SC&T 4K HDMI KVM USB/RS232/IR/Analog Audio CAT5e Extender over IP... User manual

ITEM NO:
HKM02BT-4K: 4K HDMI KVM over IP/Fiber - Transmitter
HKM02BR-4K: 4K HDMI KVM over IP/Fiber – Receiver
HKM02BPT-4K: 4K HDMI KVM over PoE - Transmitter
HKM02BPR-4K: 4K HDMI KVM over PoE – Receiver
HKM02BT: 1080p HDMI KVM over IP - Transmitter
HKM02BR: 1080p HDMI KVM over IP – Receiver
Features:
 Extend and distribute 4K HDMI signal with USB, bi-directional RS232/IR, and analog audio signals over LAN.
 Supports resolutions up to 4K@30Hz Ultra HD.
 HDCP 2.2 compliant.
 Transmission range up to 150M over CAT5e/CAT6.
 Support SFP optical transceiver, single mode transmission distance up to 60KM.
 Support Windows based management software, using PC for easy setting input/output link.
 Support Android/iOS APP for channel select and management.
 Support IR remote control or front panel button for channel select and management.
 Support up to 8x16 video wall.
 Support output resolution up/down scale: 2160p 30Hz input to 1080p 60Hz output.
 Supports full duplex Bi-Directional RS232 communication (115200 MAX) by control software on a PC, or other
automated control system to control devices attached to the extenders.
 Built in RS232 distribution function, to send RS232 signal from one TX to multiple RX.
 RS232 port support external Keypad/Console control. (Custom made available)
 Support Dolby TrueHD®, and DTS-HD Master™ ,LPCM audio up to 7.1 channels 192Khz
 Built in Bi-Directional analog audio transmission (only in unicast mode).
 Built in Bi-Directional IR extension.
 HKM02BT-4K and HKM02BPT-4K Transmitter unit built in HDMI local loop output.
 HKM02BR-4K and HKM02BPR-4K Receiver unit with 4 ports USB devices (2 port USB 1.1 front & 2 Port USB
2.0 rear), to extend USB peripheral devices, such as flash disk, hard disk, keyboard, mouse, etc.
 HKM02BPT-4K and HKM02BPR-4K support both 802.3af and power adaptor as power input.
 Use IGMP and Jumbo frame protocol Gigabit Switch Hub to do HD signal distribution and transmission.
 Support point to point and multiple source devices to multi-display connections via Gigabit network switch with
Unicast or Multicast mode.
 Support total of transmitter unit up to 1000 pieces, receiver unit over 60000 pieces based on the number of
ports on your network switch.
 Perfect for large scale remote HD content access and security monitoring systems, digital signage applications.
 Option Model: 1U 19” Rack Mounting Panel
TPN002BT: to fit 2 pcs HKM02BT-4K. TPN003BT: to fit 3 pcs of HKM02BT.
4K HDMI KVM USB/RS232/IR/Analog Audio CAT5e Extender over
IP Series

Application View:

Panel View:
Transmitter
HKM02BT-4K/HKM02BPT-4K
HKM02BT
Receiver
HKM02BR-4K/HKM02BPR-4K
HKM02BR

Panel Button Function:
HKM02B-4K/HKM02BP-4K
Button - + Menu
Short Press Reduce Value Increase Value
Menu/Cancel Press together Enter
Press 3 seconds Carry Decomposition
Press 6 seconds Lock/Unlock Button(When no OSD menu)
Press and hold then power on Factory Default Engineering Mode Set Factory Default then enter Engineering Mode
HKM02B
Button - + - and + together
Short Press Reduce Value Increase Value Enter
Press 3 seconds Carry Decomposition Menu/Cancel
Press 6 seconds Lock/Unlock Button(When no OSD menu)
Press and hold then power on Factory Default Engineering Mode Set Factory Default then enter Engineering Mode
In engineering mode Power and Link LED will be flash together, IP address of unit will be set to Static
IP 192.168.0.88 temporarily, users can login to the web page by browser to change settings or
update firmware.
Rotary Switch Function: (HKM02BT only)
HKM02BT Transmitter built in rotary switch to set channel numbers follow 16 HEX, could switch “ 0 ~ F
“ total 16 channels, A = channel 10, B = channel 11, others channel same as 16 hex conversion.
For channel numbers over 15 you could use panel button, IR remote, RS-232, APP to set up.
Front Panel LED Indication Status:
Panel LED Status HKM02B-4K HKM02B
Power
Green LED
On Boot completed
Flash Twice Booting
Flash Slowly Transmitter: standby( by IR remote power button only)
Receiver: video output be turned off
Breathing(Fading) Screen saver mode (not available for transmitter)
Link
Blue LED
On Connected & video is streaming
Flash Connecting, or no source input from transmitter
IR
Red LED
On Transmitting /receiving IR signal
Flash System warring, Alert
UTP
Green LED
On Connected by UTP RJ45 port
Flash Transmitting /receiving data from
UTP RJ45 port
SFP
Blue LED
On Connected by Fiber SFP port
Flash Transmitting /receiving data from
Fiber SFP port
MSG
Red LED
On Other message (IR, RS232,
System setting…)
Flash System warring, Alert

System Warring, Alert LED Indication Status:
Times HKM02B-4K MSG LED HKM02B IR LED
Always
ON
IR control, RS232 control, system
setting Transmitting/receiving IR signal
2 Transmitters channel conflict
3 DHCP server not found
4 Rest to factory default
5 Engineering mode
6 Manufacture setting mode
7 Aux system stopped
8 Aux system firmware boot sector error
9 Aux system firmware type error
RJ45 LED Indication Status:
RJ45 LED Status Description
LINK
Green LED On Ethernet connected
ACT
Orange LED Flash Data transmission
RJ45 pin define:
Link Cable (TIA/EIA-568-B)
1. Orange-white Data 1 + 5. Blue-white Data 3 -
2. Orange Data 1 - 6. Green Data 2 -
3. Green-white Data 2 + 7. Brown-white Data 4 +
4. Blue Data 3 + 8. Brown Data 4 –

Cable & Transmission Distance:
Link Cable use high quality CAT.5e UTP/STP/FTP or CAT.6 UTP cable
Transmission distance will be affected by equipment (Switch HUB), cable quality…etc.
When using CAT.5e/CAT.6 cable connect transmitter and receiver directly without Ethernet switch, the
maximum transmission distance up to 150M.
You can also use model no: SR01 repeater for extended longer distance or using Gigabit Switch hub
which support IGMP protocol and Jumbo Frame 8K for signal distribution or extend distance.
System Default Settings:
Transmitter / receiver support Unicast and Multicast two mode, default is Multicast.
In Multicast mode it could be one to one, one to multi, multi to on or multi to multi applications.
The analog audio output of transmitter and input of receiver will be off in this mode, analog audio only
from transmitters send to receivers.
Unicast mode suitable for one to one or multiple transmitters to one receiver applications.
Analog audio bi-direction transmission only in Unicast mode.
System default IP setting is Auto IP, it will assign 169.254.X.X (submask 255.255.0.0) to transmitters
and receivers, you could also set to DHCP or Static IP, please refer to web setting chapter: IP Setup.
We recommend DHCP or Static IP mode in mass deployment to prevent IP conflict problem.
Bandwidth Chart:
The bandwidth will be varied based on different resolution. Higher resolution may not request bigger
bandwidth. Below Chart is the resolution and bandwidth status for reference.
Resolution (@60Hz) Average Bandwidth (Mbps) Resolution (@60Hz) Average Bandwidth (Mbps)
3840x2160 (2160p) 218 (146~268) 1280x1024 (SXGA) 113 (79~150)
1920x1080 (1080p) 133 (80~210) 1024x768 (XGA) 81 (72~120)
1280x720 (720p) 147 (112~177) 800x600 (SVGA) 66 (49~82)
1600x1200 (UXGA) 81 (57~105) 640x480 (VGA) 43 (29~56)
Above bandwidth chart not include USB transmission, it cost up to 50 Mbps when transferring mass
data.
System scalability is limited only by uplink and stacking connector bandwidths, for example under
Gigabit Ethernet network, the total flow must not exceed 1000Mbps to avoid any delay on video
streaming. If the video play with 1080p resolution, the transmitter allow maximum up to 7 pcs for
simultaneous video streaming.
For 8~16 sources: use switches which support 802.3ad Link Aggregation or smart (or intelligent)
switches to get 2 Gbps or more bandwidth.
For over 16 sources: use switches which support SFP+ uplink or stackable switches to get 10 Gbps
bandwidth.
USB Hot Key Function:
In multicast mode support multi USB keyboard and mouse in each receivers, just plug and play, but only
one USB FLASH drive / hard disk could be used at same time.
You have to click “Pause/Break” key three times of the keyboard on the receiver or IR remote MENU
function 14 to establish USB FLASH drive /hard disk connection.

Remote Control Function:
You could use the IR infrared remote control to preset channel selection. Using the IR
remote control aim to the front panel of receiver or external IR receiver cable will be ok.
Initial at first time use the remote control or after change battery of remote control, the IR
remote control and the equipment Remote ID must be using same ID. The default
Remote ID for transmitter is 7, for receiver is 8.
To setting the Remote ID, Press and hold power button, then press button 8 to complete
the setting. + .(for example)
Remote Control Button Function:
Symbol Button Receiver Function Transmitter Function
POWER Turn Off/On Video Output Connect/Disconnect Receiver
Setup Remote Control ID
MENU Menu selection, input numbers after press menu button
UP Increase Value
DOWN Reduce Value
LEFT Carry
RIGHT Decomposition
ENTER Enter / Show Channel Information
(When no other Menu operation) Enter
ASTERISK Cancel
NUMBER Recall Previous Value
A Favorite Channel Switching
Not Available
B Back to Previous Channel
1 Number 1
2 Number 2
3 Number 3
4 Number 4
5 Number 5
6 Number 6
7 Number 7
8 Number 8
9 Number 9
0 Number 0

Remote Control Operation:
Select Channel:
Mode 1: use  or or or  to select channel and press ENTER to confirm.
Mode 2: enter the channel number and press ENTER to confirm the input channel.
Select Menu Function:
Mode 1: press MENU then use  or  or  or  to select function, press ENTER to confirm.
Mode 2: press MENU, then input function number as below, press ENTER to confirm.
Wake Up Receiver:
Receiver will enter screen saver mode after 30 seconds if no video input, you could press any button of IR
remote or pane to wake up
Turn On/Off Monitor:
Press POWER of IR remote or panel button CH- and CH+ together to turn on video output
IR Quick Block:
# # #: IR block mode, ignore IR control signal until press any panel button or IR remote * three times
* * *: Quit IR block mode
TV Wall Quick Switch:
MENU+POWER: IR quick block mode, ignore IR control signal until press any panel button or IR remote * * *
Add Favorite List:
MENU+A: Add channel to favorite list in menu, maximum 32 channels.
Remove Favorite List:
MENU+B: Remove current channel from favorite list in menu
Transmitter RS232 Mode:
MENU+A: Switch to message mode to receive response instead of OSD.
MENU+B: Switch to extender mode.
Menu Function List:
No. Menu Description Option / Remark RX TX
0 System Information System Information V V
1 Network Information Network Information V V
2 Function Information Function Information V V
3 Control Information Control Information V V
4 Video & Audio Information Video & Audio Information V V
5 RS-232 Control Information RS-232 Control Information V V
6 Channel Information Channel Information V X
7 Favorites Information Favorites Information V X
8 Routing Information Routing Information V X
9 Video Wall Information Video Wall Information V X
10 Advanced Menu Display advance menu 0 = Hide
1 = Display 1 1
11 Reconnection Reconnect with TX/RX V V
12 Disconnection Disconnection (keep routing
channel) V X
13 Stop Connection Stop all connection (Include
routing channel) V V
14 Starting USB Get USB control priority
(in multicast mode only) V X
15 Casting Mode Casting Mode setting 0 = Unicast
1 = Multicast 1 1
16 Jumbo Frame Jumbo Frame setting 0 = Disable
1 = Enable
1 1
17 Free Routing Free Routing setting 1 1
20 Video Function Video Extender setting
0 = Disable
1 = Enable
1 1
21 Audio Function Audio Extender setting 1 1
22 USB Function USB Extender setting 1 1
23 RS-232 Function RS-232 Extender setting 1 1
24 IR Function IR Extender setting 1 1
25 Video Wall Function Video Wall setting 1 1
26 CEC Function CEC setting (4K only) 1 1
27 GPIO Function GPIO setting (OEM only) 0 0

30 Button Control Button Control setting
0 = Disable
1 = Enable
1 1
31 Button Lock Button Lock 0 0
32 IR Control IR Control setting 1 1
33 IR Control ID IR Control ID setting 0 ~ 9 = IR Control ID
10 = User Define Controller 8 7
34 RS232 Control RS232 Control setting
0 = Disable
1 = Enable (Case Sensitive)
2 = Case Insensitive
1 1
35 HDMI 5V Control Cut HDMI 5V when switching 0 = Disable
1 = Enable
0 X
36 CEC Control Turn off TV by CEC (4K only) 0 X
40 Video Select Video output resolution setting
0=Pass-Through
1=HD 720p 60Hz,
2=Full HD 1080p 60Hz
3=Full HD 1080p 50Hz
4=Ultra HD 2160p 30Hz
5=Ultra HD 2160p 25Hz
6=WXGA 1366x768 60Hz
7=WXGA+ 1440x900 60Hz
8=WUXGA 1920x1200 60Hz
9=SXGA+ 1400x1050 60Hz
10=Customize
0 X
41 Audio Select TX Audio Input Select
/RX Audio Output Select
0 = HDMI
1 = Analog
2 = Auto
2 2
42 Analog Input Volume Analog Input Volume 0 = Mute
1 ~ 100 = Volume %
85 85
43 Analog Output Volume Analog Output Volume 85 85
44 EDID Update Update EDID from TX or monitor of RX V V
45 Video Quality Video Quality setting
0 = Graphic Mode
1 ~ 5 = Mode 1 ~ 5
6 = Video Mode
X 6
46 Anti-Dither Anti-Dither setting 0 = Disable
1 ~ 2 = Mode 1 ~ 2 X 0
47 HDCP Always On HDCP setting 0 = Disable
1 = Enable
0 0
48 HDCP 2.2 Always On HDCP 2.2 setting 0 0
50 RS-232 Select RS-232 Port Mode Select
0 = Disable
1 = Extender
2 = Keypad
3 = Auxiliary
4 = Console
1 1
51 RS-232 Baudrate RS-232 Extender Baudrate
0 = 115200 bps
1 = 57600 bps
2 = 38400 bps
3 = 19200 bps
4 = 9600 bps
5 = 4800 bps
6 = 2400 bps
7 = 1200 bps
8 = 600 bps
9 = 300 bps
0 0
52 RS232 Newline RS232 Control Newline setting 0 = Linux (0x0A)
1 = Windows (0x0D, 0x0A)
2 = Mac (0x0D)
3 = Other (0x0A, 0x0D)
1 1
53 RS232 Trigger RS232 Control Trigger setting 1 1
54 Auxiliary Baudrate Auxiliary Baudrate
0 = 115200 bps
1 = 57600 bps
2 = 38400 bps
3 = 19200 bps
4 = 9600 bps
5 = 4800 bps
6 = 2400 bps
7 = 1200 bps
8 = 600 bps
9 = 300 bps
0 0
55 Auxiliary Newline Auxiliary Newline setting 0 = Linux (0x0A)
1 = Windows (0x0D, 0x0A)
2 = Mac (0x0D)
3 = Other (0x0A, 0x0D)
1 1
56 Auxiliary Trigger Auxiliary Trigger setting 1 1
57 Device No Device No. for RS232 control 0 ~ 999 0 X
58 Group No Group No. for RS232 control 0 ~ 99 0 X
59 Party No Party No. for RS232 control 0 X

60 Fast Switch Switch without stop link 0 = Disable
1 = Enable
0 0
61 Conflict Check Check existing TX channel X 1
62 Channel Name Display Channel Name 0 = Hide
1 = Display 0 X
63 Only Favorites Only Favorites Channel
Available 0 = Disable
1 = Enable
0 X
64 Lock Favorites Lock Favorites Channel 0 X
65 Auto Sort Favorites Auto Sort Favorites Channel 0 X
66 Sort Favorites Sort Favorites Channel V X
67 Scan Channel To Favorites Scan Channel To Favorites V X
70 Direct Access Menu Run menu function even hide 0 = Disable
1 = Enable
1 1
71 Menu Item “Advanced Menu” Display/Hide “Advanced Menu” 1 1
72 Screensaver Screen Saver setting 0 X
73 Screen Off Option Behavior After Screen Off
0 = No Option
1 = Mute Analog Audio
2 = Stop Connection
1 X
74 Diagnostic Information Diagnostic Information 0 = Disable
1 = Enable
1 X
75 Message Redirect Message Redirect to Auxiliary X 1
76 Command Redirect Command Redirect to Auxiliary 1 1
80 Video Routing Video Routing setting
0 ~ 999 = Specific Channel
1000=Follow Channel
1000 X
81 Audio Routing Audio Routing setting 1000 X
82 USB Routing USB Routing setting 1000 X
83 RS-232 Routing RS-232 Routing setting 1000 X
84 IR Routing IR Routing setting 1000 X
85 GPIO Routing GPIO Routing setting 1000 X
86 Load Routing Mapping Load Free Routing Mapping 0~4 V X
87 Save Routing Mapping Save Free Routing Mapping V X
90 Video Wall Max Row Rows of Video Wall 0~7 0 X
91 Video Wall Max Column Columns of Video Wall 0~15 0 X
92 Monitor Row Position Monitor Position in Row 0~7 0 X
93 Monitor Column Position Monitor Position in Column 0~15 0 X
94 Monitor Outside Width Outer Width of Monitor
0~65000 (0.1mm)
0 X
95 Monitor Outside Height Outer Height of Monitor 0 X
96 Monitor Viewable Width Width of Viewable Area 0 X
97 Monitor Viewable Height Height of Viewable Area 0 X
100 Stretch Type Stretch Type 0 = Stretch Out
1 = Fit In 1 X
101 Rotate Rotation and Mirror 0 ~ 7 0 X
102 Vertical Shift Vertical Shift
400 = Default
399 ~ 0 = shift up
401 ~ 801 = shift down
400 X
103 Horizontal Shift Horizontal Shift
400 = Default
399 ~ 0 = shift left
401 ~ 801 =shift right
400 X
104 Vertical Scale Vertical Scale 0 ~ 255 0 X
105 Horizontal Scale Horizontal Scale 0 X
200 Backup Setting Backup Setting to bank 0~4 0 ~ 4 V V
201 Restore Setting Restore Setting from bank 0~4 V V
202 System Setting System Setting 0~255 (Debug use, no
recommend for general users)
V V
203 Application Setting Application Setting V V
333 Reset To Default Reset to factory default V V
999 System Reboot System Reboot V V
V = Available X = Not available Numbers = default value
 Menu 17 Free Routing function only works in Multicast mode, and must be enabled.
 Menu 25 Display or hide TV wall setting in the webpage.
 Menu 26 CEC function only available in unicast mode.
 Menu 20~25 To set select function connect to fix channel, not follow channel switching.
 Menu 32 To set customize IR remote, need to be import to RX by RS-232 or Telnet command
 Menu 35 For monitors which detect HDMI 5V to enter sleeping mode.
 Menu 36 Turn off monitor by CEC command via RX.

 Menu 40 Customize resolution need to be setup by RS-232 command or web page
 Menu 44 Use default EDID at TX side, copy monitor EDID at RX side.
 Menu 47~48 Monitor HDCP version setting, with incorrect HDCP version setting it will show black screen.
HDCP Always On HDCP 2.2 Always On Description
Disable Disable HDCP version follow source and Stream Type of content
Enable Disable Monitor support HDCP 1.4
Don’t Care Enable Monitor support HDCP 2.2
 Menu 50 Extender = RS-232 extender, Keypad = for RS-232 keypad or number key in terminal software,
Auxiliary = auxiliary mode debug, Console = system console debug
 Menu 60 Fast Switch mode works best when: resolution, frame rate, scan mode (interlaced/non-interlaced),
color depth, color space, interface (HDMI/DVI), HDCP mode (ON/OFF) all above are the same.
Disable: Stop link before channel switch, is will show black screen between switching, if switch to the channel
which not exist it will show diagnostic Information.
Enable: Keep link when channel switch, if switch to the channel which not exist may cause screen freeze 1~2
seconds then show diagnostic Information.
 Menu 61 Conflict Check will check existing TX channel number at booting, reconnection or before switching.
 Menu 62 Channel Name will show full name instead of number only, the position of channel name is center of
screen. Channel name can set by RS232 command or import from telnet port.
 Menu 75 Message Redirect forward MENU message to TX RS232 port (Auxiliary mode) instead OSD.
 Menu 76 Command Redirect run RS232 command from Web or telnet port (Auxiliary mode).
 Menu 80~85 Fix selected function not follow the channel, only available when free routing enabled.
 Menu 90~103 Only available when video wall function enabled..
Keypad Function:
You can use RS-232 Keypad or terminal program with number key to emulate IR remote operation.
Before using RS-232 keypad you have to select Keypad by Menu 56 RS-232 Select, and set RS-232 baudrate by Menu 60
Auxiliary Baudrate.
Key Description
0~9 Enter number
+ Increase value
- Reduce value
. or # Previous value
Enter Confirm
* or Esc or Clear Cancel
/ Call MENU
Press Clear four times then press Enter Call MENU

RS-232 Control:
In RS-232 extender mode, user could use RS-232 port of transmitters to operate/setup the receivers at
same channel by program like Hyper Terminal which built-in Windows XP and before version.
Hyper Terminal setting:〔115200 bps (8-N-1), Flow control: None〕(Properties -> Settings -> ASCII
Setup… and select “Send line ends with line feeds” &”Echo typed characters locally”)
★We recommend set the RS232 routing for all receivers to one transmitter to avoid RS232 connection
broken by video channel switching.
Command format: >CMD_Address> Command Parameters
Address, command and parameters are char, not hex code
Enter (LF or CR+LF) is required to execute the command
All accord receivers will run the command and parameters, we also add 3 kinds of user defined numbers
except MAC & IP (Device No、Group No、Party No) for flexible application:
Mxxxxxx The last 6 digits of MAC Address of receiver e.g.: 2218680123AB = M0123AB
Ixxxx The last 2 column of IP Address (HEX) of receiver e.g.: 169.254.012.034 = I0C22
Dxxx Device No e.g.: Device No 123 = D123
Gxx Group No e.g.: Group No 12 = G12
Pxx Party No e.g.: Party No 34 = P34
Cxxx Channel No e.g.: Channel 123 = C123
ALL All receivers
Response format: <ACK_Address< Response character
Receivers will response message to transmitter as above format and send Newline after
When send command to multiple receivers(address as Gxx, Pxx, Cxxx, and ALL) they will not response.

Command and Parameters List:
Command Parameters Description Remark
CHANNEL
? Show current channel number
Transmitter not support
parameter NAME
Receiver not support
parameter CHECK
[ 0~999 ] Switch to specified channel
[ 0~999 ] NAME ? Check current channel name
[ 0~999 ] NAME “string” Set channel name, 28 character MAX
NAME ? Show channel name setting
NAME [ ENABLE | DISABLE ] Enable/disable channel name
NAME CLR Clear all channel name
NAME IMPORT Import channel name
FAST ? Status of current fast switch
FAST [ ENABLE | DISABLE ] Enable/disable fast switch
CHECK ? Status of channel conflict check
CHECK [ ENABLE | DISABLE ] Enable/disable channel conflict check
FAVORITE
? Usage of favorite channel (MAX.32)
Transmitter not support
parameter FAVORITE
ADD Add current to favorite channel
ADD [ 0~999 ] Add specified channel to favorite
DEL Delete current from favorite channel
DEL [ 0~999 ] Delete specified channel from favorite
CLR Clear favorite channel list
ONLY ? Status of favorite channel only
ONLY [ ENABLE | DISABLE ] Enable/disable favorite channel only
AUTO ? Status of auto sort favorite channel
AUTO [ ENABLE | DISABLE ] Enable/disable auto sort favorite
SORT Sort favorite channel immediately
VIDEO
FUNC ? Status of video extension
Transmitter not support
parameter ROUTING,
SELECT and
CUSTOMIZE, RESUME,
PAUSE, BLACK
Receiver not support
parameter QUALITY
and DITHER
FUNC [ ENABLE | DISABLE ] Enable/disable video extension
ROUTING ? Status of video routing
ROUTING [ FOLLOW | 0~999 ] Set video routing follow or specified
SELECT ? Status of video output resolution
SELECT [ 0~9 | 10 ] Set output resolution, 10=customize
CUSTOMIZE ? Status of customize resolution
CUSTOMIZE integer Set customize resolution
QUALITY ? Status of video quality
QUALITY [ 0 | 1~5 | 6 ] Set video quality
DITHER ? Status of video dither
DITHER [ 0 | 1~2 ] Set video dither
EDID Update EDID from TX or monitor of RX
RESUME Resume stream
PAUSE Pause stream
BLACK Stop stream and send black screen
VIDEOWALL
FUNC ? Status of video wall function
Transmitter support FUNC
only
FUNC [ ENABLE | DISABLE ] Enable/disable video wall
MODE ? Status of video wall mode
MODE [ ENABLE | DISABLE ] Set video wall mode/single mode
OW ? Show outer width of monitor
OW [ 0~65535 ] Set outer width of monitor
OH ? Show outer height of monitor
OH ? [ 0~65535 ] Set outer height of monitor
VW ? Show width of viewable area
VW ? [ 0~65535 ] Set width of viewable area
VH ? Show height of viewable area
VH ? [ 0~65535 ] Set height of viewable area
MAX_ROW ? Show maximum row of video wall
MAX_ROW 0~7 Set the row 1~8 of video wall
MAX_COLUMN ? Show maximum column of video wall
MAX_COLUMN [ 0~15 ] Set the column 1~16 of video wall
ROW? Show position in row
ROW [ 0~7 ] Set position in row
COLUMN ? Show position in column
COLUMN [ 0~15 ] Set position in column
STRETCH ? Status of stretch type
STRETCH [ 0~1 ] Set stretch, 0 = Fit In, 1 = Stretch Out
ROTATE ? Status of rotate type
ROTATE [ 0~7 ] Set rotate, 0 = default
SHIFT_V Status of vertical shift
SHIFT_V [ 0~399 | 400 | 401~801 ] 0~399: up, 400:default, 401~801: down
SHIFT_H ? Status of horizontal shift
SHIFT_H [ 0~399 | 400 | 401~801 ] 0~399: up, 400:default, 401~801: down
SCALE_V ? Status of vertical scale
SCALE_V [ 0~255 ] Set vertical scale
SCALE_H ? Status of horizontal scale
SCALE_H [ 0~255 ] Set horizontal scale
ENABLE %1_%2_%3_%4 %1 = MAX_ROW, %2 = MAX_COLUMN,
%3 = ROW, %4 = COLUMN
MONITOR_INFO %1_%2_%3_%4 %1 = VW, %2 = OW, %3 = VH, %4 = OH

AUDIO
FUNC ? Status of audio extension
Transmitter not support
parameter ROUTING
FUNC [ ENABLE | DISABLE ] Enable/disable audio extension
ROUTING ? Status of audio routing
ROUTING [ FOLLOW | 0~999 ] Set audio routing follow or specified
SELECT ? Status of audio setting
SELECT [ 0~2 ] Select audio of TX input/ Rx output
IN ? Status of audio input volume
IN [ 0 | 1~100 ] Set audio input volume (%), 0 = Mute
OUT ? Status of audio output volume
OUT [ 0 | 1~100 ] Set audio output volume (%), 0 = Mute
USB
FUNC ? Status of USB extension
Transmitter not support
parameter ROUTING
and REQUEST
FUNC [ ENABLE | DISABLE ] Enable/disable USB extension
ROUTING ? Status of USB routing
ROUTING [ FOLLOW | 0~999 ] Set USB routing follow or specified
REQUEST Request USB access (multicast only)
RS232
FUNC ? Status of RS232 extension
Transmitter not support
parameter ROUTING
FUNC [ ENABLE | DISABLE ] Enable/disable RS232 extension
ROUTING ? Status of RS232 routing
ROUTING [ FOLLOW | 0~999 ] Set RS232 routing follow or specified
CTRL ? Status of RS232 control setting
CTRL [0~2 ] 0=disable, 1=enable, 2=insensitive
BAUD ? Status of baud rate
BAUD [ 0~9 ] 0=115200, 1=57600, 2=38400… 9=300
NEWLINE ? Status of newline format
NEWLINE [ 0~3 ] 0=Linux, 1=Windows, 2=Mac, 3=Other
TRIGGER ? Status of trigger
TRIGGER [ 0~3 ] 0=Linux, 1=Windows, 2=Mac, 3=Other
IR
FUNC ? Status of IR extension
Transmitter not support
parameter ROUTING
FUNC [ ENABLE | DISABLE ] Enable/disable IR extension
ROUTING ? Status of IR routing
ROUTING [ FOLLOW | 0~999 ] Set IR routing follow or specified
CTRL ? Status of IR control setting
CTRL [ ENABLE | DISABLE ] Enable/disable IR control
ID ? Status of IR remote ID
ID [ 0~10 ] Set IR remote ID
KEY [ 0~32 ] ? Status of IR key setting
KEY [ 0~32 ] = address, command Set mapping of third party IR remote
KEY IMPORT Import IR key setting
BLOCK ? Status of IR quick block
BLOCK [ ENABLE | DISABLE ] Enable/disable IR quick block
CEC
FUNC ? Status of CEC function Support 4K model only
Transmitter not support
parameter CTRL
FUNC [ ENABLE | DISABLE ] Enable/disable CEC function
CTRL ? Status of CEC control
CTRL [ ENABLE | DISABLE ] Enable/disable CEC control
BUTTON
CTRL ? Status of button control
CTRL [ ENABLE | DISABLE ] Enable/disable button control
LOCK ? Status of button lock
LOCK [ ENABLE | DISABLE ] Enable/disable button lock
HDMI
CTRL ? Status of HDMI 5V control
Transmitter not support
parameter CTRL
CTRL [ ENABLE | DISABLE ] Enable/disable HDMI 5V control
HDCP ? Status of HDCP Always On
HDCP [ ENABLE | DISABLE ] Enable/disable HDCP Always On
HDCP 2.2 ? Status of HDCP 2.2 Always On
HDCP 2.2 [ ENABLE | DISABLE ] Enable/disable HDCP 2.2 Always On
SCREEN
? Status of screen settings
Transmitter not support
this command
[ ON | OFF ] Screen on/off
SAVER ? Status of screen saver
SAVER [ ENABLE | DISABLE ] Enable/disable screen saver
OPTION ? Status of behavior after screen off
OPTION [ 0~2 ] Set behavior after screen off
OSD
ON “string” Show “string” on screen (30 seconds)
Transmitter not support
this command
OFF Turn off OSD immediately
OFF ? Status of OSD duration (ms)
OFF [ 0~65535 ] Set duration of OSD (ms)

ROUTING
? Status of free routing Transmitter not support
parameter LOAD and
SAVE
[ ENABLE | DISABLE ] Enable/disable free routing
LOAD [ 0~4 ] Load free routing setting
SAVE [ 0~4 ] Save free routing setting
NET
RECONNECT Reconnect with TX/RX
Transmitter not support
parameter DISCONNECT
DISCONNECT Disconnection (keep routing channel)
STOP Stop all connection (Include routing channel)
MULTICAST ? Status of multicast
MULTICAST [ ENABLE | DISABLE ] Disable=unicast
JUMBO_FRAME ? Status of Jumbo Frame
JUMBO_FRAME [ ENABLE | DISABLE ] Enable/disable Jumbo Frame
IP_MODE ? Status of IP mode
IP_MODE [ 0~2 ] 0=Auto, 1=static, 2=DHCP
IP ? Status of static IP address
IP [ xxx.xxx.xxx.xxx ] Set static IP address
NETMASK ? Status of subnet mask (static IP mode)
NETMASK [ xxx.xxx.xxx.xxx ] Set subnet mask (static IP mode)
GATEWAY ? Status of gateway (static IP mode)
GATEWAY [ xxx.xxx.xxx.xxx ] Set gateway (static IP mode)
QUERY
IP Status of current IP address
MAC Status of MAC address
RESOLUTION Status of video resolution
VERSION Status of firmware version
AUXILIARY
BAUD ? Status of auxiliary baudrate
BAUD [ 0~9 ] 0=115200, 1=57600, 2=38400… 9=300
NEWLINE ? Status of auxiliary newline
NEWLINE [ 0~3 ] 0=Linux, 1=Windows, 2=Mac, 3=Other
TRIGGER ? Status auxiliary trigger
TRIGGER [ 0~3 ] 0=Linux, 1=Windows, 2=Mac, 3=Other
VERSION Status of auxiliary versions
LOAD DEFAULT Load default to current setting When load default the
settings will be auto saved.
[ 0~4 ] Load system setting from bank 0~4
SAVE Save current system setting
[ 0~4 ] Save system setting to bank 0~4
REBOOT Reboot
CONSOLE string Run console API command For debug using, if input
incorrect value will cause
unpredictable problem, adjust
by professional installer only.
SYSTEM [ 0~255 ] ? Status of system function
[ 0~255 ] Set system function
APPLICATION [ 0~255 ] ? Status of application function
[ 0~255 ] Set application function
※RS232 command not support backspace, delete or up, down, left, right to modification. If you enter command or parameters with
wrong typing, please enter newline and re-enter full command and parameters again.
※Parameters with gray shading means need to reboot to take effect.
※ The maximum of OSD_ON is 30 characters per line, maximum 127 charcters, not support comma sign「,」, colon「:」 and double
quotation marks「”」, some characters must use \x## format to display, ## means the characters number in ASCII HEX code
e.g.: \x0a is line feed, \x28 is ( brackets sign, \x22 is “ sign
Example:
>CMD_MF01234> CHANNEL 12 (Set receiver which last 4 digits MAC Address is 1234 to Channel 12)
(HEX code: 3E 43 4D 44 5F 4D 46 30 31 32 33 34 3E 20 43 48 41 4E 4E 45 4C 20 31 32 0D 0A)
<ACK_MF01234< OK (Receiver which last 4 digits MAC Address is 123456 response “OK”)
(HEX code: 3C 41 43 4B 5F 4D 46 30 31 32 33 34 3C 20 4F 4B 0D 0A)
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>CMD_I0A12> CHANNEL 3 (Set receiver which IP Address is 169.254.10.18 to Channel 3
(HEX code: 3E 43 4D 44 5F 49 30 41 31 32 3E 20 43 48 41 4E 4E 45 4C 20 33 0D 0A)
<ACK_I0A12< OK (Receiver which IP Address is 169.254.10.18 response “OK”)
(HEX code: 3C 41 43 4B 5F 49 30 41 31 32 3C 20 4F 4B 0D 0A)
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>CMD_G34> CHANNEL 5 (Set receivers which Group No is 34 to Channel 5)
(HEX code: 3E 43 4D 44 5F 47 33 34 3E 20 43 48 41 4E 4E 45 4C 20 35 0D 0A) (No response from multiple receivers)
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>CMD_ALL> !OSD_ON Hello! \x28123\x29 \x22ABC\x22 (Show「Hello! (123) “ABC”」to all monitor and send response)
(HEX code: 3E 43 4D 44 5F 41 4C 4C 3E 20 21 4F 53 44 5F 4F 4E 20 48 65 6C 6F 21 20 5C 78 32 38 31 32 33 5C 78 32 39 20 5C 78 32
32 41 42 43 5C 78 32 32 0D 0A) (No response from multiple receivers)
>CMD_ALL> OSD_OFF 10000 (All receiver turn off OSD after 10 seconds)
(HEX code: 3E 43 4D 44 5F 41 4C 4C 3E 20 4F 53 44 5F 4F 46 46 20 31 30 30 30 30 0D 0A)

Caution:
1. Transmitter/receiver boot time require 30 seconds and will be able to control after booting, First time
reboot after reset to default will be longer than 30 seconds.
2. Not recommend to work with existing LAN connection to avoid large video, data transmission or
multicast packets to slow down your other LAN devices.
3. Gigabit switching hub muse support IGMP and Jumbo Frame over 8K in order to achieve the best
quality
4. If monitor shows green screen, please check if the switch running under gigabit and IGMP/Jumbo
Frame function enabled.
5. If video not smooth please check if IGMP function enabled or bandwidth of switch closes to maximum.
6. If UTP and SFP connected together the first connected one will get the priority, the other one will
online automatically once another one failed.
7. If Ethernet is not connected may cause unpredictable problem or OSD message error, please connect
to the Ethernet and reboot.
8. Default EDID is 1080p 7.1 audio, you can use Menu function 96 to copy EDID from monitor of RX.
9. If the monitor of RX shows shortly then turns into black but OSD shows properly, please check the
HDCP version of monitor support is tally with the source required, and the casting mode of TX/RX
are the same and the HDCP setting is correct.
10. If receiver switches to transmitter which no video input, it will show blank screen or last still image for
seconds.
11. Fast switch mode might cause screen or audio abnormal briefly when switch channel.
12. When output resolution is fixed, the screen or OSD might be cut a little if the source resolution is
much different with the output (like 4K downscale to 720p).
13. In high resolution (like 1080p or 4K) the OSD response will be delayed a little bit.
14. In video wall mode, the OSD may not be in correct size and position
15. When value over 999, the Seven-segment display of HKM02B-4K will show U or F.
16. RS-232 only support data transmission (TXD, RXD), not support hardware handshake (RTS, CTS,
DTR, DSR…)
17. Power from power adapter with priority than power from PoE.
18. The front panel IR will be disable when external IR cable plugged.
19. If IR remote not work properly, please check the battery (especial in low temperature) and reset IR
ID.
20. Audio in of RX only works at unicast mode, and the audio in and audio out of TX must be connected.
21. Audio in of RX is designed for mono Mic in, not for stereo Line in.
22. When using computer or mobile APP management the IP address should be set in same network
segment.
23. Computer software and APP operation please refer to software operating instruction.
24. Not recommend control by panel, computer software and APP at the same time to prevent conflict.

APP Control Function:
APP name: Stream & Videowall Management
Google Play Download Link
https://play.google.com/store/apps/details?id=com.sct.sctcontrollcenter1
iTunes Download Link
Google Play Download QR code iTunes Download QR code
For APP instruction please refer attached software CD
To avoid confusion we do not recommend install multiple APP in one device

Web Setting Function:
System provide detail settings over web browser, you could input the IP address of transmitter / receiver
at link column of browser if you know the exact IP address of them.
How to get the IP address of receiver:
1. Connect monitor with receiver, local IP shows on right bottom screen when receiver booting or
transmitter not connected( or no video input)
2. Press remote control button MENU, 1, ENTER (Network Information), it will shows the receiver IP
Address on screen
How to get the IP address of transmitter:
1. Connect monitor with receiver, connect receiver with transmitter and set in the same
channel, remote IP shows on right bottom screen when receiver booting or no video input from
transmitter
Set IP address of transmitter/receiver by command:
Press and hold panel button “+” then power on to set factory default then enter engineering mode. In
engineering mode Power and Link LED will be flash together, IP address of unit will be set to Static IP
192.168.0.88 temporarily, login to the web page by browser and change IP settings in API commands
column as below(x can be one of numbers 1~254):
astparam s ip_mode static
astparam s ipaddr 169.254.x.x
astparam s netmask 255.255.0.0
astparam save
Commands can be applied one by one, or connected them by “;” to apply at once as below:
astparam s ip_mode static;astparam s ipaddr 169.254.x.x;astparam s netmask
255.255.0.0;astparam save
Also you could use private IP address/subnet mask you preferred like 192.168.x.x/255.255.255.0

Bonjour plug-in installation:
a. Click “BonjourSDKSetup.exe” to install Bonjour plug-in for Internet Explorer.
b. Click “Next” to continue.
c. Click “I accept the terms in the license agreement” to continue.
d. Click “Next” to continue.

e. Click “Install” to start installation.
f. Click “Finish” to exit installation.
g. Right click on “My Network Place”  “Properties” then right click on “Local Area Connection” 
“Properties” then double click on “Internet Protocol (TCP/IP)” to setting as below:
(IP address 169.254.111.111, sub mask 255.255.0.0)