42
5
OPTION
42
OPTION
Chapter
5
RS-232C pin assignment
* This connection diagram shows cables in the case where the PC in use is DTE (data terminal
equipment). If the M252B is connected to DCE (data circuit terminator equipment) such as a
modem, use straight type cables.
* Also, recheck the connector shape and signal lines (pin assignment) of the equipment you use
before preparing cables.
5-4.
RS-232C Settings
Select transmission rate.
Select parity bit.
Name of setting
46: RS-232C Transmission Rate
Selection item
0. 1200bps
1. 2400bps
2. 4800bps
3. 9600bps (initial value)
Caution
The setting must be the same as the connecting equipment.
Name of setting
47: RS-232C Parity Bit
Selection item
0. Even
1. Odd (initial value)
2. Non
Caution
The setting must be the same as the connecting equipment.
1
2
3
4
5
6
7
8
9
RxD
RTS
CTS
SG
DTR
TxD
(Unused)
(Unused)
(Unused)
1
2
3
4
5
6
7
8
9
RxD
RTS
CTS
SG
DTR
TxD
RI
DSR
DCD
M252B
PC or
Crossing cable
D-Sub9pin
female
D-Sub9pin
female
No.
I/O
Description
1
‐
(Unused)
2
IN
RxD
3
OUT
TxD
4
OUT
DTR
5
*
SG
6
‐
(Unused)
7
OUT
RTS
8
IN
CTS
9
‐
(Unused)
the like
46: RS-232C Transmission Rate
47: RS-232C Parity Bit
Содержание M525B
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