Assignments of the 25-pin sub-D socket
s
(solder side)
Figure: 25-pin sub-D sockets with relay outputs
Connection
Signal
Socket 1
Socket 2
13
working
contact
25
break
contact
12
changeover
contact
Relay 4
Relay 8
24
working
contact
11
break
contact
23
changeover
contact
Relay 3
Relay 7
10
working
contact
22
break
contact
9
changeover
contact
Relay 2
Relay 6
21
working
contact
8
break
contact
20
changeover
contact
Relay 1
Relay 5
7
Ground
19
Control
input
8
16
6
Control
input
7
15
18
Ground
5
Control
input
6
14
17
Control
input
5
13
4
Ground
16
Control
input
4
12
3
Control
input
3
11
15
Ground
2
Control
input
2
10
14
Control
input
1
9
1
Ground
13
3.3.8
Connections at the Relay Outputs
Each basic unit features eight (2 x 4) 24
VDC
, 1 A relay outputs. They are brought
out at the two 25-pin sub-D sockets Relays 1-4 und Relays 5-8 located on the
GeViScope backplane.
You can connect, for example, external devices for signalling system errors
or event recording via these relay outputs.
The function of the relay outputs is menu-defined in the GSC setup
user environment
