NTI RT-OS LP User Manual

V 1.1 / June 05 / MBe

Less noise More sound•

RT-OS LP

Low-Power Output Switcher

User Manual

V1.1

NTI Headquarters
Im alten Riet 102, 9494 Schaan
Liechtenstein / Europe
Phone: +423 – 239 6060, Fax: +423 – 239 6089

[e-mail], www.nt-instruments.com

RT-OS LP User Manual

1 DESCRIPTION

NTI’s RT-OS LP is a low-power output switcher that is controlled from a PC through an USB
link. The switcher comprises two (2) balanced XLR inputs and four (4) XLR outputs that are
normally used as a two-channel 1:2 matrix. Alternatively, the RT-OS LP can also be operated
as a single-channel 1:4 matrix.

•

Device ID: define the individual device ID of the RT-OS LP via the DIP-switch on the
rear panel (chapter

2.3). Up to four RT-OS LP units can be controlled from one PC.

•

1:4 matrix operation: connect INPUT B (or A) externally to IN LINK A (or B).

•

LEDs: the four LEDs on the front panel indicate the active outputs (active ON).

• GND LIFT: these switches allow disconnecting the audio ground (Pin 1 of XLR) of the
corresponding output connectors.

NOTE The RT-OS LP must only be used as an output switcher, whereby the input

current must not exceed 80 mA.

USB Addr ess

(Dip-switch)

USB Cable

USB

Interface

Input A (XLR)

Output A1

(XLR)

Output B1

(XLR)

Output A2

(XLR)

Output B2

(XLR)

Input Link A

(XLR)

Input Link B

(XLR)

Input B (XLR)

InputLink -> 1:4 matri

x

*) wiring of opti o n A

*) *) * ) *)

GND GND

Fig 1 RT-OS LP block diagram

p. 2/6