Configuration, displays and display elements
7.4 The SET / SELECT button
SCALANCE X-300
Operating Instructions, 05/2016, A5E01113043-20
149
Pin assignment
The following table shows the pin assignment of the RJ-11 plug and the D sub female
connector:
Image 7-2
RJ-11 jack (schematic)
RJ-11 plug
D-sub 9-pin, female
Pin
Assignment
Pin
Assignment
1
n. c.
1
n. c.
2
n. c.
2
RD (Receive Data)
3
TD (Transmit Data)
3
TD (Transmit Data)
4
SG (Signal Ground)
4
n. c.
5
RD (Receive Data)
5
SG (Signal Ground)
6
n. c.
6
n. c.
7
n. c.
8
n. c.
9
n. c.
7.4
The SET / SELECT button
The SET/SELECT button is located on the top of the housing of devices of the X-300 EEC
series. On all other devices, this button is on the front panel of the housing beside the LED
display. The SET/SELECT button has several functions that are described below.