SAGEMCOM 252721117AC – OEM AC/DC Power Adapter for Gateways, CPE, and Set‑Top Boxes

The SAGEMCOM-252721117AC is an original OEM power adapter designed to reliably power Sagemcom residential gateways, ONTs/CPE, and set‑top boxes. From my experience, these adapters are built for 24/7 operation and typically deliver a stable DC output suited to Sagemcom F@st series devices. If you’re replacing a tired supply or standardizing spares for field teams, this unit is a safe, low‑risk choice that keeps customer equipment online.

Company’s Order Placement Process and Guarantees

• Warranty: 365 days
• Delivery time: 1 week for in‑stock; no more than one month at the latest
• Payment: 50% advance payment; full payment before delivery
• Express delivery: FedEx, UPS, DHL

Key Features

• OEM-grade reliability – Built for continuous service on Sagemcom CPE; fewer dropouts and nuisance resets.
• Universal AC input – Typically supports 100–240 VAC, 50/60 Hz for global deployments and spares pooling.
• Stable DC output – Consistent voltage and low ripple, which in many cases reduces modem sync issues.
• Integrated protections – Over‑voltage, over‑current, and short‑circuit protection to safeguard connected devices.
• Service-friendly form factor – External adapter simplifies field swaps without opening the enclosure.
• Connector compatibility – Commonly supplied with a standard DC barrel (often 5.5/2.1 mm, center positive); verify your device label to match.

Technical Specifications

Note: Specs above reflect the typical characteristics of Sagemcom OEM CPE adapters. Please confirm the exact voltage/current printed on your device or the adapter label before ordering.

Application Fields

This model is widely used in telecom and ISP environments for powering Sagemcom gateways, ONTs, and set‑top boxes—both residential and SMB deployments. You might notice that it also fits nicely into lab benches and NOC spares kits for quick swap‑outs during troubleshooting. In MDU/FTTH cabinets, teams typically keep a few on hand to recover units that brown‑out due to aging supplies.

Advantages & Value

• Reliability – OEM adapter matched to Sagemcom load profiles; reduces intermittent reboots.
• Compatibility – Correct connector polarity and voltage for Sagemcom CPE (verify label to avoid mismatches).
• Operational savings – Quick field replacement limits truck‑roll time and improves first‑visit fix rates.
• Procurement ease – Stable sourcing with standard lead times; good for stocking frameworks.
• Technical backing – We can help validate connector size and output before you commit to volume.

One thing I appreciate is how swapping to a fresh 252721117AC often clears up “random DSL/GPON drops.” A regional ISP told us they cut repeat tickets by half after standardizing on new adapters during site visits.

Installation & Maintenance

• Environment – Use in dry, ventilated areas; avoid covering the adapter. For cabinets, ensure airflow and keep away from heat sources.
• Wiring – Confirm DC plug size and polarity (typically center positive). Route cables with strain relief; avoid tight bends.
• Safety – Disconnect mains before servicing. Do not use if the case is cracked or the cable is damaged.
• Routine checks – Inspect for warmth, discoloration, or hum. If devices exhibit reboots under load, verify output with a multimeter.
• Lifecycle – Replace aging adapters proactively in high‑uptime sites; capacitors can drift after years of service.

Quality & Certifications

• Compliance – Typically CE and RoHS for EU markets; UL/cUL for North America (varies by regional plug).
• Manufacturing – Produced under ISO 9001 quality systems.
• Warranty – 365‑day warranty coverage.

Need help confirming exact output voltage/current or DC plug size for your fleet? Share a photo of your device rating label or the existing adapter marking and we’ll validate compatibility before you order.