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RAK19018 WisBlock PoE Module for RAK13800 Datasheet

Overview​

Description​

The RAK19018 is a Power-over-Ethernet module used together with the RAK13800 Ethernet Interface module to draw power from CAT5/CAT6 cables. This PoE module is based on the Silvertel Ag9905MT converter board and compatible with the IEEE 802.3af PoE standard.

The Ag9905MT's signature and control circuit provide the PoE compatibility requirement by the Power Sourcing Equipment (PSE) before applying up to 9 Watts of power to the port. This provides a Class 0 signature.

The DC/DC converter operates over a wide input voltage from 36 V to 57 V and provides a regulated 5 V output with built-in short-circuit output protection.

Features​

  • Based on Silvertel Ag9905MT
  • Requires RAK13800 Ethernet Module to work
  • Power-over-Ethernet Module
  • IEEE802.3af compliant
  • Input voltage range : 36 V to 57 V
  • Output voltage : 5 V
  • Output power: 9 W
  • Short-circuit protection and Over temperature protection
  • Size: 32 mm x 25 mm

Specifications​

Overview​

Board Overview​

Figure 4571: RAK19018 WisBlock PoE Module top (left) and bottom (right) view
Figure 4572: Ag9905MT PoE converter board

Mounting​

The RAK19018 module is mounted on top of WisBlock Ethernet module RAK13800. These modules are attached via compatible header pins.

Figure 4573: RAK19018 connection to RAK13800

Hardware​

The hardware specification is categorized into five (5) parts. It shows the chipset, pinouts, and diagram of the module. It also presents the electrical and mechanical characteristics of the RAK19018 WisBlock PoE Module.

Chipset​

VendorPart number
SilvertelAg9905MT

Pin Definition​

The RAK19018 PoE Module has two connectors for 5 V output - J3 and J6. The PoE input voltage is fed via J5.

Figure 4574: RAK19018 WisBlock Module pinout

Electrical Characteristics​

This section shows the maximum and minimum ratings of the RAK19018 module and its recommended operating conditions.

Recommended Operating Conditions​
ParameterMin.Nom.Max.Unit
Input Supply Voltage364857V
Under Voltage Lockout3036V
Nominal Output Voltage4.755.05.25V
Minimum Load200mA
Output Current (VIN = 48V)1.8A

Mechanical Characteristics​

Board Dimensions​

The mechanical dimension of RAK19018 is shown in Figure 5.

Figure 4575: RAK19018 Mechanical Dimensions

Schematic Diagram​

Figure 6 shows the schematic of the RAK19018 PoE module.

Figure 4576: PoE Module

Using a cable, RAK19018 can power WisBlock Base boards like RAK5005-0.

  • J3 is a connector for 5 V output.
  • J5 and J6 are used for connecting to RAK13800.
Figure 4577: Connectors