Rs-485 Two Wire Connection - Bosch AMC2 Installation Manual

AMC2 Modular Controller
The following conditions apply for an RS-485 bus system:
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To use RS-485 mode at the AMC2-4R4 , connect the data cables to the pluggable screw
connector of the RS-485 host interface. The setting of the AMC2-4R4 must correspond with
the settings of the RS-232 / RS-485 converter.
Figure 4.11: RS-485 host interface
4.9.1

RS-485 Two Wire Connection

Figure 4.12: Setting of the jumpers for RS-485 two wire connections
Bosch Access Systems GmbH
A bus system consists of a bus line and/or one or more branch lines.
Cable lengths exceeding 100 m (300 ft) must be installed as bus lines.
Branch lines are branching connections from a bus line.
Peripheral devices are AMC2 which are connected to the host computer.
Maximum cable length of a bus line must not exceed 1200 m (4000ft).
The cable length of branch lines must not exceed 100m (330ft).
Any bus line conductor connects up to eight AMC2. Do not exceed the maximum number
of devices.
Installation Manual
Installing | en 23
2018-02 | AMC2-4R4 |