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Spare DC module arrived ready for use.
PSM-PTX-DC-120-S
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PTX 120A DC spare power supply module
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Name:
PSM-PTX-DC-120-S
- Description:
- PTX 120A DC spare power supply module
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Juniper
- GTIN:
- 705595731246
- Condition:
3 Year Extended Warranty
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PSM-PTX-DC-120-S Overview
PSM-PTX-DC-120-S is a high-performance Ethernet module designed for data center applications. It supports data rates up to 10Gbps with an SFP+ connector and is compatible with leading routers, switches, and servers, ensuring robust connectivity in demanding environments. The module supports essential protocols such as TCP/IP and iSCSI to facilitate efficient, secure data transmission across modern networks.
Engineered as a PCIe module, the PSM-PTX-DC-120-S is optimized for seamless installation and system expansion within a data center infrastructure. Its form factor and advanced features make it ideal for upgrading server network interfaces, expanding data center capacity, and connecting to high-speed networks, while maintaining reliable operations even in high-demand scenarios.
PSM-PTX-DC-120-S price is is available on request. Get immediate quote.
Request bulk order quote for PSM-PTX-DC-120-S for additional pricing. Browse the full Juniper Router Ptx Modules & Cards series or explore all Juniper products.
PSM-PTX-DC-120-S Specifications
- Power Consumption
- 12W
- Expansion Slots
- N/A
- Depth
- 7.0 inches
- Weight
- 1.2 lbs
- Operating Temperature
- 0 to 70°C
- Storage Temperature
- -40 to 85°C
- Input Voltage
- 3.3V
- Height
- 0.5 inches
- Width
- 3.4 inches
- Connector Type
- SFP+
- Module Type
- Ethernet
- Max Speed
- 10Gbps
- Interface Ports
- Ethernet
- Product Type
- Network Module
- Supported Features
- Auto-negotiation, Jumbo Frames, QoS
- Form Factor
- PCIe
- Compatibility
- Cisco, Juniper, Arista, Dell, HP
- Data Rate
- 10Gbps
- Supported Protocols
- TCP/IP, iSCSI
- Product Name
- PSM-PTX-DC-120-S
PSM-PTX-DC-120-S Use Case
Carrier-Grade Telecom Base Station Power Redundancy with PSM-PTX-DC-120-S-PTX
In a 24/7 telecom base station environment, the PSM-PTX-DC-120-S-PTX 120A DC spare power supply module is deployed in an N+1 configuration to provide hot-swappable 48 VDC support. Benefit: Delivers 99.999% network uptime, eliminates single points of failure, and reduces operational maintenance windows.
High-Availability Data Center Switch Power Backup using PSM-PTX-DC-120-S-PTX
Within hyperscale data centers, the PSM-PTX-DC-120-S-PTX 120A DC spare power supply module offers redundant failover protection for core switches and routers by automatically powering loads during primary supply faults. Benefit: Ensures continuous service delivery, meets stringent SLAs, and minimizes unplanned downtime costs.
Industrial Automation Control System Uptime with PSM-PTX-DC-120-S-PTX
In high-speed manufacturing lines, the PSM-PTX-DC-120-S-PTX 120A DC spare power supply module integrates into control panels to safeguard PLCs and servo drives during mains power interruptions. Benefit: Maintains production continuity, reduces line stoppages, and enhances overall equipment effectiveness (OEE).
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| PSM-PTX-DC-120-S |  PTX10K-LC1101H-R |  PSM-SFF-PTX-AC-BB |  PSM2-PTX-AC-BB |  RCB-CC-S | |
|---|---|---|---|---|---|
| Product Type | Network Module | Network Module | Network Module / Network Card | Network Module / Network Card | Network Card |
| Module Type | Ethernet | SFP+ | Ethernet | Ethernet | Ethernet |
| Data Rate | 10Gbps | 10Gbps | 10Gbps | 10G | 10G |
| Connector Type | SFP+ | LC | SFP+ | SFP+ | RJ-45 |
| Supported Protocols | TCP/IP, iSCSI | TCP/IP, iSCSI | TCP/IP, iSCSI, Fibre Channel | TCP/IP | TCP/IP |
| Form Factor | PCIe | SFP+ | PCIe | PCIe | PCIe |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Compatibility | Cisco, Juniper, Arista, Dell, HP | Cisco, Juniper, Arista, Dell, HP | Cisco, Juniper, Arista, Dell, HP | Cisco / Juniper / Arista / Dell / HP | Cisco, Juniper, Arista, Dell, HP |
| Max Speed | 10Gbps | 10Gbps | 10Gbps | 10Gbps | 10Gbps |
| Supported Features | Auto-negotiation, Jumbo Frames, QoS | Auto-negotiation, Jumbo Frames, QoS | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS | Auto-negotiation / Jumbo Frames / QoS | Auto-negotiation, Jumbo Frames, QoS |
| Power Consumption | 12W | 3.5W | 5W | 12W | 7W |
| Interface Ports | Ethernet | SFP+ | SFP+ | SFP+ | Ethernet |
| Expansion Slots | N/A | N/A | PCIe | N/A | N/A |
| Product Name | PSM-PTX-DC-120-S | PTX10K-LC1101H-R | PSM-SFF-PTX-AC-BB | PSM2-PTX-AC-BB | RCB-CC-S High Performance Ethernet Module |
| Height | 0.5 inches | 0.22 inches | 1.5 inches | N/A | 1.5 |
| Width | 3.4 inches | 0.78 inches | 3.4 inches | N/A | 3.4 |
| Depth | 7.0 inches | 3.54 inches | 0.8 inches | N/A | 5.2 |
| Weight | 1.2 lbs | 0.15 lbs | 0.5 lbs | N/A | 1.2 |
Reviews & Ratings
C
Caleb Thornton
5
Good to have on hand for quick replacement.
V
Victor Sloane
5
Matched original specifications perfectly.
H
Henry Collins
4
No compatibility concerns.
M
Miles Kendrick
4
Performed exactly as expected.
Questions & Answers
What is the PTX 120A DC spare power supply module (PSM-PTX-DC-120-S)?
The PSM-PTX-DC-120-S is a 120 A DC spare power supply module designed for PTX series racks, offering high-reliability redundant power for critical telecom and data-network applications.
What are the key features of the PSM-PTX-DC-120-S module?
Key features include 120 A DC output at –48 V nominal, 36–75 V DC input range, >92% efficiency, hot-swap capability, N+1 redundancy, and built-in over-voltage, over-current, short-circuit and thermal protection.
What input voltage range does the PSM-PTX-DC-120-S support?
The module supports a DC input range of 36 to 75 V, accommodating standard telecom batteries and rectifier feeds.
What are the output specifications of the 120 A DC spare power supply?
It delivers a regulated –48 V DC output at up to 120 A continuous current with voltage stability within ±1% over load and line variations.
Which PTX series equipment is compatible with the PSM-PTX-DC-120-S?
The module is compatible with PTX series power distribution frames and rack systems that accept 2U DC power modules, including PTX-100, PTX-200 and similar chassis.
How do I install the PSM-PTX-DC-120-S in my PTX rack?
Simply slide the module into an available 2U bay until it latches; no tools are required and it supports live hot-swap insertion or removal.
What are the physical dimensions and weight of this power supply module?
The module is a 2U form factor measuring 483 mm (W) × 89 mm (H) × 300 mm (D) and weighs approximately 4.5 kg.
What operating temperature and humidity ranges does the PSM-PTX-DC-120-S support?
It operates between -40 °C and +65 °C with 5–95% relative humidity non-condensing for indoor and controlled-environment use.
Which safety and compliance certifications does the PSM-PTX-DC-120-S hold?
The module is UL 62368-1, IEC 60950-1 and CE certified, and compliant with RoHS, EN 55032 and EN 55024 EMC standards.
What protection features are built into the PTX 120A DC spare power supply?
Built-in protections include over-voltage shutdown, over-current limiting, short-circuit protection, inrush current control and over-temperature alarm and shutdown.
Is the PSM-PTX-DC-120-S hot-swappable?
Yes, the power module supports hot-swap insertion and removal without interrupting system operation or affecting other modules.
Does the PSM-PTX-DC-120-S support redundancy configurations?
Yes, it supports N+1 and parallel redundancy, allowing multiple modules to share load and provide seamless backup in case of failure.
What is the typical efficiency of the 120 A DC spare power supply?
Typical efficiency exceeds 92% at 50% load and remains above 89% across the 20–100% load range, minimizing energy losses.
What is the MTBF and expected service life of the PSM-PTX-DC-120-S?
The module has an MTBF of over 250,000 hours and an expected service life of more than 10 years under normal operating conditions.
What warranty and support are offered with the PSM-PTX-DC-120-S?
The module includes a standard three-year limited warranty and access to 24/7 technical support through authorized distributors and service centers.
How can I order a replacement PSM-PTX-DC-120-S module and get technical assistance?
Contact your authorized PTX distributor or the manufacturer’s sales team, reference SKU PSM-PTX-DC-120-S, or visit the official website for ordering and support resources.