Hirschmann ACA22-USB EEC Procurement Guide for 512 MB USB 2.0 Switch Configuration Backup and Maintenance Replacement
Hirschmann ACA22-USB EEC is an industrial auto-configuration adapter intended to support managed-switch commissioning, configuration backup and replacement. It stores switch configuration data and operating software so maintenance teams can prepare a controlled device-change workflow without treating a visually similar adapter as interchangeable.
Replacement decision in brief
For a planned replacement, Hirschmann ACA22-USB EEC should be evaluated together with the managed switch, firmware, stored configuration, connector style, environmental conditions and commissioning procedure. Saving a configuration does not by itself validate network design or application compatibility.
Product data for procurement
| Brand / family | Hirschmann / ACA auto-configuration adapter |
| Type | ACA22-USB EEC |
| Product code | 942124001 |
| Storage capacity | 512 MB |
| Connection | USB Type A, USB 2.0 |
| Cable / format | 50 cm |
| Power supply | Powered through the USB interface |
| Operating temperature | -40 to +70 °C reference |
| Storage temperature | -40 to +85 °C reference |
| Relative humidity | 10–95%, non-condensing reference |
| Weight | 50 g |
| Protection class | IP20 |
| MTBF reference | 228 years |
Reference image notice: this is a shared Hirschmann industrial-networking stock image. The visible device label may show another Hirschmann model, so it is not an exact photograph of Hirschmann ACA22-USB EEC. Use the Type and product code on the quotation, packaging and delivered label for final identification.
ACA22 USB 2.0 selection points
The official Belden catalog identifies product code 942124001, 512 MB storage, a USB Type A, USB 2.0 connection and an extended operating-temperature reference of -40 to +70 °C. These values are procurement references; the current datasheet and the target switch documentation remain decisive.
The USB Type A interface, 50 cm cable and IP20 reference distinguish Hirschmann ACA22-USB EEC from M12 IP67 variants. The 512 MB capacity also separates it from the 64 MB ACA21 generation.
Replacement and RFQ checklist
- Confirm the full Type Hirschmann ACA22-USB EEC and product code 942124001.
- Match the physical interface: USB Type A, USB 2.0; do not select only by storage capacity.
- Check that the target switch and its software release support the selected ACA generation.
- Record the existing switch model, firmware version, network role and current adapter label.
- Confirm whether IP20 and the listed temperature range suit the installation.
- Include quantity, destination, required delivery date and photographs in the RFQ.
Answers to common model questions
What does Hirschmann ACA22-USB EEC store?
Belden documentation states that the adapter can retain two versions of configuration data and operating software from the connected switch.
Can it be selected only by connector appearance?
No. ACA21 and ACA22 products differ in storage generation and USB version, while M12 and USB variants also differ in connection and protection. Verify the complete Type and product code.
Does the adapter remove the need to check switch compatibility?
No. Compatibility, software release, configuration process and project approvals should be confirmed for the actual switch and network before ordering or replacement.
Certification and environmental context
Catalog approval references include cUL508, Class 1 Division 2 / ATEX Zone 2, DNV and EN 50121-4 references. Approval applicability varies by hardware revision, installation country and project, so certificates should be checked against the exact product code before use.
Availability enquiry with HKXY
To request Hirschmann ACA22-USB EEC, send product code 942124001, the current switch Type and firmware, quantity, destination and target delivery date. The full code prevents confusion with ACA21-USB EEC.
Official catalog reference: Belden product page for Hirschmann ACA22-USB EEC.
