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RE 30126-B/09.13 | Installation and Operation
2.6
Installation Local Bus
The local bus is used to connect the individual amplifier cards of the HACD family.
Up to 32 cards can be connected. Each amplifier must be assigned a clear bus ad-
dress.
The connection is established using a CAN protocol with a baud rate of 250kbit. The
maximum length of the most distant amplifier cards must not exceed 280m. Moreover,
the maximum length of the branch lines of 1 m must be observed.
Fig. 3 Schematic structure of "Local Bus"
Data is to be transmitted via a shielded twisted-pair cable.
Two bus terminating resistors of 120 Ohm are required.
Hydraulics | Bosch Rexroth AG
Installing the VRPD 2
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