Total volume adjustment, input/output volume adjustment for each channel, archive call function (86 boxes)
Technical indicators
1. Operating system: IPS capacitive touch screen, no operating system, running on power, 485 interface, FPGA pure hardware display and control screen, driver
2. Size: 4 inches
3. Resolution: 480 * 480, color: 64K, 16 bit RGB
4. Voltage: 9-18V
5. Communication interface: RS485
6. Effective screen display size: length * width=71.9 * 70.2mm
7. Product size: length * width * height=90.7 * 90.7 * 27.9m