The following conditions apply for an RS-485 bus system:
– 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.
To use RS-485 mode at the AMC2-4W , connect the data cables
to the pluggable screw connector of the RS-485 host interface.
The setting of the AMC2-4W must correspond with the settings
of the RS-232 / RS-485 converter.
Figure 4.10: RS-485 host interface
32
en | Installing
Access Modular
Controller
2016-11 | AMC2-4W | Bosch Sicherheitssysteme
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