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Technical Specifications

ENS SD2432/48I-K H.265+ All-In-One Digital Video Recorder

The ENS SD2432/48I-K is a high-capacity hybrid digital video recorder designed for surveillance systems that need the flexibility to combine analog HD and IP cameras in one platform. It supports HDTVI, AHD, HDCVI, CVBS, and IP video sources, making it well suited for upgrading an existing camera system without necessarily replacing every camera at once.

With 32 analog video inputs and support for up to 48 IP camera inputs at resolutions up to 6MP, the SD2432/48I-K gives larger security installations room to expand. H.265+ compression helps reduce storage and bandwidth requirements, while dual SATA interfaces support hard drives with capacities of up to 10TB each.

The recorder also provides 4K HDMI output, 16-channel synchronous playback, VCA support, alarm I/O, two-way audio, POS-triggered recording, and long-distance HDTVI transmission for demanding commercial surveillance environments.

Key Features

  • H.265+, H.265, H.264+, and H.264 video compression support
  • 32-channel analog video input
  • Supports HDTVI, AHD, HDCVI, CVBS, and IP video sources
  • 16 IP channels with support for up to 48 IP camera inputs
  • Supports IP cameras at resolutions up to 6MP
  • Maximum HDTVI transmission distance of 800 m at 1080P
  • Maximum HDTVI transmission distance of 1200 m at 720P
  • HDMI2 output supports up to 4K 3840 × 2160 at 30 Hz
  • Dual SATA interfaces
  • Supports up to 10TB storage capacity per hard drive
  • 16-channel synchronous playback
  • Supports multiple VCA events for analog and smart IP cameras
  • POS-triggered recording and POS information overlay support
  • 16 alarm inputs and 4 alarm outputs
  • 128 remote connections
  • Independent two-way audio connection
  • Gigabit Ethernet network interface
  • Front USB 2.0 and rear USB 3.0 connectivity

Video / Audio Input

Video Compression
H.265+ / H.265 / H.264+ / H.264
Analog Video Input
32 channels, BNC interface (1.0 Vp-p, 75 Ω), supporting coaxitron connection
HDTVI Input
4MP / 3MP / 1080P @ 30 fps, 1080P @ 25 fps, 720P @ 60 / 50 / 30 / 25 fps
HDTVI 3MP Note
The 3MP signal input is only available for channels 1 / 2 / 3 / 4.
AHD Input
4MP / 1080P @ 25 fps, 1080P @ 30 fps, 720P @ 30 / 25 fps
HDCVI Input
1080P @ 30 / 25 fps, 720P @ 30 / 25 fps
CVBS Input
PAL / NTSC
IP Video Input
16 channels, up to 48 channels
Maximum IP Camera Resolution
Up to 6MP
Supported IP Camera Compression
H.265+ / H.265 / H.264+ / H.264
Audio Compression
G.711u
Audio Input
1 channel, RCA (2.0 Vp-p, 1 KΩ)

Video / Audio Output

CVBS Output
1 channel, BNC (1.0 Vp-p, 75 Ω); PAL: 704 × 576, NTSC: 704 × 480
HDMI1 / VGA Output
1 channel; 1920 × 1080 / 60 Hz, 1280 × 1024 / 60 Hz, 1280 × 720 / 60 Hz, 1024 × 768 / 60 Hz
HDMI2 Output
1 channel, maximum 4K 3840 × 2160 / 30 Hz
Encoding Resolution — 1080P Lite Disabled
4MP Lite / 3MP / 1080P / 720P / WD1 / 4CIF / VGA / CIF
Encoding Resolution — 1080P Lite Enabled
4MP Lite / 3MP / 1080P Lite / 720P Lite / WD1 / 4CIF / VGA / CIF

Main Stream Frame Rate

1080P Lite Mode Disabled — 4MP Stream Access
4MP Lite @ 15 fps; 1080P Lite / 720P / WD1 / 4CIF / VGA / CIF @ 25 fps (P) / 30 fps (N)
1080P Lite Mode Disabled — 3MP Stream Access
3MP / 1080P / 720P / VGA / WD1 / 4CIF / CIF @ 15 fps
1080P Lite Mode Disabled — 2MP (1080P) Stream Access
1080P / 720P @ 15 fps; VGA / WD1 / 4CIF / CIF @ 25 fps (P) / 30 fps (N)
1080P Lite Mode Disabled — 720P Stream Access
720P / VGA / WD1 / 4CIF / CIF @ 25 fps (P) / 30 fps (N)
1080P Lite Mode Enabled
4MP Lite / 3MP @ 15 fps; 1080P Lite / 720P Lite / VGA / WD1 / 4CIF / CIF @ 25 fps (P) / 30 fps (N)

Streaming & Audio

Sub-Stream Frame Rate
WD1 / 4CIF @ 12 fps; CIF @ 25 fps (P) / 30 fps (N)
Video Bitrate
32 Kbps ~ 6 Mbps
Audio Output
1 channel, RCA (Linear, 1 KΩ)
Audio Bitrate
64 Kbps
Dual Stream
Support
Synchronous Playback
16 channels

Storage

SATA
2 SATA interfaces
Maximum HDD Capacity
Up to 10TB capacity for each disk

Network & Interface

Network Interface
1 × RJ-45 (10 / 100 / 1000 Mbps), self-adaptive Ethernet
Network Protocols
TCP/IP, PPPoE, DHCP, Hik-Connect, DNS, DDNS, NTP, SADP, NFS, iSCSI, UPnP™, HTTPS, ONVIF, SNMP
Two-Way Talk
1 channel, RCA (2.0 Vp-p, 1 kΩ), independent
USB
Front: 2 × USB 2.0 / Rear: 1 × USB 3.0
Alarm In / Out
16 / 4
Remote Connections
128

General

Power Supply
100 ~ 240 V AC
Power Consumption
≤ 45 W
Operating Conditions
-10°C ~ 55°C (14°F ~ 131°F) / Less than 90% RH
Dimensions
440 × 390 × 70 mm (17.3" × 15.4" × 2.8")
Weight
≤ 7 kg (15.4 lb), without HDD

Physical Interfaces

Video Input
Rear-panel video input connections
Audio Input
RCA connector
Line In
Rear-panel line input
Audio Output
Rear-panel audio output
Video Output
Rear-panel video output
RS-485 / Keyboard / Alarm I/O
Supported
RS-232 Serial Interface
Supported
VGA Interface
Supported
eSATA Interface
Supported
HDMI1 Interface
Supported
HDMI2 Interface
Supported
LAN Network Interface
Supported
USB Interface
Supported
GND
Ground connection
AC Power Input
100 ~ 240 V AC
Power Switch
Rear-panel power switch

Accessories Found

No included or optional accessories are explicitly listed in the provided manufacturer datasheet.

Ideal Applications & Common Uses

Based on the recorder's channel capacity, hybrid video compatibility, storage capability, alarm interfaces, POS support, and networking features, this model is suited to larger multi-camera surveillance installations.

  • Large commercial CCTV systems
  • Retail stores requiring POS-related video recording
  • Warehouses and distribution facilities
  • Office buildings and multi-floor commercial properties
  • Schools and other facilities requiring many camera channels
  • Existing analog CCTV systems being expanded with IP cameras
  • Hybrid systems combining HDTVI, AHD, HDCVI, CVBS, and IP cameras
  • Projects requiring long-distance HDTVI video transmission
  • Security installations requiring alarm input and output integration
  • Centralized surveillance applications requiring remote network access
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