Apollo ESP6000 User Manual

Page of 104
ECM-3612 
 
52 ECM-3612 User’s Manual 
 
 
2.3.23 
USB Connector (USB1) 
 
 
Signal
PIN PIN 
Signal 
VCC1 
GND 
D1- 3 
4 GND 
D1+ 
D2+ 
GND 7 8  D2- 
GND 
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.