Setup
Connections
maxon motor control
EPOS4 Positioning Controller
Document ID: rel6852
3-49
EPOS4 50/5 Hardware Reference
Edition: May 2017
© 2017 maxon motor. Subject to change without prior notice.
3.3.12
USB (X13)
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
potential 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,
balance them.
• Insert the USB connector first, then switch on the power supply of the controller.
Figure 3-40
USB connector X13
Table 3-35
USB connector X13 – Pin assignment
Table 3-36
USB Type A - micro B Cable
X13
Head A
PC’s USB
Terminal
Head B
Signal
Description
Pin
Pin
1
1
V
BUS
USB bus supply voltage input +5 VDC
2
2
USB_D
−
USB Data
−
(twisted pair with Data+)
3
3
USB_D+
USB Data+ (twisted pair with Data
−
)
4
–
ID
not connected
5
4
GND
USB ground
USB Type A - micro B Cable (403968)
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
USB
USB Standard
USB 2.0 / USB 3.0 (full speed)
Max. bus supply voltage
+5.25 VDC
Max. DC data input voltage
−
0.5…+3.8 VDC
