Siemens SCALANCE X-300

Configuration, displays and display elements
7.3 XR-300 diagnostics port
SCALANCE X-300
Operating Instructions, 10/2010, A5E01113043-10
139
Pinout of the RJ-11 jack of the diagnostics port
Figure 7-3 RJ-11 jack (schematic)
Pin number Pinout of the RJ-11 jack
1 n.c.
2 n.c.
3 TD (Transmit Data)
4 SG (Signal Ground)
5 RD (Receive Data)
6 n.c.
Pinout of the XR-300 (connecting cable for the diagnostics port)
A connecting cable for the diagnostics port has a 9-pin D-sub female connector for the PC
and an RJ-11 plug at the other end. The following table shows the pinout.
RJ-11 plug D-sub (9-pin, female)
Pin number Assignment Pin number 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.