Pfeiffer Vacuum CENTERONE Instructions D'installation page 12

Installation
B-type USB
B-type USB
4 3
1 2
A-type USB
A-type USB
1 2 3 4
12
Pin Signal
Infeed for relays with a higher switching capacity
25 +24 V DC, 200 mA
1, 7 GND
2 n.c.
1) 200 mA fuse protection with a PTC element, self-resetting after the CenterTwo or CenterThree is
switched off, or the RELAY connector is removed. Meets the requirements for grounded protective
extra-low voltage.
Fig. 14: Sub-D socket
The B-type USB port facilitates direct communication with the CenterOne/CenterTwo/
CenterThree via a computer (e.g. firmware update, parameter storage (read/write)).
Pin Assignment
1 VBUS (+5 V)
2 D-
3 D+
4 GND
 Connect a USB port with a shielded cable (electromagnetic compatibility) to the USB
terminal on the back of the device.
USB Type B
The A-type USB port, which has master functionality, is located on the front and is used
for the connection of a USB memory stick (for instance, for firmware updates, parameter
storage (read/write), data logger).
Pin Assignment
1 VBUS (+5 V)
2 D-
3 D+
4 GND
 Connect the USB memory stick to the USB port on the front of the device.
1)