DAHUA EVS7148S 48 bay Embedded Video Storage

System

Main Processor

64-bit multi-core processor

Operating System

Embedded LINUX

Operation Interface

Web

Controller

Single controller

RAM

8 GB by default (extendable to 64 GB)

Power Redundancy

1+1

External Ports

SAS

2 mini SAS HD ports with maximum speed 12Gb/s

Network

1 × 1GbE management port; 4 × 1GbE LAN ports

Network Extension

4 × 1-GbE LAN ports and 2 × 10-GbE optical fiber ports are optional

eSATA

1 × eSATA

RS-232

1 × DB9

HDMI

1 × HDMI

Internal Expansion

M.2 SSD

2 × NVMe SSD ports

PCI-E

1 × PCI-E X8; 1 × PCI-E X4

Disk

1 × 2.5-inch SATA

Disk

Disk Bay

48

Disk Type

1TB; 2TB; 3TB; 4TB; 5TB; 6TB; 8TB; 10TB; 12TB; 14TB; 16TB;

2.5-inch and 3.5-inch HDD

Support simultaneously connecting to SATA/SAS

Disk Installation

Independent disk tray

Hot Swapping

Yes

RAID Type

RAID 0/1/5/6/10/50/60; JBOD; hot-spare

Disk Processing

Bad sector mapping

Disk Management

Non-working disks automatic sleep

Disk Inspection

Inspection before use and during use

Performance

Video Direct Storage (Private Protocol)

Up to 512-channel (1024 Mbps) access, storage, and forwarding; 32-channel (64 Mbps) online playback

Video Direct Storage (ONVIF)

Up to 512-channel (1024 Mbps) access, storage, and forwarding; 32-channel (64 Mbps) online playback

Video Direct Storage (Auto Register)

Up to 512-channel (1024 Mbps) access, storage, and forwarding; 32-channel (64 Mbps) online playback

Picture Direct Storage

Up to 512-channel access, storage, and

forwarding (250 KB/Picture)

IPSAN Performance

360-channel × 2 Mbps video stream writing and 24-channel × 2 Mbps video playback ( I/O size of VMS is 64 KB)

Function

IPSAN Mode

Yes

IPSAN Function

Dynamic online extension of logic volumes

Video Storage

Direct storage

Network Protocol

RTP; RTCP; RTSP; UDP; HTTP; NTP; SNMP; iSCSI; FTP; SMB; NFS

RTSP

ONVIF

Cluster

N+M

Automatic Network Replenishment (ANR)

Videos during network failure upload to EVS automatically afterwards

Network Mode

Multiple-address, link aggregation,

fault-tolerance, load balance

Quick RAID

Yes

RAID Instant Use

Yes

RAID Rebuilding

Self-adaptive rebuilding

RAID-write Synchronization

Yes

Record Mode

Scheduled, manual, motion-triggered and alarm triggered

Video Playback

Web playback, concentrated playback, slice playback, synchronous playback
Search video by second
Adjustable playback speed

Video Codec

Access by cameras with encoding formats of MPEG4, MJPEG, H.264, H.265, and SVAC
Access by multi-sensor cameras, thermal cameras, and panoramic cameras

Video Backup

Back up video through USB, network, and eSATA

General

Power Supply

100–127V/200–240 VAC, 50/60 Hz, 8A/4A

Fan

Dual ball-bearing fans

Power Consumption

<95 W (without HDD, idling)

<800 W (all HDDs connected)

Operating Temperature

0 °C to 45 °C (32 °F to 113 °F)

Operating Humidity

10%–80% (RH) (non-condensation)

Storage Temperature

–20 °C to +70 °C (–4 °F to +158 °F)

Storage Humidity

5%–90% (RH) (non-condensation)

Operating Altitude

≤ 5000 (16,404.20 ft) m

Certifications

CE: EN 55024; EN 55032; EN 55035; EN 50130-4; EN 61000-3-2; EN 61000-3-3; EN 62368

FCC: ANSI C63.4, 47 CFR PART 15B Subpart B

Chassis

1.2 mm hot dip galvanized steel plate
Independent developed pull-out disk tray

Dimensions

With hanger: 482.6 mm × 261.4 mm × 736.5 mm (19" × 10.29" × 29") (W × H × D)
Without hanger: 446 mm × 261.4 mm × 736.5 mm (17.56" × 10.29" ×29") (W × H × D)

Net Weight

36 kg (79.37 lb)

Gross Weight

75 kg (165.35 lb)

Installation

Standard 19 inch rack