User Guide Owner's manual
Serial Communication, cont’d
PVS 204SA • Serial Communication
4-8
PRELIMINARY
Updating Firmware
If the need arises, you can update the PVS’s rmware without taking the unit out of 
service. Follow the directions below.
Check the Extron Web (www.extron.com) site for firmware-related documents, 
instructions, patch files, and new firmware files before loading new firmware 
into the switcher. Extron recommends that you read the rmware release notes 
(available from the Web site www.extron.com) before beginning the firmware 
update.
This procedure must be performed using a PC, with the PC’s RS-232 port directly 
cabled to the PVS’s front panel Cong port. 
N  Each time you replace existing firmware, the switcher is reset to the factory 
default settings.
1.  Visit the Extron Web site (www.extron.com) and download the Firmware 
Loader le (FWLoader.exe) to your PC. Write down the lename and location 
for later use.
2.  Locate (on the Web site) the appropriate rmware le (PVS 204SA) you want 
to update. It has a lename ending in .s19 (PVS204_Vxxx.s19), where Vxxx 
indicates the version number (x.xx). Download the rmware from the Web 
site. The program automatically stores the firmware file on the PC in 
C:\Program Files\Extron Electronics\Firmware (a folder specic to that 
version). Write down the lename and location for later use.
C
  The firmware update file must have a filename extension of .s19. If the file 
does not have that extension, it could cause the unit to stop functioning.
3.  Connect a 2.5 mm conguration cable (Extron part # 70-335-01) between the 
front panel Cong port of the PVS and the serial (RS-232) port of the PC, and 
power up the PVS and PC. See chapter 3, “Operation and Setup”, “Front 
Panel Features and Operation” section, for details.
4.  On the PC, select Start > All Programs > Extron Electronics > Firmware Loader 
(folder)> Firmware Loader, and start the program.
5.  Select the Com port and Baud rate. Click OK. The PVS 204SA should be 
detected automatically.










