IDM-VDA4200 Series Single-Fiber 4-Video Optical Multiplexer
4-channel video, 4-channel data, 2-channel audio and 2-channel Ethernet over a single fiber — saving coaxial cable, aggregation and wiring
The 4-channel video 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 4-channel unidirectional video, 4-channel data, 1-channel bidirectional audio and 2-channel Ethernet over a single optical fiber, meeting various user requirements. Adopting the internationally advanced all-digital uncompressed video technology, it transmits two channels of video and multiple channels of bidirectional data synchronously in real time over the optical fiber with no distortion and high quality. Its high-quality video performance and bidirectional data transmission can meet various user requirements. The plug-and-play design makes installation simple and easy, with no on-site adjustment required. Its optical module and core electrical
The IDM-VDA4200 series (including IDM-VDA4200, IDM-VDA4020, and IDM-VDA4420) single-fiber four-video optical multiplexer is a compact multi-service signal optical fiber transmission device developed by Beijing Ruiguang Jiyuan Digital Technology Co., Ltd. for the security surveillance market. As a professional optical multiplexer manufacturer, Raytrans uses this video optical multiplexer to aggregate 4-channel unidirectional video from front-end cameras together with data, bidirectional audio, and Ethernet services onto a single optical fiber for real-time synchronous transmission, providing reliable product support for security surveillance optical fiber transmission solutions. 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; 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 for high stability, and all optical and electrical interfaces comply with international standards, making the device suitable for different operating environments. This multi-service optical multiplexer can also serve scenarios such as government private network optical fiber communication solutions, meeting diverse networking requirements with stable optical multiplexer performance.
Key Specifications at a Glance: 4-channel unidirectional video · 4-channel data · 2-channel bidirectional audio · 2-channel Ethernet · single-mode fiber (multi-mode optional) · FC optical port (SC customizable) · 20Km transmission · overall power consumption ≤6W
What Kind of Device Is a Single-Fiber Four-Video Optical Multiplexer?
The IDM-VDA4200 series single-fiber four-video optical multiplexer is an optical fiber transmission access device between surveillance sites and the surveillance center, used in pairs as a transmitter and a receiver to send 4-channel camera video signals together with on-site data and bidirectional audio signals to the remote end for restoration and output. It can simultaneously carry 4-channel unidirectional video, 4-channel data, 2-channel bidirectional audio, and 2-channel Ethernet services over a single optical fiber. As a typical multi-service optical multiplexer, it integrates multiple service access capabilities including video, audio, data, and Ethernet on a single platform, fully demonstrating Raytrans's technical strength in product showcase and function integration.
Traditional surveillance sites use coaxial cables 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 with distance. The IDM-VDA4200 series single-fiber four-video optical multiplexer digitizes video signals and transmits them over the optical fiber, with a standard configuration transmission distance of 20Km and an optional long-distance optical module for even longer optical fiber transmission. It is free from electromagnetic interference (EMI) and radio frequency interference (RFI), making it suitable for security surveillance projects with concentrated surveillance sites and a large number of cameras at a single point. This optical multiplexer is widely used in security surveillance optical fiber transmission solutions and is also often integrated into government private network optical fiber communication solutions as a reliable transmission node at the front-end access layer.
Figure 1: Front view of the IDM-VDA4200 series single-fiber four-video optical multiplexer main unit and close-up of the 4-channel BNC video interfaces
Where Does the Differentiated Value of Single-Fiber Four-Video Lie?
The differentiated value of the IDM-VDA4200 series single-fiber four-video optical multiplexer is concentrated in three verifiable aspects: fiber utilization, picture quality, and on-site environmental adaptability.
Differentiated Value | Practical Significance for Customers |
|---|---|
Single fiber carries 4-channel video + 4-channel data + 2-channel audio + 2-channel Ethernet, multi-service over a single fiber | A single optical fiber simultaneously replaces multiple coaxial video cables and data cables, reducing optical cable, patch panel, and cable trunking usage and eliminating the aggregation equipment separately added for Ethernet, so the cabling cost and construction workload of single-point access for security integrators decrease simultaneously |
Video SNR ≥70dB, 8bit sampling, broadcast-grade uncompressed transmission | 8bit sampling with direct uncompressed transmission within the 0Hz~6.5MHz bandwidth; the link introduces no processing latency caused by compression algorithms, so real-time monitoring and post-event playback at the surveillance center show consistent picture quality |
Industrial-grade -40℃~+85℃ wide temperature, multiple lightning and surge protection on ports | Outdoor enclosures, pole-side cabinets, and unattended sites can operate continuously under high summer temperatures and severe winter cold; multiple lightning and surge protection on ports reduces port damage and repair caused by lightning strikes |
What Functions Does the IDM-VDA4200 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 4-channel video transmitted synchronously without compression |
Audio quality | Audio quality reaches CD-grade standards, with an audio sampling bit width of 16bit and a sampling frequency of 32KHz |
Multi-format compatibility | Compatible with video formats such as PAL, NTSC, and SECAM |
Port protection | SMT surface mount technology, with multiple lightning and surge protection on ports |
Lossless regenerative repeater | Supports video lossless regenerative repeater, free from electromagnetic interference (EMI) and radio frequency interference (RFI) |
Transparent transmission of data | Transparent data encoding method, compatible with the products of major camera manufacturers |
Adaptive, adjustment-free | Adopts adaptive technology, requiring no on-site electrical or optical adjustment during use |
Structural design | Compact design with a small structure for 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 optical fiber transmission over a longer distance |
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 |
Ethernet and data interface parameters
Item | Parameter/Specification | Description/Applicable Conditions |
|---|---|---|
Data interface type | RJ-45 | Data channel interface |
Data type | RS-232, RS422 (4-wire), RS485 (2-wire) | Can interconnect with control and acquisition devices |
Ethernet interface type | RJ-45 | Ethernet channel interface |
Ethernet transmission rate | 10M/100M adaptive | Supports IEEE802.3 |
Ethernet operating mode | Full/half duplex/adaptive | Adaptive negotiation according to the opposite-end device |
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 | Overall operating power consumption |
Operating temperature | -15℃ ~ +65℃ | Operating temperature range of the standard model |
Storage temperature | -25℃ ~ +75℃ | Storage environment temperature range |
Industrial-grade temperature | -40℃ ~ +85℃ | Temperature range of the industrial-grade model |
Relative humidity | 0~95% (non-condensing) | Operating environment humidity |
Product dimensions | 240×138×30(mm) | Length×Depth×Height |
4-Channel Video Optical Multiplexer Selection: How to Choose Between IDM-VDA4200, IDM-VDA4020 and IDM-VDA4420?
No. | Model | Service Configuration | Description |
|---|---|---|---|
1 | IDM-VDA4200 | 4-channel unidirectional video, 2-channel data | In addition to 4-channel surveillance video, 2 channels of control/collection data need to be sent back |
2 | IDM-VDA4020 | 4-channel unidirectional video, 2-channel bidirectional audio | 4-channel surveillance video plus two-way voice intercom with the site |
3 | IDM-VDA4420 | 4-channel unidirectional video, 4-channel data, 2-channel bidirectional audio | Requires 4-channel data with 2-channel bidirectional audio, a more complete channel configuration |
The approach to selecting a 4-channel video optical multiplexer is to first count the service channels at the site: if you only need to send 4 channels of video back to the surveillance center with 2 channels of data, choose the IDM-VDA4200; if two-way announcement and intercom are required between the surveillance center and the site, choose the IDM-VDA4020 with 2-channel bidirectional audio; if you need both data channels and bidirectional audio, choose the IDM-VDA4420. The three models have identical video specifications and optical interface parameters, and differ only in the number of service channels configured; during selection, you also need to confirm the fiber mode (single-mode or multi-mode), transmission distance and optical port type, and for long-distance links it is recommended to calculate according to the optical power budget before deciding on the optical module. As a professional optical multiplexer manufacturer, Raytrans can provide complete product showcase and selection support.
What Are the Application Scenarios of a Video Optical Multiplexer?
Safe City and Industrial Park Security Surveillance
In Safe City, surveillance sites, industrial park entrances, perimeter walls, underground garages and other locations have a large number of cameras, often hundreds of meters to several kilometers away from the surveillance center, and it is difficult to lay new coaxial cables between buildings. The IDM-VDA4200 series single-fiber four-video optical multiplexer aggregates 4 channels of video and data services onto one existing or newly laid single-mode fiber, and the receiver directly outputs BNC video to a DVR, NVR or monitor, replacing the long-distance coaxial cable solution and avoiding picture streaking and distortion caused by ground potential difference and electromagnetic interference; one site can cover 4 surveillance views of an entrance or a section of perimeter, and SNMP network management allows integrators to see the status of remote devices from the equipment room, reducing on-site visits for inspection. This solution is a typical application of a security surveillance optical fiber transmission solution.
Electric Power and Rail Transit Industrial Private Networks
Substations, distribution rooms, rail transit lines and platforms have a strong electromagnetic environment, the distance between cameras and the main control room is long, the requirement for insulation and isolation is high, and the equipment must also withstand outdoor temperature differences over the long term. The IDM-VDA4200 series single-fiber four-video optical multiplexer uses optical fiber as the transmission medium, with electrical isolation between the transmitter and the receiver, which avoids the interference of a strong electromagnetic environment on video signals; the operating temperature range of the industrial-grade wide-temperature model is -40℃ ~ +85℃, and multiple lightning and surge protection on ports plus SMT surface mount technology improve long-term operation stability, making it suitable for industrial private network sites such as electric power and rail transit, and also for the deployment needs of a government private network optical fiber communication solution.
Unattended Field Sites
Field pumping stations, oil pipeline valve chambers, and unattended mining and water conservancy sites usually have no duty personnel, the distance from the site to the surveillance center can reach 20Km, and power supply conditions vary. The IDM-VDA4200 series single-fiber four-video optical multiplexer supports two power supply modes, AC220V and DC-48V, with overall power consumption ≤6W, and can directly use the existing DC power supply at the site; within a 20Km transmission distance, only one single-mode fiber is needed to send back 4 channels of video and data and bidirectional audio to the center, SNMP network management supports remote online monitoring, and adaptive technology enables the site to enable services without on-site electrical or optical adjustment.
Figure 2: Point-to-point networking diagram of a 4-channel video optical multiplexer for security surveillance, with 4 cameras at the front end sent back to the surveillance center over a single optical fiber
Optical Port Type and Transmission Distance of a Video Optical Multiplexer
The optical interface of the IDM-VDA4200 series single-fiber four-video optical multiplexer is the standard FC type, and interfaces such as SC can be customized according to project requirements, with single-mode as the default fiber mode and multi-mode optional. The standard configuration provides a transmission distance of 20Km, the 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 and the loss of splice points and connectors.
If the site exceeds 20Km, a long-distance optical module can be installed to achieve optical fiber transmission over a longer distance. During project selection, the optical power should be calculated section by section according to the actual optical cable length, cable attenuation coefficient, and splicing and connector loss, with aging and maintenance margin reserved; multimode fiber and single-mode fiber have different attenuation characteristics and must be matched with the optical module type before the transmission distance is determined.
What Video Formats Does a Video Optical Multiplexer Support?
The IDM-VDA4200 series single-fiber four-video optical multiplexer is compatible with video formats such as PAL, NTSC and SECAM, and the video channel is input and output through a BNC interface, with an input/output impedance of 75Ω (unbalanced) and an input/output voltage of 1VP-P (typical value), and can be directly connected to conventional analog cameras, DVRs, NVRs and monitors without an additional format conversion device.
The device uses a transparent data encoding method and is compatible with the products of major camera manufacturers; the all-digital uncompressed transmission link contains no encoding and decoding stage, and the synchronization relationship between video and data remains consistent in the link, making it convenient for the surveillance center to send data such as PTZ control and alarm collection while viewing the picture.
Conclusion
The IDM-VDA4200 series single-fiber four-video optical multiplexer concentrates 4-channel unidirectional video and data, bidirectional audio, and Ethernet services onto a single optical fiber for transmission, uses all-digital uncompressed video technology to ensure broadcast-grade picture quality, provides a standard configuration of 20Km transmission with overall power consumption ≤6W, and adapts to many types of sites such as industrial parks, roads, electric power, rail transit and field sites with industrial-grade wide temperature and port protection capabilities. When selecting a 4-channel video optical multiplexer for security surveillance and industrial private network projects, you can choose the corresponding model among the IDM-VDA4200, IDM-VDA4020 and IDM-VDA4420 according to the number of service channels at the site, the optical cable type and the transmission distance. As a professional optical multiplexer manufacturer, Raytrans continues to provide reliable multi-service optical multiplexer products and video optical multiplexer solutions for various security surveillance optical fiber transmission solutions and government private network optical fiber communication solutions.
