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ECM-3612
52 ECM-3612 User’s Manual
2.3.23 USB Connector (USB1)
Signal PIN PIN Signal
VCC1 1 2 GND
D1- 3 4 GND
D1+ 5 6 D2+
GND 7 8 D2-
GND 9 10 VCC2
2.3.23.1 Signal Description – USB Connector (USB1)
Signal Signal Description
D1+ / D1-
Differential bi-directional data signal for USB channel 0. Clock is transmitted
along with the data using NRZI encoding. The signalling bit rate is up to 12 Mbs.
D2+ / D2-
Differential bi-directional data signal for USB channel 1. Clock is transmitted
along with the data using NRZI encoding. The signalling bit rate is up to 12 Mbs.
VCC 5 V DC supply for external devices. Maximum load according to USB standard.