Operating Instructions

Table Of Contents
Chapter 1Introduction
APOGEE Automation Networking
23 |
118
Siemens Industry, Inc.
Owner's Manual
553-104
Building Technologies
2018-10-01
Media
The RS-485 ALN can communicate over one or more of the following:
Physical wire (RS-485 cabling)
Dedicated telephone lines
Leased-line modems
Line drivers
Trunk Isolator Extenders (TIE)
Fiber Optic Interfaces
The trunk system provides connections within buildings or between buildings for
multiple field panels and operator workstations.
The following figure shows a possible implementation of an RS-485 ALN network.
Figure 2: MLN, RS-485 ALN, and P1 FLN network example.