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[Previous] [Up] [Top] [Contents] [Back]Chapter 4 Theory of Operation
The board is divided into four channels, each consisting of eight outputs. Each individual output consist of:
| a D-type register with read-back (U41-U44,
U37-U40) |
| a high-current output driver (U33-U36) |
| a relay with a fly-back diode (U1-U32,
D1-D32) and |
| a metal oxide varistor transient suppressor
(V1-V32). |
Figure 4-1 Output Network
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