PTN SC51T User manual

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SC51T
PTN Compact Scaler Switcher
All Rights Reserved
Version: SC51T (with PoC) 2013V1.0
User Manual

Compact Scaler Switcher (with PoC)
PTN Electronics Limited www.PTN-electronics.com
NOTICE:
1. Please read this user manual carefully before using this product.
2. The item PoC is short for Power over Cable.
3. The receiver works with SC51T can only be TPHD402PR.
4. The item “far-end”means the device (e.g. display device, 3rd party RS232 device
etc) connected with TPHD402PR.
5. Take notice to 4.6 Instructions of VGAConverting Cable when using.
Update History
Version
Date
Update Content
1.0
2013.11.19
First version.
This manual is for operation instruction only, not for any maintenance usage. The
functions described in this version are updated till November 2013. Any changes of
functions and parameters since then will be informed separately. Please refer to the
dealers for the latest details.
This manual is copyright PTN Electronics Limited. All rights reserved. No part of
this publication may be copied or reproduced without the prior written consent of
PTN Electronics Limited.
All product function is valid till 2013-11-19.

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Table of Contents
1. Introduction.................................................................................................................1
1.1 Introduction to SC51T........................................................................................1
1.2 Features ............................................................................................................1
1.3 Package Contents.............................................................................................1
2. Product Appearance ...................................................................................................2
2.1 SC51T Front Panel............................................................................................2
2.2 SC51T Rear Panel.............................................................................................3
3. System Connection.....................................................................................................5
3.1 Usage Precautions............................................................................................5
3.2 System Diagram................................................................................................5
3.3 Connection Procedure.......................................................................................5
3.4 Connection of Microphone.................................................................................6
3.5 Application.........................................................................................................8
4. System Operations .....................................................................................................8
4.1 Operations of Buttons........................................................................................8
4.1.1 Resolution Adjusting................................................................................8
4.1.2 Switching Operations...............................................................................8
4.1.3 Software Updating.................................................................................10
4.1.4 Volume Adjusting...................................................................................10
4.1.5 Used in OSD Menu................................................................................10
4.2 Operations of IR ..............................................................................................11
4.2.1 IR Remote .............................................................................................11
4.2.2 IR Operations ........................................................................................12
4.3 Operations of CEC Function............................................................................13

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4.4 Operations of RS232 Control...........................................................................14
4.4.1 Installation/uninstallation of RS232 Control Software............................14
4.4.2 Basic Settings........................................................................................14
4.4.3 RS232 Communication Commands ......................................................15
4.4.4 Control SC51T or 3rd Party Device from Local......................................20
4.4.5 Control SC51T from Local or Remote....................................................20
4.5 Operations in OSD Menu.................................................................................21
4.5.1 Option....................................................................................................22
4.5.2 Picture ...................................................................................................23
4.5.3 Sound....................................................................................................24
4.5.4 Setup.....................................................................................................25
4.6 Instructions of VGA Converting Cable .............................................................25
5. Specification .............................................................................................................27
6. Panel Drawing ..........................................................................................................28
7. Troubleshooting & Maintenance ...............................................................................29
8. Safety Operation Guide ............................................................................................30
9. After-sales Service....................................................................................................31

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1. Introduction
1.1 Introduction to SC51T
SC51T is a compact mini scaler switcher with 5 video inputs (3 HDMI, 2 VGA) and 6
audio inputs (3 HDMI audio & 2 VGAaudio: switched following the video; 1 MIC audio
input). As the VGA input supports VGA, YPbPr and C-video, so the scaler switcher is
compliant with multiple video signals.
SC51T scales & switches any video signal to HDMI output and HDBaseT output
(supports PoC, connects with TPHD402PR, max transmission distance is 60 meters).
And with 1 IR IN, 5 IR OUT & 1 RS232, IR & RS232 signal can be transmitted
bi-directionally between SC51T and TPHD402PR.
1.2 Features
Compliant with HDCP.
Supports CEC, with commands to enable/disable this function.
Supports video source auto-switching function.
Bi-directional IR & RS232 control.
Output resolutions selectable to assure preferred output, and supports various
output resolutions, such as 1920x1200, 1920x1080, 1600x1200, 1360x768,
1280x800, 1280x720, 1024x768.
VGA video supports C-video, YPbPr and VGA.
Supports online software upgrading.
48V phantom power to support condenser microphone.
MIC port supports balance/unbalance signal, suppress the external noise effectively.
3-level MIC input, supports condenser microphone, dynamic microphone and
wireless microphone.
Controllable via button, IR & RS232.
Powerful OSD function.
1.3 Package Contents
1 x SC51T
2 x Mounting ears (separate from SC51T)
1 x Power Adapter (DC 12V)
1 x IR remote (Cell battery is not included)
1 x IR receiver (with carrier wave)
5 x IR emitters

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1 x RS232 cable
2 x VGA converting cables (male VGAto female YPbPr, length: 400 mm)
7 x Captive screw connectors
4 x Screws (black color)
6 x Plastic cushions
1 x User Manual
Notes：Please confirm if the product and the accessories are all included, if not, please
contact with the dealers.
2. Product Appearance
2.1 SC51T Front Panel
①Power indicator.
Turns red when power on, turns green when in standby mode.
②LCD screen
Shows the real-time system working status.
③SOURCE/AUTO
Used as video source selection button, press to select one source, press again
to select next source, switching circularly between HDMI1, HDMI2, HDMI3,
VGA1 and VGA2. The LCD screen will show the name of selected source.
Used as switching mode selection button, press and hold on 3 seconds or more
to enter in Auto-switching mode, press and hold on 3 seconds or more again to
enter in Manual-switching mode.
④ENTER
Used to confirm selection when in menu.

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⑤RESO/AUTO
Used as output resolution manual switching button, select between 1360x768,
1280x800, 1280x720, 1024x768, 1920x1200, 1920x1080 and 1600x1200.
Used as output resolution switching mode selection button, press and hold on 3
seconds or more to enter in Auto-switching mode, press and hold on 3
seconds or more again to enter in Manual-switching mode.
⑥MENU/FWUPDATE
Used as menu button, press it to enter in OSD menu.
Used as software updating button, press and hold on 7 seconds or more to
enter in software updating procedure.
⑦VOL-
Used as volume down button.
Used as direction button NEXT when in menus.
⑧MIC+
Used as MIC volume up button.
Used as direction button MOVE UP when in menus.
⑨VOL+
Used as volume up button.
Used as direction button PREVIOUS when in menus.
⑩MIC-
Used as MIC volume down button.
Used as direction button MOVE DOWN when in menus.
2.2 SC51T Rear Panel

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①AUDIO INPUT
3 HDMI audio & 2 VGA audio inputs. User can choose any one audio (embedded
HDMI audio or external input audio) for HDMI audio input by using RS232
commands.
②AUDIO OUTPUT
Audio output port, the audio comes from the input audio corresponding to the
selected video source and mixed with MIC audio.
③IR OUT
5 ports in total. Connects with IR emitter, used to control local source device or
SC51T from remote, switches following the corresponding video source.
④IR IN
Connects with IR receiver (with carrier wave only), to receive IR signal send by the
IR remote or remote controller of other input/output device.
⑤FIRMWARE
USB port, connects with USB flash disk or other storage which is with update file
inside, to update the system firmware.
⑥RS232
Serial control port, 3p captive screw connector, connects with a control device (such
as a computer) to control SC51T or other device connected with TPHD402PR.
⑦12V DC
Power port. Connects with the 12V DC power adapter.
⑧MIC
a) MIC port, connects with microphone.
b) Dial switch, 3 levels: 48V phantom power mode (connects with condenser
microphone), MIC mode (connects with dynamic microphone) and LINE mode
(connects with wireless microphone or line audio).
⑨VIDEO INPUT
Video input ports, includes 3 HDMI inputs & 2 VGAinputs. VGAports supports
YPbPr, C-video and VGA format. Factory default is VGA format.
⑩OUTPUT
c) HDMI local output
d) HDBaseT output, supports PoC.
The audio part of the two ports are same, and is mixed with MIC audio and HDMI
embedded audio (output audio), and if disable HDMI embedded audio output, then there
will be no audio output through these ports.

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3. System Connection
3.1 Usage Precautions
1) System should be installed in a clean environment and has a prop temperature and
humidity.
2) All of the power switches, plugs, sockets and power cords should be insulated and
safety.
3) All devices should be connected before power on.
3.2 System Diagram
3.3 Connection Procedure
Step1.Connect HDMI source devices (e.g. Blue-ray DVD) to HDMI input ports of SC51T
with HDMI cable. Connect VGAsource device (e.g. PC) to VGA input ports of
SC51T with VGA cable.
Step2.Connect the corresponding audio source to the corresponding AUDIO INPUT
port of SC51T with audio cable one to one. The audio of HDMI can be embedded
or external by sending right command.
Step3.Connect HDMI display device to HDMI output port of SC51T with HDMI cable.
Step4.Connect TPHD402PR to HDBaseT output port of SC51T with twisted pair.
Step5.Connect speaker, headphone or PTN amplifier to AUDIO OUTPUT port of
SC51T.
Step6.Connect control device (e.g. PC) to RS232 port of SC51T or TPHD402PR
(bi-directional RS232 control, either is available).
Step7.Both SC51T and TPHD402PR have IR IN and OUT. When one model is used for

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IR signal receiver, the IR signal must be sent out by the other model.
For example: When “IR IN” of SC51T connects with an IR receiver, the IR
transmitter must connect to IR OUT of TPHD402PR.
The IR signal can be transmitted bi-directionally between SC51T and
TPHD402PR.
Step8.Select MIC level and connect right microphone to MIC input port. MIC audio will
be transmitted to AUDIO OUTPUT port and mixed with source audio.
Step9.Connect DC12V power adaptor to the power port (TPHD402PR is able to get
power from SC51T).
3.4 Connection of Microphone
SC51T provides with one 3-level microphone input, to accommodate different
microphone input modes, including 48V phantom power mode, MIC mode & LINE mode.
48V phantom power input
When switch to “48V” (It has a good frequency characteristic, high input impedance and
high sensitivity in this mode), the MIC input will provide a 48V phantom power. This is
only used for condenser microphone.
Connection is: “+” connects to positive, “-” connects to negative and “ ” to ground.
MIC input
When switch to “MIC” (It has a low frequency characteristics, and wide frequency
response in this mode), the microphone input is used for connecting with dynamic
microphone. There are two different connections:
1) Unbalanced connection:
“+” and “ ” connect to ground, and “-” connects to signal.
“-”and “ ” connect to ground, and “+” connects to signal.

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2) Balanced connection: “+” connects to positive, “-” connects to negative and “ ”
connects to ground.
LINE input
When switch to “LINE” (It has a low frequency characteristics, and wide frequency
response in this mode), the microphone input is used for connecting with line audio or
wireless microphone output. There are two different connections:
Unbalanced connection:
“+” and “ ” connect to ground, and “-” connects to signal.
“-”and “ ” connect to ground, and “+” connects to signal.
b) Balanced connection: “+” connects to positive, “-” connects to negative and “ ”
connects to ground.

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3.5 Application
SC51T has a good application in various occasions, such as computer realm,
monitoring, conference room, big screen displaying, television education, command &
control center and smart home etc.
4. System Operations
4.1 Operations of Buttons
The buttons can be used for output resolution adjusting, switching operations, software
updating, volume adjusting and operations in menus.
4.1.1 Resolution Adjusting
Supports auto-adjusting and manual-adjusting. Press and hold on RESO/AUTO button
for 3 seconds or more to enter in auto-adjusting/manual-adjusting mode.
Notice: In auto-adjusting mode, SC51T will choose the resolution of the display device
at the far-end as the preferred resolution.
If need to choose the resolution of local HDMI display device:
Cut off the power of SC51T and break the connection between SC51T and
TPHD402PR.
Turn on the power of SC51T.
Gets the resolution of local HDMI output device.
Connect TPHD402PR to SC51T.
4.1.2 Switching Operations
Supports auto-switching and manual-switching. Press and hold on SOURCE/AUTO
button for 3 seconds or more to enter in auto-switching/manual-switching mode.
The display result is showed as below:
The display result will be showed for 2 seconds.
IN: HDMI1 MANUAL
1280 X 720
IN: HDMI1 AUTO
1280 X 720

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The auto-switching mode follows the listed principles:
New input principle
Once detecting a new input signal, SC51T would switch to this new signal
automatically.
Power rebooting principle
SC51T offers the function to remember the signal last displayed when rebooting.
Once rebooting, SC51T will automatically enter in auto-switching mode, and then
detect all inputs and memorize their connection status for future rebooting using.
And if the signal last displayed is still available, then it will choose the signal to output.
If not, there will be no signal on outputs.
Signal removing principle
Once removing the current display signal, SC51T will detect all input signals with
priority from INPUT 1 to INPUT 5. It will transfer the signal firstly detected to be
available to outputs.
Notice: Auto-switching function works only when input with new signal, remove a signal
or power rebooting.
Operation Examples:
Connect the INPUT 2, INPUT 4, and INPUT 5 ports to the source devices, select
INPUT 4 to outputs.
Press and hold on the front key SOURCE/AUTO for 3 seconds or more to enter in
auto-switching mode.
No signal removing or new input, SC51T just works in auto-switching mode, and
take no action (Output from INPUT 4)
Connect INPUT 3 with a source device, and then it will choose INPUT 3 to output.
Remove the signal of INPUT 3, SC51T will detect from INPUT 1 to INPUT 5. And
when it detects that input 2 is available, it will choose INPUT 2 to output.
Cut off the power of SC51T, then reboot.As SC51T is in auto-switching mode, then it
will choose INPUT 2 to output.
Auto-switching function

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4.1.3 Software Updating
Software updating means to update the inside program of this scaler switcher.
SC51T supports software updating via USB flash disk. The Operation is:
1) Copy the file “MERGE.bin” to a USB flash disk. (The “MERGE.bin” file is
provided/authorized by PTN engineering department or from our website:
http://www.PTN-electronics.com)
2) Plug the USB flash disk to the SC51T USB port on its front panel.
3) Press the button “MENU” for 7 seconds or more to update the software
automatically.
Or press this button for 6 seconds until it comes out an update OSD and then select
“Option”“Software Update” to enter in update procedure.
Or send command 50689% to update software.
4.1.4 Volume Adjusting
Not in OSD menu, press VOL -- to decrease line volume, VOL + to increase.
Not in OSD menu, press MIC –to decrease MIC volume, MIC + to increase.
4.1.5 Used in OSD Menu
Press MENU button to enter in OSD menu, and use UP, DWON, LEFT, RIGHT button
to select, press ENTER button to confirm selection. MENU button also can be used to
exit present menu level by level until exit the OSD menu.

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4.2 Operations of IR
4.2.1 IR Remote
As IR signal can be transmitted bi-directionally between SC51T and TPHD402PR, it is
able to use the IR remote at the far-end to control SC51T or HDMI source devices (via
CEC function buttons).
①Standby button
To enter in/exit standby mode.
②Input channel selection buttons
INPUT 1 is for HDMI1, INPUT 2 for
HDMI2…INPUT 5 for VGA2. AUTO button:
Enable/disable auto-switching mode.
③Volume adjusting buttons
MIC-/+: decrease/increase MIC volume
LINE-/+: decrease/increase line volume
MIC MUTE: mute/unmute MIC audio
LINE MUTE: mute/unmute line audio
④Menu operation buttons
MENU: press to enter in OSD menu or used to
return to previous menu. EXIT: exit OSD menu.
OK: confirm button. ,,, : UP/DWON/LEFT/
RIGHT button, for value setting or page-turn,
Buttons in area a are also able to work in CEC
mode to enter the menu of HDMI source device.
P.P, ZOOM, S.M: shortcut button, to select display
mode.
⑤Resolution selection buttons
Select the resolution by pressing corresponding
button. AUTO is for auto-selecting best resolution.
⑥CEC function buttons
These are for HDMI input signal which supports
CEC. Includes PLAY, PAUSE, STOP, MENU, REV
(reverse) and FWD (forward).

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4.2.2 IR Operations
The 5 IR OUT ports are corresponding to the 5 video inputs one to one, and switch
following the corresponding video source.
1) Control far-end device from local
To control SC51T or far-end display device from local by using corresponding remote
controller.
2) Control local device from remote
To control SC51T or local source device from remote by using corresponding remote
controller.

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4.3 Operations of CEC Function
Supports CEC and CEC standby functions, and can be enabled/disabled through
RS232 commands or OSD menu. If the HDMI source device supports CEC, and when
SC51T enter in standby/startup mode, then the source device will automatically enter in
standby/startup mode.
And due to CEC function, user can control HDMI source device with basic operations
(play, pause, fast forward, fast reverse, menu etc). So user is able to control SC51T and
HDMI source device via the IR remote of SC51T.
Commands for CEC function: “50686%”(enable CEC) and “50687%”(disable CEC).
The working status related to CEC and STANDBY is showed as below:
Situation
Working Status
CEC: on, Standby: on
Press STANDBY button on IR remote, SC51T enters in
standby mode, so do all HDMI source devices.
CEC: on, Standby: off
Press STANDBY button on IR remote, SC51T enters in
standby mode, HDMI source devices keep on.
CEC: on
Use CEC function buttons, ▲,▼, , and OK buttons on
IR remote to control HDMI source devices, include play,
pause, fast forward, fast reverse and operations in menu.
CEC: off
Unable to control HDMI source devices through IR remote

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CEC: Control HDMI source devices by IR remote of SC51T
4.4 Operations of RS232 Control
As RS232 can be transmitted bi-directionally between SC51T and TPHD402PR, so it is
able to control a third party RS232 device from local or control SC51T from remote.
When to control a third party RS232 device, the baud rate of this device should be 2400,
4800, 9600, 19200, 38400, 57600 or 115200.
4.4.1 Installation/uninstallation of RS232 Control Software
Installation Copy the control software file to the computer connected with SC51T.
Uninstallation Delete all the control software files in corresponding file path.
4.4.2 Basic Settings
First to connect SC51T with all input devices and output devices needed, then to
connect it with a computer which is installed with RS232 control software. Double-click
the software icon to run this software.
Here we take the software CommWatch.exe as example. The icon is showed as below:
The interface of the control software is showed as below:

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Please set the parameters of COM number, bound rate, data bit, stop bit and the parity
bit correctly, and then you are able to send command in Command Sending Area.
4.4.3 RS232 Communication Commands
Communication protocol: RS232 Communication Protocol
Baud rate: 9600 Data bit: 8 Stop bit: 1 Parity bit: none
Command
Function
Feedback Example
50600%
MUTE line audio
LINE Mute on
50601%
UnMute line audio
LINE Mute off
50602%
Line audio volume up
LINE Volume: XX
50603%
Line audio volume down
LINE Volume: XX
50604%
Lock the front panel buttons
key lock
50605%
Unlock the front panel buttons
key unlock
501XX%
Preset the volume. The XX is ranging from
00 to 99
LINE Volume: XX
502XX%
Preset the brightness. The XX is ranging
from 00 to 99
Brightness: XX
Parameter Configuration area
Monitoring area, indicates if the
command sent works.
Command Sending area

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503XX%
Preset the contrast. The XX is ranging from
00 to 99
Contrast: XX
504XX%
Preset the saturation. The XX is ranging
from 00 to 99
Saturation: XX
505XX%
Preset the sharpness. The XX is ranging
from 00 to 07
Sharpness: XX
50606%
Auto-adjust the input parameter(VGA only)
pc auto
50607%
Auto-adjust the color temperature
Color Temp: XX
50608%
ZOOM the image, set the aspect ratio
Aspect Ratio: XX
50609%
OK, for OSD selection
key: ok
50610%
LEFT button
key: left
50611%
RIGHT button
key: right
50612%
UP button
key: up
50613%
DOWN button
key: down
50614%
set the picture mode
Picture Mode : XX
50615%
SM audio mode
Sound Mode: XX
50616%
MENU button
key: menu
50617%
Reset to factory defaults
factory reset
50618%
EXIT button
key: exit
50619%
Change the resolution to 1360X768 HD
resolution:1360*768
50620%
Change the resolution to 1920X1200
WUXGA
resolution:1920*1200
50621%
Change the resolution to 1600X1200 UXGA
resolution:1600*1200
50626%
Change the resolution to 1024X768 XGA
resolution:1024*768
50627%
Change the resolution to 1280X720 720P
resolution:1280*720
50628%
Change the resolution to 1280X800 WXGA
resolution:1280*800
50629%
Change the resolution to 1920X1080 1080P
resolution:1920*1080
50630%
Check the volume level
LINE Volume: XX
MIC Volume: XX
50631%
Check the input source
Source: XXXXXX
50632%
Check the output resolution
Resolution: XXXXXXXX
50633%
Check the image mode
Picture Mode : XX
50634%
Check the audio mode
Sound Mode: XX
50635%
Check the image aspect ratio
Aspect Ratio: XX
50636%
Check the brightness
Brightness: XX
50637%
Check the contrast
Contrast: XX
50638%
Check the saturation
Saturation: XX
50639%
Check sharpness
Sharpness: XX
50640%
Check the color temperature
Color Temp: XX
50646%
Enable MIC Volume bar display
Volume Bar: Display