![background image](http://html1.mh-extra.com/html/kramer/nt-52p/nt-52p_user-manual_2001015049.webp)
42
NT-52P - Technical Specifications
9.1
Data Handling Performance
The
NT-52P
is designed to support mainly AV-relevant RS-232 communication.
These devices must have overall data bandwidth limits high enough in most AV
installations to support the required communication bandwidth.
In extremely demanding cases, we recommend that you take into account the
bandwidth limitations.
The total sustained data bandwidth that each device can handle for all ports
simultaneously is 150kbps.
9.2
Example Bandwidth Calculation
The
NT-52P
has two serial ports. Each serial port can support up to:
•
150kbps / 2 = 75kbps
If each protocol command is 100 bytes, (that is, 800 bits), you can safely send and
receive a minimum of 96 commands per second on each serial port. This is shown
using the following calculation:
(150kbps * 1024) / 800 bits / 2 = 96
The same calculation applies to all devices. A similar calculation applies when
fewer ports are used at the same time where a higher bandwidth per port can be
achieved.
In critical applications requiring a lossless data transfer, we recommend that
communication on all the other ports is stopped when making a long file transfer (for
example, when performing a firmware upgrade via one of the serial ports).