Newland EM20-85, Integration Manual

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Chapter 4 Electrical Specifications
Power Supply
Do not power up the EM20-85 until it is properly connected. Be sure the power is cut off before connecting a cable to or
disconnecting a cable from the host interface connector. Hot-plugging could damage the engine.
Unstable power supply or sharp voltage drops or unreasonably short interval between power-ons may lead to unstable
performance of the engine. Do not resupply the power immediately after cutting it off.
DC Characteristics
Operating Voltage
Table 4-1
Parameter Description Minimum Typical Maximum Unit
EXT_VCC Input Voltage 4.75 5.0 5.25 V
EXT_VCC Waveform
Figure 4-1