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