theory 200, 500, 500E and 600 serie...

theory 200, 500, 500E and 600 series bill validators (essentially each SC Series unit manufactured since 1988) from Standard Change-Makers Inc. can be easily modified to accept the soon-to-be-introduced $20 bill with a simple software upgrade, the company says.
The U Department of Treasury commonly expects to start circulating the redesigned $20 bills in October 2003 For the Standard Change-Makers SC machines, the publicity upgrade will require only a memory chip replacement in the circuit board and a certain quantity of simple programming steps, the company explains.
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