General
Output voltage	24 VDC
MTBF	5.104.703 Stunden

The SPL-24 from Moxa is a PoE splitter that separates power and data, transmitted over a single Ethernet cable, into separate channels. This enables the connection of end devices that do not have PoE functionality to PoE-capable networks. The series is IEEE 802.3af-compliant and delivers a maximum output power of 12.95 W at a voltage of 24 VDC. The devices are designed for industrial use, evident from a robust housing and an operating temperature range that varies by model from 0 to 60 °C (SPL-24) or from -40 to 75 °C (SPL-24-T). Mounting is done via DIN rail, ensuring easy integration into enclosure environments.

Applications

The SPL-24 is suitable for industrial networking applications where PoE end devices are not available, but power supply over the network cable is desired. Examples include powering IP cameras, sensors, or other devices connected via network cable but lacking integrated PoE functionality. The robust design and wide temperature range also make the device suitable for locations exposed to high mechanical or thermal stress, such as in production facilities, transportation, or manufacturing.

Functions and Equipment in Detail

The splitter features a 10/100BaseT(X) data port (RJ45) and a PoE-PD port (RJ45), enabling separate handling of data transmission and power supply. The interface supports Auto MDI/MDI-X and Auto-Negotiation, so the connection is automatically configured correctly. Power supply is via PoE in the range of 44 to 75 VDC, with output provided through a removable 3-pole terminal block. An integrated overcurrent protection safeguards the device and connected components from damage due to excessive current draw.

Technology Explained Simply

The function of the PoE splitter is based on separating data and power signals transmitted over an Ethernet cable. While the data signal is routed through the RJ45 data port, the power signal is branched off via the PoE-PD port and delivered as DC voltage (24 VDC) through the terminal block. The IEEE 802.3af standard ensures that power supply is safe and standardized. The maximum output power of 12.95 W at 24 VDC corresponds to a current of approximately 540 mA, sufficient to power many small industrial devices. The operating temperature range of -40 to 75 °C (for T models) allows use in extreme environments, such as outdoor areas or machine rooms with high heat generation.

Compatibility and Accessories

The SPL-24 is compatible with all devices powered via Ethernet cable with power and data, and supporting the IEEE 802.3af standard. Data transmission occurs in the 10/100BaseT(X) standard, enabling speeds up to 100 Mbit/s. The devices are designed for use in enclosures and can be mounted directly on DIN rail.

Mounting and Installation

Mounting is done via DIN rail, enabling quick and secure installation in standard enclosures. Dimensions of 24.9 x 100 x 86.2 mm and a weight of 95 g make the device compact and lightweight. Power supply is via the network cable, eliminating the need for additional power sources. Connections are made via a removable 3-pole terminal block, allowing flexible cabling.

Operational Advantages

The SPL-24 provides reliable power supply for non-PoE devices over existing network infrastructures. Integrated safety features, including overcurrent protection, and compliance with international standards such as IEEE 802.3af and UL 60950-1, ensure safe operation. The high MTBF of 5,104,703 hours according to MIL-HDBK-217F demonstrates the device's high reliability. The 5-year warranty underscores the product's quality and durability.