turck BL20-GW-CANOPEN, User Manual, Page: 22 / 95

BL20 Philosophy
D301087 1211 - BL20 CANopen 2-8
2.2.7 Jumpers
Jumpers (QVRs) are used to bridge a connection level of a 4-wire base module. They can be used to
connect potentials in relay modules (bridging the relay roots); thus considerably reducing the amount
of wiring.
2.2.8 Marking Material
„
Labels: for labeling BL20 electronics modules.
„
Markers: for colored identification of connection levels of BL20 base modules.
„
Dekafix connector markers: for numbering the mounting slots on BL20 base modules.
Figure 2-10:
Jumpers
Figure 2-11:
Marking material