DS-A81024S - NAS Hikvision - Free user manual and instructions
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| Type of Product | Network Video Recorder (NVR) / NAS |
| Model | DS-A81024S |
| Brand | Hikvision |
| Dimensions (W x D x H) | 448 x 525 x 88 mm (19-inch rackmount, 2U) |
| Weight | Approximately 11.5 kg (without drives) |
| Power Supply | AC 100-240V, 50/60 Hz, dual redundant PSU |
| Power Consumption | ≤ 200 W (without HDDs) |
| Number of Drive Bays | 24 (hot-swappable 3.5" SATA HDDs) |
| Maximum Storage Capacity | Up to 240 TB (with 10 TB drives) |
| Supported RAID Levels | RAID 0, 1, 5, 6, 10, JBOD |
| Network Interfaces | 2 x Gigabit Ethernet (RJ-45), optional 10GbE |
| Video Recording | Up to 256 channels at 8 MP resolution |
| Main Functions | Live view, playback, backup, alarm management, remote access |
| Maintenance | Periodic HDD health check, firmware updates via web GUI |
| Cleaning | Clean exterior with dry cloth; avoid liquids; ensure ventilation |
| Safety | Overheat protection, surge protection, Kensington lock slot |
| Spare Parts and Repairability | Hot-swappable PSU and fans; HDDs and battery CR2032 user-replaceable |
| General Information | Rackmount chassis, low noise operation, compatible with Hikvision NVR software |
Frequently Asked Questions - DS-A81024S Hikvision
How do I initialize the DS-A81024S for the first time?
Connect the NVR to network and power. Use the SADP Tool from Hikvision to find the device. Assign an IP address and set a password. Then log in via web browser (e.g., 192.168.1.64) to start the Setup Wizard.
What hard drives are compatible with this NVR?
It supports 3.5-inch SATA III hard drives from manufacturers like Seagate SkyHawk or Western Digital Purple, designed for 24/7 surveillance. Maximum drive capacity is 10 TB per bay.
Can I access the recordings remotely?
Yes, enable DDNS or use the Hikvision Hik-Connect app. Forward ports (default 8000 for remote access) on your router. Ensure your network setup allows external access.
How to set up RAID on the DS-A81024S?
Go to Storage > Storage Management > RAID. Select disks and desired RAID level (e.g., RAID 5 for redundancy). The NVR will initialize and format the array. Backup data before starting.
Why is the NVR not detecting any cameras?
Check that cameras are on the same subnet. Verify IP addresses and use SADP Tool to discover cameras. Ensure correct protocol (ONVIF, Hikvision) and port numbers (default 554 for RTSP).
How do I update firmware on the DS-A81024S?
Download the latest firmware from Hikvision website. Log into NVR web interface, go to Maintenance > System Upgrade, upload the .dav file. Do not power off during upgrade.
What does the beeping sound indicate?
The beeping usually indicates a hard drive failure or system alarm. Check the event log under Maintenance > Log. Replace failed HDDs immediately to maintain data integrity.
Can I use the NVR without a display?
Yes, initial setup requires a monitor via VGA or HDMI. After configuration, you can manage it remotely via web browser or mobile app. For headless operation, use the SADP Tool for IP assignment.
How to clean the NVR?
Power off the unit. Use a dry, soft cloth to wipe the exterior. Do not use water, solvents, or compressed air inside. Ensure ventilation slots are unobstructed.
What is the maximum number of channels supported?
The DS-A81024S supports up to 256 IP cameras at 8 MP resolution, or 512 channels at lower resolutions, depending on camera bandwidth and storage configuration.
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USER MANUAL DS-A81024S Hikvision
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Product information
Brand : Hikvision
Model : DS-A81024S
Category : NAS