Universal Serial Bus (USB) Interface
Universal Serial Bus (USB) Interface

Universal Serial Bus (USB) Interface

This section explains the USB connector wiring for the USB A and B styles used by the printer.
When using third-party cables, the printer requires USB cables or the cable packaging that bears the Certified USB mark to guarantee USB 2.0 compliance.
USB - A
Shows wiring and circuit considerations for the USB-A interface connections.
Wiring - USB Connector A Style for connecting to the printer or device
Pin 1 — Vbus (+5VDC). 
Pin 2 — D- (Data Signal, Negative Side)
Pin 3 — D+ (Data Signal, Positive Side)
Pin 4 — Shell (Shield/Drain Wire)
USB -B
Shows wiring and circuit considerations for the USB-B interface connections.
Wiring - USB Connector B Style for connecting to the printer or device
Pin 1 — Vbus (Not Connected)
Pin 2 — D- (Data Signal, Negative Side)
Pin 3 — D+ (Data Signal, Positive Side)
Pin 4 — Shell (Shield/Drain Wire) Shell
USB Host +5 VDC power source is shared with serial port phantom power. It is limited to 0.5mA per USB Specification and with onboard current limiting. The maximum current available through the serial port and USB port will not exceed a total of 0.75 Amps.