Beckmann Egle MT 20x2 Handbuch - Seite 7

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MT 20x2/40x2

Connectors

The position of each connector can be found on the relevant layout diagram. Make shure to
turn off the device if making changes in wirement. Remember the mode to count the pins on
the different connectors.
KL1
Power supply
Pin
1
2
Connector for Matrix Keyboard
CN3
Line Allocation
CN4
Connector for Fixed Text / Address Selection
Pin FT-Mode
1
2
3
4
5
6
7
8
9
Example: Connection for fixed text query via CN4
FT0
FT1
FT2
FT3
FT4
FT5
FT6
(nc)
GND
Copyright BECKMANN+EGLE GmbH, all rights reserved.
Assignment
GND
+UB
J1 open :
Using a voltage stabilizer
J1 closed :
5V stabilized
Pin No CN3 Column Allocation
Column 0->
2
Column 1->
4
Column 2->
6
Column 3->
8
Column 4->
10
Column 5->
12
Column 6->
14
Column 7->
16
Description
J9=1
FT0
Number of fixed text for
FT1
output (0 .... 127 binary
encoded)
FT2
B..: for FixedText 1, FT1-
FT3
FT6 must be set to '0' and
FT4
FT0 to '1' or open.
FT5
FT6
n.c.
(not assigned)
GND
CN4
1
9
1
3
5
7
9
<-
Line0
11
<-
Line1
13
<-
Line2
15
<-
Line3
Bus Mode
J9=0
Adr0
Adr1
Adr2
Adr3
Switch
1 x
0 x
0 x
1 x
0 x
0 x
0 x
=> FixedText or Address 9
selected
Page 7
Description
Binary address
encoding,
Address. 0....15
1
2
4
8
16
32
64
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