IDM-Video Phone Multi-Service Video Optical Multiplexer

The 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 can also provide reliable product showcase and deployment support for smart mining communication solutions and government private network optical fiber 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 still and moving images at any high resolution. Its service composition includes unidirectional/bidirectional video, data, telephone, Ethernet, and single/dual high-fidelity services.

The 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. It 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 device that integrates the functions of a video optical multiplexer and a telephone optical multiplexer, it is equally suitable for scenarios with high reliability requirements such as intrinsically safe mining communication.

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 LED close-up of the IDM-Video Phone multi-service video optical multiplexer

What 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 converging 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 along these lines: the optical link carries bidirectional single-channel video signals, 2 telephone channels, and 2 data channels, with optional 2 Ethernet and 2 high-fidelity audio inputs. The site side no longer needs separate transmission devices for video, telephone, and data, simplifying private network cabling and equipment box space. As a professional optical multiplexer manufacturer, Raytrans demonstrates the design concept of multi-service convergence in its product showcase for this series.

The difference between the video telephone data multiplexing optical multiplexer and an ordinary optical multiplexer that only transmits video lies in the types of services and the number of interfaces. The IDM-Video Phone multi-service optical multiplexer provides bidirectional single-channel video signals, 2 telephone channels, and 2 data channels. The telephone section provides FXO and FXS interfaces, while the data section provides three types: RS-232, RS-422 (4-wire), and RS-485 (2-wire). It also offers optional 2 Ethernet and 2 high-fidelity audio inputs, so video, voice calls, data acquisition, and network backhaul can be completed simultaneously over one optical fiber link; the interface types and quantities are determined by the on-site service list. This integrated design of a telephone optical multiplexer and a video optical multiplexer is particularly practical in smart mining communication solutions and government private network optical fiber communication solutions.

The video telephone data multiplexing optical multiplexer maintains high-quality images through all-digital uncompressed video transmission. The video signals of the IDM-Video Phone multi-service optical multiplexer are sent into the optical channel without compression encoding, avoiding the loss of detail and encoding/decoding delay caused by compression. The video sampling bit width is 8bit, the video bandwidth is 0Hz–6.5MHz, and the video SNR is ≥70dB (weighted). It is compatible with NTSC, PAL, and SECAM formats; the transparent data encoding method makes the data channel compatible with the products of major camera manufacturers. Raytrans's video optical multiplexer product line continues this technical approach in scenarios such as intrinsically safe mining communication.

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

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

Function	Description
All-digital uncompressed video transmission	Video signals are transmitted directly over optical fiber in an all-digital, uncompressed manner, with no compression damage and avoiding the intermodulation interference of analog FM/PM optical multiplexers
Bidirectional single-channel video input	Provides bidirectional single-channel video signals; video quality reaches broadcast-grade standards and supports high-quality transmission of still and moving images at any high resolution
Telephone service access	Provides 2 telephone channels with FXO and FXS interfaces, an audio range of 300Hz–3400Hz, ITU G.711 A-law compression, and a loop current of 25mA per channel
Data service access	Provides 2 data channels with RJ-45 interface type, supporting RS-232, RS-422 (4-wire), and RS-485 (2-wire), with transparent encoding compatible with mainstream cameras
Optional Ethernet access	Optional 2 Ethernet channels with RJ-45 interface type, 10M/100M adaptive transmission rate, IEEE802.3 support, and full/half duplex adaptive
Optional high-fidelity audio	Optional 2 high-fidelity audio inputs with 16bit audio sampling bit width and 32KHz sampling frequency; audio quality reaches CD-grade standards
Format compatibility	Compatible with NTSC, PAL, and SECAM video formats, adapting to front-end cameras of different formats
Automatic gain control	Features automatic gain control to keep video signals stable over long-distance links
Lightning protection and self-recovery protection	Features a self-recovering fuse circuit design with lightning protection; automatically recovers after line abnormalities, reducing the risk of damage from lightning strikes and line abnormalities
Video lossless regenerative repeater	Supports video lossless regenerative repeater to extend transmission distance without losing video quality
Compact structure	Compact design with a small footprint and flexible, convenient installation, suitable for deployment in narrow spaces such as equipment boxes and cabinets

As an optical multiplexer manufacturer, Raytrans's multi-service optical multiplexer in its product showcase can be flexibly applied to smart mining communication solutions and government private network optical fiber communication solutions, meeting diverse needs such as intrinsically safe mining communication.

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

The interface and specification parameters of the IDM-Video Phone multi-service video optical multiplexer are listed by service category, and the optical and electrical ends are used in pairs. As a professional optical multiplexer manufacturer, Raytrans discloses all technical details in its product showcase to facilitate project selection.

Optical Interface Parameters

Item	Parameter/Specification	Description/Applicable Conditions
Interface type	FC (SC and others can be customized)	Optical patch cord interfaces are selected according to the on-site optical cable termination method
Fiber mode	Single-mode (multimode optional)	20Km single-mode transmission configuration
Receiver receive/transmit rate	155M/155M	155M optical interface
Receiver receive/transmit wavelength	1310nm/1550nm	Single-fiber bidirectional dual-wavelength pairing
Transmitter receive/transmit rate	155M/155M	155M optical interface
Transmitter receive/transmit wavelength	1550nm/1310nm	Paired with the opposite-end wavelength
Transmit optical power	-15～-8dBm	Available optical power at the transmit side
Receiver sensitivity	Better than -32dBm	Available optical power at the receive side
Transmission distance	20Km	Long-distance optical modules can be optionally installed for longer-distance optical fiber transmission

Video Interface Parameters

Item	Parameter/Specification	Description/Applicable Conditions
Interface type	BNC	75Ω unbalanced video interface
Video sampling bit width	8bit	All-digital uncompressed sampling
Video bandwidth	0Hz～6.5MHz	Covers standard-definition video signal bandwidth
Luminance non-linearity	<3%	Image luminance distortion specification
Differential phase (DP)	<0.7°	Color signal phase distortion specification
Differential gain (DG)	<0.7%	Color signal amplitude distortion specification
Input overload voltage	1.5VP-P (typical)	Input-side protection margin
Input/output voltage	1VP-P (typical)	Standard video level
Input/output impedance	75Ω (unbalanced)	Consistent with cameras and display devices
Video SNR	≥70dB (weighted)	Reflects image noise level

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

Item	Parameter/Specification	Description/Applicable Conditions
Telephone interface audio range	300Hz～3400Hz	Telephone voice bandwidth
Telephone interface impedance	Three-element complex impedance 200Ω+560Ω//0.1μF	Matched with SPC exchange and telephone side
Compression	ITU G.711 A-law	Voice encoding method
Loop current	25mA per channel	Power feeding current per telephone channel
High-fidelity interface type	RJ45	Audio access interface
Audio sampling bit width	16bit	High-fidelity service sampling precision
Input/output impedance	ADC:100KΩ/DAC:10KΩ	Audio input/output impedance
Input/output voltage	1.5VP-P (typical)	Audio level
Audio sampling frequency	32KHz	High-fidelity service sampling rate
Audio SNR	≥90dB	Audio quality reaches CD-grade standards
Audio bandwidth	20Hz～20KHz	Covers the audible frequency range
Total harmonic distortion	<1%	Sound reproduction distortion

Data and Ethernet Interface Parameters

Item	Parameter/Specification	Description/Applicable Conditions
Data interface type	RJ-45	Device-side data port
Data type	RS-232, RS-422 (4-wire), RS-485 (2-wire)	Selected according to the on-site control device interface type
Ethernet interface type	RJ-45	Optional 2 Ethernet channels
Ethernet transmission rate	10M/100M adaptive	Adaptive to the connected network rate
Ethernet standard protocol	IEEE802.3 support	Compatible with general Ethernet devices
Ethernet operating mode	Full/half duplex/adaptive	Negotiated with the opposite-end switch

Power, Consumption, Environment, and Structure Parameters

Item	Parameter/Specification	Description/Applicable Conditions
Power supply mode	AC220V/DC-48V	DC-48V power supply facilitates power tapping from communications equipment rooms and private network cabinets
Overall power consumption	≤6W	Low power consumption, suitable for long-term online operation
Operating temperature	-15℃～+65℃	Conventional equipment room and equipment box environments
Storage temperature	-25℃～+75℃	Warehousing and transportation environments
Industrial grade	-40℃～+85℃	Industrial-grade wide-temperature configuration, adapting to harsh on-site conditions
Relative humidity	0～95% (non-condensing)	Applicable condition for high-humidity environments is non-condensing
Product dimensions	110mm×168mm×28mm (Length×Depth×Height)	Compact design with flexible, convenient installation

Optional Configurations: Select Interface Combinations Based on the On-Site Service List

A standard video optical multiplexer carries only video over the optical path, whereas the IDM-Video Phone multi-service video optical multiplexer supports optional service combinations selected according to project interface requirements, so that a pair of devices can cover a wide on-site service list. As a converged platform of a multi-service optical multiplexer and a telephone optical multiplexer, this product offers flexible optional configurations in the Raytrans product showcase. The optional functions are shown in the table below; the specific configuration is subject to the manufacturer's technical documentation and commercial confirmation.

No.	Brief Description of Optional Functions
1	2 Fast Ethernet channels, 2 telephone channels
2	1 bidirectional video channel, 1 bidirectional data channel
3	1 bidirectional video channel, 1 ten-megabit Ethernet channel, 1 telephone channel, 1 bidirectional data channel, 1 bidirectional audio channel
4	1 bidirectional video channel, 1 ten-megabit Ethernet channel, 2 telephone channels, 1 bidirectional data channel, 1 unidirectional audio channel

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

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 service options. The corresponding capability and specifications of each item are shown in the table below. Raytrans has long been engaged in the R&D and manufacturing of optical multiplexers, and its products can be flexibly integrated into smart mining communication solutions and government private network optical fiber communication solutions to meet the requirements of special scenarios such as intrinsically safe mining communication.

Differentiated Selling Point	Corresponding Capability and Specifications	Description/Applicable Conditions
20 km single-fiber	20 km uncompressed video transmission over a single fiber, with an optional long-distance optical module for longer reach; 155 M optical interface, transmit optical power -15 to -8 dBm, receiver sensitivity better than -32 dBm	The front-end image reaches the surveillance center directly over one fiber core, with no repeater or routing and switching equipment between adjacent sites
Industrial-grade wide temperature	Industrial-grade wide temperature -40℃ to +85℃, suitable for unattended cabinets in the field; relative humidity 0 to 95% (non-condensing)	Also usable in outdoor equipment boxes, on mounting poles and in workshops with large temperature fluctuations
DC-48 V power supply	AC 220 V/DC-48 V dual power supply options, overall power consumption ≤6 W	Can be deployed directly at AC 220 V sites and DC-48 V equipment rooms, with less pressure on power supply and heat dissipation for long-term online operation
Multi-service options	Video, telephone, Ethernet and data interface combinations selected according to the on-site service list	A single optical fiber carries multiple service types at the same time, so multiple single-function devices are not stacked at the site side

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 against 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. The selection of the Raytrans IDM-Video Phone multi-service video optical multiplexer can proceed along the following three dimensions, which is also the product showcase selection approach commonly used by optical multiplexer manufacturers in smart mining communication solutions and government private network optical fiber communication solutions.

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. When images need to be transmitted in both directions between two points, choose a bidirectional single-channel video configuration; when only one image needs to be sent back in one direction, a unidirectional video configuration is sufficient; when the remote image must be sent back while the opposite end also returns one image, choose a bidirectional video configuration. The video interface of the Raytrans IDM-Video Phone multi-service video optical multiplexer is BNC, 75 Ω unbalanced, consistent with the video interface forms of common cameras, optical multiplexer transmit/receive ends and display devices; connect according to the input/output direction during installation.

Complete the Services According to Telephone, Data and Ethernet Interfaces

The number of service interfaces must align with the actual requirements of on-site telephones, control devices and the network. The Raytrans IDM-Video Phone multi-service video optical multiplexer comes standard with 2 telephone channels and 2 data channels; telephones are connected to an SPC exchange or telephone through FXO and FXS interfaces, and the data port supports three interface types, RS-232, RS-422 (4-wire) and RS-485 (2-wire), and can connect to PTZ control, access control and data acquisition terminals. When the network also needs to be sent back on site, add 2 Ethernet channels (10M/100M adaptive) and 2 high-fidelity audio accesses according to the optional configuration list, so that video, telephone, data and network services can be enabled simultaneously over a single optical fiber. For scenarios where telephone optical multiplexers, video optical multiplexers and multi-service optical multiplexers are used together, this interface configuration allows the product showcase and access of multiple service types on one optical multiplexer.

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 jointly determine the choice of optical module and unit grade. The Raytrans IDM-Video Phone multi-service video optical multiplexer comes standard with 20 km single-mode transmission; for longer distances, an optional long-distance optical module enables optical fiber transmission over a longer reach, and a video lossless regenerative repeater can be used when the link needs to be extended in the middle. For outdoor equipment boxes, outdoor mounting poles or workshops 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. In smart mining communication solutions, an intrinsically safe mining communication model can be selected to meet underground intrinsically safe requirements; in government private network optical fiber communication solutions, a standard model can be selected according to equipment room conditions, with the optical multiplexer manufacturer providing the corresponding product showcase and technical support.

How to Calculate a 20 km Repeaterless Single-Fiber Link, and How to Extend It When the Distance Is Insufficient?

The transmission distance of a video telephone data multiplexing optical multiplexer depends on the margin among the optical module's transmit optical power, receiver sensitivity and line loss. The Raytrans IDM-Video Phone multi-service video optical multiplexer comes standard with a transmission distance of 20 km, corresponding to a 155 M 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, and the actual achievable distance must also be calculated in combination with factors such as optical cable loss, the number of fiber adapters and splice points, and termination quality.

The 20 km single-fiber transmission of the Raytrans IDM-Video Phone multi-service video optical multiplexer can be extended in three ways. The first is to install a long-distance optical module for optical fiber transmission over a longer reach; the second is to use a video lossless regenerative repeater to segment the long link and amplify it through regeneration, so that video quality does not degrade due to regeneration; the third is to first measure the received optical power on site and then decide, based on the measured value, 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 the service direction. The Raytrans IDM-Video Phone multi-service video optical multiplexer carries video, telephone, data and Ethernet services simultaneously over one optical fiber, and a link interruption affects all services; therefore, during the design stage, the optical cable route, the number of patch points and spare fiber cores should all be included in 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. In smart mining communication solutions and government private network optical fiber communication solutions, if the distance of underground or field sites exceeds the 20 km single-fiber coverage, intrinsically safe mining communication equipment can be used in preference together with a repeater solution, with the optical multiplexer manufacturer assisting in link calculation.

How to Choose the Power Supply for a Video Telephone Data Multiplexing Optical Multiplexer, and What About Power Consumption and Environmental Conditions?

The power supply mode of the video telephone data multiplexing optical multiplexer is AC 220 V/DC-48 V dual power supply options, with overall power consumption ≤6 W. The power supply mode, operating temperature and line protection together determine whether the device can operate online over the long term at an unattended site. The industrial-grade configuration of the Raytrans IDM-Video Phone multi-service video optical multiplexer has an operating temperature range of -40℃ to +85℃, 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, on plant mounting poles and in 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 draw DC-48 V power directly. For scenarios in smart mining communication solutions that require underground deployment, an intrinsically safe mining communication model can be selected to meet the dual requirements of intrinsically safe power supply and wide temperature operation.

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

Wide temperature and power supply conditions need to be determined at the design stage together with the optical cable laying method. Aerial optical cables or those laid along poles are more likely to pick up lightning current on the user side; for such routes, equipotential grounding is recommended inside the equipment boxes at both ends, and an industrial-grade model should be selected according to the on-site environment. Point-to-point links inside an equipment room usually meet requirements at the standard temperature grade, but the construction quality of the power supply and ground wires also affects the long-term operation of the device. In government private network optical fiber communication solutions, the equipment room side usually draws DC-48 V power and connects to the UPS system, while intrinsically safe mining communication equipment in smart mining communication solutions needs to draw power according to underground intrinsically safe power supply specifications; the optical multiplexer manufacturer can provide the corresponding product showcase and power supply configuration recommendations.

How to Wire and Deploy a Video Telephone Data Multiplexing Optical Multiplexer?

The wiring of a 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 configured as a pair. The on-site wiring correspondence of the Raytrans IDM-Video Phone multi-service video optical multiplexer is shown in the table below.

Service	Equipment-Side Interface	On-Site Connection	Description
Video	BNC, 75 Ω unbalanced	Camera, optical multiplexer, display device	Connect according to the on-site signal flow direction for input/output
Telephone	FXO, FXS	SPC exchange, telephone	Audio range 300 Hz to 3400 Hz, A-law companding per ITU G.711
Data	RJ-45	PTZ controller, access control and data acquisition terminal	Wire according to RS-232, RS-422 (4-wire) and RS-485 (2-wire)
Ethernet (optional)	RJ-45	Switch, network camera	10M/100M adaptive, full/half duplex adaptive
High-fidelity audio (optional)	RJ45	Audio terminal, broadcast equipment	Audio sampling frequency 32 kHz, signal-to-noise ratio ≥90 dB
Optical path	FC (SC and other interfaces can be customized)	Optical fiber patch cord, optical cable	Single-mode 20 km, transmit and receive wavelengths paired at 1310 nm/1550 nm

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 deployment of the Raytrans IDM-Video Phone multi-service video optical multiplexer is mainly based on point-to-point direct connection. Deploy one device at each end, connect them directly with one optical fiber, connect a camera, telephone, control device and network at one end, and connect a display device, switch and telephone network at the other end, and end-to-end transmission of video, telephone, data and Ethernet is completed. This networking has a clear link and few points of failure, and is suitable for occasions where the distance between a monitoring point and a duty room is relatively long and multiple service types need to be sent back together over one optical fiber. In smart mining communication solutions, underground intrinsically safe mining communication equipment and above-ground equipment room equipment can complete multi-service backhaul through a single-fiber direct connection; in government private network optical fiber communication solutions, telephone optical multiplexers, video optical multiplexers and multi-service optical multiplexers at nodes of various departments can be deployed uniformly according to the same wiring specification. During deployment, first complete the power-on self-test of the device and confirmation of the received optical power of the optical path, then enable video, telephone, data and network services item by item; the optical multiplexer manufacturer Raytrans can provide a complete product showcase and on-site wiring guidance.

Typical Application Scenarios

Electric Power and Rail Transit Private Networks

Electric power substations, switching stations and sites along the rail transit line — the translation is as follows:

Electric power substations, switching stations and sites along the rail transit line show a dispersed site distribution, the inter-station distance is large and most of them are unattended, and the cabinets usually have no air conditioning and no permanent personnel. The Raytrans IDM-Video Phone multi-service video optical multiplexer uses one optical fiber to send bidirectional single-channel video, 2 telephone channels, 2 data channels and optional 2 Ethernet channels back to the dispatch end together, so the on-site images, dispatching calls, device status data and network services share one fiber core and there is no need to lay separate lines for each type of signal. As a professional optical multiplexer manufacturer, Raytrans clearly specifies in the product showcase for this series that the industrial-grade operating temperature covers -40 °C to +85 °C with a relative humidity of 0 to 95% (non-condensing), that a choice of AC220V/DC-48V dual power supply is supported, that the existing DC-48V power supply at substations and traction substations can be used directly, and that the overall power consumption is ≤6 W, so the pressure of power supply access and heat dissipation inside the cabinet is relatively small.

Safe City and Public Security Video Private Network

The sites of Safe City and public security video private networks are distributed along roads, checkpoints and community areas in belt-shaped or star topologies, and the distance from a front-end camera to a sub-control center or from a sub-control center to a command center often spans several kilometers to 20 km. The Raytrans IDM-Video Phone multi-service video optical multiplexer provides repeaterless 20 km transmission over a single fiber: the front-end picture reaches the upper-level node directly along one fiber core, with no repeater and no routing and switching equipment in between, so the points of failure along the link are reduced accordingly; video, telephone and data service multiplexing over one optical cable reduces the occupation of pole routes and ducts accordingly. Checkpoint calls and intercom services can be connected to the channel of a telephone optical multiplexer, and the data channels are used for PTZ control and device status backhaul; all-digital uncompressed video transmission avoids encoding and decoding latency, and the video SNR is ≥70 dB (weighted), meeting the clarity requirements of evidentiary images.

Oilfields and Mining: Unattended Sites in the Field

Oilfield well sites, oil pumping stations and mining area sites are distributed in the field, where the inter-station distance is large, the power supply and environmental conditions are limited, and the frequency of on-site inspection is low. The Raytrans IDM-Video Phone multi-service video optical multiplexer multiplexes bidirectional single-channel video, 2 telephone channels, 2 data channels and optional 2 Ethernet channels into one optical fiber, so only one optical cable link needs to be kept between a field site and the station control center to meet the requirements for monitoring, calls and data backhaul. The solution is equally applicable to the intrinsically safe mining communication deployment in a smart mining communication solution, and the industrial-grade wide-temperature configuration with an operating temperature of -40 °C to +85 °C, a relative humidity of 0 to 95% (non-condensing) and a self-recovering fuse circuit design with lightning protection addresses the conditions of field cabinets and outdoor equipment boxes; the power supply mode supports AC220V/DC-48V, the DC-48V supply can be used directly when a field site already has a DC power supply, and the overall power consumption is ≤6 W.

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; the all-digital uncompressed transmission of video brings the picture quality up to the broadcast-grade standard, 20 km transmission over a single fiber together with the video lossless regenerative repeater supports long-distance coverage, and the industrial-grade wide temperature, the AC220V/DC-48V dual power supply and the ≤6 W overall power consumption address the harsh on-site conditions of electric power and rail transit private networks, Safe City and public security video private networks, and oilfield and mining unattended sites in the field; when the interface configuration, power supply mode and transmission distance need to be checked item by item for a project, they can be confirmed one by one in the light of the actual service list and the manufacturer's technical documentation.