Extron electronics DVCM 50 User Manual page 19

DVD and VCR (mode selection) buttons — Use these buttons to switch the
1
DVCM 50 operating mode between DVD and VCR. After one of these buttons
is pressed, the DVCM buttons issue commands that control only the device
with which the button is labeled (DVD or VCR).
For example, if you press the DVD button, the DVCM switches to DVD
mode. Subsequently, each DVCM button that you press issues one of its
programmed DVD commands (to which only the DVD player responds).
If the DVD player is a combination DVD/VCR, the DVCM sends only
commands that activate the device's DVD functions. If the DVCM is already
in DVD mode, pressing its DVD button does not cause it to switch modes.
The DVD and VCR buttons each have four memory blocks that can be
programmed with commands. In addition, pressing either mode selection
button always causes the DVCM to switch to the mode of the button that was
pressed.
DVD indicator LED — This LED glows amber when the DVCM is in DVD
2
mode.
VCR indicator LED — This LED glows amber when the DVCM is in VCR
3
mode.
4 Tx (Transmission) LED — This green LED blinks while the DVCM is
transmitting IR commands. It also blinks when any programmed front panel
button is pressed. If a button is held down, the Tx LED continues to blink
until the button is released.
If a button that was not programmed is pressed, the Tx LED does not blink.
5 Confi guration port — This port is used for system confi guration and for
loading control fi les into the DVCM. Commands can be received through this
port from the PC, using Simple Instruction Set (SIS
confi guration software. The protocol for this confi guration port is as follows:
• 9600 kb/sec
• 8 data bits
• 1 stop bit
• No parity
1
6
9
5
Computer
9-pin D
Pin 2
Pin 3
Pin 5
2.5 mm connector cable for the confi guration port
See chapter 5 for details about using the software to confi gure the system.
6 feet
(1.8 m)
Part #70-335-01
Sleeve (Gnd)
Connection TRS Plug
Computer's RX line Tip
Computer's TX line Ring
Computer's signal ground Sleeve
DVCM 50 • Confi guration and Operation
™ ) or the Windows-based
To Front Panel
Config Port
DVCM 50
DVD & VCR CONTROL
DVD VCR Tx
TITLE MENU
Tip
TUNER
Ring
ENTER TV/VCR
PREV/REW PLAY NEXT/FWD PAUSE
CONFIG
STOP
DVCM 50
3-3