IDM-Video Centralized Video Optical Multiplexer
5U with 15 cards, 8-channel video per card with data, audio, and Ethernet, star networking, fault isolation
The IDM-Video centralized video optical multiplexer adopts advanced all-digital uncompressed video transmission technology for high-quality video transmission results. According to user requirements, the device's user cards can be optionally configured as 1-channel video cards, 2-channel video cards, or 4-channel video cards
IDM-Video 15-user-card centralized video optical multiplexer is a rack-mounted centralized video optical transmission device developed by Beijing Ruiguang Jiyuan Digital Technology Co., Ltd. It belongs to the centralized video optical multiplexer in Raytrans's optical multiplexer product line, adopts all-digital uncompressed video transmission technology, and consists of a 19-inch 5U standard chassis, service user cards, a network management card, and power cards. It is used to aggregate video, audio, data, and Ethernet services scattered across multiple remote stations to the central end and restore the output, and is widely applicable to product showcases for scenarios such as government private network optical fiber communication solutions.
The 15-user-card centralized video optical multiplexer configures service capacity in a card-based manner. User cards can be 1-channel video cards, 2-channel video cards, 4-channel video cards, or 8-channel video cards. In full configuration, it holds 15 user cards, 1 network management card, and 2 power cards, where a user card can provide 8-channel unidirectional video, 4-channel data, 4-channel bidirectional audio, and 2-channel Ethernet. As a professional optical multiplexer manufacturer, Raytrans has achieved multi-service converged access of video, audio, data, and Ethernet on this multi-service optical multiplexer platform.
Key Specifications at a Glance: 19-inch 5U standard chassis · 15 user cards in full configuration · 8-channel unidirectional video per card · dual mutual-backup power supplies · 5U star networking · broadcast-grade video quality · CD-grade audio quality · online network management monitoring
Figure 1: IDM-Video 15-user-card centralized video optical multiplexer 5U chassis front view and user card slots
What Kind of Device Is a 15-User-Card Centralized Video Optical Multiplexer? Centralized Access Positioning and Uncompressed Principle
The 15-user-card centralized video optical multiplexer is a card-based aggregation device at the surveillance center side. Its positioning is not to replace the point-to-point optical multiplexer beside a camera, but to aggregate video and supporting services scattered across multiple remote stations onto one 5U chassis for access, multiplexing, and output. As a product showcase for government private network optical fiber communication solutions, its core value lies in centralized access rather than point-to-point extension.
All-digital uncompressed video transmission technology is the core of this link: after the video signal enters the device, A/D sampling is completed, and a digital stream is formed and sent onto the optical path without compression encoding. At the central end, it is restored to video output through D/A conversion. There is no encoding and decoding stage in the middle of the link, so the picture does not suffer compression damage, nor does it introduce processing latency caused by encoding and decoding algorithms.
The IDM-Video 15-user-card centralized video optical multiplexer is compatible with video formats such as PAL, NTSC, and SECAM. Video quality can reach broadcast-grade standards, and audio quality can reach CD-grade standards. The transmission section features automatic gain control (AGC), maintaining stable video signal amplitude over long-distance links. The transparent data encoding method makes it compatible with the products of major camera manufacturers.
The product documentation for the IDM-Video centralized video optical multiplexer does not list the optical interface type, optical power budget, or single-segment transmission distance. This page makes no inference; actual engineering should be calculated according to the optical module and optical fiber link selected for the project, and specific values are subject to the manufacturer's technical documentation and commercial confirmation.
What Services Does a Single 8-Channel Video Card of a Centralized Video Optical Multiplexer Carry?
What services a single 8-channel video card of a centralized video optical multiplexer carries depends on the type of user card inserted into the chassis: a single 8-channel video card simultaneously carries 8-channel unidirectional video, 4-channel data, 4-channel bidirectional audio, and 2-channel Ethernet over one optical path, with video, PTZ control, intercom voice, and network data sharing a single optical fiber.
| User Card Type | Video Channel | Services That Can Be Multiplexed on the Same Card |
|---|---|---|
| 1-channel video card | 1-channel unidirectional video | Service channels configured by card type |
| 2-channel video card | 2-channel unidirectional video | Service channels configured by card type |
| 4-channel video card | 4-channel unidirectional video | Service channels configured by card type |
| 8-channel video card | 8-channel unidirectional video | 4-channel data + 4-channel bidirectional audio + 2-channel Ethernet |
A full configuration of 15 user cards, 1 network management card, and 2 power cards is the upper limit of the scale that one central-end chassis can accommodate. User cards can be added one by one according to the site service combination for capacity expansion. The same type of user card corresponds to one type of on-site requirement, so there is no need to reserve card slots for service channels not yet in use.
When the service channels of a single card are insufficient, the corresponding site can switch to an 8-channel video card. When a site has many types of services, there is also no need to lay separate optical cables or configure additional transmission equipment for each type of service; a single optical fiber completes the multiplexing and transmission of four types of services.
Figure 2: IDM-Video centralized video optical multiplexer service card layout and optical ports on the rear of the chassis
How Does a Centralized Video Optical Multiplexer Connect Remote Stations in Star Networking?
How a centralized video optical multiplexer connects remote stations in star networking is as follows: one 19-inch 5U centralized chassis is placed at the central end, and one remote device is placed at each remote station. Each station is independently uplinked to the central end over one optical fiber, forming a star network from the central end to multiple stations.
The engineering value of the star structure lies in fault isolation: links between stations are independent. When an abnormality occurs in the optical fiber or device of a certain station, the video services of other stations are not affected, and O&M personnel can locate the fault link by link.
After a network management card is inserted at the central end, online network management monitoring is supported. The working status of devices on the link can be viewed in real time at the central end, and alarm information is presented in a centralized manner, so duty personnel do not need to conduct on-site inspections station by station.
Devices at the remote station side are selected according to the site service combination and link distance. The optical interface type, optical module distance, and link optical power budget are calculated according to the on-site optical cable conditions, and specific models are subject to the manufacturer's technical documentation and commercial confirmation.
How Does Dual Mutual-Backup Power Supplies of a Centralized Video Optical Multiplexer Ensure Power Supply?
How dual mutual-backup power supplies of a centralized video optical multiplexer ensure power supply is as follows: two power cards are inserted into the chassis to back each other up. When one of them becomes abnormal, the other continues to supply power to the unit, and the chassis will not lose power entirely due to the failure of a single power card.
The device also features a self-recovering fuse circuit design for lightning protection. After the fuse operates due to a lightning strike or surge, the circuit can recover by itself, reducing the situation where one induced lightning strike causes a long transmission interruption and requires personnel to handle it on site at an outfield cabinet.
These two designs, power supply and protection, target unattended scenarios such as industrial plant equipment rooms, highway outfield cabinets, and weak-current rooms at industrial park perimeters. The O&M cost of such sites is mainly concentrated in traveling to and from the site. The specific power supply input specifications and lightning protection level of the IDM-Video 15-user-card centralized video optical multiplexer are not listed in the product documentation and are subject to the manufacturer's technical documentation and commercial confirmation.
Functions and Performance Specifications
Function List
| Function | Description |
|---|---|
| 15-user-card centralized access | 19-inch 5U standard chassis, full configuration of 15 user cards, 1 network management card, and 2 power cards |
| Card-based service configuration | User cards can be 1-channel, 2-channel, 4-channel, or 8-channel video cards, added according to the site service combination |
| 8-channel unidirectional video per card | A single 8-channel video card provides 8-channel unidirectional video and multiplexes 4-channel data, 4-channel bidirectional audio, and 2-channel Ethernet |
| 5U star networking | Acts as the central end to form a star network with multiple remote stations, with independent links for each station |
| Dual mutual-backup power supplies | 2 power cards can back each other up; when one is abnormal, the other continues to supply power to the chassis |
| All-digital uncompressed transmission | All-digital uncompressed video transmission technology; video goes directly onto the optical path without compression encoding |
| Automatic gain control | The transmission section features automatic gain control, maintaining stable video amplitude over long-distance links |
| Multi-format compatibility | Compatible with video formats such as PAL, NTSC, and SECAM |
| Broadcast-grade video and CD-grade audio | Video quality can reach broadcast-grade standards, and audio quality can reach CD-grade standards |
| Self-recovering lightning protection fuse | Features a self-recovering fuse circuit design for lightning protection; the fuse can recover by itself after operation |
| Transparent data encoding | Transparent data encoding method, compatible with the products of major camera manufacturers |
| SMT and lossless regenerative repeater | SMT surface mount technology, supporting video lossless regenerative repeater |
| Alarms and network management | Complete alarm functions and network management functions, enabling online real-time monitoring |
Technical Specifications
| Item | Parameter/Specification | Description/Applicable Conditions |
|---|---|---|
| Chassis structure | 19-inch 5U standard chassis | Rack-mounted installation, central-end device |
| Full-configuration card slots | 15 user cards + 1 network management card + 2 power cards | User cards added one by one according to site services |
| User card options | 1-channel video card / 2-channel video card / 4-channel video card / 8-channel video card | Card type selected according to the number of video channels at the site |
| Upper limit of the service capacity of a single card | 8-channel unidirectional video + 4-channel data + 4-channel bidirectional audio + 2-channel Ethernet | Full configuration of the 8-channel video card |
| Video format | PAL, NTSC, SECAM | Adapts to cameras and monitors of different formats |
| Video quality | Reaches broadcast-grade standards | Guaranteed by the all-digital uncompressed transmission link |
| Audio quality | Reaches CD-grade standards | Multiplexed and transmitted on the same link as video |
| Networking approach | Star network, with the central end aggregating multiple remote stations | Remote device models are subject to the manufacturer's technical documentation |
| Network management and alarms | The network management card supports online real-time monitoring, with complete alarm functions | Centralized viewing of link status at the central end |
| Power supply mode | 2 power cards back each other up | Power supply input specifications are subject to the manufacturer's technical documentation |
| Port protection | Self-recovering fuse circuit for lightning protection | Can recover by itself after a lightning strike or surge |
| Optical interface and transmission distance | Not yet recorded in the knowledge base | Subject to the manufacturer's technical documentation and commercial confirmation |
| Power consumption and operating temperature | Not yet recorded in the knowledge base | Subject to the manufacturer's technical documentation and commercial confirmation |
Differentiated Value
| Differentiation Point | Value to the Engineering Party |
|---|---|
| 15 user cards: full configuration of 15 user cards, upper limit of the service capacity of a single card at 8-channel unidirectional video, high-density centralized access | Central-end cabinet space is planned as 5U, and stations are expanded by adding cards step by step, with no need to equip one central-side receiving device for each station |
| 8-channel unidirectional video: a single card multiplexes 8-channel unidirectional video, 4-channel data, 4-channel bidirectional audio, and 2-channel Ethernet | One optical fiber carries video, control data, intercom voice, and network services, with no need to equip additional transmission equipment or lay additional optical cables for each type of service when a site has many types of services |
| 5U star networking: a 19-inch 5U chassis acts as the central end and forms a star network with multiple remote stations | Station links are independent and faults do not affect each other, with unified power supply and unified O&M at the central end |
| Dual mutual-backup power supplies: 2 power cards back each other up, plus a self-recovering fuse circuit for lightning protection | Outfield unattended cabinets will not lose power entirely due to the failure of a single power card, and can recover by themselves after an induced lightning strike |
Typical Application Scenarios
Industrial Monitoring Private Network
Stations of an industrial monitoring private network are mostly in unattended plants, pumping stations, and distribution rooms. The distance from the station to the surveillance center is long, and a single fault often requires dispatching a vehicle and personnel to handle it on site. The Raytrans IDM-Video 15-user-card centralized video optical multiplexer uses optical fiber as the transmission medium, and its video channels are free from electromagnetic interference (EMI) from power cables and variable-frequency equipment. All-digital uncompressed transmission keeps the production site picture at broadcast-grade quality over long-distance links, and automatic gain control maintains stable video signal amplitude.
How multi-station video centralized access in industrial monitoring saves cabinets depends on the degree of centralization at the central end: one 15-user-card centralized optical multiplexer accommodates multi-station services with 15 user card slots, and one 5U chassis at the central end completes aggregation, with no need to equip one central-side receiving device for each station, thereby compressing cabinet space and the number of power supply circuits. In terms of power supply and protection, 2 power cards back each other up, and the self-recovering fuse circuit for lightning protection can recover by itself after a lightning strike or surge. The network management card and alarm functions allow duty personnel to grasp station status at the center.
Traffic Monitoring Private Network
Traffic monitoring private network sites are distributed along expressways or urban roads, and a road-section monitoring sub-center needs to aggregate the video from multiple outfield sites into one location. A 15-user-card centralized video optical multiplexer is placed in the sub-center or toll station equipment room as the central end, forming a star network with the outfield cabinets along the line site by site; a single 8-channel video card carries 8-channel unidirectional video, 4-channel data, 4-channel bidirectional audio and 2-channel Ethernet over a single optical fiber at the same time, so PTZ control, intercom and network data do not require additional equipment or additional optical cables.
Urban road sites are denser and the service volume of a single site is small, so 1-channel, 2-channel and 4-channel video cards can be flexibly configured by site, leaving central-end card slots for sites that actually send services upstream; the card-based structure with a full configuration of 15 user cards allows the sub-center cabinet space to be planned at 5U, and service capacity expansion follows the construction progress of surveillance sites by adding cards block by block.
Optical Fiber CCTV Network System
The core issue in integrating an optical fiber CCTV network system is to aggregate the video from a large number of distributed sites, together with data, audio and Ethernet services, into one location, while controlling the cabinet space usage and O&M workload at the control center side. The Raytrans IDM-Video 15-user-card centralized multi-service optical multiplexer handles multi-site services with 15 user card slots, and a single 5U chassis at the central end completes the aggregation, eliminating the need for one central-side receiving device per site, so both cabinet space and the number of power supply circuits can be reduced.
Broadcast-grade video quality, CD-grade audio quality and a transparent data encoding method make the system compatible with the products of major camera manufacturers, so projects do not require additional conversion equipment due to format or encoding method; the card-based structure supports card-by-card replacement, failures can be located to the card slot, and online network management monitoring together with complete alarm functions allows O&M personnel to check link status at the central end, reducing the inspection workload of traveling to each site.
The same platform can also be used for video transmission in building monitoring, video conferencing, video conferencing and distance learning systems, and the video lossless regenerative repeater capability suits occasions where the link needs to be extended section by section.
Conclusion
The Raytrans IDM-Video 15-user-card centralized video optical multiplexer uses a 19-inch 5U card-based chassis as the central end, with a full configuration of 15 user cards, 1 network management card and 2 power cards, and the upper limit of the service capacity of a single card is 8-channel unidirectional video multiplexing 4-channel data, 4-channel bidirectional audio and 2-channel Ethernet, aggregating the video and supporting services of multiple remote stations onto one device; 2 power cards in mutual backup together with a lightning protection self-recovering fuse circuit support continuous power supply for unattended outfield cabinets; all-digital uncompressed transmission together with automatic gain control (AGC) brings video quality up to broadcast-grade standards and audio quality up to CD-grade standards. For projects such as industrial monitoring private networks, traffic monitoring private networks and optical fiber CCTV network systems, the card slot configuration of the 15-user-card centralized multi-service optical multiplexer can be determined according to the site service distribution and link conditions, and the specific model and parameters are subject to the optical multiplexer manufacturer's technical documentation and commercial confirmation.
