40 MPX1000 Extender Installer/User Guide
• The web interface of each unit offers an IR Local Loopback setting. This setting affects IR
local loopback only. Altering this setting has no effect upon the flow of IR data across the
extension network.
Figure 4.7 illustrates the flow of IR data from the MPX1000 transmitter to a single MPX1000
receiver. This data, however, will be received by all bound receivers. This functionality allows an
administrator to send control strings such as on/off to display devices from the equipment rack.
Figure 4.7: IR Flow: Transmitter to Receiver
Figure 4.8 illustrates the flow of IR data from the primary MPX1000 receiver to the MPX1000
transmitter. This allows a presenter to send control strings, such as play/pause, to source devices
from the location of the display device. A single IRB-100 dual emitter is supplied with the
MPX1000 transmitter. Should it be necessary to control more than two source devices, Avocent
offers the IRB-Y splitter, which allows two IRB-100 dual emitters to be attached to a single
MPX1000 transmitter. Additional IRB-100 emitters may also be purchased separately. The
MPX1000 transmitter, or receiver, is capable of driving up to 4 emitters (two IRB-100s).
Figure 4.8: IR Flow: Primary Receiver to Transmitter