Setting The Line Modulation - Siemens 7XV5662-0AC02 Manual

3.4

Setting the Line Modulation

You can set the modulation on the line using the jumpers X36 and X37. The modulation is set to TC-PAM4
(Trellis-Coded Pulse Amplitude Modulation) ex works. If you change the modulation, you can reduce the
symbol rate (frequency spectrum) on the line. This gives you the option of adapting the CC-CO devices to
fewer suitable cables or slightly increasing the range.
NOTE
i
i
The same modulation type must be set on the main unit and the secondary unit. The disturbance sensitivity
can be reduced for a higher TC-PAM value.
Table 3-2
Modulation
TC-PAM32
TC-PAM16
TC-PAM8
6
TC-PAM4
[dw_jumper_X37_X36, 1, --_--]
Figure 3-4
6 Factory setting
Accessories, Communication Converter - Copper/Synchronous Interface, Manual
C53000-B1174-C190-1, Edition 01.2022
Jumpers
X37
1-2
1-2
2-3
2-3
Setting the Modulation
Application Examples and Configuration

3.4 Setting the Line Modulation

X36
1-2
2-3
1-2
2-3
23