34 en | Installing
AMC2 Modular
Controller
2018-09 | AMC2-4W_UL | Bosch Access Systems GmbH
4.9 RS-485 for extension modules
The RS-485 Extension Module Bus expands the AMC2-4W with
additional Wiegand interface and/or I/O modules AMC2-4WE
(AMC2-8IOE, AMC2-16IE, AMC2-16IOE
Figureî4.8: Location of the RS-485 extension module bus
Up to three expansion modules can be connected to provide
additional in- and outputs, for example, for elevator control.
You can find further information about the extension boards in
their installation manuals.
A complete connection diagram of the RS-485 extension module
bus is shown in Connecting Diagrams, page 63.
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