IDM-Video Phone Multi-Service Video Optical Multiplexer

IDM-Video Phone multi-service video optical multiplexer is a multi-service optical multiplexer that multiplexes video, telephone, data, and Ethernet services into a single optical fiber for transmission. Depending on the service combination, it is also called a video telephone data multiplexing optical multiplexer. It is developed by the optical multiplexer manufacturer Beijing Ruiguang Jiyuan Digital Technology Co., Ltd. (Raytrans) and is used for long-distance video transmission in electric power and rail transit private networks, Safe City and Public Security Video Private Networks, and unattended sites in the field such as oilfields and mines. It is a commonly used device in government private network optical fiber communication solutions and smart mining communication solutions.

The video telephone data multiplexing optical multiplexer adopts all-digital uncompressed video transmission technology. Video quality reaches broadcast-grade standards, audio quality reaches CD-grade standards, and it supports high-quality transmission of any high-resolution still and moving images. Its services comprise unidirectional/bidirectional video, data, telephone, Ethernet, and single/dual high-fidelity audio. As a mature integrated model combining a video optical multiplexer and a telephone optical multiplexer, its product showcase covers multiple service combinations of video, voice, and data.

IDM-Video Phone multi-service video optical multiplexer belongs to the Video series of digital video optical multiplexers. It is a mature model for long-distance video transmission, striking a balance between transmission quality and equipment investment, and is suitable for optical fiber CCTV network systems, traffic monitoring, industrial monitoring, building monitoring, video conferencing, high-quality video conferencing, distance learning systems, and more. As a professional optical multiplexer manufacturer, Raytrans combines transmission stability and multi-service access capacity in this model.

Key Specifications at a Glance: Video bidirectional single-channel uncompressed · Telephone 2 channels (FXO/FXS) · Data 2 channels RS-232/RS-422/RS-485 · Ethernet optional 2 channels 10M/100M adaptive · High-fidelity audio optional 2 channels · Optical interface 155M FC · Single-fiber transmission distance 20Km · Power supply AC220V/DC-48V · Power consumption ≤6W · Dimensions 110mm×168mm×28mm

Figure 1: Front view and indicator close-up of the IDM-Video Phone multi-service video optical multiplexer

What kind of device is the IDM-Video Phone video telephone data multiplexing optical multiplexer?

The video telephone data multiplexing optical multiplexer is an optical multiplexer that packs four types of services—video, telephone, data, and Ethernet—into the same pair of optical fiber transmission channels. Its value lies in consolidating transmission tasks that previously required multiple stacked single-function devices into one device and one optical fiber. The IDM-Video Phone multi-service video optical multiplexer is designed on this principle: the optical link carries bidirectional single-channel video signals, 2 telephone channels, and 2 data channels, with optional 2 Ethernet channels and 2 high-fidelity audio inputs. Sites no longer need separate transmission devices for video, telephone, and data, which simplifies private network cabling and equipment box space, and also provides a compact access-side product showcase form for government private network optical fiber communication solutions and smart mining communication solutions.

The difference between the video telephone data multiplexing optical multiplexer and ordinary optical multiplexers that only transmit video lies in the service types and interface counts. The IDM-Video Phone multi-service video optical multiplexer provides bidirectional single-channel video signals, 2 telephone channels, and 2 data channels. The telephone section provides FXO and FXS interfaces, and the data section provides three types: RS-232, RS-422 (4-wire), and RS-485 (2-wire), plus optional 2 Ethernet channels and 2 high-fidelity audio inputs. Video, calls, data acquisition, and network backhaul can be completed simultaneously over one optical fiber link; the interface types and counts are determined by the on-site service list. As a multi-service platform product from a professional optical multiplexer manufacturer, this device can serve both as a video optical multiplexer and a telephone optical multiplexer, facilitating unified link planning in optical fiber CCTV network systems.

The video telephone data multiplexing optical multiplexer maintains high picture quality through all-digital uncompressed video transmission. The video signals of the IDM-Video Phone multi-service video optical multiplexer enter the optical channel without compression encoding, avoiding the loss of detail and encoding and decoding latency caused by compression. The video sampling bit width is 8bit, the video bandwidth is 0Hz to 6.5MHz, and the video SNR is ≥70dB (weighted), compatible with NTSC, PAL, and SECAM formats. The transparent data encoding method makes the data channels compatible with the products of major camera manufacturers. Raytrans continues this all-digital transmission architecture across this series of optical multiplexers, enabling the device to maintain stable video quality over long-distance links.

Core Functions: One Device Multiplexes Video, Telephone, Data, and Ethernet into a Single Optical Fiber

The IDM-Video Phone multi-service video optical multiplexer completes multiplexing and transmission of video, telephone, data, and Ethernet services on a single device. The core functions are shown in the table below.

Technical Specifications: Optical Interface, Video, Telephone, Data, Ethernet, and High-Fidelity Audio

The interface and specification parameters of the IDM-Video Phone multi-service optical multiplexer are listed by service type, and the optical and electrical ends are used in pairs. As a mature product from a professional optical multiplexer manufacturer, this video optical multiplexer balances the transmission requirements of multiple service types, including video, telephone, data, and Ethernet, in its parameter design.

Optical Interface Parameters

Video Interface Parameters

Telephone (FXO/FXS) and High-Fidelity Audio Parameters

Data and Ethernet Interface Parameters

Power Supply, Power Consumption, Environmental and Structural Parameters

Optional Configuration: Select Interface Combinations According to the On-Site Service List

A conventional video optical multiplexer carries video only over the optical path, whereas the IDM-Video Phone multi-service video optical multiplexer supports optional service combinations according to project interface requirements, so that one pair of devices covers a wide range of on-site service lists. Whether building an optical fiber CCTV network system or deploying a government private network optical fiber communication solution and a smart mining communication solution, this flexible optional configuration capability of the multi-service optical multiplexer can be relied upon. The optional functions are shown in the table below; the specific configuration is subject to the manufacturer's technical documentation and commercial confirmation of Raytrans.

Differentiated Value: 20Km Single Fiber, Industrial-Grade Wide Temperature, DC-48V Power Supply and Multi-Service Optional Configuration

The differentiated value of the IDM-Video Phone multi-service video optical multiplexer centers on four items: single-fiber transmission distance, environmental adaptability, power supply mode and optional service configuration. The corresponding capability and specifications of each item are shown in the table below. Developed by the optical multiplexer manufacturer Raytrans, this product has a distinct product showcase advantage in the telephone optical multiplexer and multi-service optical multiplexer product lines.

How to Select a Video Telephone Data Multiplexing Optical Multiplexer?

To select a video telephone data multiplexing optical multiplexer, first check the number and direction of services to be connected according to the on-site service list, then determine the optical module configuration and model grade according to the transmission distance and environmental conditions, and finally check the power supply mode and installation space. As a professional optical multiplexer manufacturer, Raytrans provides the IDM-Video Phone multi-service video optical multiplexer with a complete interface configuration in its video optical multiplexer product showcase, and its selection can proceed along the following three dimensions.

Determine the Base Model by Number and Direction of Video Channels

The number and direction of video services determine the base configuration of the device. Select a bidirectional single-channel video configuration when images need to be transmitted in both directions between two points; a unidirectional video configuration is sufficient when only one image needs to be returned in one direction; and select a bidirectional video configuration when the remote images need to be sent back on site while the opposite end also returns one image. The video interface of the IDM-Video Phone multi-service video optical multiplexer is BNC, 75 Ω unbalanced, consistent with the video interface forms of common cameras, the transmit/receive end of optical multiplexers and display devices; connect according to the input/output direction during access.

Complete the Services with Telephone, Data and Ethernet Interfaces

The number of service interfaces must match the actual requirements of on-site telephones, control devices and the network. The IDM-Video Phone multi-service video optical multiplexer comes standard with 2-channel telephone and 2-channel data; telephones are connected to an SPC exchange or telephone through FXO and FXS interfaces, and the data port supports three types of interfaces, RS-232, RS-422 (4-wire) and RS-485 (2-wire), and can interconnect with PTZ control, access control and data acquisition terminals. When the network also needs to be backhauled on site, add 2-channel Ethernet (10M/100M adaptive) and 2-channel high-fidelity audio access according to the optional configuration list; a single optical fiber can then simultaneously enable video, telephone, data and network services, meeting the composite access requirements of the multi-service optical multiplexer in government private network optical fiber communication solutions and smart mining communication solutions.

Determine the Optical Module and Model Grade by Transmission Distance, Power Supply Mode and On-Site Environment

Transmission distance, power supply mode, and environmental conditions together determine the choice of optical module and unit grade. The IDM-Video Phone multi-service video optical multiplexer comes standard with 20 km single-mode transmission; for longer distances, a long-distance optical module can be installed to achieve longer-distance optical fiber transmission, and where extension is needed in the middle of the link, a video lossless regenerative repeater can be used. For outdoor equipment boxes, outdoor mounting poles, or factory buildings with large temperature fluctuations, an industrial-grade wide-temperature configuration (-40℃ to +85℃) is recommended, and the choice between AC 220 V and DC -48 V should be determined according to on-site power conditions, while checking whether the 110 mm × 168 mm × 28 mm unit dimensions match the installation position.

How is a single-fiber 20 km repeaterless link calculated, and how is it extended when the distance is insufficient?

The transmission distance of a video telephone data multiplexing optical multiplexer depends on the margin among the transmit optical power of the optical module, the receiver sensitivity, and the line loss. The IDM-Video Phone multi-service video optical multiplexer comes standard with a transmission distance of 20 km, corresponding to a 155M optical interface, transmit optical power of -15 to -8 dBm, and receiver sensitivity better than -32 dBm. The available optical power margin left between the two ends is the margin portion of the link budget; the actual achievable distance must also be calculated in combination with optical cable loss, the number of fiber adapters and splice points, termination quality, and other factors. This is also a basic calculation step in the link design of an optical fiber CCTV network system.

The single-fiber 20 km transmission of the IDM-Video Phone multi-service video optical multiplexer can be extended in three ways. First, a long-distance optical module can be installed to achieve longer-distance optical fiber transmission; second, a video lossless regenerative repeater can be used to segment the long link and amplify it in sections, so that video quality does not degrade due to regeneration; third, the received optical power can be measured on site first, and the measured value then used to decide whether to add a repeater or replace the optical module. In engineering practice, it is recommended to reserve a certain optical power margin at both ends of the link to avoid insufficient link margin after optical cable aging or connector contamination.

The calculation of transmission distance must be considered together with service direction. The IDM-Video Phone multi-service video optical multiplexer simultaneously carries video, telephone, data, and Ethernet services over a single optical fiber, and a link interruption affects all services. Therefore, during the design phase, the optical cable route, the number of patch points, and spare fiber cores should be incorporated into the solution; for lines with high reliability requirements, spare fiber cores and backup devices can be reserved in the solution for fast switchover in the event of a failure.

How is the power supply of a video telephone data multiplexing optical multiplexer selected, and what about power consumption and environmental conditions?

The power supply mode of the video telephone data multiplexing optical multiplexer is selectable between AC 220 V and DC -48 V dual power supply, with overall power consumption ≤6 W. Power supply mode, operating temperature, and line protection together determine whether the device can operate online over the long term at unattended sites. The industrial-grade configuration of the IDM-Video Phone multi-service video optical multiplexer covers an operating temperature of -40℃ to +85℃, with a standard operating temperature of -15℃ to +65℃, a storage temperature of -25℃ to +75℃, and a relative humidity of 0 to 95% (non-condensing). It can be used in outdoor equipment boxes, plant mounting poles, and equipment rooms with large temperature fluctuations; the power supply mode supports AC 220 V and DC -48 V, and communications equipment rooms and private network cabinets can directly draw DC -48 V power.

Lightning protection and self-recovering protection are key designs for outdoor lines. The IDM-Video Phone multi-service video optical multiplexer adopts a self-recovering fuse circuit design with lightning protection; after protection is triggered by a lightning strike or line abnormality, the circuit can recover automatically, reducing downtime caused by manual replacement of fuse components. The overall power consumption is ≤6 W, and the unit dimensions are 110 mm × 168 mm × 28 mm; the compact design facilitates installation in narrow equipment boxes or cabinets, making installation flexible and convenient.

Wide-temperature and power supply conditions need to be determined during the design phase together with the optical cable laying method. Aerial optical cables or those laid along poles are more susceptible to user-side lightning current; for such routes, equipotential grounding treatment is recommended in the equipment boxes at both ends, and an industrial-grade model should be selected according to the on-site environment. Point-to-point links in equipment rooms usually only require the standard temperature grade, but the construction quality of power and ground wiring likewise affects the long-term operation of the device.

How is the video telephone data multiplexing optical multiplexer wired and deployed?

The wiring of the video telephone data multiplexing optical multiplexer can be matched item by item according to service type: video over BNC coaxial, telephone and data over telephone and data cables, Ethernet over network cable, and the optical path over optical fiber patch cords, with the two ends in paired configuration. The on-site wiring correspondence of the IDM-Video Phone multi-service video optical multiplexer is shown in the table below.

Figure 2: Close-up of the video, telephone, and data interfaces on the rear panel of the IDM-Video Phone multi-service video optical multiplexer

The IDM-Video Phone multi-service video optical multiplexer is deployed mainly in point-to-point direct connection. One device is deployed at each end and connected directly with a single optical fiber; one end connects to cameras, telephones, control devices, and the network, while the other end connects to display devices, switches, and the telephone network, completing end-to-end transmission of video, telephone, data, and Ethernet. This networking has a clear link and few points of failure, making it suitable for occasions where the distance between a monitoring point and a duty room is relatively long and multiple types of services need to be sent back together over a single optical fiber. It has mature deployment practices in optical fiber CCTV network systems, government private network optical fiber communication solutions, and smart mining communication solutions. During deployment, first complete the power-on self-test of the device and confirm the received optical power of the optical path, then enable video, telephone, data, and network services item by item.

Typical Application Scenarios

Electric Power and Rail Transit Private Networks

Electric power substations, switching stations, and sites along the rail transit line are scattered, with long inter-station distances and mostly unattended operation; cabinets usually have no air conditioning or permanent staff. The IDM-Video Phone multi-service video optical multiplexer uses a single optical fiber to send back bidirectional single-channel video, 2-channel telephone, 2-channel data, and optional 2-channel Ethernet to the dispatch end together, so that on-site images, dispatching calls, device status data, and network services share one fiber core, eliminating the need to lay separate lines for each type of signal. The device's industrial-grade operating temperature covers -40℃ to +85℃, with a relative humidity of 0 to 95% (non-condensing), and supports selectable AC 220 V/DC -48 V dual power supply; the existing DC -48 V power at substations and traction substations can be used directly. With overall power consumption ≤6 W, the power supply and heat dissipation pressure in the cabinet is low. As a multi-service optical multiplexer for private network scenarios, this product is also often incorporated into the equipment selection lists of government private network optical fiber communication solutions and smart mining communication solutions.

Safe City and Public Security Video Private Network

The sites of Safe City and public security video private networks are distributed in belt or star patterns along roads, checkpoints, and communities, and the distance from front-end cameras to the sub-control center, and from the sub-control center to the command center, often spans several kilometers to 20 kilometers. The IDM-Video Phone multi-service video optical multiplexer provides single-fiber 20 km repeaterless transmission, with front-end images reaching the upper-level node directly over one fiber core without intermediate repeaters or routing and switching equipment, thereby reducing points of failure in the link. Video, telephone, and data services are multiplexed over a single optical cable, correspondingly reducing the occupation of poles and ducts. Checkpoint call and intercom services can be connected to the telephone channel, while the data channel is used for PTZ control and device status backhaul; all-digital uncompressed video transmission avoids encoding and decoding latency, and a video SNR ≥70 dB (weighted) meets the clarity requirements of evidentiary images. In an optical fiber CCTV network system, this type of video optical multiplexer can handle link transmission from front-end cameras to the sub-control center; product showcase information can be found in the official materials of Raytrans.

Oilfields and Mining: Unattended Sites in the Field

Oilfield well sites, oil pumping stations and mining area sites are distributed in the field, with large inter-station distances, constrained power supply and environmental conditions, and low frequency of on-site inspection. The IDM-Video Phone multi-service video optical multiplexer multiplexes bidirectional single-channel video, 2-channel telephone, 2-channel data and optional 2-channel Ethernet into a single optical fiber, so that only one optical cable link is needed between a field site and the station control center to meet the requirements for monitoring, calls and data backhaul. The industrial-grade wide-temperature configuration with an operating temperature of -40℃ to +85℃, relative humidity of 0 to 95% (non-condensing) and a lightning protection self-recovering fuse circuit design is intended for field cabinets and outdoor equipment boxes; the power supply mode supports AC 220 V/DC -48 V, and when DC power is already available at a field site, DC -48 V can be used directly, with overall power consumption ≤6 W. This form is equally suitable for mining area site access in smart mining communication solutions.

Summary

The IDM-Video Phone multi-service video optical multiplexer is a video telephone data multiplexing optical multiplexer that aggregates video, telephone, data and Ethernet services onto a single optical fiber. All-digital uncompressed video transmission brings picture quality up to broadcast-grade standards, single-fiber 20Km transmission and video lossless regenerative repeater support long-distance coverage, and industrial-grade wide temperature, AC 220 V/DC -48 V dual power supply and ≤6 W overall power consumption are intended for the harsh on-site conditions of electric power and rail transit private networks, Safe City and public security video private networks, and oilfields and mining unattended sites in the field; when interface configuration, power supply mode and transmission distance need to be checked per project, they can be confirmed item by item against the actual service list and the manufacturer's technical documentation.

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