Network Technologies KEEMUX-P2 Manuale utente

MAN049 Rev 4/11/07

KEEMUX-P2

2-Port PS/2 KVM Switch

Installation and Operation Manual

KEEMUX®Series

NETWORK

TECHNOLOGIES

INCORPORATED

Tel:330-562-7070

Fax:330-562-1999

1275 Danner Dr

Aurora, OH 44202

www.networktechinc.com

NTI R

TRADEMARK

KEEMUX is a registered trademark of Network Technologies Inc in the U.S. and other countries.

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, OH 44202

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.

TABLE OF CONTENTS

INTRODUCTION.............................................................................................................................................................1

MATERIALS....................................................................................................................................................................1

FEATURES AND FUNCTIONS......................................................................................................................................2

INSTALLATION..............................................................................................................................................................3

USING THE NTI SWITCH...............................................................................................................................................5

Front Panel Control......................................................................................................................................................5

Keyboard Control.........................................................................................................................................................5

Command Mode..........................................................................................................................................................5

AUDIO SUPPORT ..........................................................................................................................................................6

DUAL VIDEO SUPPORT................................................................................................................................................6

RS232 CONTROL...........................................................................................................................................................7

RS232 Connections and Configuration.......................................................................................................................7

Remote Connection..................................................................................................................................................7

RS232 Interface Test Program....................................................................................................................................8

TECHNICAL SPECIFICATIONS ..................................................................................................................................10

REMOTE (RMT-2-ST)...................................................................................................................................................10

TROUBLESHOOTING..................................................................................................................................................11

INTRODUCTION

The KEEMUX-P2 switch allows one user to access two PS/2 CPUs with only one keyboard, monitor and mouse. Internal auto-

boot circuitry allows both CPUs to boot simultaneously and error-free without the need for a keyboard, monitor and mouse on

each CPU.

Available Options

•A KEEMUX-P2 can be ordered that supports a hard-wired remote control (RMT-2-ST) for increased user control flexibility.

Add "-RMT" to the part number. (i.e. KEEMUX-P2-RMT) The RMT-2-ST remote (ordered separately) comes standard with

a 6 foot cable but a cable of up to 100 feet can be ordered (DKEXT-35/50/75/100).

•Audio support to enable user to connect stereo speakers to receive audio signals from connected CPUs- add "-AUD" to the

part number (i.e. KEEMUX-P2-AUD)

•RS232 support for alternative control using RS232 connection. Add "-RS" to the part number (i.e. KEEMUX-P2-RS)

•Dual Video option supports CPUs with two video outputs. Add "-DV" to the part number (i.e.KEEMUX-P2-DV)

See our catalog, visit our website at http://www. networktechinc.com, or contact your NTI sales representative for more details.

MATERIALS

Materials Supplied with this kit:

•NTI KEEMUX-P2 PS/2 KVM Switch

Additional material supplied when model includes AUD, RS, or DV option:

•120VAC or 240VAC at 50 or 60Hz-9VDC/0.5A AC Adapter

Materials Not Supplied, BUT REQUIRED:

A set of 2 cables for each CPU being connected to the switch must be used:

PS/2 CPU to switch •VEXT-xx-MM

•(1) VVKINT-xx-MM for keyboard and mouse interface.

(2) VKINT-xx-MM for keyboard or mouse interface

FEATURES AND FUNCTIONS

1. CPU Status LEDs- for visual indication of connection between the user and a specific CPU. Also used for

visual indication of switch mode status

2. CPU Select Switches- push to manually switch to a specific CPU

3. Remote- (optional) for connection of RMT-2-ST remote control

4. PC x VIDEO- 15HD female connectors- for attachment of video cables from CPUs

5. MONITOR - 15HD female connector- for connection of user monitor

6. PC x- 6 pin miniDIN female connectors- for connection of keyboard and mouse cables from CPUs

7. USER- 6 pin miniDIN female connectors- for connection of user's keyboard and mouse

8. PWR - for connection of optional power supply

9. AUD x- (optional) for connection of audio cables from audio sources

10. AUD OUT- (optional) for connection of audio cable to audio output devices (speakers)

11. RS232- (optional) for attaching RS232 interface cable from a CPU to control the functions of one or more

switches

12. DIP SWITCHES- (optional) for configuring RS232 communication and addressing functions

A U D O U T

A U D 2

P C 2 V I D E O

4 3

6 5

U S E R

4 3

6 5

4 3

6 5

P C 1 V I D E O M O N I T O R

P C 1 P C 2

P W R

4 3

6 5

4 3

6 5

4 3

6 5

M O U S E

K Y B D

A U D 1

C P U 1 C P U 2

C P U

S E L E C T

R e m o t e

N T I R

N e t w o r k T e c h n o l o g i e s I n c

K E E M U X

4 5 68

R S 2 3 2

1 1

1 0

O N

O F F

1 2 3 4 5 6 8

1 2

INSTALLATION

1. Turn OFF power to all CPUs that will be connected to the NTI Switch before connecting or disconnecting any cables.

WARNING! Damage to the CPU may result if power is not turned OFF before connecting or disconnecting cables.

2. Connect PS/2 keyboard to “USER KEYBD” port on the rear panel of the switch. (See Fig. 1)

3. Connect PS/2 mouse to “USER MOUSE” port on the rear of the switch.

4. Connect monitor to “MONITOR” port on the rear of the switch.

5. Using (1) VVKINT-xx-MM or (2) VKINT-xx-MM or VKEXT-xx-MM cables (Fig. 2 & 3, required, not supplied), connect the

keyboard and mouse ports of a PS/2 CPU to “PC 1 KEYBD” and “PC 1 MOUSE” ports on the rear of the switch.

6. Using VEXT-xx-MM (Fig. 4, required, not supplied), connect the video port of a PS/2 CPU to “PC 1 VIDEO” port

on the rear of the switch.

7. Repeat steps 5 & 6 for connecting a second CPU to the remaining ports on the rear of the switch.

Fig. 4

Fig. 3Fig. 2

Fig. 1

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

V E X T - x x - M M V E X T - x x - M M

V K I N T - x x - M M V V K I N T - x x - M M

V K I N T - x x - M M P S / 2 M o u s e

P C 2 V I D E O

4 3

6 5

U S E R

4 3

6 5

4 3

6 5

P C 1 V I D E O M O N I T O R

P C 1 P C 2

P W R

4 3

6 5

4 3

6 5

4 3

6 5 M O U S E

K Y B D

R e a r V i e w o f K E E M U X - P 2

PS2

C P U

PS2

C P U

M a l e

6 p i n m i n i D I N

P S / 2

M a l e

6 p i n m i n i D I N

P S / 2

V K I N T - 6 / 1 0 - M M

V K E X T - 2 5 / 5 0 - M M

M a l e

6 p i n m i n i D I N

P S / 2

M a l e

6 p i n m i n i D I N

P S / 2

V V K I N T - 3 / 6 / 1 0 / 1 5 / 2 5 / 5 0 - M M

M a l e

1 5 H D

V G A

M a l e

1 5 H D

V G A

V E X T - 3 / 6 / 1 0 / 1 5 / 2 5 / 3 5 / 5 0 / 5 / 1 0 0 - M M

Units With Audio Support

(optional)

Connect the 3.5mm plug from speakers to the 3.5mm jack labeled "AUD OUT". Attach SA-xx-MM audio cables (purchased

separately) between the audio port on each CPU and the 3.5mm audio jacks marked "AUD 1" on the KEEMUX switch. Be sure

to connect the audio cables from each CPU to audio jacks of the same number as the keyboard, mouse, and video cable ports

connected to. ( See Fig. 5).

Power-Up Sequence

1. The KEEMUX-P2 is powered by the CPUs it is connected to (unless using a power supply with an option).

2. Turn ON power to monitor attached to the KEEMUX-P2.

3. Turn ON power to either or both CPU(s) attached to the KEEMUX-P2.

Power-Down Sequence

1. Turn OFF CPUs attached to the KEEMUX-P2.

2. Turn OFF power to monitor attached to the KEEMUX-P2.

Fig. 5

R e a r V i e w o f K E E M U X - P 2 - A U D

A U D O U T

A U D 2

S p e a k e r s

3 . 5 m m S t e r e o

P lu g

3 . 5 m m S t e r e o

J a c k

A u d i o P o r t

l i n e

out

O N E W I L L B E M A R K E D " l i n e

o u t " , " s p k r " , " h e a d p h o n e s "

O R W I T H T H I S S Y M B O L

3 . 5 m m S t e r e o

P lu g

3 . 5 m m S t e r e o

P lu g

S A - x x - M M

R e a r V i e w o f

P S / 2 C P U

P C 2 V I D E O

4 3

6 5

U S E R

4 3

6 5

4 3

6 5

P C 1 V I D E O M O N I T O R

P C 1 P C 2

P W R

4 3

6 5

4 3

6 5

4 3

6 5

M O U S E

K Y B D

A U D 1

4 3

6 5

4 3

6 5

4 3

6 5

4 3

6 5

4 3

6 5

4 3

6 5

USING THE NTI SWITCH

The switch can be operated by the front control panel or by keyboard control.

Front Panel Control

1. Pressing the touch switch on the front panel will toggle between CPU 1 and CPU 2 and connect the selected CPU to the

keyboard, monitor and mouse.

2. Holding down the "CPU SELECT" button for more than 2 seconds will cause the switch to cycle through 3 extended modes of

operation: SCAN, BROADCAST, and COMMAND (see below for Command, Scan and Broadcast Mode sections). Release

the button when the desired mode has been selected.

Keyboard Control

In order to control the switch with the keyboard, COMMAND Mode must be enabled. To enter/exit COMMAND Mode from the

keyboard:

Press

Command Mode

When the COMMAND Mode is ON, all 3 status LEDs on the keyboard will illuminate to indicate that COMMAND Mode is enabled

and the following functions are available: (NOTE: The user must exit COMMAND Mode in order to type to a CPU.)

Function: Keystroke:

Increment Port

Decrement Port

Toggle “SCAN” Mode

ON and OFF

Toggle “BROADCAST”

Mode ON and OFF

Sets scan time-out

period for each port.

Selects a specific

port

Exit COMMAND Mode

SCAN Mode

SCAN Mode is indicated by a flashing CPU port LED. The switch scans to either port with a CPU powered-ON. That port remains

active for the configured dwell time (default time is 5 seconds) before switching to the other powered-ON CPU port. See

COMMAND MODE Section for configuring the scan dwell time.

NOTE: The keyboard and mouse must remain idle for the full SCAN dwell time before the switch selects the other port.

Ior (move to next higher port)

Ctrl ~(ACCENT

KEY)

T--(xxx from 002 to 255. ie. t 002

would set the time-out period

for 2 seconds)

(0-2)

x (0-9)

Dor (move to next lower port)

CHORDED SEQUENCE- PRESS CONSECUTIVELY

AND KEEP KEYS PRESSED UNTIL ALL ARE PRESSED.

-PRESS CONSECUTIVELY

or PRESS EITHER KEY

KEY SYMBOLS LEGEND:

Esc `

Ctrl ~(ACCENT

KEY)

CPU 1 CPU 2 A flashing CPU LED means

that CPU is being scanned

and is active.

P--(P0x would be P01 or P02)

BROADCAST Mode

(USE WITH EXTREME CAUTION)

BROADCAST Mode is indicated when both CPU LEDs are illuminated. This mode allows the operator to send keystrokes to both

active CPUs simultaneously. However, BROADCAST Mode has some critical requirements:

1. BROADCAST Mode must be OFF when booting an attached CPU.

2. COMMAND Mode must be OFF for keystrokes to reach attached CPU(s) when in BROADCAST.

Keyboard Features

The keyboard configuration of each CPU is saved in the NTI Switch. For example, if the CPU attached to Port 2 had CAPS LOCK

and NUM LOCK selected the last time that CPU was accessed, then they will automatically be set when that CPU is accessed

again.

AUDIO SUPPORT

(Optional)

Audio support provides the following additional features:

•Audio signals from the same CPU that keyboard, mouse, and video signals are from can be received by the user.

•Audio inputs accept any standard line level audio (1Vrms or 2.5Vp-p).

•Audio outputs are capable of driving an 8 Ohm speaker load with 200mW of continuous RMS power.

Audio signals are switched along with the keyboard, mouse and video signals using the buttons on the KEEMUX switch.

DUAL VIDEO SUPPORT

(Optional)

Dual Video support enables CPUs with two video outputs to be connected to the KEEMUX switch and two user monitors to be

connected to view both sets of video signals. Both monitors must be of the type VGA multi-scan.

CPU 1 CPU 2 Two illuminated CPU LEDs

means that the switch is

in BROADCAST Mode.

RS232 CONTROL

(Optional)

RS232 Connections and Configuration

Remote Connection

The RS232 Interface is designed to meet the RS232C standard and can be controlled from any host CPU or other controller with

an RS232 communications port. The pin-out for the DB-9 connector on the unit can be found on page 7. A straight through DB-9

cable (not null modem) will work for most CPUs.

Baud Rate

The baud rate of the host CPU can be changed by using the menus in the RMTEST program (see "RS232 Interface Test

Program" below). The desired baud rate of 9600, 2400, 1200, or 300 may be set. A data protocol of 8 data bits, no parity, and 1

stop bit is used for communications. The baud rate of the KEEMUX is configured using dipswitches (see page 7).

Unit Address

To allow multiple units to be controlled from a single host port, the RS232 control interface is designed to allow "daisy chaining" up

to 15 units. In order to connect multiple KEEMUX units together a Matrix-Y-1 cable must be used. (See Fig. 6). See Fig. 7 for

the pinout of the Matrix-Y-1 cable.

NTI

SWITCH

CPU

RS232

First Unit

NTI

SWITCH

RS232

NTI

SWITCH

RS232

Second Unit Last Unit

RS232

Serial Port Matrix-Y-1 Matrix-Y-1 Matrix-Y-1

(Unit #1) (Source)

555

Jumper

Jumpers

Not connected to

source connector

(Unit #2)

9D Female9D Male 9D Male

Wiring Schematic of Matrix-Y-1 cable

Fig. 6

Fig. 7

OFF

1 2 3 4 5 6 7 8

Dipswitches

The dipswitches located next to the RS232 connection (Fig. 8) are used to configure the baud rate and

address of the KEEMUX. The default baud rate is 9600. The default address is 1. Use the charts

below to change the baud rate and address as needed.

RS232 Interface Test Program

RS232 communication is configured using the RMTEST program, located on the supplied floppy disk. This software allows a

user to test the functions of an NTI KEEMUX or Multi-user/Multi-platform switch RS232 interface. The RMTEST program

generates a main menu with the 3 selections described below:

MAIN OPTIONS

1. Matrix Options - send commands to the unit.

2. Setup Options - set COM port, baud rate, and unit address

3. Quit - quit the program

DIP SWITCH

The unit powers up with a default

baud rate of 9600 and a fixed data

protocol of 8 data bits, no parity, and

1 stop bit. To change the baud rate,

unit address, and loop back (more on

the unit address and loop back later),

an 8-SPST DIP switch on the panel

near the DB-9 connectors can be

used. This table shows the DIP switch

functions and their default positions.

SWITCH FUNCTION

DEF-

AULT

1 loop back ON

2 baud rate 0 ON

3 baud rate 1 ON

4 baud rate 2 ON

5 unit address 0 ON

6 unit address 1 OFF

7 unit address 2 OFF

8 unit address 3 OFF

BAUD RATE

The baud rate can be

changed by powering

down the unit,

changing the DIP

switch, and then

powering back up.

This table shows how

to set the baud rate.

DIP SWITCH BAUD

RATE

4 3 2

OFF OFF OFF 300

OFF OFF ON 600

OFF ON OFF 1200

OFF ON ON 2400

ON OFF OFF 4800

ON OFF ON 9600

ON ON OFF 9600

ON ON ON 9600

DIP SWITCH UNIT ADDRESS

8 7 6 5

OFF OFF OFF OFF 0 (not valid)

OFF OFF OFF ON 1

OFF OFF ON OFF 2

OFF OFF ON ON 3

OFF ON OFF OFF 4

OFF ON OFF ON 5

OFF ON ON OFF 6

OFF ON ON ON 7

ON OFF OFF OFF 8

ON OFF OFF ON 9

ON OFF ON OFF 10

ON OFF ON ON 11

ON ON OFF OFF 12

ON ON OFF ON 13

ON ON ON OFF 14

ON ON ON ON 15

UNIT ADDRESS

To allow multiple units to be controlled from a single host

port, the remote interface is designed to allow "daisy

chaining" of up to 15 units. By setting the appropriate

DIP switches, each unit can be given a unique address

(1-15). Then the unit will only respond to commands on

the bus if its address is embedded in the command. The

"loop back" DIP switch should be ON for the last unit in

the chain, and OFF for all other units. If only one unit is

being controlled, DIP switch 1 should be left ON. This

table shows how to set the unit address.

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