AUD/USD on defensive in Asia as USD index jumps to highest since early July

Undermined by worries over future U.S. trade and monetary policy

Weighed down by falling commodity prices and negative China sentiment

Copper hits 7-week low, Dalian iron ore slumps to 2-week low, gold falls 2%

Weak China inflation and credit data, stimulus measures disappointment weigh

U.S. CPI, Australia wages & jobs, China monthly activity data key this week

Speeches by Fed Chair Powell and RBA Governor Michele Bullock Thu awaited

Support 0.6550, 0.6510-15, resistance 0.6625; Monday range 0.65635-0.65985

Test of key support at 0.6489, 76.4% of Aug-Sep rally, likely in coming days

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