POC-LatchingRelay-C Latching relay that holds state without power compact USB module product photo
SensorsDigital I/O / relays / drive

Latching relay with unpowered state retention compact USB module

POC-LatchingRelay-C PW-YOC-044 LTCHRL2C
Latching relay with power-off state retention. Controls contacts, I/O, notifications, servos, and LEDs from a PC or embedded Linux via USB/API.
POC model
POC-LatchingRelay-C
Product ID
LTCHRL2C
Classification
Compact USB modules / actuators and output
Connection
USB / driverless

Product description

POC-LatchingRelay-C: Retains contact state even after power loss. For low-power applications and state retention during power outages. Usable as a driverless USB device from a PC, embedded Linux such as Raspberry Pi, or a network configuration via POC-Hub. Easy to integrate into prototype evaluation, inspection jigs, equipment monitoring, and data acquisition systems.

Specifications / software

Specifications
Latching relay. For applications that must hold contact state after power loss.
Software specifications
Control output state, I/O direction, pulses, notifications, servo position, LED patterns, and more from the dedicated API. Supports remote control via VirtualHub/POC-Hub.
Options
Options: case, terminal block, USB cable, POC-Hub, external power / load protection parts, and fuse / safety design.
Comparison with similar products
Relays: latching hold. For normal on/off control, use PowerRelay/MaxiPowerRelay.
Applications and selection points
Retains contact state after power loss. For low-power and power-outage retention applications.

Network collection via the dedicated API / virtual hub / POC-Hub is also supported. For setup steps and how to choose a connection mode, see the Development guide.

Distribution

This product is a driverless USB measurement module distributed by Positive ONE. We provide supply, technical support, and contract development in Japan. It runs on Windows / Linux (Intel, ARM) / macOS / Android, and can also be used with embedded Linux such as Raspberry Pi or in network configurations via POC-Hub.