W Hen Using A Rs-232C Connection Cable - Pro-face GP-2500 Series Replacement Manualbook

4.5.1 When using a RS-232C connection cable,
GP2000 series System Configuration (connecting to COM1)
System Configuration (connecting to COM1) after replaced with GP4000 series
To replace GP2000 series with GP4000 series, prepare the following item.
Product Name Model
RS-232C 9pin-25pin Conversion Cable (20cm) CA3-CBLCBT232-01
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