ITEM C 1-Series - Connection: USB [X19]; Device Side [X19]; Counterplug [X19]; Pin Assignment [X19]

Electrical installation
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8.9 Connection: USB [X19]
8.9.1 Device side [X19]
USB female, type B
8.9.2 Counterplug [X19]
USB male, type B
8.9.3 Pin assignment [X19]
Table 39: Pin assignment: USB interface [X19]
Pin No.
Denomination
Values
Specification
1 VCC + 5 VDC
2 D- Data -
3 D+ Data +
4 GND GND
Figure 25: Pin assignment: USB interface [X19], front view
8.9.4 Cable type and design [X19]
Interface cable for the USB interface, 4 cores, shielded and twisted.
In order to set up a USB connection, it is mandatory to use a twisted and shielded (4-core) cable since, otherwise, the
transmission may be subject to interferences. In addition, it must be ensured that the cable has a wave impedance of 90 Ω.