Thinklogical Velocity KVM-34 series KVM fiber extender

Thinklogical Velocity KVM-34 series KVM fiber extender

Product positioning and core values

1. Product positioning

The Velocitykvm-34 series is a four screen single link DVI KVM fiber optic extension system that uses a "transmitter receiver" architecture to achieve remote separation and control of computers and peripherals through single-mode/multi-mode fibers. It supports video, audio USB、 The synchronous transmission of multiple signals through serial ports solves the three major pain points of "long-distance signal attenuation, high-resolution uncompressed transmission, and compatibility with multiple peripherals".

2. Core values

Uncompressed high-definition transmission: relying on patented MRTS (Multi Rate Transmission System) technology, 6.25Gbps bandwidth supports all single link DVI resolutions (such as 1920 × 1080) 1200@60Hz ）No frame loss, no compression, zero image delay;

Ultra long distance coverage: Single mode fiber can transmit up to 10km, and multimode fiber (OM3 enhanced type) can transmit up to 1000m, meeting the deployment needs of large parks, cross buildings, and other long-distance environments;

Multi interface compatibility: integrated with USB (HID/1.1/2.0), PS2, RS-232 serial port, bidirectional stereo audio, compatible with keyboards, mice, USB drives, high-speed storage devices, microphones and other peripherals;

High security: Provides "HID only" models (with USB storage devices disabled) to meet the security control needs of classified scenarios such as command centers and financial data centers.

Product classification and core differences

The series includes four core models, all of which support four screen DVI output, PS2, RS-232 serial port, and bidirectional audio. The core difference lies in USB function and network expansion capability. The specific classifications are as follows:

Model Type Core Interface Configuration Transmission Rate Applicable Scenarios

USB 1.0 HID (only) supports USB ergonomic devices (keyboard, mouse, drawing board), disabled USB storage - classified scenarios (such as military command center, financial data center), to prevent data leakage

USB 1.1 supports USB 1.1 full speed peripherals (USB flash drives, tablets, low-speed printers) at 12Mbps for regular office scenarios, without the need for high-speed USB devices

USB 1.1+Ethernet (10/100Base-T) USB 1.1 functionality+Ethernet expansion, capable of transmitting network signals via fiber optic USB 12Mbps; Ethernet 100Mbps requires simultaneous extension of network and KVM signals in scenarios such as remote laboratories and distributed offices

USB 1.1+USB 2.0 compatible with USB 1.1 (low-speed) and USB 2.0 (high-speed) devices. USB 2.0 can reach 480Mbps and requires high-speed peripherals, such as DVD drives, high-speed portable hard drives, and professional scanners

In addition, all models offer single-mode/multi-mode fiber options, and fiber connectors support LC, SC, and ST types to adapt to different fiber infrastructure.

Key technical parameters

1. Transmission performance parameters

Parameter category specification details

Video signal single link DVI-D, supporting all resolutions (such as 1920 × 1080) 1080@60Hz 1920 × 1200@60Hz ）

Transmission bandwidth of 6.25Gbps (MRTS technology), no compression, no frame loss

Fiber optic distance - multimode: OM1 (62.5/125 μ m) 50m; OM2（50/125μm）350m； OM3（50/125μm）750m； OM3 Enhanced 1000m

-Single mode: OS2 (9/125 μ m) 10km (for distances exceeding 10km, please contact the manufacturer for customization)

The standard number of optical fibers is 5 cores (4 cores for video/USB, 1 core for USB/DC feedback), supporting customized models with fewer cores

2. Physical and environmental parameters

Parameter category specification details

Size 19 inch rack mount (EIA standard), 1U height (4.40cm), width 44.5cm, depth 36.1cm

The weight of a single machine is 11lbs (4.99kg), and the transportation weight of the transmitter+receiver set is 27lbs (12.25kg)

Power supply wide voltage 100-240V AC (47-63Hz), single machine power consumption 40W

Working environment temperature 0-50 ℃ (32-122 ℉), humidity 5% -95% RH (non condensing)

Certified to comply with electrical safety standards in the United States, Canada, and the European Union (such as CE, FCC, cUL)

12 months warranty (expandable extended warranty)

3. Interface configuration (transmitter vs receiver)

Equipment interface type and quantity remarks

Transmitter - Video: DVI-D (4, connected to computer)

-USB: USB B (HID/1.1/2.0, depending on model), local USB A (keyboard/mouse, 2)

-PS2: MiniDIN 6 female head (keyboard/mouse, 1 each; local 1 each)

-Audio: 3.5mm interface (1 microphone, 1 line input)

-Serial port: DB9 female head (RS-232)

-Fiber optic: LC/SC/ST (single-mode SC/APC, multi-mode LC/SC/ST)

-Software upgrade: USB B (3) local interfaces support "near end control", which means that the computer can be directly operated with a keyboard and mouse

Receiver - Video: DVI-D (4, connected to monitor)

-USB: USB A (4, connected to peripherals)

-PS2: MiniDIN 6 female head (keyboard/mouse, 1 each)

-Audio: 3.5mm interface (1 microphone, 1 line output)

-Serial port: DB9 male (RS-232)

-Fiber optic: Same transmitter

-Software upgrade: USB B (2) supports bidirectional audio transmission, enabling sound synchronization between the near end microphone and the far end speaker

System architecture and deployment specifications

1. Core architecture

Adopting a "point-to-point" fiber optic transmission architecture, the signal flow direction is as follows:

Signal acquisition: The transmitter is connected to a computer to collect DVI video, USB/PS2 (keyboard and mouse), audio, and serial port signals;

Fiber optic transmission: The signal is transmitted uncompressed to the receiver through a 5-core fiber optic cable (single-mode/multi-mode optional);

Signal output: The receiver is connected to the display and peripherals (keyboard, mouse, USB flash drive, etc.) to restore the signal and drive the peripherals;

Local control: The transmitter is equipped with a local USB/PS2 interface, supporting direct operation from the computer and achieving dual control of "local+remote".

2. Key deployment requirements

Fiber selection: Strictly match single-mode/multi-mode models, prioritize OM3 (50/125 μ m) for multi-mode to extend transmission distance; Fiber optic cables must comply with TIA/EIA standards to avoid signal loss caused by the use of inferior fiber optic cables;

Interface connection: DVI cables require single link shielded cables (factory supplied 2-meter cables), and USB cables should not exceed 6 feet (approximately 1.8 meters) in length to avoid signal attenuation;

EDID/DDC configuration: The transmitter has a built-in universal EDID table and can also read the EDID of the local display; Support "Active DDC" to allow remote displays to provide resolution information feedback to the computer, ensuring display compatibility;

Power isolation: The transmitter and receiver need to be connected to independent power sources to avoid common ground interference (such as sharing sockets with high-power devices).

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Selection method and ordering rules

1. Selection process

Confirm transmission distance and fiber type:

Short distance (≤ 1000m): Choose multi-mode model (suffix "M34");

Long distance (≤ 10km): menu model number (suffix "634");

Select interface function:

Confidential scenario: Select "USB 1.0 HID only" (model includes "H00");

Ordinary office: select "USB 1.1" (model includes "000");

Network expansion required: select "USB 1.1+Ethernet" (model includes "N00");

High speed peripheral: select "USB 1.1+2.0" (model includes "U00");

Determine the fiber optic connector:

Small scale deployment: choose LC interface (model including "LC");

Traditional computer room: select SC/ST interface (model includes "SC"/"ST");

Supporting selection: Select fiber optic modules according to requirements (such as VOP-M12 for multimode and VOP-S36 for single-mode).

2. Example of ordering code

Taking "multi-mode, USB 2.0, LC interface receiver" as an example: VEL-U00M34-LCRX

VEL: Product prefix;

U00: Function code (USB 1.1+2.0);

M34: Fiber type (multimode);

LC: connector type;

RX: Device type (receiver, TX is transmitter).

Typical application scenarios

Broadcasting and post production: The studio computer is separated from the control room monitor (500m away), and four DVI videos are transmitted through multi-mode fiber optic cables. USB 2.0 is connected to high-speed storage devices to achieve real-time editing of 4K materials;

Command Center: The server room (remote end) is separated from the command hall (near end) (3km away), with a menu model number and "HID only" configuration. USB storage is disabled to ensure data security, and an RS-232 serial port control switch is extended;

University laboratory: The teacher's computer (teaching building) is connected to the student's experimental equipment (laboratory, 800m away) through multimode fiber optic cable. The USB 1.1+Ethernet model supports extended network and KVM, and students can remotely operate the experimental equipment;

Large digital signage: The central control computer (computer room) in the shopping mall is connected to multiple digital screens (on different floors, at a distance of 300m) through multimode fiber optic cables, and four DVI screens are used to drive screens in different areas, achieving unified content control.

Precautions and maintenance suggestions

Signal interference prevention: Fiber optic cables should be kept away from strong electrical lines (≥ 1m), and USB/audio cables should be avoided from being laid in parallel with power lines to prevent electromagnetic interference from causing image snowflakes and audio noise;

Regular maintenance: Check the cleanliness of fiber optic connectors every quarter (wipe with specialized fiber optic cleaning paper) to avoid signal attenuation caused by dust; Annual testing of power supply voltage stability to prevent voltage fluctuations from damaging equipment;

Troubleshooting: If there is no signal in the video, priority should be given to checking the fiber optic link (using an optical power meter to measure light attenuation); When there is no response from the USB peripheral, confirm whether the model supports the device (e.g. "HID only" model does not support USB drives);

Software upgrade: Upgrade firmware through the USB B interface of the transmitter/receiver, and do not turn off the power during the upgrade process to avoid device damage.