Interface Circuit; Rs-232C; Current Loop - Star DP8340 SERIES User Manual

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8-2.

Interface Circuit

8-2-1. RS-232C

Input (RXD, CTS)
D
TYPE
ONLY
Output (DTR, FAULT, TXD, RCH, RTS)
Figure 8-1. RS232-C Interface

8-2-2. Current Loop

Input (TTY-RXD, TTY-RXDR)
Output (TTY-TXD, TTY-TXDR)
Note: Resistance should be set so that Current Loop is restricted to the range of
10 ~ 20 mA.
Figure 8-2. Current Loop Interface
– 29 –

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