Leuze BPS 307i - Cable Lengths and Shielding

Electrical connection
Leuze electronic GmbH + Co. KG BPS 307i 50
Tab.7.4: Service USB pin assignment
Pin Designation Assignment
1
2
5
4
3
1 VB Sense input
2 D- Data -
3 D+ Data +
4 ID Not connected
5 GND Ground
NOTICE
Self-configured cables!
Ä The entire USB interconnection cable must absolutely be shielded acc. to the USB specifi-
cations.
Ä The maximum cable length of 3m must not be exceeded.
7.6 Cable lengths and shielding
Observe the maximum cable lengths and the shielding types:
Connection Interface Max. cable length Shielding
BPS service USB 3m Shielding absolutely necessary
acc. to USB specifications
BPS power sup-
ply unit
30m Not necessary
Cable length according to the data rate
NOTICE
Data cables for the SSI interface!
Ä Use only shielded and twisted-pair cables as data line for the SSI interface.
Twisting: pin1 with 2, pin3 with 4
The shield must be connected at both ends.
Ä Do not lay the data line parallel to power cables.
The maximum possible cable length of the SSI connection is dependent on the used cable and the data
rate.
Tab.7.5: SSI cable lengths according to the data rate
Data rate
[kbit/s]
80 100 200 300 400 500 600 800
Maximum
cable
length
[m]
500 400 200 100 50 25 18 15