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Installation
B800-00-880 Issue D
Figure 17 - Logic interface connection - mixed parallel and serial operation
Note: The pump controller may be supplied from voltages above 24 V as specified in Table 10, however the
circuitry connected to the normal and fail lines must still respect the maximum external pull up voltage
rating given in Table 10.
1. RS232 interface on control equipment
2. 24 V d.c. electrical supply
3. Fuse
4. Optional LED indicator - system OK
5. Optional LED indicator - normal speed
6. Current limit resistor for LED
7. Optional serial link selector
8. nEXT pump
9. Optional voltmeter
10. Optional serial enable switch
11. Optional standby switch
12. Start switch
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