Figure 8. Rs-485 Terminals - Mircom TX3 Series Installation And Operation Manual

2.2.5 RS-485
An RS-485 terminal lets you connect multiple card access controllers across a
network. The RS-485 terminal consists of + (positive), - (negative), and
S (Shield) connections. See Figure 8.
Note:
2.2.6 USB Port
The USB port provides a connection to a PC, for configuring the card access
system and down loading any new firmware.
2.3 Connecting the Inputs
Each card access controller has eight inputs to accommodate the different types
of configurable functions associated with the inputs. For additional details and
a complete description of the different types of configurable functions see
Chapter 3 Configurable Features.
After the installation and setup is complete, the functional state of all inputs and
circuit supervision types must be configured using the configurator software.
During configuration you will also establish correlations between inputs and
outputs.
Depending on the device each input is configured according to:
•
•
•
Version 1.00.3 TX3-CX Card Access System Installation and Operation Manual
Copyright 2009
Connect the last controller on the network to the RS-485 input
terminal and close jumper JW5. On all the other controllers leave
JW5 open.
type of input function
active state
supervision requirement
INPUT OUTPUT
- S +
- S +

Figure 8. RS-485 Terminals

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