Description

The PM100 modules are designed to extract power from a conventional twisted pair Category 5 Ethernet cable, conforming to the IEEE 802.3af Power-over- Ethernet (PoE) standard.

IEEE 802.3af allows for two power options for Category 5 cables and the PM100 series have two pairs of power inputs pins: - VA1&2 and VB1&2 to accommodate this, see Figure 1. The PM100 provides the PoE compatibility detection and power classification required by the Power Sourcing Equipment (PSE) before applying up to 15.4W power to the port. The PM100 modules are compatible with Class 0 to Class 3 equipment.

The high efficiency DC/DC converter operates over a wide input voltage range and provides a non-isolated regulated low ripple and low noise output. The DC/DC converter also has built-in output overload, output short-circuit and over-temperature protection.

The PM100 series have two pairs of power inputs pins: VA1&2 and VB1&2, to accommodate IEEE 802.3af allowing for two power options with Category 5 cables as the following figure. The PM100 modules provides the PoE compatibility detection and power classification required by the Power Sourcing Equipment and up to 12.95W power to the Powered Device (PD).

With non-isolated regulation, PM100 provides low ripple and low noise output. In addition, PM100 implements protections for output overload, output short-circuit, and thermal shut-down. The modules also provide two pins; CR1&2 for external resisters connection to select for PoE Class 0 to Class 3 equipments. The high efficiency DC/DC converter operates over a wide input voltage range from 36V to 60V.