Viewtech MHDV04P - MENU > DEVICE > Keyboard; Menu > Device > Rs232 & Rs485

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2-2-4. MENU > DEVICE > Keyboard
Press
to find and select keyboard from the
list.
2-2-5. MENU > DEVICE > RS232 & RS485
Press
to select a device for each ports.
RS232: Supports Text In (POS) device. PTZ
and Keyboard
RS485: Supports Text In (POS) device ,PTZ
and Keyboard.
Note : Text In devices (e.g. Cash Register)
needs to use ASCI code for Text In info on DVR