Features:
1. One button solution can wholly control the device in e-classroom.
2. Build-in hundreds control code of different brands projectors, it is easy to set and use.
3. Using serial port to control projectors, directly and stability.
4. Adopted advanced program, easy to upgrade the chip.
5. Adopted 400mhz broadcast video amplifier, which ensure the high quality of picture even long distance transmission.
6. Build-in digital volume adjustment.
7. Reserve ports of network, microphone, usb, pc, great convenient for operator.
8. Prolong shutdown time to protect the projector.

Technical specification:
Appearance: metal cuboid box
Dimension: 271mmx84mmx124mm
Table hole size: 261mmx74mm
Input power: ac200-240v, 50/60hz
Output power: 4 channel, 5a/each channel
Resolution: up to 1600*1200, 75hz
Screen power: 2000w
Projector power: 2000w
Video input/output: 3ways in & 2ways out
1vp-p signal(75ohms), 300m bandwidth
Audio input/output: 1vp-p signal level(600ohms), unbalanced)
Vga input/output: 3ways in & 2ways out
1vp-p signal level(75ohms), 300m bandwidth
S-video input/output: 2ways in & 1way out
1vp-p signal level(75ohms), 300m bandwidth
Usb / mic /net: input / output each group
Power consumption: less than 15 w
Operation temperature: -10¦c-60¦c
Supported serial ports parameters:
Baud rate: 300-115200bps
Parity: no/odd/even
Data bit: 7bit or 8bit
Stop bit: 1bit
Communication: 20 meters