Network Technologies ST-2U User Manual
NTI
NETWORK
R
TECHNOLOGIES
INCORPORATED
1275 Danner Dr
Aurora, OH 44202
www.nti1.com
Tel:330-562-7070
Fax:330-562-1999
NODEMUX
TM
Series
ST-2U
2-Port Universal KVM Switch
Installation and Operation Manual
MAN042 Rev Date 4/15/2004
Warranty Information
The warranty period on this product (parts and labor) is one (1) year from the date of purchase. Please contact Net work
Technologies Inc at (800) 742-8324 (800-RGB-TECH) or (330) 562-7070 or visit our website at http://www.nti1.com for
information regarding repairs and/or returns. A return authorization number is required for all repairs/returns.
COPYRIGHT
Copyright © 2004 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 4420 2.
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.
MAN042 Rev Date 4/15/2004
TABLE OF CONTENTS
Introduction......................................................................................................................................................................1
Materials..........................................................................................................................................................................1
Features and Functions...................................................................................................................................................2
Installation .......................................................................................................................................................................3
Units with audio support (optional)..............................................................................................................................7
Units with touch screen support (optional) ..................................................................................................................8
Power Up/Down...........................................................................................................................................................9
Using the NTI ST-2U 2-Port Universal KVM Switch .......................................................................................................9
Front Panel Control......................................................................................................................................................9
Keyboard Control.........................................................................................................................................................9
Command Mode .......................................................................................................................................................9
Scan Mode..............................................................................................................................................................10
Broadcast Mode......................................................................................................................................................10
Normal Mode ..........................................................................................................................................................10
USB CPU Support.........................................................................................................................................................11
Introduction................................................................................................................................................................11
General Notes.........................................................................................................................................................11
Keyboard translation..................................................................................................................................................11
Cables.....................................................................................................................................................................11
LED Operation........................................................................................................................................................11
RS232 Control...............................................................................................................................................................12
RS232 Connections and Configuration.....................................................................................................................12
Remote Connection................................................................................................................................................12
Baud Rate...............................................................................................................................................................12
Unit Address ...........................................................................................................................................................12
Dipswitches.............................................................................................................................................................13
RS232 Interface Test Program..................................................................................................................................13
Touch Screen Support ..................................................................................................................................................14
Audio Support................................................................................................................................................................15
Dual Video Support.......................................................................................................................................................15
Keyboard-To-CPU Translation......................................................................................................................................16
Troubleshooting.............................................................................................................................................................17
TABLE OF FIGURES
Figure 1- Keyboard dip-switch configuration...................................................................................................................3
Figure 2- Connect VGA multi-scan monitor to ST-2U.....................................................................................................3
Figure 3- Connect SUN monitor to ST-2U-13W3............................................................................................................4
Figure 4- Connect PS/2 keyboard and mouse to ST-2U ................................................................................................4
Figure 5- Connect a MAC keyboard/mouse to ST-2U....................................................................................................4
Figure 6- Connect SUN keyboard/mouse to ST-2U........................................................................................................5
Figure 7- Connect PS/2 CPU to ST-2U...........................................................................................................................5
Figure 8- Connect MAC CPU to ST-2U ..........................................................................................................................6
Figure 9- Connect SUN CPU to ST-2U...........................................................................................................................6
Figure 10- Use a NTI VOPEX-IM9D with serial type mouse port ...................................................................................7
Figure 11- Connect audio signal and speakers to a ST-2U-A ........................................................................................7
Figure 12- Connect a touch-screen monitor to ST-2U-TS..............................................................................................8
Figure 13- Connect serial device cable from CPU to ST-2U-TS.....................................................................................8
Figure 14- USB device ports on the ST-2U-U...............................................................................................................11
Figure 15- Addressing a daisy-chain of NTI switches...................................................................................................12
Figure 16- Pinout for the Matrix-Y-1 cable....................................................................................................................12
Figure 17- RS232 Dipswitches......................................................................................................................................13
Figure 18- Three types of ports on the ST-2U-TS ........................................................................................................14
Figure 19- Control CPU audio with ST-2U-A................................................................................................................15
Figure 20- Connections for video cables on the ST-2U-DV..........................................................................................15
Figure 21- Keyboard types............................................................................................................................................16
MAN042 Rev Date 4/15/2004
NTI NODEMUX SERIES UNIVERSAL KVM SWITCH
INTRODUCTION
The NTI ST-2U 2-PORT UNIVERSAL KVM Switch allows a single keyboard, monitor, and mouse to communicate directly with
any two PC, MAC or SUN CPUs connected to the switch. These CPUs can be file servers, network managers, etc. The
microprocessor driven circuitry in the NTI switch allows all CPUs to boot simultaneously without keyboard or mouse error.
Available Options
• Built-in 13W3 video port- for use with SUN multi-scan monitors- Add "-13W3" to the part number (i.e. ST-2U-13W3)
• Built-in USB type B ports to connect to USB compatible CPUs-Add "-U" to the part number (i.e. ST-2U-U)
• Built-in serial port- for use with touch screen monitors. Add "-TS" to the part number (i.e. ST-2U-TS)
• Audio support to enable user to connect stereo speakers to receive audio signals from connected CPUs- add "-A" to the part
number (i.e. ST-2U-A)
• RS232 support for alternative control using RS232 connection. Add "-RS" to the part number (i.e. ST-2U-RS)
• Dual Video option supports CPUs with two video outputs. Add "-DV" to the part number (i.e.ST-2U-DV)
See our catalog, visit our website at http://www.nti1.com, or contact an NTI sales representative at 800-742-8324 (800-RGB-
TECH) or 330-562-7070 for more details.
MATERIALS
Materials Supplied with this kit:
• NTI ST-2U 2-PORT UNIVERSAL KVM Switch
• 120VAC or 240VAC at 50 or 60Hz-9VDC/0.5A AC Adapter
Materials Not Supplied, BUT REQUIRED:
NOTE: A VGA multi-scan monitor must be used with this product. Exception- If an ST-2U-13W3 with built-in SUN video
port has been purchased, then a multi-scan SUN monitor can be used.
• A set of 2 cables for each CPU being connected to the switch must be used:
PS/2 CPU to switch
SUN CPU to switch
MAC CPU to switch
• One of the following cables may be required to connect the keyboard/mouse:
PS/2 keyboard and mouse
SUN keyboard/mouse
MAC keyboard/mouse
• Other cables that may be required if additional features are used:
MMEXT-xx
SA-xx-MM
USB-AB-xx
Matrix-Y-1
• VEXT-xx-MM for video interface
• VKTINT-xx-MM for keyboard and mouse interface
• VEXT-xx-MM for video interface
• 13W3M-15HDF adapts 15HD (VGA) to 13W3
(SUN)
• SKTINT-xx-MM for keyboard/mouse interface
• VEXT-xx-MM for video interface
• 15DM-15HDF adapts 15HD (VGA) to 15D (MAC)
• MKTINT-xx-MM for keyboard/mouse interface
• VKTINT-1
• None – SUN keyboard connects directly to switch
• MKTINT-1
• Connect CPU serial port to ST-2U-TS
• Connect CPU audio port to ST-2U-A
• Connect the USB CPU to the ST-2U-U
• Control more than one ST-2U-RS via a CPU
Legend:
xx is the length of the cable in feet
MM indicates male-to-male connector
Cables can be purchased from Network Technologies Inc.
1
NTI NODEMUX SERIES UNIVERSAL KVM SWITCH
F E A T U R E S A N D F U N C T I O N S
T M
N O D E M U X
R
N T I
N e t w o rk T e c h n o lo g i e s In c
R e a r V i e w o f S T - 2 U - 1 3 W 3F r o n t V i e w o f S T - 2 U
1 0
S U N M O N I T O R
S E L E C T
C P U
C P U 1 C P U 2
1 2
O N
V I D E O 2
C P U 2
C P U 1
6
6 5
6
4 3
4 3
12
M O N I T O R
V I D E O 1
9 V D C
. 5 A
U S E R
+
-
6 5
6
6
6 5
6
6
4 3
12
12
1 2 3 4 5 6 7 8 9
FEA TURES AND FUNCTIONS
1. CPU Select Switch- push to manually toggle between CPUs
2. CPU LEDs- for visual indication of connection between the user and a specific CPU and to indicate mode status
3. Power ON/OFF switch
4. Dip-switches- for configuring user keyboard type
5. CPU x - 15HD VGA connectors- for connecting video cables from CPUs
6. MONITOR- 15HD VGA connectors- for connection of the user monitor
7. CPU x- 8 pin miniDIN female connectors- for connecting CPU device cables (keyboard and mouse)
8. USER- 8 pin miniDIN female connector- for connecting user devices (keyboard and mouse)
9. 9VDC- connection jack for the AC adapter
10. SUN MONITOR- 13W3 female connector- for connecting a SUN monitor (-13W3 option only)
11. AUD OUT- (optional) for connection of audio cable to audio output devices (speakers)
12. AUD x- (optional) for connection of audio cables from audio sources
13. DIP SWITCHES- (optional) for configuring RS232 communication and addressing functions
14. RS232- (optional) for attaching RS232 interface cable from a CPU to control the functions of one or more
Switches
15. SERIAL x- (optional) 9D female- for connection of serial device cable from CPU
16. SERIAL- (optional) 9D male- for connection of serial cable from touch-screen monitor
17. USB-x - (optional) USB Type B Female- for connection of USB device cables from USB CPU
R e a r V i e w o f S T - 2 U - D V
C P U 2
V I D E O 1
V I D E O 2 V I D E O 2
C P U 1
V I D E O 1
M O N I T O R 1
M O N I T O R 2
C P U 2
U S E R
C P U 1
6
6 5
6 5
6
4 3
6
6
6 5
6
6
4 3
4 3
12
12
12
P W R
R e a r V i e w o f S T - 2 U - A
A U D 2
V I D E O 2 V I D E O 1
A U D 1
M O N I T O R
A U D
O U T
1 1
C P U 1 C P U 2
U S E R
6 5
6 5
4 3
6 5
4 3
4 3
12
12
12
P W R
1 2
R e a r V i e w o f S T - 2 U - R S
1 3
1 4
V I D E O 2 V I D E O 1
O F F
1 2 3 4 5 6 7 8
O N
M O N I T O R
R S 2 3 2
C P U 1 C P U 2
U S E R
6 5
6 5
4 3
6 5
4 3
4 3
12
12
12
P W R
R e a r V i e w o f S T - 2 U - T S
C P U 2
C P U 1
V I D E O 2 V I D E O 1
U S E R
S E R I A LS E R I A L 1S E R I A L 2
M O N I T O R
1 5
1 6
C P U 1 C P U 2
U S E R
6 5
6 5
4 3
6 5
4 3
4 3
12
12
12
P W R
R e a r V i e w o f S T - 2 U - U
C P U 2
C P U 1
U S B
U S B
1 7
V I D E O 1
V I D E O 2
M O N I T O R
C P U 2
C P U 1
6
6 5
6 5
6
6
6
4 3
4 3
12
12
+
-
6
6 5
6
4 3
12
9 V D C
. 5 A
U S E R
2
NTI NODEMUX SERIES UNIVERSAL KVM SWITCH
INSTALLATION
1. Turn OFF power to all CPUs that will be connected to the NTI ST-2U 2-Port Universal KVM Switch before connecting or
disconnecting any cables to or from them.
Warning! Damage to the CPU may result if power is not turned OFF before connecting or disconnecting cables.
2. Configure the ST-2U for the keyboard type being used as per Fig. 1 below (SUN, PS/2 or MAC). The dip-switches on the front
panel must be configured for the platform of the keyboard / mouse that will be used to operate the ST-2U. This action must be
completed prior to powering up the ST-2U. Should it be necessary to replace the keyboard of one platform with a ke yboard of a
different platform, the dip-switches will need to be re-configured accordingly. To do this, first power down the ST-2U by following
the proper Power-Down Sequence (see page 9). When power has been turned OFF, replace the keyboard, re-configu re the
switches, and then power-up, following the proper Power-Up Sequence (also on page 9). However, if replacin g the keyboard with
one from the SAME PLATFORM, it can be hot-swapped without powering-down.
S w i t c h 1 - O F F
S w i t c h 2 - O F F
T M
R
N O D E M U X
N T I
N et w o r k Te c h n ol o gi e s In c
1 2
O N
O F F
V G A
M u l t i - S c a n
M o n i t o r
P S / 2 K e y b o a r d & M o u s e
V K T I N T - 1
M K T I N T - 1
N T I
N et w o r k Te c h n ol o gi e s In c
S w i t c h 1 - O F F
S w i t c h 2 - O N
R
T M
N O D E M U X
1 2
O N
O F F
V G A
M u l t i - S c a n
M o n i t o r
M A C K e y b o a r d / M o u s e
E X I S T I N G S U N
K E Y B O A R D / M O U S E
C A B L E
S w i t c h 1 - O N
S w i t c h 2 - O F F
R
T M
N O D E M U X
N T I
N et w o r k Te c h n ol o gi e s In c
1 2
O N
O F F
V G A
M u l t i - S c a n
M o n i t o r
S U N K e y b o a r d / M o u s e
Figure 1- Keyboard dip-switch configuration
3. Connect a VGA multi-scan monitor to the port labeled "MONITOR" on the ST-2U switch (Fig. 2), or, a SUN multi-scan
monitor (if the switch model number is ST-2U-13W3 as shown in Fig. 3).
R e a r V i e w o f S T - 2 UR e a r V i e w o f S T - 2 U
9 V D C
. 5 A
U S E R
+
-
6
6
6 5
6
6
4 3
12
12
1 5 H D m a l e
V i d e o C o n n e c t o r
V I D E O 2
V I D E O 1
M O N I T O R
C P U 2
C P U 1
6
6 5
6 5
6
4 3
4 3
12
Figure 2- Connect VGA multi-scan monitor to ST-2U
3
V G A
M u l t i - S c a n
M o n i t o r
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