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Technical Specifications

LTS LTD8508K-ST / LTD8516K-ST Turbo HD DVR

The LTS LTD8508K-ST and LTD8516K-ST are high-capacity Turbo HD DVRs built for hybrid surveillance systems that need the flexibility to use HDTVI, AHD, HDCVI, CVBS, and IP cameras from a single recorder. The LTD8508K-ST provides 8 analog video inputs with support for up to 16 IP camera inputs, while the LTD8516K-ST provides 16 analog inputs with support for up to 32 IP camera inputs.

With support for cameras up to 8 MP, H.265 Pro+ compression, two SATA hard-drive interfaces, up to 10 TB per HDD, 4K HDMI output, audio over coax, remote connectivity, and smart video analytics, these DVRs give buyers a flexible platform for upgrading or expanding an existing security camera system.

Key Features

  • H.265 Pro+, H.265 Pro, H.265, H.264+, and H.264 video compression support.
  • Hybrid HDTVI, AHD, HDCVI, CVBS, and IP camera compatibility.
  • LTD8508K-ST: 8 analog channels with support for up to 16 IP camera inputs.
  • LTD8516K-ST: 16 analog channels with support for up to 32 IP camera inputs.
  • Supports IP cameras with resolutions up to 8 MP.
  • Recording support up to 8 MP Lite resolution.
  • Audio transmission over coaxial cable.
  • HDTVI transmission distances up to 800 m at 1080p and 1200 m at 720p.
  • Two SATA interfaces with up to 10 TB capacity per hard drive.
  • Maximum total storage capacity of up to 20 TB when using two 10 TB drives.
  • 4K HDMI video output up to 3840 × 2160 at 30 Hz.
  • VGA output up to 1920 × 1080 at 60 Hz.
  • Smart Search for more efficient recorded-video playback.
  • Supports Dropbox, Google Drive, and Microsoft OneDrive third-party cloud storage.
  • Supports multiple VCA video-content-analytics events.
  • Line-crossing and intrusion detection support.
  • Supports LTS-Connect and DDNS for network access and management.
  • Gigabit RJ45 Ethernet interface.
  • RS-485 serial interface.
  • USB 2.0 front port and USB 3.0 rear port.
  • Supports synchronous playback of 8 channels on the LTD8508K-ST and 16 channels on the LTD8516K-ST.

Model Comparison

Models
LTD8508K-ST / LTD8516K-ST
Product Type
Turbo HD DVR
LTD8508K-ST Analog Video Inputs
8 channels
LTD8516K-ST Analog Video Inputs
16 channels
LTD8508K-ST IP Video Inputs
8 channels, expandable up to 16 channels
LTD8516K-ST IP Video Inputs
16 channels, expandable up to 32 channels

Recording & Compression

Video Compression
H.265 Pro+ / H.265 Pro / H.265 / H.264+ / H.264
Encoding Resolution — 8 MP Lite Disabled
8 MP / 5 MP / 4 MP / 3 MP / 1080p / 720p / WD1 / 4CIF / VGA / CIF
Encoding Resolution — 8 MP Lite Enabled
8 MP Lite / 5 MP / 4 MP / 3 MP / 1080p / 720p / WD1 / 4CIF / VGA / CIF
Main Stream Frame Rate — 8 MP Lite Disabled
8 MP @ 8 fps; 5 MP @ 12 fps; 4 MP @ 15 fps; 3 MP @ 18 fps; 1080p / 720p / WD1 / 4CIF / VGA / CIF @ 25 fps (P) / 30 fps (N)
Main Stream Frame Rate — 8 MP Lite Enabled
8 MP Lite / 5 MP @ 12 fps; 4 MP / 3 MP / 1080p / 720p / WD1 / 4CIF / VGA / CIF @ 15 fps
Sub-Stream Frame Rate
WD1 / 4CIF / CIF @ 25 fps (P) / 30 fps (N)
Video Bit Rate
32 Kbps to 10 Mbps
Dual Stream
Supported
Stream Type
Video / Video & Audio
Audio Compression
G.711u
Audio Bit Rate
64 Kbps

Video Inputs & Camera Compatibility

Supported Video Technologies
HDTVI / AHD / HDCVI / CVBS / IP
Maximum IP Camera Resolution
Up to 8 MP
Supported IP Camera Compression
H.265+ / H.265 / H.264+ / H.264
Total Bandwidth
128 Mbps
Analog Video Interface
BNC, 1.0 Vp-p, 75 Ω, supporting coaxitron connection
HDTVI Input
8 MP, 5 MP, 4 MP, 3 MP, 1080p30, 1080p25, 720p60, 720p50, 720p30, 720p25
AHD Input
5 MP, 4 MP, 1080p25, 1080p30, 720p25, 720p30
HDCVI Input
5 MP, 4 MP, 1080p25, 1080p30, 720p25, 720p30
CVBS Input
PAL / NTSC
HDTVI Maximum Transmission Distance
Up to 800 m at 1080p and up to 1200 m at 720p

Video Outputs

CVBS Output
1-channel BNC, 1.0 Vp-p, 75 Ω; PAL 704 × 576 / NTSC 704 × 480
VGA Output
1-channel; 1920 × 1080/60 Hz, 1280 × 1024/60 Hz, 1280 × 720/60 Hz, 1024 × 768/60 Hz
HDMI Output
1-channel; 4K (3840 × 2160)/30 Hz, 2K (2560 × 1440)/60 Hz, 1920 × 1080/60 Hz, 1280 × 1024/60 Hz, 1280 × 720/60 Hz, 1024 × 768/60 Hz

Audio

Audio Over Coax
Supported
Audio Input
4-channel RCA, 2.0 Vp-p, 1 KΩ
Audio Output
1-channel RCA, Linear, 1 KΩ
Two-Way Audio
1-channel RCA, 2.0 Vp-p, 1 KΩ, using the first audio input

Playback & Storage

LTD8508K-ST Synchronous Playback
8 channels
LTD8516K-ST Synchronous Playback
16 channels
Smart Search
Supported
SATA Interfaces
2
Maximum Capacity Per HDD
Up to 10 TB
Maximum Total Internal Capacity
Up to 20 TB using two 10 TB HDDs
Third-Party Cloud Storage
Dropbox / Google Drive / Microsoft OneDrive

Smart Analytics

Video Content Analytics
Supports multiple VCA events for analog and smart IP cameras
Line Crossing Detection
Supported
Intrusion Detection
Supported
Sudden Scene Change Detection
2 channels
VCA Limitation
Normally only CH1/CH2 support VCA. When Enhance VCA mode is enabled, all channels support VCA, but maximum resolution is limited to 2 MP.

Network

LTD8508K-ST Remote Connections
64
LTD8516K-ST Remote Connections
128
Network Protocols
TCP/IP, PPPoE, DHCP, LTS-Connect, DNS, DDNS, NTP, SADP, NFS, iSCSI, UPnP™, HTTPS, ONVIF
Network Interface
1 × RJ45 10M/100M/1000M self-adaptive Ethernet interface
Remote Management
LTS-Connect and DDNS

Auxiliary Interfaces

Serial Interface
RS-485, half-duplex
Front USB
1 × USB 2.0
Rear USB
1 × USB 3.0
LTD8508K-ST Alarm Input / Output
8 / 4
LTD8516K-ST Alarm Input / Output
16 / 4

Power & Environmental

LTD8508K-ST Power Supply
12 VDC, 3.33 A
LTD8516K-ST Power Supply
12 VDC, 5 A
LTD8508K-ST Power Consumption
≤ 20 W without HDD
LTD8516K-ST Power Consumption
≤ 25 W without HDD
Working Temperature
-10 °C to +55 °C (+14 °F to +131 °F)
Working Humidity
10% to 90%

Physical Specifications

Dimensions (W × D × H)
380 × 320 × 48 mm (15.0 × 12.6 × 1.9 in)
LTD8508K-ST Weight
≤ 1.78 kg (3.9 lb), without HDD
LTD8516K-ST Weight
≤ 2 kg (4.4 lb), without HDD

Physical Interfaces

1
VIDEO IN
2
AUDIO IN, RCA Connector
3
AUDIO OUT, RCA Connector
4
VGA Interface
5
HDMI Interface
6
USB Interface
7
LAN Network Interface
8
RS-485 Serial Interface
9
12 VDC Power Input
10
Power Switch
11
GND
12
VIDEO OUT
13
Alarm In / Out
LTD8516K-ST Rear Video Interfaces
16 video input interfaces

Accessories Found

Included / Optional Accessories
No specific accessories are listed in the provided manufacturer datasheet.

Ideal Applications & Common Uses

The following applications are derived from the recorder capabilities listed in the manufacturer datasheet:

  • Existing coaxial CCTV upgrades: Useful for upgrading an older analog surveillance system while continuing to use existing coaxial camera wiring.
  • Hybrid analog + IP surveillance systems: Supports HDTVI, AHD, HDCVI, CVBS, and IP cameras, making it suitable for installations combining multiple camera technologies.
  • Homes and small-to-medium businesses: The 8- and 16-channel analog configurations provide options for residential, retail, office, warehouse, and similar multi-camera installations.
  • Systems requiring future camera expansion: The LTD8508K-ST can support up to 16 IP camera inputs and the LTD8516K-ST can support up to 32 IP camera inputs.
  • High-resolution surveillance: Suitable for installations using compatible cameras up to 8 MP resolution.
  • Long coaxial cable installations: HDTVI signals can reach up to 800 meters at 1080p and up to 1200 meters at 720p under the specifications provided by the manufacturer.
  • Long-term local video storage: Two SATA interfaces supporting up to 10 TB per drive provide substantial recording capacity.
  • Remote surveillance: LTS-Connect, DDNS, and network connectivity support remote system access and management.
  • Smart perimeter monitoring: Line-crossing, intrusion, sudden scene-change, and other VCA functions can help operators identify selected surveillance events more efficiently.
  • Systems requiring local 4K monitor output: HDMI output supports resolutions up to 3840 × 2160 at 30 Hz.
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