Toshiba B-SX4T-GS20-QM-R User Manual
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RD
CTS
DSR
CTS
DSR
SN75189 or equivalent
SN75188 or equivalent
TD
RTS
DTR
RTS
DTR
(16) Interface Circuit
z
Input Circuit
z
Output Circuit
z
Signal Levels
Input Voltage
H ......+3 ~ +15 V
L.......-3 ~ -15 V
Output Voltage H ......+6 ~ +13 V
L.......-6 ~ -13 V