Lantronix ACC-500-171-R DB25M to RS485 Screw Terminal Adapter
Overview
The ACC-500-171-R is a Lantronix-manufactured adapter that converts a DB25M connector to an RS485 screw terminal interface, accepting 9–30 VDC input. It bridges legacy DB25M serial ports to RS485 wiring runs — the kind of conversion needed when integrating Lantronix serial device servers or out-of-band management units into RS485-based control networks without re-terminating existing cabling. If your deployment connects Lantronix serial-to-Ethernet or OOB hardware to RS485 field buses, sensors, or PTZ camera control loops, the ACC-500-171-R handles the physical layer mismatch at the connector level.
Compatibility
Designed for use with Lantronix serial device servers and network infrastructure accessories that expose a DB25M serial port. Applicable product families include the Lantronix UDS and SDS serial-to-Ethernet device server lines, as well as OOB management accessories with DB25M serial interfaces. Verify your specific unit's port pinout against the RS485 wiring plan before installation — RS485 differential pair assignment varies by device.
Installation Notes
Input voltage range is 9–30 VDC — confirm your supply rail falls within this window before wiring. The screw terminal block accepts field-terminated RS485 wire; use appropriately gauged, twisted-pair cable to maintain signal integrity over RS485 runs. Observe correct polarity on the differential pair (A/B lines). No special tooling is specified beyond a standard small flat-head screwdriver for terminal block fasteners.
