selection port.
11
TXD
UART TXD selection port. Plug in jumper, TXD of
USB UART connect with RXD of the module. The
user can use the serial port for other purposes.
12
RXD
UART RXD selection port. Plug in jumper, RXD of
USB UART connect with TXD of the module. The
user can use the serial port for other purposes.
13
LINK
LINK light selection port. Plug in jumper, then ACK
light connected.
14
AUX
AUX light selection port. Plug in jumper, then ACK
light connected. This function is used to test current.
15
+5VIN
5V external power supply port. If users do not want
to use USB power supply, can connect to external
power supply (+5V and GND)
Do not reverse.
16
LINK light
Network indicator, this light is on when the module is
successfully connected to the network.
Indicator
17
AUX light
Idle indicator, this light is on when the module is idle.
18
ACK light
Status indicator. This light is on when the module
sends data.
19
POWER light
Power indicator, this light is on when the backplane
power on.
Remarks:
There is crystal connection inside E70 module, users can connect external crystal too.(there is external
crystal pad in the module.)
