II.Functions:
● 只与电脑型排队机电脑主机配合使用。
● With an input port, five output ports and RJ45 socket, it can connect with the window display, the main display and ticket-caller.
● With speaker output port, it can connect with active or inactive sound box and ceiling speaker.
● With volume button, it can adjust the volume at any time as required.
● With power switch button, it can turn on/off the power of Main Control Box manually.
● Attached with switch power supply, model: LB-81-62  DC24V 6.3A
● Working voltage: AC220V; DC24V.
● Size：253x74x233mm(LxWxH)