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BE8500 HD/SD H.264 or AVS Dual Encoder

The Telairity BE8500 is a versatile video encoder, able to autosense either HD or SD iEnpleutcvideo formats, and automatically select a corresponding encoding mode. It combines leading-edge compression technology (either H.264/AVC or AVS) with settable encode latencies ranging from 150ms to 2 seconds. Featuring “instant on” for immediate availability, simple “two button” front panel control for quick and easy field operation, wide temperature tolerance, optional dual redundant power supplies and optional external audio inputs (AES and analog stereo), the cost-effective and reliable BE8500 addresses the critical needs of broadcasters for flexible encoding.

H.264/AVC Video Encoding Features

  HD Formats SD Formats
Profile High @ Level 4; AVS-P2 Main @ Level 3; AS-P2
Input Lines 1080i/p< &emdash; >720p 576i (PAL), 480i (NTSC)
Output Widths 1920, 14401280960> 720, 640, 544, 480, 352, CIF
Bit Rates 2-15Mbps 0.1Mbps-5Mbps
  • Autodetection of Input Format; Autoselection of Corresponding Output Format
  • Rate Control
    • Constant Bit Rate (CBR), Variable Bit Rate (VBR)
  • Scene change detection
  • Entropy Coding: CABAC or CAVLC per AVC or AVS profiles
  • Adjustable Spatial Preprocessing and Deblocking (Loop) Filters

Audio Encoding Features

  • HD/SD-SDI embedded audio input – per SMPTE 299M/272M
    • Four programs (stereo pairs)
    • Stereo, Dual Mono, Mono
  • MPEG-1 Layer 2 or MPEG-4 (H.264/AVC) AAC-LC encoding standards
    • Selectable on a per-channel basis
    • Bit rates: 32 to 384 Kbps
  • Dolby Digital (AC-3) pass-through

Control Features

  • On board Flash memory for fast program upload at boot
  • Web browser control via Ethernet interface
  • Rapid-reset Front Panel with “two-button” selection of 4 programmable profiles


  • 2 MPEG-2 transport streams over DVB - ASI
  • 2 IP Transport streams with TOS over 10/100 Base-T Ethernet

Video Input

Input Format:
High or Standard Definition – Serial Digital Interface (HD-SDI SMPTE 292M; SD-SDI SMPTE 259M)
Video Input Formats:
4:2:2 for HD (720p, 1080i/p30) or SD (576i, 480i)
Frame Rates:
*720p only
Frames per second: progressive mode
23.98, 24, 25, 29.97, 30, 50*, 59.94*, 60*
Fields per second: interlaced mode
50, 59.94, 60
HD / SD-SDI Video In:
I BNC Connector
HD / SD-SDI Loop Out:
I BNC Connector

Audio Input

Input Format:
Embedded per SMPTE 299M (HD-SDI); 272M (SD-SDI)
Dolby Digital (AC-3) pass-through
External option: 2 AES + 2 Analog stereo pairs

Compressed A/V Output

Output Interfaces:
2 Digital Video Broadcast – Asynchronous Serial Interfaces (DVB-ASI), 270Mbps, buffered non-inverting
2 10/100 Base-T Ethernet
Packet Format:
MPEG-2 188 byte Transport Stream (TS) packets in either TS/UDP/IP or TS/RTP/UDP/IP format with optional FEC
Compressions Format:
H.264: High, Level 4 (HD); Main, Level 3 (SD); AVS-P2
Compressed Bitrates:
User programmable: CBR or VBR
2-15Mbps HD, 0.1-5Mbps SD
ASI Stream Out:
2 BNC connectors
IP Stream Out:
2 RJ-45 connectors


Control Application:
Web browser Interface over Ethernet
Direct Presets:
User-programmable front panel control
4 contact closures to detect failure of power supply or fan, over-temperature, 1 software-definable condition
Reporting Agent (option)

Power Specifications

Input Voltage:
100 to 240 VAC (Auto sensing)
Line Frequency
47 to 63 Hz
Power consumption:

Mechanical Specifications

Dimensions & Weight:
1RU (H) x 19” (W) x 18” (D) rack mountable, 18 lbs.

Environmental Specifications

Forced air-cooling, front to rear
Operating Temperature:
-10° to 55°C