Setup
Connections
ESCON Module 24/2 Hardware Reference
3-24
CCMC | 2021-08 | rel9004
3.3.6
USB (J7)
Hot plugging the USB interface may cause hardware damage
If the USB interface is being hot-plugged (connecting while the power supply is on), the possibly high poten-
tial differences of the two power supplies of controller and PC/Notebook can lead to damaged hardware.
• Avoid potential differences between the power supply of controller and PC/Notebook or, if possible, bal-
ance them.
• Insert the USB connector first, then switch on the power supply of the controller.
Figure 3-15
USB Socket J7
Note
Column “Head B” (
Table 3-9) refers to USB terminals of your PC.
Table 3-9
USB Socket J7 – Pin Assignment & Cabling
Table 3-10
USB Type A - micro B Cable
J7 &
Head A
Head B
Signal
Description
Pin
Pin
1
1
V
BUS
USB BUS supply voltage input +5 VDC
2
2
D
−
USB Data
−
(twisted pair with Data+)
3
3
D+
USB Data+ (twisted pair with Data
−
)
4
–
ID
not connected
5
4
GND
USB ground
USB Type A - micro B Cable (403968)
Cable cross-section
According to USB 2.0 / USB 3.0 specification
Length
1.5 m
Head A
USB type “micro B”, male
Head B
USB type “A”, male
