B‐FV700‐BLTH‐QM‐R
‐46‐
6.6.3 RS‐232C
TheRS‐232ContheprinterisDB9female.Ittransmitsdatabitbybitinasynchronousstart‐stopmode.
Thefigurebelowshowsitspinout.
1
2
3
4
5
6
7
89
Pin Signal Description
1 N/A ShortedtoPin6
2 RxD Receive
3 TxD Transmit
4 N/A NoConnection
5 GND Ground
6 N/A ShortedtoPin1
7 RTS Re questtoSend
8 CTS CleartoSend
9 +5V ReservedforKDU(keyboarddeviceunit)
NotePin9isreservedforKDU.Donotconnectitifyouareusinga
computerasthehost.
Host(DB9) Printer(DB9)
Signal Description PinPin Description Signal
RxD Receive 2 3 Transmit TxD
TxD Transmit 3 2 Receive RxD
DTR DataTerminal Ready 4 1 DataSetReady DSR
GND Ground 5 5 Ground GND
DSR DataSetReady 6 6 DataTerminalReady DTR
RTS RequesttoSend 7 8 CleartoSend CTS
CTS CleartoSend 8
7 RequesttoSend RTS
6.6.4 Centronics
The 36‐pin Centronics on the printer uses parallel communication, and complies with IEEE 1284
compatibilitymode(alsocalledSPP,StandardParallelPort).Thefigurebelowshowsitspinout.
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