... test,Video 3. Number buttons keyboard 4. RS485, RS232, Multi-protocol 5. OEM Key features:1) Portable design; set ... NTSC/PAL auto-identify, it doesn’t need to set by manual9) Support protocol PELCO-P,PELCO-D, KALATEL etc10) ... Black, YellowVideo TestSignal ModeNTSC/PAL automatically suitableDisplay2.5 inch LCD screenVideo Input1 channel BNCVideo Output1 channel BNCPTZ Control and TestCommunicationRS232 ...