Network Technologies KEEMUX-Px operation manual Scan Mode, Broadcast Mode, Normal Mode

NTI KEEMUX Series PS/2 KVM Switch

5VDC

2A

-+

Port assignments ( KEEMUX-P4 )

PORT 3		PORT 1
PORT 4	PORT 2				NTI
DI	DI	DI	DI	N		R
V	V	V	V	M
				O
E	E	E	E	I	1275 Danner Dr
				T	Aurora, OH 44202
O	O	O	O
				O	www.nti1.com
4	3	2	1	R	Tel:330-562-7070
					Fax:330-562-1999

C

C

C

C

Mouse

P

P

P

P

Keyboard

Daisy

Daisy

U

U

U

U

Out

In

4

3

2

1

CPU 4

CPU 3

CPU 2

CPU 1

PS/2 DEVICES

Figure 8- Connections grouped by port number

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 the CPUs 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. (I.e. if ports 7 and 8 are not used on the first slave and an attempt is made to 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.

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.

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