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TXS-3453 Transcoder

Home › Products › Sencore Video Delivery Products › TXS-3453 Transcoder

TXS-3453 Transcoder

The TXS 3453 is a Multichannel Video Transcoder which provides a powerful processing engine for linear broadcast transcoding needs.

Supporting MPEG transport stream inputs and outputs, the product can be configured to transcode up to sixteen HD channels of MPEG2 or H.264 in a 1RU form factor.

The TXS uses state of the art video compression techniques to achieve very low bitrates and exceptional picture quality - rivaling that of costly single-channel professional encoders.

The hardware can be configured and licensed to provide maximum value in any use case, from a single-channel per box up to sixteen channels. Maximum density is acheived via gigabit Ethernet inputs and outputs, although a variety of ASI input and output modules can be added to the box to support legacy architectures.

The TXS 3453 carries forward Sencore’s tradition of Ease of Use, providing an intuitive web GUI for unit control and status. It also supports full control through SNMP and a web services API.


Latest generation compression technology, enabling lower bitrates for both H.264 and MPEG2 Transcoding/transrating of up to 16 HD or SD video channels to or from either the MPEG2 or H.264 codec

ASI and IP inputs, supporting:

  • Single program MPEG2 transport streams 
  • Multi-program MPEG2 transport streams


ASI and IP outputs, supporting:

  • Single-program MPEG2 transport streams 
  • Audio and Data PID pass through 
  • Frame-accurate mapping of captions, SCTE-35 messages, AFD codes, and other ancillary data


Hot-swappable, redundant, load-sharing power supplies

Easy-to-use web interface

Full control, status, and alarm monitoring via SNMP

Technical Specifications

Multi-format MPEG2/H.264 with Integrated Full Decoder/Re-encoder
Up to 16 HD or SD Video PIDs Encoded per 1RU Chassis
Simultaneous Small Format/PiP Encode for Every HD/SD Transcode

Codec and Profile Support:
H.264 up to HP @ L4.1
MPEG2 up to MP @ HL

Video Formats Supported:
HD 1080-line interlaced @ 25, 29.97 and 30 Hz
HD 1080-line progressive @ 23.97, 24, 25, 29.97, and 30 Hz
(1920, 1440, and 1280-pixel widths supported)

HD 720-line progressive @ 50, 59.94, and 60 Hz
(1280 and 960-pixel widths supported)

NTSC 480-line interlaced @ 29.97Hz
PAL 576-line interlaced @ 25Hz
(720, 704, 640, 544, 528, 480, and 352-pixel widths supported)

Additional Web, Mobile, and IPTV PiP Formats @ 29.97Hz
(960x720, 960x540, 720x480, 640x480, 640x360, 416x240, 352x240, 320x240, 320x180, 192x192, 128x96, 96x96)

Additional Web, Mobile, and IPTV PiP Formats @ 25Hz
(352x288, 192x192, 176x144, 128x128, 128x96, 96x96)

Advanced Video Processing:
Scene detection
Fade detection
De-blocking filter
Skin tone detection
Automatic 3:2 Conversion
Automatic MBAFF/PAFF Support
CABAC Entropy Encoding
Reference B-Frames

Per-Service TS Output Bitrate: 500 Kbps to 30 Mbps
Video Output Bitrate: 100 Kbps to 30 Mbps
Video Output Mode: CBR or capped VBR

Pass-Through PIDs: Up to 4 per video transcode
Formats Supported:
Dolby Digital (AC-3)
Dolby Digital Plus (EAC-3)
MPEG1/2 audio layers 1 & 2

Input Format: Standard EIA 608/708
Output Formats: Standard EIA 608/708 or SCTE-20

PID Filtering and Remapping Capabilities
PSI Viewer for Incoming Services
Bitrate Measurement of Incoming Services and Streams

Ancillary Data Pass-through:
DVB Subtitles
DVB VBI Data (EN301775)
North American VBI (SCTE 127)
Closed Captioning (EIA 708)

ASI Connectors per chassis:
Up to 8 bidirectional (standard)
Up to 8 additional inputs or outputs (optional)
Connector: BNC
Impedance: 75Ω
Packet format: Auto detect 188/204 byte
TS Bitrate: 500 Kbps to 213 Mbps
Input TS Type: SPTS or MPTS
Output TS Type: SPTS

Number of Ports: Up to 4 GbE ports (standard)
Connector Type: RJ45 10/100/1000 - Auto Negot.
Input Format: UDP or RTP
IP Encapsulation: 1 to 7 TS packets per IP packet
Addressing: Unicast and Multicast
IGMP compatibility: Version 1, 2 & 3
Per TS Bitrate: 500 Kbps to 213 Mbps
Input TS Type: SPTS or MPTS
Output TS Type: SPTS

Connector: RJ-45 10/100 - Auto Negotiating
Protocols: HTTP and SNMP
User Interfaces:
Full control via web GUI
Basic setup/status via front panel
Automation Interfaces: Full status and control via SNMP
Configurable SNMP traps
Web services access to main GUI

Height: 1 RU, 1.75” (5cm)
Width: 17.4” (44.2 cm)
Depth: 23” (58 cm)
100-240 VAC 50/60 Hz @ 3 Amps
-48 VDC supply available
Supply Type: Dual, hot-swappable, redundant load sharing power supplies

Operating Temp: 0° to 45°C
Storage Temp: -40°C to 65°C
Relative Operating Humidity: <95% (non-condensing)


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