Winsonic NE11005-20442A 4-Port Gigabit PoE + 2 SFP Ring Managed Switch

A compact PoE ring node for remote cabinets

The NE11005-20442A is the smallest managed PoE switch in the Winsonic industrial switch list: four 10/100/1000 Mbps RJ45 ports, all four powered, plus two 1000 Mbps SFP slots and a console port. Each PoE port supplies up to 30 W within a 60 W total budget, which suits two or three cameras or access points at a lamp-post, kiosk or small pump station cabinet.

At 110 x 90 x 46 mm it is far smaller than the 145 x 109 x 62 mm twelve-port models, so it fits in shallow enclosures. The datasheet title line reads 4-Port Gigabit + 2G SFP Industrial Fast Ring Managed PoE Switch.

Many remote sites need only a handful of powered devices and a fibre pair. This switch fits that case: four PoE ports for cameras, wireless links or sensors, and two SFP slots so the fibre can enter and leave the same box in a ring. The 12 Gbps switching capacity and 8.93 Mpps forwarding rate are matched to the port count, so the unit does not block traffic at line rate.

Technical specifications

Managed functions in a small housing

Despite its size the unit carries the full managed feature list printed in the datasheet:

Power budgeting and where to use it

With a total of 60 W, plan around the load, not the per-port maximum: one 30 W device plus a 15 W camera and a 12 W access point fits, four 30 W devices do not. The 48 to 57 V DC input is required; a 12 to 55 V supply is only specified on the non-PoE models such as NE11006-20432A.

Use the two SFP slots either as a ring in and out pair or as one uplink and one downlink toward the next cabinet. Look at the larger NE11001-30844A when you need more ports or 10G uplinks. The PoE LED helps confirm that a powered device has been detected on site.

When designing the power plan, remember that the 48 to 57 V DC input is also the PoE source voltage, so the supply must be sized for the switch itself plus the full PoE load. A 60 W PoE budget needs a supply with comfortable headroom above that. The PoE pins follow Mode A, with pins 1 and 2 negative and 3 and 6 positive, so powered devices that accept standard IEEE 802.3af or 802.3at power will operate without adapters. The datasheet lists a PoE indicator on the front panel for quick diagnosis.

Layer 2 features are those of the wider managed family: VLAN with up to 4K IDs, QoS scheduling, ACLs, 802.1x port authentication and port mirroring. For small field cabinets the 110 x 90 x 46 mm footprint, fanless design and -40 to 75 degrees C range allow mounting close to the devices served. Keep non-condensing humidity limits in mind for coastal sites.

Documents and quotation

The manufacturer datasheet for NE11005-20442A is attached. Seven Star LLC supplies Winsonic equipment from Muscat; send the model code and quantity for a quotation. More products: Industrial Communications.

For the fibre side, Winsonic lists Gigabit SFP transceivers in its own range, and these are also available through us. Include the powered-device list with its rated wattage in the enquiry, because the 60 W budget is the limiting factor in this model. If the cabinet needs more than four powered ports, we can propose the eight-port PoE models from the same family.

Delivery format, packaging and lead time are confirmed in the written quotation. Please state how many NE11005-20442A units form each ring, so SFP module quantities can be matched to the two slots on every unit and spares can be proposed for the maintenance stock.