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PoE Systems from Microsemi


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PowerDsine 3500 Family Features


Introduction |Features |Specification |Data Sheet [pdf]



PD 3500 Simplicity – The 3500 Midspan (PoE injector) is a plug-and-play product - once turned on, it initiates a negotiation process with all connected data terminals, then powers all valid powered devices detected. For the greatest possible ease of use, no reconfiguration of the switch is ever required.

Scalability & Flexibility – The 3500 Series supports large installations using multiple 24-port units, in places where multiuser IP telephony systems are installed. 12 port model optimally suit smaller installations where WLAN access points and security cameras are involved. The Midspan optimizes PoE port count since an existing switch can be used along with a Midspan that supports only the exact number of required PoE ports.

Compatibility - The 3500 series enables interoperability with any 10/100 Mbit Ethernet switch and with virtually any type of powered device.

Standards Compliance – All 3500 series Midspans comply with the IEEE 802.3af standard, enabling full interoperability with common powered devices and ensuring the safety of non-PoE terminals such as desktop/laptop computers, even in the face of faulty power provision that could have resulted in electric damage.

Legacy Powered Device Support – 3500 series Midspans may be used to power pre-standard PoE applications, such as Cisco legacy terminals and others.

Future-Proof Investment – Midspan deployment effectively extends the effective lifespan of your network equipment. 3500 series Midspans may be fully integrated with existing networks, saving the need to swap out non- PoE switches for ones with PoE capabilities.

Minimal Network Downtime – Midspan installation is designed to ensure that organizational productivity remains as high as possible, typically involving network downtime of no more than a few hours.

Centralized Power Distribution – The Midspan, backed by a central UPS (Uninterrupted Power Supply), provides costeffective distribution of backed-up power and ensures uninterrupted network operation, even in cases of electrical power outages.

Cost Savings – Deploying 3500 series Midspans is far less costly than upgrading to a PoE switch, or buying a brand new one. Midspan installation is considerably easier than switch installation, driving costs lower.



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