IDM-VDA2000, IDM-VDA2100, IDM-VDA2210 2-Channel Video Optical Multiplexer
Single fiber, four video channels, SNMP network management, 20 km transmission distance
The 2-channel video series optical multiplexer is a compact multi-service signal optical fiber transmission product tailored by our company for the security surveillance market. It can transmit up to 2 unidirectional video channels, 2 data channels, 1 bidirectional audio channel, and 2 Ethernet channels over a single optical fiber, meeting user requirements. It adopts the internationally advanced all-digital uncompressed video technology to transmit two video channels and multiple data channels synchronously in real time over the optical fiber with no distortion and high quality, and its high-quality video performance meets user requirements. The plug-and-play design makes installation simple and easy, with no on-site adjustment required. Its optical module and core circuits use standard components, ensuring high stability.
The IDM-VDA2000 series (including IDM-VDA2000, IDM-VDA2100, and IDM-VDA2210) 2-channel video optical multiplexer is a single-fiber four-service video optical multiplexer developed by Beijing Ruiguang Jiyuan Digital Technology Co., Ltd. (Raytrans) for the security surveillance market. As a representative product showcase from a professional optical multiplexer manufacturer, this optical multiplexer aggregates 2 channels of unidirectional video from front-end cameras together with data, audio, and Ethernet services onto a single optical fiber for real-time synchronous transmission. The device adopts all-digital uncompressed video technology, sampling video signals into digital signals for direct transmission over the optical fiber and distortion-free restoration at the remote end, so the video quality meets the viewing and recording requirements of a surveillance center. The plug-and-play design makes installation simple and easy, with no on-site adjustment required. The optical module and core circuits use standard components, and the optical and electrical interfaces comply with international standards, making the device suitable for different operating environments. This video optical multiplexer can be flexibly applied to government private network optical fiber communication solutions and security surveillance optical fiber transmission solutions, and is also often used as a multi-service optical multiplexer to meet composite transmission requirements for multiple services.
Key specifications at a glance: 2-channel unidirectional video · 2-channel data · 1-channel bidirectional audio · 2-channel Ethernet · single-mode fiber (multi-mode optional) · FC optical port (SC customizable) · transmission distance 20 Km · industrial-grade wide temperature -40℃~+85℃ · SNMP network management supported · overall power consumption ≤6 W
What Kind of Device Is a Single-Fiber Four-Service Video Optical Multiplexer?
The IDM-VDA2000 series single-fiber four-service video optical multiplexer is an optical fiber transmission access device between surveillance sites and the surveillance center. It is used in pairs at the transmitter and receiver, sending 2 channels of video signals from cameras together with on-site data and audio signals to the remote end for restoration and output. It is a compact service access device for point-to-point networking, and is one of the product showcases that Raytrans offers for security surveillance optical fiber transmission solutions.
Traditional surveillance sites use coaxial cable to transmit video. Once the distance exceeds a few hundred meters, a repeater amplifier must be added, and the signal is also susceptible to electromagnetic interference and ground potential difference, with picture quality degrading over distance. The IDM-VDA2000 series video optical multiplexer digitizes video signals and transmits them over optical fiber. The standard configuration reaches a transmission distance of 20 Km, and a long-distance optical module can be optionally installed for longer-distance optical fiber transmission. At the same time, it is free from electromagnetic interference (EMI) and radio frequency interference (RFI), making it suitable for security surveillance projects with scattered sites and long distances.
Figure 1: IDM-VDA2000 2-channel video optical multiplexer main unit and BNC video interface appearance
Where Does Carrying 2 Channels of Video, Data, Audio, and Ethernet over a Single Optical Fiber Save?
The IDM-VDA2000 series 2-channel video optical multiplexer can carry 2 channels of unidirectional video, 2 channels of data, 1 channel of bidirectional audio, and 2 channels of Ethernet over a single optical fiber, aggregating services that would otherwise require multiple optical fibers and multiple devices onto one optical fiber link, directly saving optical fiber resources and the number of supporting devices in a private network. As a multi-service optical multiplexer, it concentrates video, data, audio, and Ethernet services onto a single link, which is also the product showcase form that the optical multiplexer manufacturer Raytrans promotes in government private network optical fiber communication solutions and security surveillance optical fiber transmission solutions.
For security surveillance and industrial private network projects, optical fiber resource constraints usually appear in two places: first, the existing trunk optical cable cores between industrial parks and plants are limited, and new sites require re-splicing or leasing of fiber cores; second, the access section of an unattended site often has only one optical cable available for laying. The IDM-VDA2000 series multi-service optical multiplexer multiplexes video, control data, voice, and Ethernet services over a single optical fiber for synchronous transmission. In engineering terms, the model can be selected according to the service volume at each site, with no need to lay separate cables for each type of service.
The 2 channels of Ethernet here are the descriptive convention for the series service configuration; the specific channel configuration is subject to the manufacturer's technical documentation and commercial confirmation. The technical specifications table lists the parameters for optical interfaces, video, audio, data, and power supply and environment.
Differentiation Points of the IDM-VDA2000 Series
Differentiation Point | Specific Capability | Value to the Project |
|---|---|---|
Single-fiber four-service | Single fiber carries 2-channel video + 2-channel data + bidirectional audio + 2-channel Ethernet; multi-service over a single fiber saves optical fiber | Saves optical fiber resources in a private network and reduces stacked devices and cable laying |
Industrial-grade wide temperature | Industrial-grade -40~+85℃ wide temperature, 0~95% non-condensing humidity, suitable for unattended outdoor sites | Suitable for installation environments with large temperature differences such as outdoor pole positions and unattended cabinets |
SNMP network management | SNMP network management for real-time online monitoring, 20 Km single-mode transmission, supports long-distance optical module expansion | Device status can be monitored remotely in real time, reducing attendance on site for inspection |
20 Km single-mode | 20 Km single-mode transmission, with an optional long-distance optical module for longer-distance optical fiber transmission | Covers conventional links between stations and from plants to the center; over-distance links can be extended by changing the optical module |
How Does All-Digital Uncompressed Video Technology Guarantee Picture Quality?
The IDM-VDA2000 series 2-channel video optical multiplexer adopts all-digital uncompressed video technology: the transmitter samples video signals at an 8-bit sampling bit width and a 0 Hz~6.5 MHz video bandwidth, transmits them directly over the optical fiber without compression encoding, and the receiver restores them distortion-free as analog video output. The device achieves a video SNR of ≥70 dB (weighted), luminance non-linearity <3%, differential phase (DP) <0.7°, and differential gain (DG) <0.7%. Video quality reaches broadcast-grade standards, and audio quality reaches CD-grade standards.
Because video signals do not pass through an encoding and decoding stage, the link introduces no processing latency or stream jitter caused by compression algorithms, and the synchronization between video and data is maintained. This is critical in scenarios where the surveillance center watches the picture and operates on-site devices at the same time. The IDM-VDA2000 series 2-channel video optical multiplexer is compatible with video formats such as PAL, NTSC, and SECAM, and can transparently interface with the products of major camera manufacturers.
What Functions Does the IDM-VDA2000 Series Provide?
Function | Description |
|---|---|
SNMP network management | Supports SNMP network management for real-time online monitoring of device operating status |
Video quality | Video quality reaches broadcast-grade standards, with 2 channels of video transmitted synchronously without compression |
Audio quality | Audio quality reaches CD-grade standards, with an audio sampling bit width of 16 bit and a sampling frequency of 32 KHz |
Multi-format compatibility | Compatible with video formats such as PAL, NTSC, and SECAM |
Process and protection | SMT surface mount technology, with multiple protection against lightning and surge on ports |
Regenerative repeater | Supports video lossless regenerative repeater, free from electromagnetic interference (EMI) and radio frequency interference (RFI) |
Transparent transmission of data | Transparent data encoding, compatible with the products of major camera manufacturers |
Adaptive, adjustment-free | Adaptive technology; no on-site electrical or optical adjustment is required during use |
Structural design | Compact design, small structure, flexible and convenient installation |
Technical Specifications
Optical Interface Parameters
Item | Parameter/Specification | Description/Applicable Conditions |
|---|---|---|
Interface type | FC (SC and others can be customized) | Optical port connector type |
Fiber mode | Single-mode (multi-mode optional) | Optional according to the on-site optical cable type |
Receiver receive/transmit rate | 1.25G bps / 84M bps | Receive/transmit rate at the receiver |
Receiver receive/transmit wavelength | 1310nm / 1550nm | Receive/transmit wavelength at the receiver |
Transmitter receive/transmit rate | 84M bps / 1.25G bps | Receive/transmit rate at the transmitter |
Transmitter receive/transmit wavelength | 1550nm / 1310nm | Receive/transmit wavelength at the transmitter |
Transmit optical power | -12~-7dBm | Output optical power at the transmitter |
Receiver sensitivity | Better than -21dBm (1310nm) | Lower limit of optical power for normal reception at the receiver |
Transmission distance | 20Km | A long-distance optical module can be installed for longer-distance optical fiber transmission |
Video Interface Parameters
Item | Parameter/Specification | Description/Applicable Conditions |
|---|---|---|
Interface type | BNC | Analog video input/output |
Luminance non-linearity | <3% | Video channel linearity |
Video sampling bit width | 8bit | Digital sampling precision |
Video bandwidth | 0Hz~6.5MHz | Meets the baseband bandwidth of standard definition (SD) video |
Differential phase (DP) | <0.7° | Phase distortion specification of the chrominance signal |
Differential gain (DG) | <0.7% | Amplitude distortion specification of the chrominance signal |
Input overload voltage | 1.5VP-P (typical) | Non-saturation voltage at the input |
Input/output voltage | 1VP-P (typical) | Standard video signal level |
Input/output impedance | 75Ω (unbalanced) | Impedance matching with conventional video equipment |
Video SNR | ≥70dB (weighted) | Weighted measurement specification |
High-Fidelity Audio Parameters
Item | Parameter/Specification | Description/Applicable Conditions |
|---|---|---|
Interface type | RJ45 | Audio channel interface |
Audio sampling bit width | 16bit | Digital sampling precision |
Input/output impedance | ADC:100KΩ / DAC:10KΩ | Input/output impedance |
Input/output voltage | 1.5VP-P (typical) | Audio signal level |
Audio sampling frequency | 32KHz | Sampling rate |
Audio SNR | ≥90dB | Audio channel SNR |
Audio bandwidth | 20Hz~20KHz | Covers the audible frequency band of the human ear |
Total harmonic distortion | <1% | Audio channel distortion specification |
Data Interface Parameters
Item | Parameter/Specification | Description/Applicable Conditions |
|---|---|---|
Interface type | RJ-45 | Data channel interface |
Data type | RS-232, RS422 (4-wire), RS485 (2-wire) | Can interface with control and acquisition devices |
The data port of the 2-channel video optical multiplexer is of the RJ-45 type and supports three data types: RS-232, RS422 (4-wire) and RS485 (2-wire). It can interface with common industrial control devices such as PTZ control, alarm collection and sensor acquisition devices, and adopts a transparent data encoding method.
Power Supply, Power Consumption and Environmental Conditions
Item | Parameter/Specification | Description/Applicable Conditions |
|---|---|---|
Power supply mode | AC220V / DC-48V | Optional according to equipment room and on-site power supply conditions |
Overall power consumption | ≤6W | Power consumption during operation of the unit |
Operating temperature | -15℃ ~ +65℃ | Standard operating temperature range |
Storage temperature | -25℃ ~ +75℃ | Storage environment temperature range |
Industrial-grade temperature | -40℃ ~ +85℃ | Temperature range of industrial-grade models |
Relative humidity | 0~95% (non-condensing) | Operating environment humidity |
Product dimensions | 144×138×30(mm) | Length×Depth×Height |
Model Selection: How to Choose Between IDM-VDA2000, IDM-VDA2100 and IDM-VDA2210?
No. | Model | Service Configuration | Application Note |
|---|---|---|---|
1 | IDM-VDA2000 | 2-channel unidirectional video | Only 2 channels of surveillance video need to be sent back to the surveillance center |
2 | IDM-VDA2100 | 2-channel unidirectional video, 1-channel data | 1 channel of control/acquisition data is required in addition to surveillance video |
3 | IDM-VDA2210 | 2-channel unidirectional video, 2-channel data, 1-channel bidirectional audio | 2 channels of data are required, with on-site two-way voice intercom |
To select a 2-channel video optical multiplexer, first count the services at the site: if only video is needed, choose IDM-VDA2000; if one channel of data such as PTZ control or alarm collection needs to be sent back, choose IDM-VDA2100; if two-way announcement and intercom between the surveillance center and the site is needed, choose IDM-VDA2210 with 1-channel bidirectional audio. Selection also requires confirming the optical fiber type (single-mode or multi-mode), transmission distance and optical port type. For long-distance links, it is recommended to calculate according to the optical power budget before deciding on the optical module. The specific configuration is subject to the optical multiplexer manufacturer's technical documentation and commercial confirmation.
Typical Application Scenarios
Project Delivery by Security Surveillance System Integrators
During project delivery, security surveillance system integrators care more about commissioning workload and site adaptability. The IDM-VDA2000 series 2-channel video optical multiplexer adopts an adaptive, adjustment-free design: plug-and-play, with no on-site electrical or optical adjustment required. Connect the video cable, data cable, audio cable and optical fiber, then power on and it works. The device is compatible with video formats such as PAL, NTSC and SECAM, and compatible with the products of major camera manufacturers, so the optical multiplexer need not be replaced when the front-end camera brand changes. The unit measures 144×138×30 (mm) with power consumption ≤6W, making it easy to install in a site enclosure, and it supports AC220V or DC-48V power supply. Such a product showcase solution offers high cost performance and deployment efficiency in security surveillance optical fiber transmission solutions.
Industrial Automation Private Network
Cameras and control devices at production sites such as plants, mining areas and ports are often distributed in strong electromagnetic environments, where variable-frequency drives, high-power motors and welding equipment interfere with analog video signals. The IDM-VDA2000 series 2-channel video optical multiplexer uses optical fiber as the transmission medium, supports video lossless regenerative repeater, is free from electromagnetic interference (EMI) and radio frequency interference (RFI), and provides electrical isolation between the transmitter and the receiver. The RJ-45 data port supports RS-232, RS422 (4-wire) and RS485 (2-wire), and can interconnect with PLCs, PTZ controllers and acquisition terminals. Video and production data are transmitted over a single optical fiber, making site capacity expansion within an existing industrial private network easy. For multi-service optical multiplexer application scenarios that need to carry video, data and audio simultaneously, this series also offers good adaptation capability.
Unattended Sites in the Field
Sites such as expressways, railway lines, pipeline valve chambers, substations and distribution rooms are usually unattended. The temperature inside pole-mounted cabinets and site enclosures varies greatly with season and sunlight, and the cost of a single attendance on site by O&M personnel is high. The IDM-VDA2000 series 2-channel video optical multiplexer provides an industrial-grade temperature range of -40℃+85℃ and humidity adaptability of 095% (non-condensing), and an industrial-grade model can be selected according to the site environment. It supports SNMP network management, so the operating status of site devices can be monitored remotely in real time on the network management side; when an abnormality occurs, remote diagnosis is performed first before arranging attendance on site. From the site to the surveillance center, a single-mode fiber with the standard 20Km configuration covers the conventional inter-station distance, reducing the number of optical cables and devices along the line. As a professional optical multiplexer manufacturer, Raytrans can provide reliable optical multiplexer products and technical support for government private network optical fiber communication solutions and unattended field scenarios.
Video Optical Multiplexer Transmission Distance Is 20Km — How to Extend Beyond That?
The 20Km transmission distance of the video optical multiplexer is the standard configuration of this series. The transmitter's transmit optical power is -12~-7dBm, and the receiver sensitivity is better than -21dBm (1310nm). The difference between the two is the available optical power margin of the link, used to compensate for the attenuation of the optical fiber itself, splice points and connector loss.
If the site is more than 20Km away, a long-distance optical module can be installed to achieve longer-distance optical fiber transmission. During project selection, the optical power should be calculated section by section according to the actual optical cable length, optical cable attenuation coefficient, splicing and connector loss, with aging and maintenance margin reserved. Multimode fiber and single-mode fiber have different attenuation characteristics, so the transmission distance should be determined after matching with the optical module type. Raytrans video optical multiplexers can be flexibly configured with different optical modules in long-distance links, meeting the long-distance transmission requirements of government private network optical fiber communication solutions and security surveillance optical fiber transmission solutions.
How Is a Single-Fiber Four-Service Video Optical Multiplexer Networked and Wired?
The IDM-VDA2000 series single-fiber four-service video optical multiplexer adopts point-to-point networking: the site end is the transmitter and the surveillance center end is the receiver. The two ends are connected by a single optical fiber, and video, data and audio services are transmitted synchronously over the same optical fiber. As a mature product of a professional optical multiplexer manufacturer, this series of video optical multiplexers has extensive product showcase and engineering applications in the multi-service optical multiplexer field.
Stage | Connection | Description |
|---|---|---|
Video input | Camera video output BNC → transmitter video input | Input impedance 75Ω (unbalanced), input voltage 1VP-P (typical value) |
Video output | Receiver video output BNC → DVR/NVR/monitor | The receiver restores the analog video signal |
Data port | Transmitter/receiver RJ-45 data port ↔ control or acquisition device | RS-232, RS422 (4-wire), RS485 (2-wire) |
Audio port | Transmitter/receiver RJ45 audio port ↔ intercom terminal | 1-channel bidirectional audio, supporting two-way call between the site and the center |
Optical port | Transmitter optical port ↔ receiver optical port, connected by single-mode fiber | FC interface (SC and others can be customized), transmission distance 20Km |
Power supply | AC220V or DC-48V | Overall power consumption ≤6W, no on-site electrical or optical adjustment required |
Figure 2: Wiring diagram for point-to-point networking of a single-fiber four-service video optical multiplexer in security surveillance
Conclusion
The IDM-VDA2000 series single-fiber four-service video optical multiplexer concentrates 2-channel unidirectional video with data, audio and Ethernet services onto a single optical fiber for transmission. It uses all-digital uncompressed video technology to ensure broadcast-grade picture quality, and adapts to unattended sites and industrial private network sites with three capabilities: industrial-grade wide temperature -40℃~+85℃, 20Km single-mode transmission and SNMP network management. Its overall power consumption is ≤6W and its dimensions are 144×138×30 (mm), making it easy to install in a nearby site enclosure. As a professional optical multiplexer manufacturer, Raytrans offers this series of multi-service optical multiplexers for flexible application in government private network optical fiber communication solutions and security surveillance optical fiber transmission solutions. When selecting a 2-channel video optical multiplexer for security surveillance and industrial private network projects, the corresponding model can be chosen from IDM-VDA2000, IDM-VDA2100 and IDM-VDA2210 according to the number of service channels at the site, the optical cable type and the transmission distance.
