Description
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | ABB |
| Model | DSTC190 / DSTC 190 |
| Order number | 57520001-ER |
| Alternate designation | 57520001-ER/1 |
| Product type | Communications connection unit |
| Product family | ABB Advant Master / Advant OCS |
| Network association | MasterBus 300 |
| Interface standard | IEEE 802.3 |
| Network function | Communication connection between the Ethernet-side interface and MasterBus 300 physical network |
| Controller context | Advant Master / MasterPiece systems; confirm exact configuration |
| Associated reference | IN5752-1001-BP/01 |
| Associated cable reference | DSTK126; confirm suitability for the installed network |
| Supply voltage | Not verified |
| Connector details | Confirm from the unit and installation documentation |
| Dimensions and weight | Supplier listings vary; verify the actual hardware |
| Condition | Confirm with supplier |
Application Scenarios & Pain Points
- Legacy DCS communication restoration: Replace a failed connection unit in an existing Advant Master installation after verifying the network architecture.
- MasterBus 300 gateway integration: Support the appropriate physical-layer connection between compatible gateway Ethernet ports and the MasterBus 300 network.
- Maintenance of older control systems: Source a matching unit when migrating the entire control system is not part of the immediate maintenance plan.
- Communication fault investigation: Check the connection unit, cable, transceiver, controller interface, and network configuration before identifying the unit as the root cause.
A practical troubleshooting point: a controller may be running normally while communication to other stations fails. Before replacing the DSTC190, inspect the external interface, associated cabling, transceiver, and network-side configuration. A fault in any of those areas can resemble a failed connection unit.
Related Products
The following are related ABB Advant Master communication components or associated hardware. They are not all direct replacements.
- DSTC120 — Related ABB communication connection unit; verify its specific interface function before considering it as an alternative.
- DSTK126 — Associated ABB Master cable reference; confirm the cable specification and connectors for the installed network.
- DSCS140 — Communication-related module associated with MasterBus 300 installations; its role differs from the DSTC190 connection unit.
- MP200 / MasterPiece 200 — ABB controller family referenced in DSTC190 system descriptions; verify the installed controller and rack configuration.
- ABB Advant Master — Control-system family in which DSTC190 is used.
- ABB Advant OCS — Broader legacy control-system platform associated with this part.
- MasterBus 300 gateway hardware — Gateway and interface equipment used to connect compatible systems to the MasterBus 300 network; exact interface requirements must be confirmed.

DSTC190
The Engineer’s Guide
Trap 1: Confusing IEEE 802.3 connectivity with a standard Ethernet switch
Warning: DSTC190 is a connection unit for the MasterBus 300 communication environment, not a generic Ethernet switch.
Practical tip: Confirm the network’s physical-layer requirements and the exact interface arrangement. Do not connect it to a modern Ethernet network based on the IEEE 802.3 description alone.
Trap 2: Overlooking the associated transceiver and cable
The connection unit’s operation depends on the correct external interface and network wiring.
Practical tip: Check the transceiver type, cable reference, connectors, and installed network topology. Verify whether the existing installation uses one or two MasterBus 300 networks.
Trap 3: Assuming a similar part number is interchangeable
The DSTC120 and belong to related communication hardware categories but have different model designations.
Practical tip: Match the complete order number, installed controller configuration, and original documentation before approving a substitute.
Frequently Asked Questions
1. What is the ABB used for?
The is an ABB communications connection unit associated with IEEE 802.3 connectivity and the MasterBus 300 network in Advant Master control systems. It provides a network-interface function rather than performing controller application logic.
2. What is the order number for ?
The main associated order number is 57520001-ER. Catalogs also list 57520001-ER/1 and the reference IN5752-1001-BP/01. Compare the actual unit’s label with the equipment documentation before ordering.
3. Does support MasterBus 300?
Yes. Product documentation and system references associate with the MasterBus 300 physical network. The required transceiver, cable, and controller interface depend on the installed architecture.
4. Can be used as a regular Ethernet adapter?
Do not assume so. Although its documentation references IEEE 802.3, the is associated with the MasterBus 300 network interface. Confirm the physical-layer conversion and network requirements before attempting to connect it to other Ethernet equipment.
5. What should I check before replacing a ?
Verify the complete order number, controller or gateway model, network topology, external transceiver, cable arrangement, and interface configuration. After installation, follow the site’s approved procedure for checking communication with the intended network stations.
6. How can I verify the condition of a replacement ?
Request photographs of the actual unit and its identification label. Ask whether it is new, surplus, refurbished, or used, and request any available inspection or functional-test records. Confirm whether associated connectors or accessories are included.
7. What are the lead time and warranty for ABB ?
These depend on the supplier and the specific unit. Request written confirmation of stock status, delivery estimate, warranty period, return terms, and available test documentation. Since is legacy communication hardware, verify compatibility before scheduling installation or a planned outage.
