PSI-DATA/BASIC-MODEM/RS232
3-6
PHOENIX CONTACT
102906_01_en
3.3.3
Telecommunications Cable
RJ12/RJ11 connector
Connect the telecommunications cable to an RJ12/RJ11 connector on the front of the
device. Signals "a" and "b" are assigned to the middle pins, 3 and 4.
Figure 3-6
Connection using an RJ12/RJ11 connector
Table 3-1
Meaning of the terminal designations
Designation
Meaning
DCD (Data Carrier Detect)
Data carrier detected, connection established
TxD (Transmit Data)
Transmit data (refers to PC, PLC, etc.)
RxD (Receive Data)
Receive data (refers to PC, PLC, etc.)
RTS (Request To Send)
Request to send
CTS (Clear To Send)
Clear to send
DTR (Data Terminal Ready)
Ready (PC, PLC, etc.)
DSR (Data Set Ready)
Ready (modem)
RI (Ring Indicator)
Incoming call
GND (Signal Ground)
Signal ground
P i n 1
P i n 2
P i n 3
P i n 4
P i n 5
P i n 6
P i n 7
P i n 8
R D
+
R D
-
T D
+
T D
-
n . c .
n . c .
n . c .
n . c .
R J 4 5
P i n 1
P i n 2
P i n 3
P i n 4
P i n 5
P i n 6
R J 1 2
a 2
n . c .
a
b
b 2
n . c .
6 9 2 3 A 0 3 6
