NTI XTENDEX ST-C5USBVA-300M User manual

MAN010 Rev 4/26/17
ST-C5USBV-300(M)
ST-C5USBVA-300(M)
ST-C5USBV2A-300
300 FOOT USB KVM EXTENDER
Installation and Operation Manual
XTENDEX®Series
ST-C5USBV-300
(Desktop Model)
ST-C5USBV-300M
(Rackmount Module)
UMTINT-xx-MM
(
Module cable- sold se
p
aratel
y
)

i
TRADEMARK
XTENDEX is a registered trademark of Network Technologies Inc in the U.S. and other countries.
COPYRIGHT
Copyright © 2007-2017 by Network Technologies Inc, all rights reserved. No part of this publication may be reproduced, stored in
a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise,
without the prior written consent of Network Technologies Inc, 1275 Danner Drive, Aurora, Ohio 44202. For more information
please contact Network Technologies Inc at [phone] (800-RGB-TECH) or [phone].
CHANGES
The material in this guide is for information only and is subject to change without notice. Network Technologies Inc reserves the
right to make changes in the product design without reservation and without notification to its users.
Note: CAT5 connection cable used between NTI XTENDEX Series Local and Remote or any XTENDEX Series products
should not be run underground, outdoors or between buildings.
WARNING: Outdoor or underground runs of CAT5 cable could be dangerous and will void the warranty.
!

ii
Table of Contents
Introduction....................................................................................................................................................................1
Features.......................................................................................................................................................................1
Types of User Input Devices Supported:.....................................................................................................................1
Operating Systems Supported ....................................................................................................................................2
Limitations....................................................................................................................................................................2
Materials.........................................................................................................................................................................3
Features and Functions................................................................................................................................................4
Preparation for Installation...........................................................................................................................................5
Installation......................................................................................................................................................................6
The Local Unit..............................................................................................................................................................6
Connect to the CPU..................................................................................................................................................6
Connect the Local Devices.......................................................................................................................................7
Connect the CAT5 Cable..........................................................................................................................................8
The Remote Unit..........................................................................................................................................................9
Connect the Remote Devices...................................................................................................................................9
Connect the CAT5 cable.........................................................................................................................................10
Rackmount Modules (optional).................................................................................................................................11
Mount the ST-C5RCK-12 Rackmount Extender Module Tray................................................................................11
Connect the CPU....................................................................................................................................................13
Connect the Devices...............................................................................................................................................13
Connect the CAT5 cable.........................................................................................................................................14
Plug-in and Boot Up...................................................................................................................................................15
Command Mode ..........................................................................................................................................................16
MAC Mode.................................................................................................................................................................17
DDC Support................................................................................................................................................................18
Automatic EDID Updates for ST-C5USBV(A)-300(M)............................................................................................18
Improved DDC Update Feature..............................................................................................................................18
Common Applications................................................................................................................................................19
Technical Specifications ............................................................................................................................................20
Interconnection Cable Wiring Method ......................................................................................................................21
Keyboard Translation .................................................................................................................................................22
Key Equivalents.........................................................................................................................................................22
SUN’s 16 Extra Keys.................................................................................................................................................22
Troubleshooting..........................................................................................................................................................24
Index.............................................................................................................................................................................25
Warranty Information..................................................................................................................................................25
Table of Figures
Figure 1- Connect the Local Unit to a CPU........................................................................................................................................6
Figure 2- Local unit with audio support connects to CPU ..................................................................................................................7
Figure 3- Connect local user devices to the Local Unit......................................................................................................................7
Figure 4- Connect stereo speakers to XTENDEX Local Unit with audio support...............................................................................8
Figure 5- Connect the CAT5 cable to the Local Unit..........................................................................................................................8
Figure 6- Connect the Monitor and Devices to the Remote Unit........................................................................................................9
Figure 7- Connect remote self-powered speakers and microphone to Remote Unit........................................................................10
Figure 8- Connect CAT5 cable to the Remote Unit..........................................................................................................................10
Figure 9- Mount ST-C5RCK-12 Extender Module Tray to a rack.....................................................................................................11
Figure 10- Secure each module to the tray......................................................................................................................................11
Figure 11- Secure each power supply to the tray ............................................................................................................................12
Figure 12- Connect cable between CPU and module......................................................................................................................13
Figure 13- Connect cable between user and module ......................................................................................................................13
Figure 14- Connect the CAT5 cable between the Local and Remote Units.....................................................................................14
Figure 15- Connect AC adapters .....................................................................................................................................................15
Figure 16- MAC LED........................................................................................................................................................................17
Figure 17- DDC Update Button........................................................................................................................................................18
Figure 18- Examples of common applications for the ST-C5USBV-300 USB KVM Extender..........................................................19
Figure 19- Pin positions in female RJ45 connector..........................................................................................................................21
Figure 20- Keyboard Layouts...........................................................................................................................................................23

1
INTRODUCTION
The ST-C5USBV-300 USB Extender (XTENDEX) is designed to enable the relocation of a monitor, USB keyboard, and USB
mouse from a USB CPU or NTI USB KVM switch by as much as 300 feet via CAT5 cable in addition to having a monitor, USB
keyboard, and USB mouse connected locally. It is extremely simple to install and has been thoroughly tested to insure reliable
performance. Through the use of Category 5 shielded or unshielded twisted-pair cable (STP/UTP) or Category 6 unshielded
twisted-pair cable (UTP), it is possible to economically increase the flexibility of a computer system.
Options:
Audio Support- The ST-C5USBV-300 can be ordered to include support for extending self-powered stereo speakers by adding
“A” to the model number (i.e. ST-C5USBVA-300)
2-Way Audio Support- The ST-C5USBV-300 can be ordered to include support for extending self-powered stereo speakers and
a microphone by adding “2A” to the model number (i.e. ST-C5USBV2A-300)
Rackmount Modules- The ST-C5USBV-300/USBVA-300 can be ordered as rackmount modules (Remote and/or Local Units)-
add “M” to the model number (i.e. ST-C5USBVA-300M). When ordering rackmount modules, also order the ST-C5RCK-12
Rackmount Extender Module Tray (see page 11).
Model Mounting Method Audio Support # of Remotes
Supported
ST-C5USBV-300 Desktop N 1
ST-C5USBVA-300 Desktop Y 1
ST-C5USBV2A-300 Desktop Y (2-way) 1
ST-C5USBV-300M Rackmount* N 1
ST-C5USBVA-300M Rackmount* Y 1
*NTI ST-C5RCK-12 Rackmount Extender Tray required (sold separately)
Features
Allows the placement of a monitor, USB keyboard, and USB mouse in a location where only these
parts are needed without having the CPU there too, taking up valuable space and adding to room noise.
Provides crisp and clear resolution when used in accordance with the chart below:
CAT5/5eSTP CAT5/5E/6 UTP cable
Resolution Cable length Resolution Cable length
1024 x 768 /60Hz 300 feet 1024 x 768 /60Hz 300 feet
1280 x 1024 /60Hz 150 feet 1600 x 1200 /60Hz 150 feet
1600 x 1200 /60Hz 100 feet 1920 x 1440 /60Hz 100 feet
Video quality is easily adjusted using keyboard controls
Installation can be between a CPU and devices (keyboard, mouse, and monitor), between a CPU and
NTI USB switch, or between a NTI USB switch and devices.
Allows hot-plugging of keyboards and mice
DDC Support (see page 18 for details)
Types of User Input Devices Supported:
Compatible with all video resolutions up to WUXGA (dependant upon CAT5/5e/6 extension distance)
All NTI USB switches
Microsoft, Logitech or Kensington Wheelmouse or Trackball on MAC CPUs with manufacturer's drivers
USB keyboard with Windowslayout
USB keyboard with SUN layout
USB keyboard with MAC layout
USB Mouse - (up to 3 buttons)
USB IntelliMouse(scrollwheel)
Logitech Cordless Elite Duo keyboard and mouse
Crystal Vision keyboard with touchpad
Gyration keyboard and mouse
NTI USB-PS/2 Adapter
NTI USB-SUN Adapter
Logitech wireless (S510, EX110, diNovo, LX10)

2
Kensington wireless (64379)
MS Wireless Optical Desktop (3000 and 4000)
HP P2360AA
Fellowes wireless keyboard (KBR0108) with mouse (MSR0238T)
Creative Desktop Wireless 8000
Operating Systems Supported
Windows 98SE Windows 8 or greater
Windows 2000 Linux 7.1 2.2 Kernel or greater
Windows ME Sun-Solaris 8 or greater
Window XP MAC OS 9.1 or greater
Window Vista HP UNIX J5000
Window 7 Free BSD
Limitations
The XTENDEX will only work with USB keyboards and mice, other USB devices are not supported.
PS/2 devices can be connected to the XTENDEX through an NTI USB-PS/2 adapter, however the translation keys described
on page 15 will not function in this application.
The XTENDEX can be used between two cascaded NTI switches, but the master switch in the configuration will not be able
to list the CPUs connected to the extended slave. The OSD menu in the extended slave would have to be used to monitor
CPUs connected to it. (This can be done by configuring command mode for the slave switch with an Alternate OSD
Command Sequence).
The XTENDEX Local with audio support must be used with a Remote with audio support, and a Local without audio support
must be used with a Remote without audio support. Locals and remotes with and without audio support cannot be mixed.
A ST-C5USBV(A)-300(M) XTENDEX Local must be used with a ST-C5USBV(A)-300(M) Remote. The ST-C5USBV(A)-
1000S XTENDEX Local and Remote are not compatible with the ST-C5USBV(A)-300(M) Local and Remote.

3
MATERIALS
Materials supplied with the ST-C5USBV-300(M):
NTI ST-C5USBV-300(M) USB KVM Extender Local Unit
NTI ST-C5USBV-300(M) USB KVM Extender Remote Unit
2-120VAC or 240VAC 50 or 60Hz-9VDC/1A AC Adapters
Power supply mounting bracket (ST-C5USBV-300M or ST-C5USBVA-300M only)
Materials supplied with the ST-C5USBVA-300(M):
NTI ST-C5USBVA-300(M) USB KVM and Audio Extender Local Unit
NTI ST-C5USBVA-300(M) USB KVM and Audio Extender Remote Unit
2-120VAC or 240VAC 50 or 60Hz-9VDC/1A AC Adapters
Power supply mounting bracket (ST-C5USBV-300M or ST-C5USBVA-300M only)
Materials supplied with the ST-C5USBV2A-300:
NTI ST-C5USBV2A-300 USB KVM and 2-Way Audio Extender Local Unit
NTI ST-C5USBV2A-300 USB KVM and 2-Way Audio Extender Remote Unit
2-120VAC or 240VAC 50 or 60Hz-9VDC/1A AC Adapters
1- SA-3-MM 3 Foot Audio Cable with 3.5MM Stereo Audio Plugs
Additional materials may need to be ordered, depending upon the configuration:
Video adapter for connection between the Local and a non-VGA SUN CPU (13W3M-15HDF)
USBVEXT-3, 6, 10 (15HD Male-to-Female and USB Type A Male-to-Female Extension cable) if the Local Unit will be located
further than 15" from the CPU or KVM switch
CAT5/5e shielded/unshielded twisted-pair cable(s) terminated with RJ45 connectors wired straight thru- pin 1 to pin 1, etc.
(see pg. 21 for proper EIA/TIA 568B wiring method)
-OR-
CAT6 unshielded twisted-pair cable(s) terminated with RJ45 connectors wired straight thru- pin 1 to pin 1,
etc. (see pg. 21 for proper EIA/TIA 568B wiring method)
For Rackmount Modules (ST-C5USBV-300Mor ST-C5USBVA-300M) the following materials are required- not supplied:
UMTINT-xx-MM - male 26-PIN SCSI II to male 15-pin HD, male USB Type A- for connecting the Local Unit to a CPU-
available in 3, 6 and 10 foot lengths.
UMTINT-xx-male 26-PIN SCSI II to female 15-pin HD, female USB Type A (x2)- for connecting the Local or Remote Unit to a
monitor, keyboard, and mouse- available in 3, 6, 10 and 15 foot lengths.
UMATINT-xx-MM-male 26-PIN SCSI II to male 15-pin HD, male USB Type A, and 3.5mm stereo plug- for connecting the
Local Unit with audio support to a CPU- available in 3, 6 and 10 foot lengths.
UMATINT-xx-male 26-PIN SCSI II to female 15-pin HD, female USB Type A (x2), and 3.5mm stereo jack- for connecting the
Local or Remote Unit with audio support to a monitor, keyboard, mouse, and stereo speakers- available in 3, 6, 10 and 15
foot lengths.
Contact your nearest NTI distributor or NTI directly for all of your KVM needs at 800-742-8324 (800-RGB-TECH) in US & Canada
or 330-562-7070 (Worldwide) or at our website at http://www.networktechinc.com and we will be happy to be of assistance.

4
FEATURES AND FUNCTIONS
# LABEL CONNECTOR/LED DESCRIPTION
1 AUDIO OUT Audio Jack for connecting to remote speakers (models with audio support only)
2 MIC IN Audio Jack for connecting to microphone (models with 2-way audio support only)
3 CAT5 RJ45 Connector for connection of CAT5 cable between Local Unit and Remote Unit
3a none Green LED illuminates when power has been supplied to the unit
3b none Yellow LED blinks when there is valid communication between the Local and
Remote Units.
4 VGA Monitor (symbol) HD15 Female for connection of video cable from remote monitor
5 USB DEVICES USB Type A dual for connection of remote user USB device(s)
6 MAC Green LED for visual indication of connection to a MAC CPU
7 9VDC 2.1x5.5mm Power
Jack for connection of power supply
8 MIC TO CPU Audio Jack for connection of microphone cable to PC
9 DDC Update pushbutton press to update the PC with DDC info from local monitor
10 Monitor Symbol Video Cable 15HD male for connection to video connector of CPU
11 USB Symbol Devices Cable USB Type A male connector for connection to CPU
12 none Audio Plug for connecting to CPU speaker line out (models with audio support
only)
13 USER .05 SCSI II Female for connecting cable between module and the user devices
14 CPU .05 SCSI II Female for connecting cable between the module and the CPU

5
Crimp-on
Solder
terminal
PREPARATION FOR INSTALLATION
A location should be chosen for the monitor, mouse, and keyboard that also has space to mount the Remote Unit within the
distance provided by the cables from the monitor, mouse, and keyboard. If extension cables are needed, contact NTI for the
cables required. If a local user will be connected, a proper location must be chosen for these devices too.
The CAT5 cable(s) must be run to the locations where the Remote and Local Units will be placed. Be careful to route the
cables away from any sources of magnetic fields or electrical interference that might reduce the quality of the video signal
(i.e. AC motors, welding equipment, etc.). NOTE: If CAT5 cable is already installed in the wall and there are RJ45 wall
outlets, it will be necessary to obtain male-to-male straight through connection cables long enough to reach from the wall
outlets to the mounting locations of the Remote and Local Units.
A properly grounded, polarized, and preferably surge-protected 120V or 240V electrical outlet (depending on the AC adapter
being used) must be installed close enough to the mounting location of the Remote Unit and monitor to plug them into.
All cables should be installed in a fashion that will avoid stress on their connections to the equipment. Extended lengths of
cable hanging from a connection may interfere with the quality of that connection. Secure cables as needed to prevent this.
Properly shut down and disconnect the power of the CPU and monitor. Disconnect the monitor, keyboard, and mouse. If
other equipment is involved whose connections are being interrupted, be sure to refer to the instruction manuals for that
equipment for proper disconnection and re-connection procedures before proceeding.
Note: CAT5 connection cable used between NTI XTENDEX Series Local and Remote or any XTENDEX Series products
should not be run underground, outdoors or between buildings.
WARNING: Outdoor or underground runs of CAT5 cable could be dangerous and will void the warranty.
This product is equipped with grounding hardware to prevent interference from sources of electrical noise that could interfere with
the normal operation of the XTENDEX or damage it. Use either the crimp-on lug or solder terminal to secure a properly
grounded wire to the XTENDEX.
!

6
INSTALLATION
The Local Unit
Connect to the CPU
1. Plug the cables of the Local Unit into the back of the CPU. (See Figure 1.)
a) Connect the blue 15HD cable from the Local Unit to the female VGA port on the back of the CPU.
b) Connect the USB Type A cable from the Local Unit to a female USB Type A port on the back of the CPU.
Note: If a SUN CPU is being connected, depending upon the video connector of the SUN CPU, it may be necessary to
attach an NTI #13W3M-15HDF (SUN video port-to-VGA adapter) to the video port on the CPU first, and then connect the
video cable to the adapter.
Figure 1- Connect the Local Unit to a CPU
c) If the Local Unit has Audio support (ST-C5USBVA-300 only), connect the black 3.5mm stereo plug into the "line
out", "speaker", or "headphones" jack on the back of the CPU. (See Figure 2)
Notes:
If all 3 jacks are available, use the jack marked "line out".
The "line out" jack is typically lime green and may be marked with this symbol
The "speaker" jack is typically orange, and may be marked with this symbol
The "headphones" jack may be marked with this symbol
d) If the Local Unit has 2-way audio support (ST-C5USBV2A-300), connect the 3 foot audio cable (supplied)
between the “MIC to CPU” jack and the microphone or “line in” port (pink) on the CPU.
Sun 13W3 Video Connector
(BLUE- VIDEO)
USB CPU
USB Type A male
15HD male
Video Connector
-+
(Rear View)
NTIR
Network Technologies Inc
XTENDEX USB
ST-C5USBV-300 Local Unit

7
Figure 2- Local unit with audio support connects to CPU
Connect the Local Devices
If desired, connect the local user devices to the Local Unit as shown in Figure 3.
1. Connect a USB keyboard and mouse to the USB type A female connectors on the Local Unit.
2. Connect a monitor to the 15HD female connector on the Local Unit.
Figure 3- Connect local user devices to the Local Unit
NTI R
Network Technologies Inc
XTENDEX USB
ST-C5USBV-300 (Local Unit)
(Front View)
XTENDEX USB
NTI R
Network Technologies Inc
(Rear View)
-+
-+
VGA
Multi-Scan
Monitor
15HD Female
Video Connector
USB Keyboard USB
Mouse
USB Type A
male connectors
USB Type A male
Cable to CPU
15HD male
Video Connector
USB Type A Female

8
NTI R
Network Technologies Inc
XTENDEX USB
(Front View) -+
CAT5 Cable to
Remote
ST-C5USBV-300 (Local Unit)
3. If the Local Unit has audio support (ST-C5USBVA-300) , connect the cable from the local self-powered
stereo speakers to the 3.5mm stereo audio “AUDIO OUT” jack on the Local Unit. (See Figure 4)
4. If the Local Unit has 2-way audio support (ST-C5USBV2A-300), connect a microphone to the pink jack labeled
“MIC IN”.
Figure 4- Connect stereo speakers to XTENDEX Local Unit with audio support
Connect the CAT5 Cable
Connect the CAT5 cable to the “CAT5” port on the rear of the
Local Unit (see Figure 5). (If an RJ45 wall outlet is being used,
connect the other end of the extension cable to it.) When
properly inserted the cable end should snap into place.
Figure 5- Connect the CAT5 cable to the Local Unit

9
The Remote Unit
Connect the Remote Devices
Position the Remote Unit such that the CAT5 cable, the monitor cable, the keyboard and mouse, and the AC adapter
power connector can each reach the Remote Unit comfortably.
1. Connect the monitor cable to the 15HD female VIDEO port on the back of the Remote Unit. (See Figure 6)
2. Connect the devices to the Remote Unit.
a. Connect the USB keyboard cable (or wireless adapter) to one of the USB Type A female ports labeled "USB
DEVICES" on the back of the Remote Unit. (Either one will work.)
b. Connect the USB mouse cable (or wireless adapter) to the remaining USB Type A female port on the back of
the Remote Unit.
Figure 6- Connect the Monitor and Devices to the Remote Unit
VGA
Multi-Scan
Monitor
15HD Female
Video Connector
CAT5 Cable to
Local Unit
Green Power LED
Yellow Communication LED (Front View)
NTI R
Network Technologies Inc
XTENDEX USB
-+
XTENDEX USB
NTI R
Network Technologies Inc
(Rear View)
-+
USB Keyboard USB
Mouse
USB Type A
male connectors
USB Type A male
ST-C5USBV-300 Remote Unit USB Type A Female
15HD male
Video Connector

10
CAT5 Cable to
Local Unit
Green Power LED
Yellow CommunicationLED
(Front View)
NTI R
Network Technologies Inc
XTENDEX USB
-+
ST-C5USBV-300 Remote Unit
4. If the Remote Unit has audio support (ST-C5USBVA-300) , connect the cable from the remote self-powered
stereo speakers to the 3.5mm stereo audio “AUDIO OUT” jack on the Remote Unit. (See Figure 7)
5. If the Remote Unit has 2-way audio support (ST-C5USBV2A-300), connect a microphone to the pink jack labeled
“MIC IN”.
Figure 7- Connect remote self-powered speakers and microphone to Remote Unit
Connect the CAT5 cable
Connect the CAT5 cable to the “CAT5” port on the rear of
the Remote Unit (see Figure 8). (If an RJ45 wall outlet is
being used, connect the other end of the extension cable
to it.) When properly inserted the cable end should snap
into place.
WARNING: Never connect the ST-C5USBV-300
Extender to an Ethernet card, Ethernet router,
hub or switch or other Ethernet RJ45 connector
of an Ethernet device. Damage to devices
connected to the Ethernet may result.
Figure 8- Connect CAT5 cable to the Remote Unit
!

11
Rackmount Modules (optional)
If ST-C5USBV-300M or ST-C5USBVA-300M XTENDEX rackmount modules (Local and/or Remote modules) are being installed,
then an ST-C5RCK-12 Rackmount Extender Module Tray must be used (sold separately) to mount the modules to a RACK. The
ST-C5RCK-12 provides a convenient mounting method for up to 12 Local and /or Remote XTENDEX modules.
Note: Rackmount Local modules are compatible with rackmount Remote modules or desktop Remote units.
Mount the ST-C5RCK-12 Rackmount Extender Module Tray
1. The ST-C5RCK-12 Rackmount Extender Module Tray was designed to be directly mounted to a rack. It includes a mounting
flange to make attachment easy.
2. Install 4 cage nuts (supplied) to the rack in locations that line up with the holes in the mounting flange on the tray.
Then secure the tray to the rack using four #10-32 screws (supplied). Be sure to tighten all mounting screws securely.
Figure 9- Mount ST-C5RCK-12 Extender Module Tray to a rack
3. Slide each module into the tray and line up the holes in the mounting plate on the module with corresponding holes in the tray.
Secure the module(s) using the two screws provided. Blank plates and screws are provided to cover empty module spaces.
Figure 10- Secure each module to the tray
CAT5
LOCAL UNIT
NTIR
ST-C5USBVA-300M
XTENDEX RUSB
CAT5
LOCAL UNIT
NTI R
ST-C5USBVA-300M
XTENDEX RUSB
CAT5
LOCAL UNIT
NTIR
ST-C5USBVA-300M
XTENDEX RUSB
Secure XTENDEX module(s) to the ST-C5RCK-12
using the screws provided.
Frontview of ST-C5RCK-12 with XTENDEX Extender Modules
Cage Nuts
Rack Screws
Rack
10-32
(supplied) (supplied)

12
4. Secure the power supply for each module to the power supply/cable management shelf at the rear of the tray using the bracket
and screw supplied.
Figure 11- Secure each power supply to the tray
9V
1.5 A
USER CP U
L
0
C
A
L
U
N
I
T
ST-C 5USBVA- 30 0M
NTIR
Tel:[phone]
Fax:[phone]
1275 Danner Dr
Aurora,OH44202
www.networktechinc.com
Secure each power supply to the tray
u
sing the bracket and screw provided.
Rearview of ST-C5RCK-12 with XTENDEX Extender Modules
Power supply mounting bracket
(supplied with each module)
Connect power cord to
power supply here
Plug power connector
into Extender module
Power supply/cable managment shelf

13
Connect the CPU
Connect a UMTINT-xx-MM (or UMTINTA-xx-MM if module has audio support) to the CPU, and then to the Local Unit at the
connector marked “CPU”. Make sure all connections are firmly seated. (xx= 3, 6, 10, or 15 foot length)
Figure 12- Connect cable between CPU and module
Connect the Devices
Connect a UMTINT-xx (or UMTINTA-xx if module has audio support) to the monitor, keyboard, mouse, and speakers (if
supported), and then to the Local or Remote Unit at the connector marked “USER”. Make sure all connections are firmly seated.
(xx= 3, 6, or 10 foot length)
Figure 13- Connect cable between user and module
USB CPU
3.5mm Stereo Plug
AUDIO CONNECTOR
line
out
ONE WILL BE MARKED "line
out" ,"speaker", "headphones"
OR WITH THIS SYMBOL
USB Type A male
15HD male
Video Connector
Connect to
ST-C5USBVA-300M
Local Unit at "CPU"
0.05 SCSI II series
UMTINTA-3/6/10/15-MM
9V
1.5 A
USER CPU
L
0
C
A
L
U
N
I
T
ST-C5USBVA-300M
NTI R
Tel:[phone]
Fax:[phone]
1275 Danner Dr
Aurora, OH 44202
www.networktechinc.com
3.5MM-Stereo Jack
REAR VIEW
ST-C5USBVA-300M
(Local Unit)
Stereo
Speakers
USB Keyboard
USB
Mouse
USB-A-Female
15HD-Female
Video Connector
USB-A-Female
0.05 SCSI II series
UMTINTA-3/6/10
3.5MM-Stereo Jack
VGA
Multi-Scan
Monitor
Connect to
ST-C5USBVA-300M
Local Unit or
Remote Unit
at "USER" USER
9V
1.5 A
R
E
M
O
T
E
U
N
I
T
ST-C5USBVA-300M
NTI R
Tel:[phone]
Fax:[phone]
1275 Danner Dr
Aurora, OH 44202
www.networktechinc.com
REAR VIEW
ST-C5USBVA-300M
(Remote Unit)

14
Connect the CAT5 cable
Connect the CAT5 cable to the “CAT5” port on the front of the Local Unit (see Figure 14). When properly inserted the
cable end should snap into place. Connect the other end of the cable to the “CAT5” port on the Remote Unit.
WARNING: Never connect the ST-C5USBV-300M Extender to an Ethernet card, Ethernet router hub or switch
or other Ethernet RJ45 connector of an Ethernet device. Damage to devices connected to the Ethernet may
result.
Figure 14- Connect the CAT5 cable between the Local and Remote Units
!
Green Power LED
Yellow CommunicationLED
(Front View)
NTI R
Network Te chnologies Inc
XTENDEX USB
-+
ST-C5USBVA-R-300 Remote Unit
MAC
CAT5
REMOTE UNIT
NTI R
ST-C5USBVA-300M
XTENDEX RUSB
CAT5
LOCAL UNIT
NTI R
ST-C5USBVA-300M
XTENDEX RUSB
-OR-
CAT5 Cable- up to 300 feet
Connect Local unit to either
rackmount Remote Unit module
(ST-C5USBVA-R-300M) or
desktop Remote Unit
(ST-C5USBVA-R-300)
ST-C5USBVA-R-300M
Remote Unit
(Front View)

15
Plug-in and Boot Up
1. Plug the power cord(s) from the monitor(s) into power outlet(s).
2. Connect the AC adapter power connectors to the 9VDC ports on the Remote and Local Units. (AC adapter shown in Figure
15)
3. Plug the AC adapters into power outlets. The “Power” LED (Green) on the CAT5 connector of each unit should illuminate,
indicating that a proper power connection has been made.
4. Turn ON the CPU and monitor(s). The CPU and monitor(s) should each react as if they were directly connected to each
other. The yellow communication LEDs on the Remote and Local Units should blink indicating there is proper
communication between them.
Note: A loss of signal (blank screen) may be
experienced for an instant during the auto-
compensation process after powering-up (ST-
C5USBVA model only). This may also occur if the
XTENDEX senses a loss of or weak signal connection
in the CAT5 cable.
Figure 15- Connect AC adapters
Note: When using the microphone feature (ST-C5USV2A-300 model only), if both microphones are used at the same
time (one at the Local Unit and one at the Remote Unit), the audio data from both microphones will be “mixed” and sent
to the PC as one combined data stream. You will hear the combined audio from each through the speakers.
9 VDC
Adapter
ADAPTER
Barrel
(Inside
barrel)
(Outside
barrel)
Power Connector
2.1 mm x 5.5 mm Female
9VDC @ 1.0A OUTPUT
XTENDEX USB
NTI R
Networ k Te chnologies Inc
(Rear View)
-+
ST-C5USBV-300
Remote Unit
9V
1.5 A
USER CPU
L
0
C
A
L
U
N
I
T
ST-C5USBVA-300M
NTI R
Tel:[phone]
Fax:[phone]
1275 D annerD r
Auror a, OH44202
www.networktechinc.com
ST-C5USBVA-300M
(Local Unit-Rearview)

16
COMMAND MODE
The XTENDEX has two areas of user control that can be used as needed. The user can adjust video quality (described
below), or enable/disable MAC mode (see page 17) These controls are accessed by entering Command Mode.
To enter Command Mode, simultaneously press the left and right <Shift> keys on the keyboard connected to the Remote
Unit. The keyboard LEDs will illuminate.
To exit Command Mode, press <Esc>.
Automatic Video Quality Adjustment (ST-C5USBVA/2A-300 only)
Video quality adjustment is done automatically to assure the image is as clear as possible.
Note: If a different type of cable is used (i.e. shielded cable) and the image is not crisp and clear, there may be a need for
fine adjustment. For fine adjustment, follow the same procedure as described under “Manual Video Quality Adjustment”
below.
Manual Video Quality Adjustment(ST-C5USBV-300 only)
It is possible that on initial startup the image on the monitor will not be as crisp as the image normally is. This is due to the
frequency characteristics of the CAT5 cable. It may be necessary to enter Command Mode (described above) and press
the <Right Arrow> or <Left Arrow> keys on the remote keyboard until the image is crisp and clear.
Press <Right Arrow>key if the image is not crisp and clear enough.
Press the <Left Arrow> key if the image has been over-corrected (such that horizontal lines appear to trail or
shadow at the edge of an open window).
A momentary press of either key will make a minor change in the image.
Ultimately, the image quality should improve to a satisfactory level. Once the adjustment is made, it should not be necessary to
change it again, as the new settings are stored in memory and become the default settings with each startup. To exit Command
Mode, press <Esc>.
Note: For additional quality adjustment, it may be necessary to adjust the brightness and contrast settings of the
monitor.
Note: The video quality adjustment procedure can only be performed from the keyboard connected to the Remote Unit.

17
MAC Mode
MAC Mode enables the user to connect the Local Unit to a MAC CPU. MAC Mode configures the Local Unit for passing mouse
information to the MAC CPU. This is useful when the user wants to use mouse drivers provided by the mouse vendor, which
allows the use of programmable functions for each mouse button. The Local Unit can be configured whenever necessary.
NOTE: When the port is connected to a PC or SUN CPU, MAC Mode should be OFF (the default setting).
To do this;
1. Enter Command Mode. (Simultaneously press the left and right <Shift> keys on the keyboard connected to the Remote
Unit. The keyboard LEDs will illuminate. )
2. If a MAC CPU is connected, press the <M> key. The keyboard LEDs will momentarily flash and the “MAC” LED on the
Remote Unit will illuminate to indicate MAC Mode is ON. (See Figure 16)
3. To reconnect the XTENDEX to a SUN or Windows CPU (the default setting) , press the <M> key once again and the
“MAC” LED will go OFF.
Figure 16- MAC LED
After setting, the configuration is stored in memory and will be retrieved whenever the XTENDEX is powered ON.
Note: MAC Mode can only be enabled from the keyboard connected to the Remote Unit.
XTENDEX USB
NTI R
Network Te chnologies Inc
(Rear View)
-+
ST-C5USBV-300
Remote Unit
MAC
p
ort confi
g
uration LED