Honeywell MPA2 Installation Manual page 31

Access control unit
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Installing the MPA2 Panels
Installation
For additional information concerning the Downstream I/O, See section
.
Downstream Devices (I/O)
3.4.2 RS485 Panel Downstream bus (IN/OUT) J17, J18
The MPA2 panel has a RS-485 downstream bus for connecting
downstream panels (MPA2 or NetAXS123). A maximum of 31 MPA2 and/or
NetAXS123 downstream panels can be connected.
MPA2 Access Control Unit Installation Guide, Document 800-25395 - B
29

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