1U B2 Essential Series

1U 2Bay Storage Type PC based NVR

2025-08-18 NVR

Features

3.5" HDD up to 2ea (Max. 48TB)
Highly reliable 64-bit Linux-based network video recorder
Clear video quality with H.265 / H.264 compression
Support all resolutions including 12M / 8M / 5M / 2M / 1.3M
Fast and stable system operation using DOM-SSD
ONVIF / RTSP standard protocol
Various display mode and full screen mode
Continuous / Scheduled / Event Recording Modes
Various events like motion / sensor / camera signal loss / disk failures
Multi User Level and Screen Lock
User Authentication with Fingerprint Mouse
Smart Failover: Automatic takeover to spare units when system is stopped
Bidirectional audio transmission
Model Line-up : 4, 9, 16, 25 CH

Dimensions

Specification

Model		EM-04B2	EM-09B2	EM-16B2	EM-25B2
Video Input	IP Camera	4CH	9CH	16CH	25CH
CPU		Dual Core 1.0GHz or Higher
RAM		DDR4 4GB	DDR4 4GB	DDR4 8GB	DDR4 16GB
Display	Monitor Output	1xHDMI / 1xVGA
	Split screen	1 / 2 / 4	1 / 2 / 4 / 6 / 7 / 9	1 / 2 / 4 / 6 / 7 / 9 / 10 / 13 / 16	1 / 2 / 4 / 6 / 7 / 9 / 10 / 13 / 16 / 25
	Live/Search	Supported Max.12M
	Performance (CH/fps)	12M(1CH/15fps) 8M(1CH/30fps) 5M(2CH/60fps) 1080P(4CH/120fps)	12M(1CH/30fps) 8M(2CH/60fps) 5M(4CH/120fps) 1080P(9CH/270fps)	12M(2CH/60fps) 8M(4CH/120fps) 5M(6CH/180fps) 1080P(16CH/480fps)	12M(3CH/90fps) 8M(4CH/120fps) 5M(6CH/240fps) 1080P(25CH/750fps)
Recording	Mode	Continuous / Scheduled / Events
	Performance	Max. 500Mbps CIF~12MP
	Compression	H.265 / H.264 / MPEG4 / MJPEG
Search / Replay	Mode	Date / Time Calendar Search, Channel Bundle Search, Event Search
Search / Replay	Replay Control	Play forward / backward (fast:x1~x32, slow:1/4~1/2), Step forward / backward

Common Specification

IP Camera	Resolution	CIF~12M
IP Camera	Protocol	Supported ONVIF / RTSP and Axis / Sony / Panasonic / Hanwha Vison / Turen / Dahua / Hikvision etc. over 130+
Operating System		Linux 64bit(Embedded) / mSATA SSD 16GB(dedicated for OS, NVR SW)
Storage	Default	N/A
	Available	3.5" HDD up to 2ea (24TB HDD, Max. 48TB)
	RAID (option)	Not Supported
	Hot Swap	Hot Plug supported
	External	Not Supported
Backup	Mode	Video (Multiple Channels, Time / Event Subtitle, Encryption), Still Image (Partial Mosaic supported)
Backup	File Format	MP4, JPG
Event	Type	Motion Detection, Sensor, Relay, Disk Failure, Camera Signal Loss / Recovery, Emergency Call, LPR, POS, Elevator, Flame / Smoke Detection, Abnormal Sound Detection, Thermal Event, Intelligent Server Integration
Event	Action	Recording, Alarm, Camera pop-up, Warning message, Warning sound, E-mail, FTP, Preset
Application	PC	Live, Search, Backup, Event Manager, E-Map, Multi-monitors, Pan/Tilt/Zoom Control, NVR Setting
	Web	Live, Pan / Tilt / Zoom for all channels
	Mobile	iOS / Android Apps
Network	Interface	10/100/1000 Base-Tx Ethernet (RJ45) - 1ea
	Simultaneous Access	1024 (within network bandwidth)
	Protocol	TCP/IP, UDP, DNS, DDNS, HTTP, NTP, RTP/RTCP, RTSP
	Bandwidth Control	Automatic, Manual
Security		Multi User Level
Failover		Supported
Data/Time Synchronization		Windows / NTP Time Server Synchronization, Integrated NTP Server, RFTC Synchronization, Self-Synchronization via GPS(option)
Intelligence Solution	Built-in	EMSTONE AI-based video analysis Flame/Smoke detection each 1CH (※ Additional License Option)
Intelligence Solution	External	Elevator CRT Servers, EM-Call Servers, LPR Servers, LPR Cameras, Flame/Smoke Detect Servers
Operating Temp / Humidity		5℃~40℃ / 0%~90%
Power Supply / Current		DC12V 5A Adapter (AC100 ~ 240V 50/60Hz)
Dimension (W x H x D)		430.0(W) Ⅹ 44.5(H) Ⅹ 249.5(D)mm
Weight		3.66kg (without HDDs)

※ USB type product should be used when KVM switches are used. (PS/2 type not available)
※ The specification of this product may change without prior notice.

Downloads

Type	File
Catalog	1UB2_CATALOG_EN_20241127.pdf