Bosch AMC2 Manual page 2

2 | AMC2 - Input/Output Extension Boards
3 = Card reader
4 = Communication and power supply
5 = AMC2 xxx-EXT
In the default configuration, the connection to the
AMC2 is established via the RS485 interface.
Installation/configuration notes
Up to three extension boards can be connected to one
AMC2 controller; this provides a maximum of 56 input
and output signals for configuration with the AMC2
signals.
For a system configuration the AMC2 16I-16O-EXT,
AMC2 16I-EXT, and AMC2 8I-8O-EXT can also be used
in combination, e.g. two AMC2 16I-16O-EXTs and one
AMC2 8I-8O-EXT – but the maximum number of
modules that can be connected is also restricted to
three per AMC2 controller.
Notice
Systems with Access Personal Edition Software
can only connect one I/O-Extension to an AMC2
Controller.
An AMC2 16I-16O-EXT can only provide signals for the
entrances of the AMC2 controller to which it is
connected. It is not possible to transmit to another
AMC2.
Configuration examples:
Solid lines: Power supply
Dotted lines: Data lines
1. AMC2 with power supply.
2. Power and data are supplied to the AMC2 xxx-EXT via
the AMC2.
3. The AMC2 xxx-EXT with its own power supply
receives data from the AMC2.
4. The first AMC2 xxx-EXT is supplied by the AMC2 - the
second has its own power supply and a connection to
the third. All AMC2 xxx-EXTs receive their data from
the AMC2.
Power supply
An external power supply (10 to 30 V DC) for the
AMC2 is connected to the first (positive) and third pin
(negative).
When using an uninterruptible power supply (UPS),
the relevant UPS output relay is connected to the pins
• 4 and 7 for alternating current (AC)
• 5 and 7 for the battery
• 6 and 7 for direct current (DC)
Otherwise, these pins will short-circuit.
Voltage equalization - grounding
• Different grounds can be balanced via jumpers with
protective ground.
• A line (shielding, potential equalization) with
protective ground must only be connected in one
place.
• For further instructions, please see the operating
manual.