1. Introduction
The Decimator DMON-4S is a versatile Quad (3G/HD/SD)-SDI to HDMI Multiviewer and Converter designed for professional video applications. This device offers flexible configuration options, functioning as a Quad Split for SDI to HDMI conversion, a direct SDI to HDMI converter, or a 1 to 4 distribution amplifier. Its intuitive LCD and button control system allows for easy adjustment of settings without requiring a computer.

Figure 1 : Plusview of the Decimator DMON-4S unit.
2. Principales caractéristiques
- Superior Multiviewment: Monitor up to four 3G/HD/SD-SDI sources simultaneously on a single HDMI display.
- Prise en charge de formats polyvalents : Accepts a wide range of SDI input formats (3G/HD/SD) and outputs in various HDMI formats up to 1080p60.
- Easy Customization: Intuitive LCD and button menu for quick adjustments of output formats, quad-split layouts, aspect ratios, and borders.
- Robust Signal Processing: Features input equalization for reliable signal transmission over long cable runs (e.g., beyond 100M using Belden 1694A cable).
- Connectivité flexible : Equipped with four mini HDMI Type C outputs and optional SDI active loop outs for inputs 1 and/or 3.
3. Instructions de configuration
- Connexion électrique : Connect the provided power adapter to the +5V to +32V DC input on the side of the DMON-4S unit. Ensure the power source is stable.
- SDI Input Connection: Connect your 3G/HD/SD-SDI video sources to the SDI INPUT 1, 2, 3, and 4 ports. SDI INPUT 2 and 4 also offer active loop outputs for signal pass-through.
- HDMI Output Connection: Connect your HDMI displays to the HDMI OUTPUT 1, 2, 3, and 4 ports. Note that these are mini HDMI Type C outputs. You may need appropriate mini HDMI to standard HDMI cables or adapters (one mini HDMI to HDMI adapter is typically supplied).
- Connexion USB (en option) : For firmware updates or advanced configuration via a computer, connect a USB cable from the DMON-4S to your computer.

Figure 2: SDI Input and Power Connection Ports.

Figure 3: HDMI Output and USB Connection Ports.
4. Mode d'emploi
The DMON-4S features an LCD screen and four control buttons (Up, Down, Back, Enter) for navigation and configuration.
4.1. Navigation dans les menus
- Utilisez le Up et Vers le bas boutons pour faire défiler les options du menu.
- Appuyez sur le Entrer bouton permettant de sélectionner une option ou de confirmer un paramètre.
- Appuyez sur le Dos button to return to the previous menu or cancel an action.
4.2. Configuration Modes
The DMON-4S can be configured for various operational modes:
- Quad Split Multivieweuh: Display all four SDI inputs simultaneously on a single HDMI output. Navigate the menu to select 'Quad Split' mode and customize the layout, borders, and aspect ratios.
- Individual SDI to HDMI Conversion: Each SDI input can be converted to a dedicated HDMI output. Select the desired input and output pairing in the menu.
- 1 to 4 Distribution Amplifier : Distribute a single SDI input to multiple HDMI outputs.
- Modes mixtes : Combine different functionalities, such as three SDI to HDMI converters with one Quad-Split output, or two SDI to HDMI converters with loop-through.
4.3. Format Conversion
The device supports conversion between various video formats (e.g., 1080p to 1080i) without loss of video quality. Access the 'Output Format' settings in the menu to select the desired resolution and frame rate for each HDMI output.
5. Entretien
- Nettoyage: Use a soft, dry cloth to clean the exterior of the unit. Avoid liquid cleaners or solvents.
- Ventilation: Assurez-vous que l'appareil bénéficie d'une ventilation adéquate afin d'éviter toute surchauffe. Ne bloquez pas les ouvertures de ventilation.
- Stockage: Store the DMON-4S in a cool, dry environment when not in use.
- Gestion des câbles: Regularly inspect all connected cables for damage and ensure they are securely fastened.
6. Dépannage
- Aucune sortie vidéo :
- Verify the power adapter is correctly connected and the unit is powered on.
- Check all SDI input and HDMI output cable connections.
- Ensure the input and output video formats are compatible with your display and source. Adjust settings via the LCD menu if necessary.
- Confirm the correct operating mode (e.g., Quad Split, individual conversion) is selected.
- Incorrect Display/Aspect Ratio:
- Access the menu to adjust aspect ratio and scaling settings for the selected output mode.
- L'unité ne répond pas :
- Disconnect and reconnect the power supply to perform a soft reset.
7. Spécifications
| Fonctionnalité | Détail |
|---|---|
| Numéro de modèle | DMON-4S |
| Dimensions du produit | 8 x 6 x 6 pouces |
| Poids de l'article | 1.75 livres |
| Fabricant | Décimateur |
| Connecteurs d'entrée | 4x 3G/HD/SD-SDI (BNC) |
| Connecteurs de sortie | 4x Mini HDMI Type C, 2x SDI Active Loop Out (BNC) |
| Formats de sortie HDMI pris en charge | Jusqu'à 1080p60 |
| Puissance d'entrée | +5V à +32V CC |
| Ports supplémentaires | USB for configuration/firmware |
8. Garantie et assistance
For warranty information, technical support, or service inquiries, please contact Decimator customer support directly. Refer to the official Decimator webVeuillez consulter le site web ou l'emballage du produit pour obtenir les coordonnées et les conditions de garantie les plus récentes.





