Inputs And Outputs; Block Diagram; Binary Inputs - Siemens SWT 3000 Equipment Manual

12.2

Inputs and Outputs

Block Diagram

12.2.1
[dwblcalr-051011-01.tif, 1, en_US]
Figure 12-1

Binary Inputs

12.2.2
The module ALR provides 2 electrically isolated inputs BI1 and BI2 with selectable input voltage levels. As the
circuits for the binary inputs comprise rectification, differential DC input signals of either polarity can be
connected. The output signals of the circuits have TTL level. Binary input BI1 is alternatively configurable as an
input for entering IRIG-B signals.
NOTE
i
i
Binary input BI2 is for future use.
Smart Communication, SWT 3000 Teleprotection, Equipment Manual
C53000-G6040-C605-1, Edition 03.2020
Block Diagram of the ALR Module
Alarm Module
12.2 Inputs and Outputs
355