The Urmet 1131 (specifically the 1131/21 variant) is a robust, high-resolution color dome camera designed for indoor security surveillance. Known for its discreet design and reliable imaging, it is a staple in both residential and commercial CCTV installations. This manual covers the technical specifications, installation procedures, configuration settings, and troubleshooting tips.
8. Safety & compliance
Follow local electrical codes and low-voltage wiring standards.
Disconnect power before making wiring changes.
Use only compatible Urmet-certified power supplies and modules to avoid damage.
4. Physical Connections (Typical)
| Terminal | Signal |
|----------|--------|
| L1 / L2 | 2-wire BUS (to Urmet riser / power supply) |
| TEL LINE | Incoming PSTN line (from Telecom socket) |
| TEL SET | Optional parallel telephone |
| NO / C / NC | Relay 1 (e.g., electric lock) |
| NO2 / C2 / NC2 | Relay 2 (e.g., auxiliary) |
| +12V / GND | Optional external power (if not powered via BUS) | urmet 1131 manual full
Programming (Short version)
Enter installer mode (Usually 0000 or 1234 on keypad, or jumper on PCB).
To assign a call button to a monitor: Press button on external panel $\rightarrow$ Monitor rings $\rightarrow$ Press "Answer" then "Save".
To set unlock time: Default is 2 seconds. Adjust via parameter P21 (Range 1-30s).
Automatic White Balance (AWB): The camera automatically adjusts color temperature to ensure white objects appear white under different lighting conditions (e.g., indoor tungsten lights vs. daylight).
Automatic Gain Control (AGC): The camera boosts the video signal in low-light environments to maintain visibility, though this may introduce slight graininess.
Backlight Compensation (BLC): If your subject appears silhouetted against a bright background, the BLC function (often automatic on this model) adjusts exposure to reveal detail in the foreground.
There are typically no manual DIP switches on the standard 1131 model; configuration is handled internally by the DSP (Digital Signal Processor).8. Safety & compliance