Oki POS 425S - Manual (Page 63)

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Developer’s Guide: English 63
5.3.4 Customer Display connector (OKI Standard RS-232C Interface Type)
1 Customer Display Connector Signals
A25015.doc
Pin No. Signal Name Direction Function
1 FG - Frame ground
2 NC - Not Connected
3 TD To Customer Display Data to Customer Display
4 DTR To Customer Display +12VDC Power supply
5 DSR From Customer Display Indicates that data can be sent
6 EL - Signal ground
7 +24V To Customer Display +24VDC power supply
8 EP - Power ground
Note Pin arrangement
OP425_08.eps
1 2 3 4 5 6 7 8