USB CPU Support, Introduction | Network Technologies ST-2U guide

NTI NODEMUX SERIES UNIVERSAL KVM SWITCH

USB CPU SUPPORT

(Optional)

Introduction

The NTI ST-2U-UUNIVERSAL KVM Switch has 2 additional female USB type B ports that allow USB compatible CPUs (SUN, MAC, or WINxx) to be connected to the switch.

General Notes

The ST-2U-U should have all cables attached before powering up. If no cable is plugged into either of the 8 pin miniDIN CPU ports labeled CPU 1 or CPU 2 (see Fig. 15) on the ST-2U-U, then their respective USB ports labeled for CPU 1 USB and CPU 2 USB on the ST-2U-U will become the default active CPU port(s).

The USB ports on the ST-2U-U are HOT PLUGGABLE.

The 8 pin miniDIN cables are not HOT PLUGGABLE. They must be plugged in at power up to operate correctly.

RearViewofST-2U-U

USB	CPU2	CPU1
Ports	USB	USB
Ports
	VIDEO2	VIDEO1	MONITOR	9VDC
				CPU2 CPU1 USER	.5A
				-	+

Figure 14- USB device ports on the ST-2U-U

8pinminiDIN userports

Keyboard translation

The chart below shows the capabilities of devices controlling certain CPU types through the ST-2U-U KVM switch.

KEYBOARDS				CPUS		USB (MAC)
	PS/2 (WINxx)	SUN	MAC		USB (SUN)	USB (MAC)
PS/2	Normal	See charts	See charts		See charts	See charts
		on pg. 10	on pg. 10		on pg. 10	on pg. 10
SUN 5C	Normal	Normal	Normal		Normal	Normal
MAC ADB	Normal	No SUN	Normal		No SUN	Normal
		translation			translation

Normal= No translation necessary- keyboard functions normally

USB (WINxx)

Normal

Cables

Connect the USB CPU to the NTI ST-2U-U KVM switch using a USB-AB-xx cable (not supplied).

LED Operation

The LEDs do not operate as described earlier in this manual for the ST-2U for SCAN and BROADCAST.

•For SCAN- the LED does not flash. The LED stays on continuously while the indicated port is active.

•For BROADCAST- both LEDs might not illuminate, depending on the type of CPU connected.