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•• Connecting Procedure
Described below is the method of connecting NT20S and host with RS-232C.
< Connector Pin Arrangement of NT20S >
The connector has the following specifications.
• Electrical characteristics: Conform with EIA RS-232C.
• Connection signals : Signal direction is as seen from the host side.
Signal Direction
Input Output
1 Protective ground or ground FG (Note 1) — —
2 Transmitted data SD (TXD) O
3 Received data RD (RXD) O
4 Request to send RS (RTS) O
5 Clear to send CS (CTS) O
9 Signal ground SG (GND) — —
NOTES: 1. FG is not connected inside NT.
2. The pin without entry is not used.
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6
5
9
Connector
Pin No.
Signal Name Symbol
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