CTRL001 Technical specifications
HITACHI DIGITAL MEDIA, Hitachi Europe Ltd, Whitebrook Park, Lower Cookham Road, Maidenhead, Berkshire SL6 8YA UNITED KINGDOM
Tel: +44 (0)1628 585 000 Fax: +44 (0)1628 585 500 www.hitachidigitalmedia.com
The specification above and photography is for reference only and may be subject to change.
Operation
The unit will remain in unpowered state until either power is detected
on USB input or on/off button is pressed
• On USB power detect
Retrieve last selected channel from non-volatile memory and send
power-on command to projector followed by channel select command.
• On USB power down
Start timeout.
• On power button press when powered down
Retrieve last selected channel from non-volatile memory and send
power on command to projector followed by channel select
command. Start timeout.
• On power button press when powered up
Send command to projector to turn off. Disconnect power.
• On channel button press when powered down
Retrieve last selected channel from non-volatile memory and send
power on command to projector followed by channel select
command. Start timeout.
• On channel button press when powered up
Step to next channel, save channel number in non-volatile memory
and send channel command to projector. Start timeout.
• On ten second timeout
Disconnect battery power.
CONNECTORS
USB type B socket to PC/laptop on bottom of board
USB type A socket to whiteboard on bottom of board
RJ45 socket RS232 to projector on top of board
USB type A socket for USB memory stick on top of board
SWITCHES
ON/OFF Momentary contact push button Power ON/OFF. Automatic power OFF after 10 seconds if no USB power.
CHANNEL Momentary contact push button Select next channel
INDICATORS
ON Green LED Illuminated when USB power detected or push button pressed
ERROR Red LED Flash briefly every 5 seconds when battery is low.
Flash three times quickly if communication with projector fails
LINKS
1 link jumper To force manual only operation
3 further jumper links on pcb For future enhancements
BATTERY
Holder for 2/4 AA cells At least 6 months life
Provision for further inputs and indicators on pcb
DIMENSIONS
Dimensions (H x W x D) 130 x 67 x 30mm
Weight 150g
RJ45 socket USB type A socket
USB type A socket USB type B socket
07/08
