Avocent Emerge MPX Installer/User Manual page 64

50 MPX Extender Installer/User Guide
available to the device attached to its serial port. Serial data is passed in real-time and is not
buffered for subsequent reading.
Serial passthrough modes are enabled via the web interface of an MPX transmitter. Serial port
settings, such as baud rate, flow control, data size, stop bits and parity are also configurable only
via the transmitter's web interface. When serial passthrough is enabled, these settings are
forwarded to all receiver units within the extender network. When serial mode is disabled, there is
no processing of serial data on either the transmitter or the receiver(s).
Serial settings on all serially attached devices must correspond with the serial settings established
via the web interface on the transmitter.
In summary, serial operation of the product is as follows:
• If simple passthrough is selected, then data received at the serial port of the transmitter will be
broadcast through the extension network to all bound receivers and, in turn, to all serially
attached display devices.
• If primary only passthrough is selected, then data received at the serial port of the transmitter
will be sent only to the primary receiver. This mode allows bidirectional communication with a
single device. Using the Primary radio button provided on the Bindings page, it is possible to
switch serial control from one receiver to another. In addition to serial connectivity, IR control
and EDID passing are tied to the primary receiver. Thus, it is important to consider the full
impact of selecting a new primary receiver.
• If serial passthrough is disabled, then serial data received at the serial port on the transmitter
will be ignored.
• If any passthrough mode is enabled and a primary receiver is selected, then data received from
the device attached to the serial port of the primary receiver will be forwarded across the
extension network to the MPX transmitter and, in turn, to the device attached to transmitter's
serial port.
• If a primary receiver is not selected and serial passthrough is enabled, then serial data will be
broadcast from the transmitter to all bound receivers; however, bi-directional transfers will not
be available.
• All serial settings must be made via the web interface on the transmitter. The web interface on
the receiver does not offer serial configuration options.