EVS7048D-R - Server Dahua Technology - Free user manual and instructions
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| Product Type | Network Video Recorder (NVR) |
| Brand | Dahua Technology |
| Model | EVS7048D-R |
| Channels | 48 |
| Supported Hard Drives | Up to 24 SATA HDDs (3.5") |
| RAID Support | RAID 0, 1, 5, 6, 10, 50, 60 |
| Video Compression | H.265, H.264, MJPEG |
| Recording Resolution | Up to 12MP per channel |
| Dimensions (W x D x H) | 440 x 450 x 88 mm (2U rackmount) |
| Weight | Approximately 15 kg (without HDDs) |
| Power Supply | 100-240V AC, 50/60 Hz, redundant PSU |
| Power Consumption | < 300W (without HDDs) |
| Operating Temperature | -10°C to 55°C |
| Storage Temperature | -20°C to 70°C |
| Network Interfaces | 2 x Gigabit Ethernet, 1 x 10GbE SFP+ |
| Audio Support | 1-ch audio input, 1-ch audio output |
| Alarm I/O | 16 alarms in, 6 alarms out |
| Maintenance | Regular firmware updates, HDD health monitoring via S.M.A.R.T. |
| Safety Certifications | CE, FCC, UL, RoHS |
| Included Accessories | Rackmount ears, power cords, user manual CD |
| Repairability | Modular design; hot-swappable PSU and fans; easy HDD replacement |
| Warranty | 3 years limited |
Frequently Asked Questions - EVS7048D-R Dahua Technology
How do I reset the EVS7048D-R to factory defaults?
Press and hold the Reset button on the front panel for 10 seconds. The device will reboot and restore default settings.
What is the maximum number of hard drives supported?
The EVS7048D-R supports up to 24 SATA hard drives (3.5-inch) for massive storage capacity.
Can I use this NVR with third-party IP cameras?
Yes, it supports ONVIF Profile S, G, and T, allowing integration with many third-party cameras.
How do I access the device remotely?
Use the Dahua DMSS app on your smartphone or the web interface via a browser after enabling P2P or port forwarding.
Does the EVS7048D-R support RAID?
Yes, it supports RAID 0, 1, 5, 6, 10, 50, 60 for data redundancy and performance.
What is the maximum recording resolution per channel?
It can record up to 12 megapixels per channel with H.265 compression.
How can I update the firmware?
Download the latest firmware from the Dahua website, then go to Main Menu > Maintenance > Upgrade in the web interface.
What are the power requirements?
The NVR uses a redundant power supply accepting 100-240V AC, 50/60 Hz. Power consumption is under 300W without HDDs.
Can I expand storage externally?
Yes, via eSATA or iSCSI connections to external storage arrays.
How do I clean and maintain the device?
Use a dry cloth to clean the exterior. Ensure proper ventilation and replace fans if they become noisy. Check S.M.A.R.T. status for HDDs periodically.
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USER MANUAL EVS7048D-R Dahua Technology
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Product information
Brand : Dahua Technology
Model : EVS7048D-R
Category : Server