SC AND T HKM01 4K IR CAT5e KVM Extender User Manual
- September 18, 2024
- SC AND T
Table of Contents
SC AND T HKM01 4K IR CAT5e KVM Extender
Introduction
HKM01-4K6G is a 4K60Hz HDMI® KVM extender that uses a cost-effective Ethernet cable to send HDMI®, USB, Analog audio, RS232 and IR signals with transmission distance up to 100 meters. Its TX unit has an HDMI® loop-out port for an extra HDMI® display. The built- in 4 USB 2.0 ports at the RX unit allow you to control the connected HDMI® device at the remote end. The KVM extender can perfectly apply to the broadcasting system, digital signage, home network integration, industrial control…etc.
Features
- Resolution up to 4K60Hz 4:4:4.
- Signal extension up to l00M over CAT5e cable.
- 60KM over single-mode fiber optic.
- Built-in local loop out for an extra HDMI® display at the TX side.
- Built-in 4 USB ports at the RX unit.
- Supports bi-directional analog audio transmission for Mic and headphones.
- Supports RS232 transmission and EDID management.
- Supports IR pass-through.
Panel View
HKM01T-4K6G
| Item | Interface | Description |
|---|---|---|
| 1 | EDID Select | EDID Select button. Refer to EDID setting |
| 2 | Setting | Refer to EDID Modes and RS232 Setting – DIP switch |
| 3 | Channel | To set up the grouping function |
| 4 | IR Tx | To connect to IR emitter |
| 5 | Audio Output | To connect to audio receiver |
| Audio Input | To connect to audio source | |
| 6 | USB Type-8 | To connect to USB host |
| 7 | RS232 | To connect to RS232-command-controllable device (needs 3.5mm jack |
cable to RS232)
8| Power/Link LED| Refer to LED Indication
9| SFP| To connect to HKMOlR-4K6G via SFP fiber module
10| Ethernet| To connect to HKMOlR-4K6G via Ethernet cable
11| HDM®I Input| To connect to HDMI® source
12| HDM®I Loop out| To connect to monitor or TV
13| DC Jack| To plug in DC 5V power adapter
HKM01R- 4K6G
| Item | Interface | Description |
|---|---|---|
| 1 | Mode &. Select | Mode &. Select button. Refer to settings |
| 2 | Setting | Refer to RS232 Setting – DIP switch |
| 3 | Channel | To set up the grouping function |
| 4 | USB Type-A | To connect to USB device, USB2.0 |
| 5 | RS232 | To connect to RS2 32- command- controllable device (needs 3.5m m |
jack cable to RS232)
6| Power/Link LED| Refer to LED Indication
7| SFP| To connect to HKM01T- 4K6G via SFP fiber module
8| Ethernet| To connect to HKM01T-4K6G via Ethernet cable
9| HDM®I Output| To connect to monitor or TV
10| Audio Output| To connect to audio receiver
Audio Input (Mic)| To connect to Mic
11| IR Rx| To connect to IR receiver
12| DC Jack| To plug in DC 5V power adapter
LED Indication
Power/Link LED
| LED Indication | Status | Description |
|---|---|---|
| Power (Green) | On | Power On |
| Off | Power Off | |
| Link (Blue) | On | Fiber or Ethernet Linked |
| Off | Fiber or Ethernet Unlinked |
Link/ ACT LED
| LED Indication | Status | Description |
|---|---|---|
| Fiber Connection Link (Green) | On | Fiber Linked |
| Off | Fiber Unlinked | |
| Fiber Connection ACT (Yellow) | Flash | Data Transferrin g |
| Ethernet Connection Link (Green) | On | Ethernet Linked |
| Off | Ethernet Unlinked | |
| Ethernet Connection ACT (Yellow) | Flash | Data Transferring |
Functional Description
KVM Transmission over IP
HKMOl-4K6G allows Keyboard, Video, and Mouse (KVM) transmission over IP using advanced technologies which enables the encoding and decoding of audiovisual (AV) signals into IP packets for transmission over Ethernet cables or fiber optic connections, allowing for longer reach distance without compromising signal quality.
The compression algorithms employed by the codec reduce the size of AV data, allowing for efficient transmission over 1 Gigabit IP networks.
Latency
HKM01-4K6G has a latency1 less than one frame according to our test, and here is our test condition. The test results are shown as follows:
HKMOl-4K6G Latency Test
| Test condition | Test result |
|---|---|
| Distance | Resolution |
| 160m | 4K60Hz 4:4:4 |
COMMSCOPE ISO- EN COMPLIANT 27 CAT5E UTP SOLIDPR04 AWG24 1917 RN19040036
| Less than l frame
1 The compression introduces ultra- low latency which is crucial for real- time applications such as video conferencing and live streaming, where minimizing delay is essential for smooth and responsive communication.
Transmission Distance
At 4K60Hz 4:4:4, HKM0l-4K6G could reach up to 170m, the distance may differ by cable or construction quality. The transmission distance test result is shown as follows:
HKM0l-4K6G Transmission Distance Test
| Test condition | Test result |
|---|---|
| Re solution | Cab le used |
| 4K60Hz 4:4:4 | CAT5e |
| COMMSCOPE ISO- EN COMPLIANT 27 CAT5E UTP SOLIDPR04 AWG24 1917 RN1904 0036 |
160m
4K60Hz 4:4:4| CAT6
COMMSCOPE E98256 4PR 24AWG U/UTP
| 170m
RJ45 Pin Definition
RJ45 connectors are commonly used for Ethernet cables in networking and AV
over IP applications.
Understanding the pinout or pin configuration of the connector is essential
for proper cable termination2 and connectivity.
| Pin | Color | Data |
|---|---|---|
| 1 | Orange-white | DATA0 + |
| 2 | Orange | DATA0- |
| 3 | Green- white | DATAl + |
| 4 | Blue | DATA2 + |
| 5 | Blue-white | DATA2- |
| 6 | Green | DATAl – |
| 7 | Brow n- white | DATA3 + |
| 8 | Brown | DATA3 – |
2 When terminating Ethernet cables with RJ45 connectors, it’s crucial to follow the TIA/EIA-568 wiring standards, which specify the wiring scheme for T568B pinout.
KVM Transmission over Fiber Optic
HKM01-4K6G also offers KVM transmission over longer distances using fiber
optic cables.
Depending on the specific SFP (small Form-factor Pluggable) modules and fiber
optic cables used, transmission distances can extend from hundreds of meters
to several kilometers without signal degradation.
HKM01T-4K6G converts electrical AV signals into optical signals by the SFP transmitter module for transmission over fiber optic cables, while HKM01R-4K6G converts optical signals back into electrical AV signals with the SFP receiver module at the receiving end.
HKM01-4K6G is compatible with both single-mode and multi-mode fiber optic cables, offering flexibility in deployment based on distance requirements and installation environments.
Transmission Distance
HKM01-4K6G optional package includes a pair of SFP transceiver modules. Single-mode modules, FM01S-20K, can be used when distances up to 20 kilometers are needed, while multi-mode modules, FM0lM-550 are used for shorter distances up to 300 meters.
SFP Pin Definition
HKM01-4K6G meets the pin configuration of SFP modules which adheres to industry standards governed by the Multi-Source Agreement (MSA). The SFP MSA outlines mechanical, electrical, and functional specifications for SFP modules, including the pin out configuration, ensuring interoperability and compatibility with SFP compatible devices from different manufacturers. Below tables is the pin configuration for SFP transceivers.
| Pin | Pin Name | Description |
|---|---|---|
| 1 | Vee | Ground connection |
| 2 | TX_FAULT | Indicates a fault condition in the transmitter |
| 3 | TX_DISABLE | When pull low, disables the transmitter circuitry |
| 4 | MOD_DEF2 | Used for module identification and management purposes |
| 5 | MOD_DEFl | Used for module identification and management purposes |
| 6 | MOD_DEF0 | Used for module identification and management purposes |
| 7 | Rate Select | No connection required |
| 8 | RX_LOS | In d ic a t e s the loss of signal condition on the receiver side |
| 9 | Vee | Ground connection |
| 10 | Vee | Ground connection |
| 11 | Vee | Ground connection |
| 12 | RD- | Differential pair for receiving data signals |
| 13 | RD+ | Differential pair for receiving data sig na ls |
| 14 | Vee | Ground connection |
| 15 | Vee | Provides power to the SFP module |
| 16 | Vee | Provides power to the SFP module |
| 17 | Vee | Ground connection |
| 18 | TD+ | Differential pair for transmitting data signals |
| 19 | TD- | Differential pair for transmitting data signals |
| 20 | Vee | Ground connection |
Bidirectional Small Form-factor Pluggable (Bi-Di SFP) is also supported by HKM01-4K6G. Unlike traditional SFP modules, which use separate fibers for transmitting and receiving data (one for each direction). Bi-Di SFP modules utilize wavelength division multiplexing (WDM) technology to transmit and receive signals over the same fiber strand.
Fiber Connector Type
The SFP modules provided in our optional package use Lucent Connector (LC)
type dual fiber connectors for seamless integration with existing fiber optic
infrastructure. The LC connector’s small form-factor and dual fiber design
enable high-density connections and efficient use of fiber optic cables in
networking environments.
Pairing
Pairing the HKM01T-4K6Gs and HKM01R-4K6Gs is essential for transmitting and receiving audiovisual signals over IP networks. To ensure proper functionality and communication between transmitters and receivers, follow below steps.
Default
The factory default setting is set to Channel 0 for both the HKM01T-4K6G and HKM01R-4K6G, therefore, there is no need to adjust the channel for a point to point application.
Point to Point
- If the rotary switch has been adjusted to a different channel from the original default setting, you will have to set up the channel of the HKM01T-4K6G and HKM01R-4K6G to the same channel.
- Remove the power and plug it in again.
Grouping – Rotary Switch
-
You only need to adjust the rotary switch while connecting multiple HKM0lT-4K6Gs/HKM0lR-4K6Gs on the same Ethernet switch.
-
Set up the Channel:
The channel of the transmitter and receiver in the same group should be the same. Notice that each HKM0lT-4K6G hould be set to a unique channel number (all channels can not be repeated). -
Remove the power and plug it in again.
(up to 16 pairs
of the HKM01T-4K6Gs and HKM01R-4K6Gs can be set)
SFP/ Ethernet Link – Detection Mode
HKM01-4K6G will detect the connection status before booting and decide whether to use the Ethernet or fiber optic cable for transmission. We recommend you to connect the cable you desire to HKM01-4K6G before booting it, and it will automatically detect the cable when booting. To configure the operation, follow these steps:
-
Connect Ethernet interface before booting: Ethernet cable transmission mode
-
Connect SFP interface before booting: Fiber optic cable transmission mode
-
Connect both Ethernet and SFP interfaces before booting: Fiber optic cable transmission mode
-
Connect neither Ethernet nor SFP interfaces before booting: Ethernet cable transmission mode
-
If you want to change the transmission mode during operation, you need to turn off HKM01-4K6G, reconnect, and then reboot HKM01-4K6G to change the transmission mode.
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