User`s guide

APPENDIX
A-7
USB (Universal Seriel Bus) Interface(HL-1240/1250)
Interface Connector
4 3
21
Fig. A-2 USB interface connector (For HL-1240/1250 Only)
Pin Assignment
Pin No. Signal
1 Vcc (+5V)
2 - Data Serial Data -
3 + Data Serial Data +
4 Ground
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