Mitsubishi MELSEC Q Series Handbook

2 SERIAL COMMUNICATION MODULE REPLACEMENT
2 - 11
(3) Comparison between QnA series and Q series
:Compatible, :Partial change required, ×:Incompatible
*1 The RS-232 and RS-422/485 recommended cables are listed in the Q series serial communication module manual.
*2 Use the exclusive products listed in the Q series serial communication module manual as the connector shell of the cable to
connect to the Q series serial communication module.
Item
Specifications
Compat-
ibility
Precautions for replacement
QnA series Q series
AJ71QC24N
AJ71QC24N-R2
AJ71QC24N-R4
QJ71C24N
QJ71C24N-R2
QJ71C24N-R4
RS-232
Cable
Use a cable that is compliant with the RS-232 standard.
*1
Cable length Max.15m
Applicable
connector for
external wiring
(side of
connection cable
for connecting to
the module)
D-Sub 25P
(male, screw type)
D-Sub 9P
*2
(male, screw type)
The connector must be
changed.
RS-422
Cable (Same as RS-422/485) -
The Q series does not have the
RS-422 interface.
The interface to be used must
be changed.
Applicable
connector for
external wiring
(side of
connection cable
for connecting to
the module)
D-Sub 25P
(male, screw type)
Connected to the RS-232 or RS-
422/485 interface.
RS-422/485
Cable
Cable length Max.1200m (overall distance)
External wiring
(side of
connection cable
for connecting to
the module)
Connected to terminal block
For details on the connection
method, refer to the manual.
Item
Cable type
Number of pairs
Conductor resistance (20 )
Insulation resistance
Dielectric withstand voltage
Electrostatic capacitance (1kHz)
Characteristic impedance
(100kHz)
Description
Shielded cable
3P
88.0 /km or less
10000 M -km or less
500 VDC for 1 minute
Average 60nF/km or less
110 10
*1

Mitsubishi MELSEC Q Series Specifications

General

Brand	Mitsubishi
Model	MELSEC Q Series
Category	Controller
Language	English