6
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2.3 Specifications
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Transfer system
Start-stop synchronization
Baud rate
2400, 4800, 9600, 19200 bps
Data length
7 or 8 bits
Parity
Even, odd, or none
Stop bits
1 or 2 bits
Delimiter
CR+LF, CR
Handshake
hardware
Input voltage levels
+5 V to +15 V
-15 V to -5 V
ON
OFF
Output voltage levels
(load impedance 3 k
Ω
to 7 k
Ω
)
+5 V to +9 V
-9 V to -5 V
ON
OFF
RS-232C Interface Connector Pin Assignments
(D-subminiature 25-pin female)
NOTE
Signal Assignments and Explanation
Connector (Dsub)
Pin number
Circuit
Description
RS-232C
CCITT
2
BA(TxD)
103
Transmitted Data
3
BB(RxD)
104
Received Data
4
CA(RTS)
105
Request to Send
5
CB(CTS)
106
Clear to Send
7
AB(GND)
102
Signal Ground
20
CD(DTR)
108/2
Data Terminal
Ready
Other pins
Unused
2.3 Specifications
Selected by DIP switch.
Electrical characteristic
Connector
The connector on the 9593-01 is for terminal (DTE).
