Standard SCM version control machine 
 Controller control panel comes with five serial ports, 8 pairs of I / O, can be connected to the main equipment are as follows: 
 Comes with: voice, LED, a / collection card institution / bar code printer, a IC / ID card readers / barcode scanners, intercom extension 
 Plug-in: a long-distance card reader, a garage display, with the computer via RS422 connection 
 Each wave of the control panel switches, you can set the device address. 
 Controller supply voltage of 220V, to all parts of the supply voltage: DC5V, 12V, 24V. And can give long-distance reader for DC12V power supply.