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September 08, 2026 4 min read
Complete user's guide for the Web Mountain Technologies RUC-01 Remote Universal Controller, a network appliance for bridging Ethernet control to UPB, X10, Insteon, and Z-Wave home automation networks.
User's Guide for the Web Mountain Technologies Remote Universal Controller (RUC), model RUC-01 — a network appliance for controlling a home automation network (UPB, X10, Insteon, Z-Wave, ESI drapery systems) over Ethernet, either locally or remotely over the Internet.
The RUC acts as a bridge between Ethernet/IP networking and home automation protocols. Commands sent over the Internet or a local network are converted to serial commands and sent to an externally connected interface module — for example, a WMT SPIM-01 UPB powerline interface module — for transmission onto the local powerline. A second serial port allows conversion between other home automation protocols such as Z-Wave, Insteon, or the ESI drapery control system.
The webserver includes these configuration pages, accessible from a button menu on every page: Home, Networking Config, Device Config, Admin, UPB Transmission, Dynamic DNS, Receive, Triggers, Control Panel, and Backup/Restore.
http://wmtruc using username wmtruc and password password (may take up to 5 minutes for the network to recognize the hostname).| Spec | Value |
|---|---|
| Input | 100 VAC to 240 VAC |
| Output | 5 VDC, 1A |
| Output connector | 2.1 x 5.5mm |
Important: Use only the provided power supply. If a substitute is used, the output voltage must not exceed 5.5 VDC or the unit may be damaged — such damage is not covered under warranty.
The RUC supports 10 Base-T and 100 Base-T Ethernet over CAT5 or better cable. If no DHCP server is present, the RUC defaults to a fixed IP of 192.168.1.241 after a few seconds. If your network uses a different address space, connect the RUC directly to a PC via crossover cable set to the 192.168.1.x range first, change the RUC's IP address, then reconnect it to your network.
If you can't reach the RUC via http://wmtruc, check the serial number label on the back of the unit (a 6-digit alphanumeric string — the last 3 octets of the RUC's MAC address) and use the Ethernet Discoverer application (available from Web Mountain's website) to find its IP address.
| Button / Action | Result |
|---|---|
| S1 — press and hold until LED stops flashing, then release | Reboot |
| S2 — hold 3 seconds | Reset to factory default IP settings (DHCP mode) |
| S2 — hold 6 seconds | Full factory default reset |
| Press S1 + S2 together, release S1 (LEDs flash 3x, pause, flash 6x) | Complete factory default reset |
| Press S1 + S2 together, release S1 (LEDs flash 3x only, then release S2) | Reset to factory default IP settings only |
| Alternative: remove power, hold S2, reapply power, wait for 6 flashes | Full factory reset |
The RUC's Triggers page supports conversion between many home automation event sources and outputs, including: ESI RQ/RP (drapery control), Schedule, UPB Direct, UPB Link, Z-Wave, X10, Insteon (future), and physical Buttons — converting any of these into email notifications, or into commands for another one of these protocols (e.g., X10 → UPB Link, Z-Wave → ESI RQ, Button → Insteon). This allows the RUC to act as a universal automation protocol bridge and notification gateway.
The RUC's two DB9 serial ports (COM1 & COM2) are DTE (Data Terminal Equipment) interfaces — the same type used on PC serial ports — providing a positive voltage on pin 4. UPB serial PIMs (such as the WMT SPIM-01) and most automation interface devices use a DCE (Data Communications Equipment) interface. Connecting a DTE device to a DCE device requires a straight-through cable (not a null-modem/crossover cable) so that DTE Transmit connects to DCE Receive and vice versa. Pins 1 and 6–9 on the DB9 connector are not used.
The Web Mountain RUC unit is warranted for 1 year from date of purchase. For support, contact Web Mountain at info@webmtn.com or 303-627-1856. If the unit is determined to be defective within the warranty period, obtain an RMA (Returned Material Authorization) number from Web Mountain before returning it — units returned without an RMA number may be returned to sender at Web Mountain's discretion.
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