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Technology subrack
7-6
Hardware - SIMADYN D
Edition 03.2001
•
TTL (0V ... 5V)
The setting is made using the DIL switches S2/1 - S2/8
ON
2 3 4 5 6 7 8
1
Fig. 7-2 Switch S2
Track signals A and B are set according to the following table:
Significance Switch
S2
Setting
Significance Switch
S2
Setting
TTL RS422
1
ON
TTL (0V ... 5V) 1
ON
2 ON
2
ON
3 ON
3
OFF
HTL± (±3V)
1
OFF
HTL (3V ... 8V) 1
OFF
2 OFF
2 OFF
3 OFF
3 OFF
The zero impulse can be switched indepenent from Track A or B:
TTL RS422
4
ON
TTL (0V ... 5V) 4
ON
5 ON
5
OFF
HTL± (±3V)
4
OFF
HTL (3V ...8V)
1
OFF
5 ON
2
OFF
For differential signals, bus terminating resistors can be switched-in via
switch S2/6 - 8:
Significance Switch
S2
Track A
6
Track B
7
Zero pulse
8
The terminating resistors are switched-out in the OFF setting; they are
switched-in in the ON setting.
The switches can only be changed when the module has been withdrawn.
The switches are not accessible when the module is inserted.
Aotewell Ltd
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Industry Automation
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