2023-03
12
H-System – Isolated Barriers and Termination Boards
Product Specifications
2.3 Termination Boards
Termination boards form the wiring level for field and control signals. The isolated barriers
are mounted on termination boards. The isolated barriers are connected with the field
and control side via the termination boards. Once the isolated barrier is mounted,
the signal circuit between the field and control side is closed.
Figure 2.6 Connection example termination board with 8 slots
Features depending on version
• With 8, 16, or 32 slots
• For redundant and fused power supply
• For fault monitoring and diagnostics
1 Field side connection
2 Connection power supply and fault indication output
3 Control side connection
4 Connection HART communication (if available)
X20
Zone 0, 1, 2
Div. 1, 2
mA
1 2
4
3
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