CITIZEN CL-S521 - Manual (Page 52)

Appendixes
52
USB Interface
Specifications
Standards Complies with Universal Serial Bus Specification
Transmission speed Compatible with 12Mbps (full speed) transmission
Receive buffer 16kB
Connector DUSB DUSB-BRA42-T11(DDK)
Pin No. Signal code Signal Function
1 VBUS USB power USB power (+5V)
2 D+ Signal line + + signal line
3 D– Signal line – – signal line
4 GND GND GND
Signal line and pin arrangement
Interfaces