High-performance and high-capacity
--Dual 1080p streaming
--Universal interface, standard cable, easy to install and maintain
--Connect with digital mic and canon-mic directly
--Video: 6 in / 6 out, Audio: 9 in / 8 out
--100 meters image transmission (SDI)
Excellent network adaptability
--Embedded proxy to realize NAT/firewall transversal
--IPLR (Intelligent Packet Loss Recovery)
--Dynamic bitrate adjustment
--Qos(DiffServ, IP Precedence)
--Reconfigurable MTU
--IP confliction detection
--Automatic gateway finding and registration
--Automatic PPPoE re-call
--IP backup
Abundant functions and features
--Automatic dual stream source detection
--Real-time recording/monitoring/preview of local and remote video/audio through web

Applicable scenarioLarge/Middle Meeting Room(>100m² or Need More than 1 camera)
System standardH.323, SIP H.225, H.235, H239, H.245, H.281, H.460
Video StandardH.261, H.263, H.263+, H.264, H.264 High-Profile, MPEG-4
Audio StandardG.711, G.719, G.722, G.722.1 Annex C/Polycom Siren14TM, G.728, G.729, MP3, MPEG4-AAC(LC/LD)
Network ProtocolTCP/IP, Telnet, HTTP, FTP, SNMP, DHCP, RTP/RTCP, NTP, PPPoE
Conference Bitrate64Kbps-8Mbps
1080p (1920 x 1080)  720p (1280 x 720)  4CIF (704 x 576)  CIF (352 x 288) 
QCIF (176 x 144) 
UXGA (1600 x 1200)  WSXGA+ (1680 x 1050)  WSXGA (1440 x 900) 
SXGA (1280 x 1024)  WXGA (1280 x 800)  XGA (1024 x 768) 
SVGA (800 x 600) VGA (640 x 480)
Code CapacityH850-A: 1080p60 
H850-C: 720p60
Decode Capacity1080p60
Video Port2 x DVI-I in / out, 1 x SDI in / out, 1 x HDMI in / out 
1 x CVBS in / out, 1 x S-Video in / out 
Main stream: 
In: choose 1 from 6, DVI1 is default 
Out: DVI(main), HDMI, SDI, C, S simultaneous out 
Dual stream: 
In: choose 1 from 6, DVI2 is default 
Out: DVI(aux) DVI 1 / HDMI as alternative input 
C / S as alternative input
Audio Port2 x RJ11 digital audio in, 1 x XLR 48V phantom power in 
2 x RCA audio in / out, 2 x TRS (6.35mm) out 
DVI-I adapter to HDMI, HDMI, SDI all support audio 
Dual channel stereo supported
Control Port1 x RS232, 1 x RS422 
IR remote control
Network Port2 x 10/100/1000M Ethernet
Other Ports1 x FXO 
1 x USB(Hardware ready)
VideoLocal display supported 
Adjustable brightness, saturation, and contrast
AudioSampling frequency: 48 kHz 
AEC, ANS, and AGC supported 
Automatic labial synchronization supported 
Mute and dumb
Dual-streamH.239 supported 
Single/dual-screen dual-display supported 
Dynamic/static dual-stream supported 
Adjustable bandwidth
Network FeatureEmbedded proxy to realize NAT/firewall transversal 
IPLR (Intelligent Packet Loss Recovery)
FEC (Forward Error Correction) 
Dynamic bitrate adjustment 
Qos(DiffServ, IP Precedence) Reconfigurable MTU 
IP confliction detection 
Automatic gateway finding and registration 
Automatic PPPoE re-call 
IP backup
OSD Caption/Logo/BannerOSD caption can be sent as short messages to MTs and MCUs. 
OSD caption can be scrolled. 
OSD caption can be loaded. 
OSD logo can be configured. 
OSD banner overlay is supported. 
OSD banner background color, font sizes and fonts are configurable.
Security FeaturesEmbedded OS 
H.235 conference encryption 
AES encryption 
Conference password authentication 
User authentication and authorization 
Lock OSD interface 
Built-in firewall Settings 
Gateway password-protected
ManagementSNMP supported 
Configuration can be performed on the GUI using web 
Online Telnet/FTP/ Web-based configuration and upgrade 
Event logs can be managed 
Self-tests and loop/ribbon/audio tests are supported
Operating status testable 
Alarm display and sending 
Real-time video/audio bitrate display 
Address book importing/exporting supported
Conference FunctionsOne-to-one/multiple conferences 
Endpoint join-in request, chairman request, speaker request, and chime-in request Calling by E.164 ID, alias, and IP addresses
ElectricityPower consumption: ≤80W 
Power supply: DC 12V-14V
Operating EnvironmentOperating temperature: 0°C-45°C 
Operating humidity: 10%-90% (non-condensing) 
Atmospheric pressure: 70-106 kPa
Physical CharacteristicsDimensions: 44 x 443 x 360 mm (H x W x D), 1U 
Weight: < 8 kg