Description
Product Introduction & Engineering Value
A failed network power supply can interrupt an entire automation segment even when every switch port and configuration file is still healthy. The Extreme Networks STK-RPS-150PS provides external redundant power support for compatible non-PoE fixed switches, allowing critical network equipment to continue operating during internal power supply failures.
For industrial environments using legacy Ethernet infrastructure, maintaining an STK-RPS-150PS spare can reduce recovery time during unexpected hardware faults. The key engineering checks are switch compatibility, correct RPS cabling, and avoiding connection to unsupported PoE switch models.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Extreme Networks |
| Model | STK-RPS-150PS |
| Product Type | External Redundant Power Supply |
| Application | Non-PoE Extreme Networks stackable and standalone switches |
| Rated Output Power | 150 W |
| Output Voltage | 12 VDC |
| AC Input Voltage | 100–240 VAC |
| AC Input Frequency | 50–60 Hz |
| Maximum Output Current | 8.5 A / 13.0 A (configuration dependent) |
| Mounting Options | Standalone installation or RPS shelf mounting |
| Compatible Shelves | STK-RPS-150CH2, STK-RPS-150CH8 |
| Rack Installation | Standard 19-inch rack via RPS shelf |
| Status Monitoring | Front-panel power status LED |
Field Application & The “Trench” Experience
A manufacturing plant operating an older Ethernet control network began experiencing intermittent switch shutdowns in a production area. The network team initially suspected firmware instability because several automation devices temporarily disappeared from the supervisory system.
During troubleshooting, engineers found that the internal switch power supply was degrading under load. Instead of replacing the entire network switch infrastructure, they installed a verified Extreme Networks STK-RPS-150PS redundant power supply and restored the backup power path.
After validating the RPS connection and switch compatibility, the affected network segment returned to stable operation without replacing the existing automation communication architecture.
Typical application scenarios include:
- Industrial Ethernet switch cabinets supporting PLC and DCS networks
- Factory-floor communication networks using Extreme X440/X450 series switches
- Control system network nodes requiring external power redundancy
STK-RPS-150PS
STK-RPS-150PS
Transparency SOP: QA & Testing
STK-RPS-150PS inspection and verification workflow
1. Physical Examination
- Confirm model identification label.
- Inspect housing, AC connector, RPS connector, and mounting hardware.
- Check for overheating marks, impact damage, or corrosion.
2. Electrical Verification
- Test AC input acceptance.
- Verify 12 VDC output stability.
- Check power status indication.
3. Functional Testing
- Connect with compatible test equipment when available.
- Verify redundant power output behavior.
- Confirm alarm/status functions.
4. Final Release
- Record inspection results.
- Apply ESD protection.
- Package with connector protection for transportation.
The Veteran’s Tech Trap Guide
⚠️ Do Not Connect STK-RPS-150PS to PoE Switch Models
The STK-RPS-150PS is designed for non-PoE switch applications. Connecting it to unsupported PoE-capable fixed switches can cause equipment damage.
PRO TIP:
Verify the exact switch model before installation. The RPS part number alone is not enough.
⚠️ Use the Correct RPS Cable
The dedicated RPS cable is part of the power system design. Using incorrect cabling can create compatibility problems or unsafe operating conditions.
⚠️ Power Sequence Matters
When connecting an RPS to a switch, follow the manufacturer procedure. Avoid attaching the RPS cable to an operational switch unless the installation guide specifically allows it.
Dynamic FAQ
Q1: What is the Extreme Networks STK-RPS-150PS used for?
The STK-RPS-150PS is a 150 W external redundant power supply designed for compatible non-PoE Extreme Networks stackable and standalone switches.
Q2: What voltage output does the STK-RPS-150PS provide?
The module provides a 12 VDC output for supported network switch platforms.
Q3: Which switches are compatible with the STK-RPS-150PS?
Compatibility depends on the specific Extreme Networks switch model. It is commonly used with selected Summit, X440-G2, X450-G2, and related non-PoE switch families.
Q4: Can a New Surplus STK-RPS-150PS be installed directly?
A New Surplus unit should still be inspected, electrically verified, and checked against the installed switch model before deployment.
Q5: What should be tested on a refurbished STK-RPS-150PS?
Recommended checks include input voltage verification, 12 VDC output measurement, LED status inspection, and functional testing with a compatible switch.
Q6: Is warranty available for refurbished STK-RPS-150PS units?
Warranty depends on the supplier. A properly refurbished unit should include inspection records, testing documentation, and defined warranty terms.
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