5
2.4 RS-232 Interface Specifications
2.4.1 RS-232 connector specifications
The following describes specifications of the RS-232 connector
connected to the external device.
Figure 2.1 RS-232 connector(Seen from the front of the module)
Table 2.3 RS-232 connector specifications
Pin No.
Mnemonic
Signal name
Signal direction
AJ65BT-R2N
External
device
1
CD
Receive carrier detect
2
RD(RXD)
Receive data
3
SD(TXD)
Send data
4
DTR(ER)
Data terminal ready
5
SG
Signal ground
6
DSR(DR)
Data set ready
7
RS(RTS)
Request to send
8
CS(CTS)
Clear to send
9
Unused
-
-
5
4
3
2
9
8
7
6
1
Summary of Contents for AJ65BT-R2N
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