PRO4X Frequently Asked Questions
Outlet Configuration FAQs
- What outlet configurations are available on PRO4X PDUs?
- When will the new Cx4 and C13/C15 combination outlets be available on PRO4X PDUs?
- Can I upgrade my existing PRO4X PDUs already in production to the new Cx4 and C13/C15 combination outlets?
- Are the PRO4X’s outlets rated for high temperature?
- Does the PDU’s operating temperature rating change with the addition of Cx4 and/or C13/C15 outlets?
- Do I need to update my current purchase orders or approved part number list because of this outlet update?
- Will the PRO4X part numbers I use today change?
- Are the new Cx4 and C13/C15 combination outlets compatible with existing power cords/jumper cables?
- Do any of the power ratings change with PRO4X PDUs using the new Cx4 and C13/C15 combination outlets?
- Is there any change to how I’d interact with a PRO4X PDU that includes the Cx4 and/or C13/C15 combination outlets?
- Will my PDUs’ price change to accommodate the new Cx4 and C13/C15 combination outlets?
- How will the Cx4 and C13/C15 outlet configuration change impact lead times?
Firmware & iX Controller FAQs
- What is the default username and password for the PRO4X?
- How do I link the PRO4X PDUs?
- Can I link the PRO4X with PRO3X or PRO2X models?
- Can PRO4X PDUs be cascaded?
- Where can I find the MIB?
- Where can I find firmware updates?
- How do I manually reset my Rack PDU back to factory defaults?
- Is the firmware backward compatible with the previous generation PRO1 or PRO2 Server Technology PDUs?
- What happens to communication if power is lost to the Primary PRO4X?
- Are there alerts when breaker/fuse branch circuit protection trips?
- Can I leverage third-party management software to manage the data collected by the PRO4X PDUs?
- What does a “true hot-swappable" iX controller mean?
- What sensors are compatible with the PRO4X's Sensor port?
- How do I connect a Serial Console Server to the PRO4X?
- How do I connect a Raritan KX3 KVM Switch to the PRO4X?
- How do I connect to a CLI using the PRO4X?
- How do I access my serial device from the PRO4X?
- Does Server Technology have an IPv6 Ready Certification?
- Does Server Technology meet USGv6 requirements and capabilities?
General FAQs
Outlet Configuration FAQs
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Q: What outlet configurations are available on PRO4X PDUs?
A: When the PRO4X PDU first became available in May 2023, Cx and C13 outlet configurations were available.
- Cx outlet: A hybrid of IEC C13 and C19 outlets, the Cx outlet accommodates two types of power cords —C14 and C20— in a single outlet.
- C13 outlet: A C13 outlet accommodates a C14 power cord.
- Cx4 outlet: A hybrid of IEC C13 and C19 outlets and IEC C15 and C21 outlets, the Cx4 outlet accommodates four types of power cords – C14, C16, C20, and C22 – in a single outlet.
- C13/C15 outlet: A combination of an IEC C13 and an IEC C15 outlet, the C13/C15 outlet accommodates two types of power cords – C14 and C16 – in a single outlet.
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Q: When will the new Cx4 and C13/C15 combination outlets be available on PRO4X PDUs?
A: The Cx4 and C13/C15 outlet options will be introduced for PRO4X Rack PDUs starting in Q1 2026. The new combination outlets will be implemented as a rolling change, meaning that after the first availability date, newly manufactured PRO4X PDUs will include Cx4 and C13/C15 outlet configurations.*
*When you place a PRO4X PDU order, due to this gradual rollout, you might receive PDUs with either the new Cx4 and C13/C15 outlets or the older style Cx and C13 outlets in a single order. Outlet configuration options will not be mixed on a PDU; new Cx4 and C13/C15 outlets will not appear alongside Cx or C13 outlets. Over time, Cx4 outlets will replace all Cx outlets, and C13/C15 outlets will replace all C13 outlets. -
Q: Can I upgrade my existing PRO4X PDUs already in production to the new Cx4 and C13/C15 combination outlets?
A: No, outlets are not field replaceable. -
Q: Are the PRO4X’s outlets rated for high temperature?
A: A PRO4X PDU equipped with Cx4 and/or C13/C15 outlets is compatible with C15 and C21 power cords for equipment with C16/C22 inlets. C15/C16 and C20/C21 power cords have the same current and voltage ratings as their counterparts, the C13/C14 and C19/C20, respectively. While C15/C16 and C21/C22 outlets are designed for “high temperature” environments where the pin temperature is allowed to climb to 120°C, the PRO4X’s Cx4 and/or C13/C15 have also been designed for higher temperature ratings and have been robustly designed so that the pin temperature under full load does not even reach close to 120°C. -
Q: Does the PDU’s operating temperature rating change with the addition of Cx4 and/or C13/C15 outlets?
A: No, the PDU’s temperature rating supports environments up to 60°C. -
Q: Do I need to update my current purchase orders or approved part number list because of this outlet update?
A: No, this will be a rolling change for all currently available and future PRO4X PDU part numbers. There is no need to update purchase orders or requalify the part numbers you buy today. After the implementation date, newly manufactured PRO4X PDUs will feature the new combination outlet types. -
Q: Will the PRO4X part numbers I use today change?
A: No, the numbering of existing part numbers will not change. All current catalog PRO4X PDU part numbers will be built with the new combination outlets. We understand that part number management is important to customers, which is why we have chosen to implement this as a rolling change. -
Q: Are the new Cx4 and C13/C15 combination outlets compatible with existing power cords/jumper cables?
A: Yes, existing IEC C14/C20 power cords will remain compatible with our new combination Cx4 and C13/C15 outlets. The new Cx4 and C13/C15 outlets simply add flexibility by supporting C16 and C22 plug types. -
Q: Do any of the power ratings change with PRO4X PDUs using the new Cx4 and C13/C15 combination outlets?
A: No, the current and voltage ratings of the outlets remain unchanged. A Cx4 outlet is rated at 16A, while a C13/C15 is rated at 12A. -
Q: Is there any change to how I’d interact with a PRO4X PDU that includes the Cx4 and/or C13/C15 combination outlets?
A: There is no change. The new Cx4 and C13/C15 outlets add the flexibility to use C16 and C22 plug types. PDU ratings and certifications will remain unchanged, and new power cords will not be required as part of this rollout. If C16/C22 plugs were not already specified/required for your application, our rollout of these new outlet configurations will not change that. -
Q: Will my PDUs’ price change to accommodate the new Cx4 and C13/C15 combination outlets?
A: No, this will be a rolling manufacturing change to PRO4X part numbers, and pricing will not be affected. -
Q: How will the Cx4 and C13/C15 outlet configuration change impact lead times?
A: We do not anticipate an impact on lead times as PRO4X PDUs are transitioned to the new Cx4 and C13/C15 combination outlets.
Firmware & iX Controller FAQs
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Q: What is the default username and password for the PRO4X?
A: User Name: admin
Password: legrand -
Q: How do I link the PRO4X PDUs?
A: Linking is the logical connectivity of devices using the PRO4X's PDU Link port within the same rack/cabinet. Where you can link a single Primary PDU with multiple Link PDUs for more efficient power management. Note: Linking connects multiple PDUs, where PDU 1 is defined as the Primary PDU and then you can link up to 7 additional PDUs, called Link PDUs, totaling 8 PDUs. Once PDUs are linked, you can log into Primary PDU and use one single interface to select any PDU that is linked and see the data collected. -
Q: Can I link the PRO4X with PRO3X or PRO2X models?
A: No. All devices in the chain should be the same models and must be running the same firmware version. -
Q: Can PRO4X PDUs be cascaded?
A: Yes. Cascading is the physical connectivity of rack PDUs, connecting rack PDUs via the Ethernet port or USB A/B port (e.g., physically chaining PDU 1's USB-A port (the Primary PDU) to PDU 2's USB-B port (the Expansion PDU)) across multiple racks/cabinets. You need to define 1 PDU as the Primary PDU, then you can cascade 31 additional Expansion PDUs from the Primary, totaling 32 PDUs in the cascade/daisy chain. There are 2 different types of cascading modes to choose from after physically connecting the PDUs, they are bridging mode and port forwarding mode. Bridging mode allows for each PDU in the chain to have a separate IP address. Port forwarding mode reduces the number of IP addresses, where every PDU in the chain has the same IP address. That means 1 IP address for up to 32 PDUs, where each PDU in the chain gets assigned its own port number. Cascading is the physical connectivity of devices that reduces the number of network ports used on network switches and reduces the number of IP addresses required. -
Q: Where can I find the MIB?
A: See the PRO4X Downloads Page -
Q: Where can I find firmware updates?
A: See the PRO4X Downloads Page -
Q: How do I manually reset my Rack PDU back to factory defaults?
A: With the known admin password, open the Web UI then go to Maintenance > Unit Reset > Reset to Factory Defaults or CLI command reset factory defaults. -
Q: Is the firmware backward compatible with the previous generation PRO1 or PRO2 Server Technology PDUs?
A: PRO4X firmware is not compatible with the previous generation due to differences in architecture. -
Q: What happens to communication if power is lost to the Primary PRO4X?
A: PRO4X controllers have a PDU Link port that also provides power-sharing. Link PDUs downstream from the Primary PDU that is cascaded with the Link port will provide controller power redundancy. If the source power to the Primary PDU is lost, the controller will remain powered on to send configured notifications via power-sharing from connected link units. -
Q: Are there alerts when breaker/fuse branch circuit protection trips?
A: Yes. The PRO4X controller will display a visual and sonic alarm when the breaker trips and the branch-associated outlets will flash multi-color. These alarms are also logged in the PDU event log and sent via SNMP traps and SMTP notifications when configured in the PDU Event Rule setting. -
Q: Can I leverage third-party management software to manage the data collected by the PRO4X PDUs?
A: Yes. The PRO4X is built on the Xerus Technology Platform, Intelligent PDUs provide an SNMP MIB and open JSON and Redfish® APIs that interoperate with third-party software such as DCIM or BMS. -
Q: What does a “true hot-swappable" iX controller mean?
A: The iX Controller is hot-swappable:- It's interchangeable between like models.
- It can be purchased independently, does not require any special programming, and can be stocked as spares.
- It enables "live replacement" with no power interruption to connected equipment.
- The PDU does not need to shut down or restarted for the controller to be swapped in/out.
- The outlet states don't change when a card is swapped.
- The new controller will reprogram itself once seated using data stored "inside" the PDU chassis.
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Q: What sensors are compatible with the PRO4X's Sensor port?
A: The PRO4X supports daisy-chained DX2-series Legrand SmartSensors, each with the ability to send SNMP-based alerts and email notifications.
Note: Server Technology environmental sensors and accessories (EMTH-1-x, EMTH-2-xx, EMWS-1-1, EMCU-1-xx) are not compatible with PRO4X.Environmental Monitoring Sensors DX2-T1, DX2-T1H1, DX2-T2H2, DX2-T3H1, DX2-AF1, DX2-T1DP1, DX2-PS Water Detection Sensors DX2-WSF-35-KIT, DX2-WSF-70-KIT, DX2-WSF-100-KIT, DX2-WSC-35-KIT, DX2-WSC-70-KIT, DX2-WSC-100-KIT Physical Access & Security Sensors DX2-PIR, DX2-VBR, DX2-D2, DX2-D2C6, DX2-PD2, DX2-PD2C5, DX2-CC2 Sensor Hubs & Accessories DX2-ENVHUB4 -
Q: How do I connect a Serial Console Server to the PRO4X?
A: A Serial Console Server, such as the Raritan SX2, can be connected to one of the PRO4X's USB-A ports using a CAT5 cable and a DSER-PWR-USB-G4 USB dongle. For example, set up as Serial Console Server (such as the SX2) <-> CAT5 cable <-> DSER-PWR-USB-G4 <-> PRO4X PDU USB-A.
NOTE: The PRO4X's USB-A ports can be used for connecting other peripheral devices. Please be aware of this before planning your Serial Console Server connection strategy and configuration. -
Q: How do I connect a Raritan KX3 KVM Switch to the PRO4X?
A: A Raritan KX3 KVM Switch can be connected to one of the PRO4X's USB-A ports using a CAT5 cable and a DKX3-PWR-USB-G4 USB dongle. For example, set up as KX3 <-> CAT5 cable <-> DKX3-PWR-USB-G4 <-> PRO4X PDU USB-A.
NOTE: The PRO4X's USB-A ports can be used for connecting other peripheral devices. Please be aware of this before planning your KVM Switch connection strategy and configuration. -
Q: How do I connect to a CLI using the PRO4X?
A:- To connect through a Raritan KX3 KVM Switch and Raritan DSAM Serial Access Module module: This requires a DSER-CLI-USB-G4 dongle and a CAT5 cable. For example, set up as KX3 <-> DSAM <-> CAT5 <-> DSER-CLI-USB-G4 <-> PRO4X PDU USB-A.
- To connect through a PC using a USB port: This requires a DSER-CLI-USB-G4 dongle, a USB-to-Serial adapter, and a Cisco cable. For example, set up as PC <-> USB-to-serial adapter <-> Cisco cable <-> DSER-CLI-USB-G4 <-> PRO4X PDU USB-A.
- To connect through a PC with a Serial port: This requires a DSER-CLI-USB-G4 dongle and a Cisco cable. For example, set up as PC serial port <-> Cisco cable <-> DSER-CLI-USB-G4 <-> PRO4X PDU USB-A.
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Q: How do I access my serial device from the PRO4X?
A: A Raritan DSAM Serial Access Module (DSAM) can be connected directly to the PRO4X PDU's USB-A port, and the serial device would then connect directly to an available RJ45 port on the DSAM module. NOTE: This functionality requires Xerus Firmware 4.0.20 or later.
NOTE: The PRO4X4's USB-A ports can be used for connecting other peripheral devices. Please be aware of this before planning your DSAM connection strategy and configuration. -
Q: Does Server Technology have an IPv6 Ready Certification?
A: Yes. Server Technology's accreditations in IPv6 interoperability help assure users that our rack power product's operating environment is ready for deployment in IPv6 commercial and government environments. Our products are certified by the IPv6 Ready Logo Program, a conformance and interoperability testing program from the IPv6 Forum that demonstrates a product is ready to be used in an IPv6 infrastructure. You can validate our IPv6 Ready Gold Logo certification on the IPv6 Ready Registry by searching for "Legrand" in the Vendor Name field on the page. -
Q: Does Server Technology meet USGv6 requirements and capabilities?
A: Yes. Server Technology's rack power products meet the USGv6-r1 requirements and capabilities for Core, SLAAC, Address Architecture, and IPv6-Only. USGv6 is a testing program governed by the US Department of Commerce's National Institute of Standards and Technology (NIST) that executes a technical standards profile for the US Government and related agency acquisition of IPv6-enabled networked information technology and devices. This qualification ensures that our rack power products are IPv6 compliant and can support future Internet traffic demands. You can validate our registration on the USGv6 Product Registry by searching for “Legrand" in the Company field on the page.
General FAQs
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Q: What are the differences between Server Technology PDU families?
A: See the family feature comparison chart. -
Q: What is the operating temperature rating?
A: The PRO4X has been tested and approved for safe and reliable operation from 0°C to 60°C (32°F to 140°F) environments. -
Q: Does the PRO4X have a Universal Input option?
A: Yes. The PRO4X's Universal Input is a one-size-fits-all universal PDU infeed that accommodates single-phase and three-phase Legrand Universal Input Cord options for the same PDU. This unique Rack PDU solution allows you to purchase a single PRO4X PDU and, as needed, swap the input cord into the PDU's keyed universal input connector to match the power infeed requirements. This feature option can be ordered with most PRO4X PDU models; some restrictions apply. -
Q: What Universal Input Cord options are available?
A: Legrand Universal Input Cords are field-detachable and available in single-phase 200V-240V 30-63A, three-phase 208V 30-60A, and three-phase 415V 30-32A. The cord includes a PDU-side universal connector and an appropriately rated receptacle plug. Legrand Universal Input Cord DTCORD part numbers are only compatible with a Legrand Universal Input and sold separately from the PDU. Additional cords can be ordered at any time. Hot-plugging or hot-swapping is not approved for this system. The universal input cord must be attached to the PDU while not powered.
For Technical Support Solution Information:
Please take a look at our Technical References.