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Professional Video Distribution Switch Crestron CNX-PVID8x3
34 • Professional Video Distribution Switch: CNX-PVID8x3 Operations Guide - DOC. 8159A
NOTE: The Crestron Viewport utility performs multiple system tasks, primarily via
an RS-232 or TCP/IP connection between the control system and a PC. It is used to
observe system processes, upload new operating systems and firmware, change
system and network parameters, and communicate with network device consoles and
touchpanels, among many other tasks. Viewport can also function as a terminal
emulator for generic file transfer. All of these functions are accessed through the
commands and options in the Viewport menus. Therefore, for its effectiveness as a
support and diagnostic tool, the Crestron Viewport may be preferred over
development tools when uploading programs and projects.
The following sections define how one would upload a SIMPL Windows program or
upgrade the firmware of the CNX-PVID8x3. However, before attempting to upgrade,
it is necessary to establish communications.
Communication Settings
NOTE: For laptops and other PCs without a built-in RS-232 port, Crestron
recommends the use of PCMCIA cards, rather than USB-to-serial adapters. If a
USB-to-serial adapter must be used, Crestron has tested the following devices with
good results:
Belkin (large model) F5U103
I/O Gear GUC232A (discontinued)
Keyspan USA-19QW (discontinued)
Results may vary, depending on the computer being used. Other models, even from
the same manufacturer, may not yield the same results.
The procedure in this section provides details for RS-232 communication between
the PC and the control system. If TCP/IP communication is preferred, consult the
latest version of the Crestron e-Control Reference Guide (Doc. 6052) or the
respective Operations Guide for the control system. These documents are available
from the Crestron website. Refer to the following figure for a typical connection
diagram when uploading files.
NOTE: Use a standard DB9 male to female “straight-through” cable.