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NTI KEEMUX Series PS/2 KVM Switch
Port assignments ( KEEMUX-P4 )
5VDC
2A
-
+
Please note: If the switches are being cascaded (such as that illustrated in Fig. 5 on page 5 under "Cascading"), make
note of which port each of the CPUs is connected to on each slave and which port each slave is connected to on the
master.
•
The ports on the slave connected to the port 1 port on the master would be numbered 01-04 with multiple
KEEMUX-P4s, the ports on the slave connected to port 2 would be numbered 05-08 (with multiple KEEMUX-P8s
they would be 01-08, and 09-16, etc.)
•
A connection to a CPU from the keyboard would be achieved by typing the appropriate port number. (See
Fig. 6 on page 6.)
•
No programming of the KEEMUX is necessary to achieve this control.
•
When cascading, if not all of the ports are used on each slave attached to your system, THE PORT NUMBER(S)
ASSOCIATED WITH THE UNUSED PORT(S) WILL NOT BE ACCESSIBLE when trying to control the switches
connected to the system.
connect to ports 7 or 8 while in Command Mode, the KEEMUX will ignore the attempt. )
Scan Mode
When in Scan Mode the KEEMUX scans each port with a CPU powered-ON. (The SCAN LED on the front panel will illuminate
and remain ON while in Scan Mode.) The port with the CPU powered-ON remains active while in use. When the switch becomes
idle for the configured time-out period (default time-out period is 5 seconds) the switch will connect to the next powered-ON CPU
port. See Command Mode section above for configuring the scan time-out period.
FYI: The keyboard and mouse must remain idle for the full scan time-out period before the switch will connect to the next
active port.
Broadcast Mode
(Use with extreme caution or commands intended for one CPU will be sent to all CPUs)
Broadcast Mode allows the operator to send keystrokes to all active CPUs simultaneously. However, Broadcast Mode has some
critical requirements.
•
BROADCAST LED must be OFF when booting any attached CPUs.
•
BROADCAST LED must be ON and COMMAND LED must be OFF for keystrokes to reach attached CPUs.
Note: The user must type somewhat slowly when in Broadcast Mode (less than 20 wpm) and cannot use the
<Backspace>
key.
Normal Mode
When all of the KEEMUX mode LEDs are OFF the user is in Normal Mode, controlling the CPU to which the user is connected
through the KEEMUX.
PORT 3
PORT 1
PORT 2
PORT 4
V
V
I
I
D
D
E
E
O
O
4
3
C
C
P
P
U
U
4
3
CPU 4
CPU 3
CPU 2
Figure 8- Connections grouped by port number
(I.e. if ports 7 and 8 are not used on the first slave and an attempt is made to
9
NTI
R
M
V
V
O
I
I
N
D
D
1275 Danner Dr
I
E
E
Aurora, OH 44202
T
O
O
www.nti1.com
O
2
1
Tel:330-562-7070
R
Fax:330-562-1999
Mouse
C
C
Keyboard
P
P
Daisy
Daisy
U
U
Out
In
2
1
PS/2 DEVICES
CPU 1
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