Brodersen UCM-82.924 Industrial PSTN Modem 12-48VDC RS232 with Siemens S7 TS Adapter Used

Overview
Brodersen UCM‑82.924 industrial PSTN dial modem for remote telemetry and PLC access, complete with attached RS232 cable and Siemens SIMATIC S7 TS Adapter V5.1 (6ES7 972‑0CA33‑0XA0) for connection to S7‑300/400 systems. Both devices are used, in good working condition, removed from a functioning installation.

Item details – Brodersen modem

• Brand: Brodersen Control

• Model: UCM‑82.924 (UCM‑82 series PSTN modem)

• Type: Industrial PSTN dial‑up modem for public switched telephone networks (PSTN)

• Line rates: Up to 56 kbps (V.90) and 14.4 kbps (V.32bis) depending on line quality and configuration.

• Interface: RS232C/V.24 serial port (9‑pin Sub‑D, female) with full hardware handshake signals (DCD, DTR, DSR, RTS, CTS, RI).

• Supply voltage: Wide range 12–48 VDC, reverse polarity protected; isolated power supply and line interface for industrial environments.

• Indicators: Front LEDs for DTR, DCD, RXD, TXD and Power.

• Application: Designed for integration with Brodersen RTUs and third‑party PLCs/SCADA systems over telephone networks.

Item details – Siemens TS Adapter

• Brand: Siemens

• Series: SIMATIC S7 TeleService

• Model: TS Adapter V5.1, order no. 6ES7 972‑0CA33‑0XA0 (printed on housing).

• Interface: RS232 on the modem/PC side; RS485/TTY interface for S7‑300/400, M7 and C7 PLCs on the other side.

• Function: Converts between serial PC/modem connection and S7 programming interface, enabling remote TeleService and diagnostics when used with an external modem.

• Baud rates: RS232 selectable 19.2 or 38.4 kbit/s via internal switch.

Condition

• Used, previously installed pair; both units were marked “tested” and were operational before removal (no further in‑house testing performed).

• Cosmetically, the housings show dust, scuffs and label residue from cabinet use but no cracks or major damage; connectors and cable strain reliefs are intact.

• No manuals, configuration software, mounting hardware or separate power supply included; sale is for the Brodersen UCM‑82.924 modem with attached RS232 lead and the Siemens TS Adapter V5.1 only.

Notes

• The UCM‑82 requires a 12–48 VDC power source and PSTN line; configuration is via AT commands over RS232 using a terminal program or RTU/PLC tools.

• The TS Adapter must be used with SIMATIC TeleService option software for full functionality; wiring and DIP‑switch settings should follow Siemens documentation.

• Ideal as a replacement TeleService setup for legacy S7‑300/400 installations where dial‑up remote access is still in use.