tams elektronik GBM-1 Manual page 21

tams elektronik
Notes on the connection example

The connection to direct current systems is shown. The connection to AC systems is
analogous to the connection diagram in section 4.2.

In order to increase clarity, only the connection of the relay board for section 1 of the track
occupancy detector number 1 is shown in full (designated as "1.1" in the connection
diagram). The connection of the relay boards for the other track sections is done
accordingly.

The number of sections in the block section can be extended as desired with further track
occupancy detectors and relays.

The relay board RL-2 is equipped with a relay 2xUm, so it has two change-over switches.
Only one of these can be used to switch a track section (COM1 and pin 3 or 4 or COM2 and
pin 1 or 2). The free change-over switch can be used, for example, to connect a light signal
that is switched at the same time as the track section.
Pin assignment
Due to the large number of connections required, the connection of the block section quickly
becomes confusing. It is therefore recommended to create a table with the required
connections and to execute the connections based on this table.
Connection table for the connection example shown:
COM 1 or
Relay
COM 2
Board
no. → Input GBM*
1.1 E1.1
1.2 E1.2
1.3 E1.3
1.4 E1.4
2.1 E2.1
2.2 E2.2
2.3 E2.3
... ...
*The numbers of the inputs and outputs result as follows:
Number of the track occupancy detector + number of the input/output according to the
connection diagram of the GBM.
Example: 2.3 = track occupancy detector no. 2 / input or output 3
PIN 3 or 4 or
S1 ("off")
PIN 1 or 2
→ Track section → Output GBM*
1.1 A1.2
1.2 A1.3
1.3 A1.4
1.4 A2.1
2.1 A2.2
2.2 A2.3
2.3 A2.4
... ...
S2 ("on")
→ Output GBM*
A1.3
A1.4
A2.1
A2.2
A2.3
A2.4
A3.1
...
Connecting subordinate circuits| 21
GBM-1