Westermo TD-32 B DC Industrial Leased Line Modem | 3178-1090 V24/RS-232

Ensure ultra-reliable, long-distance data transmission in harsh environments with the Westermo TD-32 B DC Industrial Modem (Art. No. 3178-1090). Engineered for industrial and utility automation applications, this heavy-duty modem is designed to establish robust serial data links over 2-wire or 4-wire leased lines as well as PSTN dial-up telephone networks. It acts as an essential communication bridge for legacy PLC hardware, SCADA platforms, and remote terminal units (RTUs).

The unit is built into a compact, durable DIN-rail mount housing designed to conserve cabinet space. It features a prominent front-facing V24/RS232-C 25-pin connection interface alongside an accessible TEL. LINE connection and dedicated terminal blocks for LEASED LINE (TX/RX) wiring configurations. The top and bottom screw terminal fields support easy point-to-point interfacing, including standard lines for data flow control (RI, TD, RD, RTS, CTS, DCD, DTR, DSR, SG). For rapid on-site troubleshooting, the module includes clear diagnostic LEDs for PWR (Power), LINE, ANS (Answer), and REL (Reliable/Link status). Powered via a dedicated DC terminal strip, this industrial unit guarantees continuous data serialization and immunity against electromagnetic interference.

Product Details

• Brand: Westermo

• Model: TD-32 B DC

• Article Number: 3178-1090 (EU Variant)

• Interface Type: V24 / RS232-C (Standard 25-Pin D-Sub Female)

• Network Capability: Leased Line (2-Wire / 4-Wire TX & RX), Public Switched Telephone Line (TEL. LINE)

• Mounting Type: Integrated DIN-Rail clip system

• Diagnostics Indicators: LED array for Power, Line, Answer, and Link Status

• Input Power: DC Power Input Interface (+ / – terminals)