK-UL is identified in current industrial-spares records as a legacy power supply board, with 1070086498-102 associated directly with the assembly. This makes it important to distinguish the board from generic DC I/O modules that happen to use the DCIO designation.
A second inventory record associates DCIO2MKUL with 1070086497-102 and PROFIBUS, showing that multiple references may circulate under the same model designation. That discrepancy should be resolved from the actual PCB label, connector arrangement, and host-machine documentation before purchasing a replacement.
DCIO-2/MK-UL
Application Scenarios & Field Pitfalls — Engineer’s Perspective
Engineering Pain Point
The main procurement risk with the DCIO-2/MK-UL is misidentification. Search results frequently describe it as a digital input/output module, while other records identify it as a Bosch Rexroth power-supply board. Installing a board based only on the model string can therefore result in an electrically incompatible replacement.
Typical Applications
- Bosch Rexroth Control Equipment — Replacement of an aging control-system power board.
- Legacy Machine Controllers — Maintenance of older Rexroth electronic control assemblies.
- Production Equipment Repair — Recovery of systems where the original board is no longer readily available.
- Spare-Parts Programs — Maintaining a tested board for an installed legacy system.
Technical Pitfalls to Avoid
1. Do not assume DCIO means digital I/O.
The strongest available evidence identifies this particular DCIO-2/MK-UL as a power supply board, not a conventional two-channel or eight-channel digital I/O module.
2. Verify the complete Bosch part number.
The references 1070086497-102 and 1070086498-102 are both associated with DCIO 2/MK-UL records. They should not automatically be treated as interchangeable.
3. Match the host system, not just the PCB.
For a legacy Rexroth board, connector pinout, mounting position, revision, firmware-dependent hardware, and the surrounding control architecture can matter more than superficial dimensional similarity.
4. Reject unsupported I/O specifications.
Claims such as “8 digital inputs and outputs,” “Modbus TCP,” “IP67,” or “24 VDC universal operation” should not be used for this product unless confirmed by an OEM document or the physical assembly. One reseller page contains mutually inconsistent versions of these specifications.
Related Products
- 1070086498-102 — Power-supply-board reference directly associated with the /MK-UL.
- 1070086497-102 — Another reference associated with DCIO 2/MK-UL; verify function and revision before substitution.
- DCIO2MKUL — Alternate condensed ordering notation for /MK-UL.
- Bosch Rexroth control-system power boards — Related legacy PCB assemblies should be matched by complete ordering number rather than visual similarity.
- Bosch Rexroth PROFIBUS hardware — Relevant when the installed DCIO variant is confirmed to be the 1070086497-102 configuration.
Procurement Guidance
For a replacement, request the following information from the installed unit:
- Complete Bosch/Rexroth part number
- PCB revision
- Serial number
- Connector configuration
- Host machine or controller model
- Input and output voltage markings
- Any PROFIBUS or other communication marking
- Original board photographs
- Existing system documentation
- Condition: new surplus, used-tested, or repaired
Engineering recommendation: do not purchase this part solely from a listing that describes it as a generic digital I/O module. The available evidence points to a Bosch Rexroth power-supply-board application, while another record maps the model to a different part number and PROFIBUS designation. The physical nameplate and host-system documentation should take precedence over reseller-generated specifications.
