Epson C8230, C82305 RECOMMENDED CIRCUIT CONNECTIONS, Figure 4. RS-232D, Figure 5. Current Loop

RECOMMENDED CIRCUIT CONNECTIONS

Recommended line driver and line receiver for RS-232D signal level settings. (As viewed from the host computer.)

Figure 4. RS-232D

Serial Interface Card

Line Receiver

Recommended line interface circuit for 20mA Current Loop signal level settings. (As viewed from the host computer.)

Figure 5. Current Loop

Note

The value of "R" should be selected so that the loop current is set between 10 and 20 mA. The "+v" should be 3V to 24V.

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