1. Kupu Whakataki
This manual provides detailed instructions for the installation, operation, and maintenance of the Commax DR-8UM 8-Button Audio Intercom Lobby Panel. Please read this manual thoroughly before installation and use to ensure proper functionality and safety.
The DR-8UM is designed for 8-apartment buildings, facilitating audio communication between visitors at the lobby panel and residents inside their apartments.
2. Nga korero haumaru
- Me whakarite kia momotu katoa te hiko i mua i te tāutanga, i te tiaki rānei.
- Me whakauru nga kaimahi whai mana ki te whakauru.
- Use only the specified power supply (DC12V, 1Amp, Commax RF-1A or equivalent).
- Do not expose the unit to excessive moisture or extreme temperatures outside the specified operating range (-10°C ~ 50°C).
- This unit is designed for flush-mounted installation.
3. Ihirangi mokete
Manatokona kei roto katoa nga mea kei roto i te kete:
- Commax DR-8UM 8-Button Lobby Panel x1
- 4-pin connector x1
- 8-pin connector x1
- Instruction Manual x1 (this document)
4. Hua Neke Atuview
The Commax DR-8UM is an audio intercom lobby panel featuring 8 call buttons, a speaker, and a microphone. It is constructed from aluminum and designed for flush mounting.

Whakaahua 4.1: Mua view of the Commax DR-8UM 8-Button Audio Intercom Lobby Panel. The panel features a speaker grille at the top, followed by a microphone, and eight call buttons arranged vertically on the right side. Each button corresponds to an apartment unit.
5. Tāutanga
5.1 Te Whakaeke i te Paewhiri
The DR-8UM is designed for flush-mounted installation. Ensure adequate space is available in the wall for the back box.

Whakaahua 5.1: Installation diagram showing the dimensions for flush mounting the Commax DR-8UM. The diagram illustrates the panel's front plate, the recessed back box, and the screw points for secure installation. Key dimensions are provided in millimeters.
Ahu: 142 mm (W) x 315 mm (H) x 50 mm (D).
- Prepare the wall opening according to the dimensions provided in Figure 5.1.
- Secure the back box (not explicitly shown but implied by flush mount) into the wall opening.
- Route the necessary wiring through the back box.
- Attach the DR-8UM panel to the back box using appropriate screws, ensuring a secure and flush fit.
5.2 Hononga Waea
The DR-8UM requires a DC12V, 1Amp power supply (Commax RF-1A, sold separately). It is compatible only with Commax interphone series, such as the DP-SS (sold separately).
Momo Waea: Common 3 wires + Individual 1 wire (Wire 3 wires: 1, 2, 3; Individual 1 wire: L1).
Connect the 4-pin and 8-pin connectors to the corresponding ports on the DR-8UM panel and to the interphone system according to the system's wiring diagram. Ensure correct polarity for the power supply.
6. Nga Tohutohu Whakahaere
The Commax DR-8UM allows visitors to call and communicate with residents in an 8-apartment building.
- To Call an Apartment: A visitor presses the corresponding button for the desired apartment unit on the lobby panel.
- Whakawhitiwhiti-rua: Once the resident answers via their indoor interphone unit (e.g., DP-SS), two-way audio communication is established between the visitor at the lobby panel and the resident.
7. Tiaki
- Te horoi: Wipe the panel surface with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Tirotiro: Periodically check for any loose connections or physical damage.
- Pātene Taumahi: Ensure all call buttons operate smoothly. If a button becomes faulty, contact customer support for assistance.
8. Te Raru
| Raruraru | Take pea | Rongoā |
|---|---|---|
| Kaore he mana ki te waeine. | Incorrect power supply connection or faulty power adapter. | Check power supply (DC12V, 1Amp) and connections. Ensure the power adapter is functional. |
| Kāore he oro i te wā e kōrero ana. | Incorrect wiring, faulty indoor unit, or damaged speaker/microphone. | Verify wiring connections (Common 3 wires + Individual 1 wire). Test with a known working indoor unit. |
| Call button not responding. | Faulty button or wiring issue to that specific apartment. | Inspect the button for physical damage. Check the individual wire connection for that apartment. Contact support if the button is faulty. |
| Te mahi mokowhiti. | Loose wiring connections or unstable power supply. | Secure all wiring connections. Ensure the power supply is stable and within specifications. |
9. Whakatakotoranga

Whakaahua 9.1: Technical specifications table for the Commax DR-8UM, detailing model, power source, wiring, communication type, mount type, temperature range, dimensions, and communication distance based on cable diameter.
| Āhuahira | Taipitopito |
|---|---|
| Tauira | DR-8UM |
| Puna Mana | DC12V, 1Amp (Commax RF-1A, sold separately) |
| Waea waea | Common 3 wires + Individual 1 wire (Wire 3 wires: 1, 2, 3; Individual 1 wire: L1) |
| Momo Tauhokohoko | 2-ara ororongo |
| Momo Maunga | Whakapuruhia |
| Te Waahi Mahi | -10°C ~ 50°C |
| Ahu (W x H x D) | 142 mm x 315 mm x 50 mm |
| Compatible Interphone | Commax DP-SS series (sold separately) |
10. Pūtāhui me te Tautoko
For warranty information and technical support, please refer to the official Commax webpaetukutuku, whakapā atu rānei ki tō kaituku ā-rohe. Puritia tō rīhiti hoko mō ngā kereme pūtāhui.
For replacement parts, including individual buttons, please contact Commax customer service directly as parts availability may vary.





