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RW Series User Guide
Communications Ports
USB
Signal
Description
Pin# Name Type
1 VBUS USB Bus Power
2 USB - bi-directional I/O signals
3 USB + bi-directional I/O signals
4 USB_ID Identifies A/B connector
5 Return Ground
RS232/USB
Signal
Description
Pin# Name Type
1 USB D- bi-directional I/O signals
2 USB D+ bi-directional I/O signals
3 RXD input Receive Data
4 TXD output Transmit Data
5 DTR output Data Terminal Ready- set high when
printer is on.
6 GND Ground
7 DSR input Data Set Ready- low to high
8 RTS output Request To Send- set high when
printer is ready to accept a
command or data
9 CTS input Clear To Send from host
10 VBUS USB Bus Power
continued