PDS_6xxx_010
71M6xxx Data Sheet
Signal traces
Isolation gap
Transformers
Figure 5: Copper Separation and Signal Traces for a Polyphase PCB
3.5
Compatibility with the 71M654x
The 71M6xxx isolated sensor ICs are designed to be operated in conjunction with the 71M654x energy-
metering ICs. Operation of the 71M6xxx isolated sensor ICs requires a 71M654x IC with CE code
capable of interfacing with the 71M6xxx. CE codes written for operation with CTs do not work with the
71M6xxx.
The 71M6xxx isolated sensor ICs are not arbitrarily interchangeable. Each type of the 71M6xxx must be
matched with its corresponding CE code in the 71M654x per Table 14. A 71M6xxx remote sensor IC
generates unpredictable results when paired with a CE code for a different part number. All 71M6xxx
isolated sensor ICs used in a polyphase system must be of the same part number.
v1.2
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