12
Communication Interfaces
The EM3080-W can communicate with the host device via any of the following interfaces:
TTL-232: This interface is applicable to most system architectures. For those requiring RS-232, a
TTL-232 to RS-232 conversion circuit is needed. The EM3080-W
’s TTL-232 interface supports baud
rates from 1200bps to 115200bps; it does not support hardware or software flow control. Its default
settings are 9600bps, 8 data bits, no parity check and 1 stop bit.
USB HID Keyboard: Based on USB connection, the engine
’s transmission is simulated as USB
keyboard input. It works on a Plug and Play basis and no driver is required.
USB COM Port Emulation: The USB port on the host device is emulated as a serial port with the
same data transmission and configuration as a real serial port. A driver is required.
USB DATAPIPE: This protocol is defined by Newland. A driver is required when using this protocol to
communicate with the engine.
HID-POS: HID-POS does not require a custom driver. However, an HID interface on Windows 98
does. All HID interfaces employ standard driver provided by the operating system. Use defaults when
installing the driver.
