Untitled Product
title: "E1 Intelligent Audio and Video Terminal | Raytrans | SDH Equipment Manufacturer | Command and Dispatch System Manufacturer"
articleTitle: E1 Audio and Video Terminal
model: "Video\Audio\Data three-in-one compression into a 2M PCM stream, no dedicated line required,"
category: 音视频调度
keywords: "Audio and Video Dispatching,Product Showcase,Intelligent Audio and Video Terminal,Raytrans,SDH Equipment Manufacturer,Command and Dispatch System Manufacturer,Government Private Network Optical Fiber Communication Solution,Military Emergency Communications Vehicle Solution"
description: "The E1-based audio and video terminal is a 19-inch 1U chassis designed for E1 transmission channels. It uses H.264 encoding and provides powerful real-time image capture and image compression. It compresses and mixes input video, audio, and data into a 2M"
brief: "The E1-based audio and video terminal is an integrated intelligent audio and video terminal that compresses and mixes video, audio, and data into a single 2M PCM stream and sends it out through an E1 interface. It is developed by Beijing Ruiguang Jiyuan Digital Technology Co., Ltd. (Raytrans) for long-distance audio and video dispatching and transmission in remote video surveillance, video conferencing, and similar systems. The device uses a 19-inch 1U chassis, is designed for E1 transmission channels, and adopts H.264 encoding, providing real-time im..."
cover: /images/uploads/1791547129304_batch_banner_1791547141845.webp
coverAlt: "E1 Intelligent Audio and Video Terminal | Raytrans | SDH Equipment Manufacturer | Command and Dispatch System Manufacturer main product image"
publishDate: "2026-10-09"
slug: e1-transmission-audio-video-terminal
images:
- "/images/imports/img-3b1ae5d8.jpg"
specs:
Features: "E1-based audio and video terminal: integrated multi-function design, see product documentation for details"
Performance Specifications: "(Performance specifications are subject to product documentation; please supplement)"
tags: - "Audio and Video Dispatching"
- "Product Showcase"
- "E1 Audio and Video Terminal"
- "Private Network Video Transmission"
createdBy: admin
updatedBy: Administrator
updatedByAt: "2026-10-12T00:56:50.736Z"
updated: "2026-10-12"
What Kind of Device Is an E1 Transmission-Based Audio and Video Terminal?
An E1 transmission-based audio and video terminal is an integrated intelligent audio and video terminal that compresses and multiplexes video, audio, and data into a single 2M PCM stream and sends it out through an E1 interface. Developed by Beijing Ruiguang Jiyuan Digital Technology Co., Ltd. (Raytrans), it is used for long-distance audio and video dispatching and transmission in remote video surveillance, video conferencing, and other systems. The device uses a 19-inch 1U chassis, is designed around an E1 transmission channel, and adopts H.264 encoding, with instant image capture and image compression capabilities.
Key specifications at a glance: E1 interface · 2M PCM stream · H.264 encoding · 19-inch 1U chassis · three-in-one video, audio, and data · private network/SDH resource multiplexing
H.264 video encoding and compression is the key to squeezing live images into a single 2M channel: video, audio, and data are first compressed and multiplexed to form a 2M PCM stream, which is then handed to the transmission equipment through the E1 interface. This stream directly occupies an existing E1 channel, so no separate line needs to be laid for video, and the line resources of private networks and SDH networks are fully used.
Figure 1: Close-up of the front panel, indicator LEDs, and E1 interface of the E1 transmission-based audio and video terminal 19-inch 1U chassis
Why H.264 encoding must work with instant image capture
Instant image capture and image compression are two integrated steps. The device first captures live images, then compresses them with H.264 encoding, and the compressed data volume is multiplexed into the 2M stream together with audio and data. For bandwidth-constrained private network E1 channels, encoding efficiency determines the picture quality that the same E1 channel can carry, and also determines whether audio and video dispatching images remain clearly distinguishable under low-bandwidth conditions.
What deployment convenience does the 19-inch 1U chassis bring
The integrated design packs video capture, encoding and compression, multiplexing and framing, and the E1 interface into a single 1U intelligent audio and video terminal. The device can be pushed directly into a standard 19-inch rack, takes up no extra cabinet space, and eliminates the need to configure a separate encoder plus a separate multiplexer for video in the equipment room. For electric power and rail private network equipment rooms with distributed sites and tight cabinet space, one less device means one less point of failure and one less maintenance burden.
What do the three differentiated selling points mean on a private network site
Differentiated selling point | What it means on a private network site |
|---|---|
Direct 2M PCM stream transmission over an E1 channel, high private network/SDH resource utilization | Video, audio, and data are compressed into a 2M PCM stream that runs directly on an existing E1 channel, so private network and SDH resources need not be rebuilt and line utilization rises accordingly |
H.264 compression + instant image capture, clear video under low bandwidth | H.264 preserves image detail within a limited bit rate, and live images can still be compressed and sent back at 2M bandwidth, making it suitable for private network environments with fixed E1 channel bandwidth |
19-inch 1U chassis, integrated design, space-saving deployment | A single 1U device completes capture, compression, multiplexing, and E1 interface output, installs in a standard rack, and frees the equipment room from having to make extra space for video upgrades |
Functions and performance specifications
Function List
Function | Description |
|---|---|
Video capture and compression | Adopts H.264 encoding to capture and compress images instantly, reducing the bandwidth occupied per service |
Audio and video data hybrid multiplexing | Compresses and multiplexes input video, audio, and data to form a 2M PCM stream |
E1 interface long-distance transmission | Sends the 2M PCM stream to the transmission equipment through the E1 interface for long-distance transmission |
Private network/SDH resource multiplexing | Directly occupies an existing E1 channel to carry services, improving E1 line resource utilization in private network/SDH networks |
Integrated rack deployment | Integrated design in a 19-inch 1U chassis, standard rack installation, space-saving deployment |
Technical Specifications
Item | Parameter/Specification | Description/Applicable Conditions |
|---|---|---|
Chassis structure | 19-inch 1U chassis | Standard rack installation, integrated design |
Transmission channel | E1 transmission channel | Interfaces with transmission equipment through the E1 interface for long-distance transmission |
Video encoding format | H.264 | Instant image capture and image compression capabilities |
Multiplexed output stream | 2M PCM stream | Video, audio, and data are compressed and multiplexed before being sent out through the E1 interface |
E1 interface | 2048Kbps interface compliant with ITU-T G.703 | The interface format is subject to the manufacturer's technical documentation and commercial confirmation |
Services carried | Video, audio, data | Meets the needs of remote video surveillance, video conferencing, and other systems |
Line resource utilization | Improves E1 line resource utilization in private network/SDH networks | Existing private network/SDH resources need not be rebuilt |
Transmission distance, power supply, and environment | Not yet recorded in the knowledge base | Subject to the manufacturer's technical documentation and commercial confirmation |
Which scenarios suit E1 channel audio and video long-distance transmission
Electric power/energy private network
Substations and sites along transmission lines are distributed and far apart, and dispatch telephones and video surveillance run year-round on the electric power self-built E1/SDH private network. The E1 transmission-based audio and video terminal compresses on-site video, audio, and data into a 2M PCM stream that directly occupies an existing E1 channel for backhaul, with no need to lay new lines for video, so private network resource utilization rises accordingly. On the equipment room side, it can be rack-mounted as long as a standard 19-inch rack has 1U of free space, and the upgrade is concentrated on the terminal side. As a professional SDH equipment manufacturer and command and dispatch system manufacturer, Raytrans can provide electric power private networks with an overall solution from transmission to audio and video dispatching.
Rail transit private network
Rail transit platforms, depots, and sections along the line require stable and available communication means, and E1 transmission channels have often already been built along the railway. The E1-based audio and video terminal uses H.264 compression to compress on-site video from platforms and sections into a 2M stream, which is sent back to the control center over existing E1 channels, keeping the picture clearly identifiable even at low bandwidth. The 1U chassis is suitable for rack-mounted deployment in station equipment rooms and communications equipment rooms. Video conferencing and platform surveillance can share the same E1 resources, enabling efficient audio and video dispatching and product showcase.
Military/Government Private Network
Military and government private networks usually build their own E1/SDH transmission systems, with line resources allocated as required and manageable and controllable. The 19-inch 1U chassis integrated intelligent audio and video terminal connects to the E1 private network with plug-and-play transmission, compressing on-site video, audio, and data into a single 2M PCM stream. Without changing the existing structure of the private network, it can deliver video services to remote command posts for remote video surveillance and video conferencing. The terminal can be used once rack-mounted, making it suitable for rapid deployment in military emergency communications vehicle solutions, command posts, and fixed sites. In government private network optical fiber communication solutions, it can likewise serve as an audio and video access node on E1/SDH channels, working in coordination with platforms from command and dispatch system manufacturers.
Selection and Deployment Recommendations
Before deciding whether to use an E1-based audio and video terminal, confirm four things.
Whether there are available E1 channels or SDH private network resources on site: if yes, use the E1-based audio and video terminal to make full use of existing channels, with exclusive transmission resources and stable performance; if there is only an IP link and no E1 resources, choose an IP-based audio and video intercom terminal instead.
Whether there is enough cabinet space: the device is a 19-inch 1U chassis, occupying 1U of height in a standard rack. Before rack-mounting, confirm that the cabinet has 1U of free space and a power supply position.
Whether voice and data need to be transmitted simultaneously: the device compresses and mixes video, audio, and data into a single 2M stream, with all three service types carried over the same E1 channel, and cabling configured only for the E1 interface.
Items to confirm before purchase: the E1 interface format, power supply mode, operating temperature, and ingress protection (IP) rating are not given in this documentation. Please refer to the manufacturer's technical documentation and commercial confirmation.
Conclusion
The E1-based audio and video terminal compresses video, audio, and data into a single 2M PCM stream, directly multiplexing existing private network/SDH channels through the E1 interface. The 19-inch 1U chassis integrated design also allows equipment room deployment to occupy only one rack unit. For users of electric power and energy private networks, rail transit private networks, and military/government private networks, the value of such intelligent audio and video terminals lies in making full use of existing E1 line resources to carry remote video surveillance and video conferencing, without building a new transmission network for video services. Raytrans, as an SDH equipment manufacturer and command and dispatch system manufacturer, can provide overall product and solution support from E1/SDH transmission to audio and video dispatching for requirements such as government private network optical fiber communication solutions and military emergency communications vehicle solutions.