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903-0623-00 Rev. A
Figure 5.4-4 below shows a block diagram of the CIB-10 board.
FRONT PANEL
Ch1 - 10 SWITCHABLE
TYPE1 OR TYPE 2
TOR INPUTS
Ch1 - 10
TOR OUTPUTS
Two pins are provided for shield connections: TOR In Shield = pin 41; TOR Out Shield = pin 42. Both of
these pins may each be shorted directly to chassis ground or ISOGND3, which is the common ground for
Type 2 inputs. The default configuration is with all shield switches open, as shown in Figure 5.4-5.
J1C
31
+OUT6
32
-OUT6
33
+OUT7
34
-OUT7
35
+OUT8
36
-OUT8
37
+OUT9
38
-OUT9
39
+OUT10
40
-OUT10
41
42
TOR OUT SHIELD
43
44
748482-5
Pin designations for the front panel 44-pin connector are given in Appendix A.
Focal Technologies Corp.
ISOLATION
BARRIER
ISOLATED
POWER3
OPTOCOUPLERS
10 DIGITAL
WITH INPUT
INPUTS
PROTECTION
PHOTOMOS
10 DIGITAL
RELAYS
OUTPUTS
Figure 5.4-4: CIB-10 Block Diagram
TOR IN SHIELD
SW22A
1
4
GDH02S
SW22B
2
3
GDH02S
ISOGND3
Figure 5.4-5: CIB-10 Shield Options
Model 903 User's Guide, FMB-X-2.5 Version
CIB-10
TOR INPUTS
TOR OUTPUTS
MICROCONTROLLER
BACKPLANE
BUFFERS
+5V
EMI & FUSE
PROTECTION
-12V
SW21A
1
4
GDH02S
SW21B
2
3
GDH02S
ISOGND3
Page 5-15
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