About the Digi Connect ME family of embedded modules Connectors: antenna
Digi Connect ME, Wi-ME, ME 9210, Wi-ME 9210 Hardware Reference Manual
16
Hard reset
The embedded modules support a hardware reset on pin 14 of the 20-pin header. Pulling pin 14 low
with an open drain driver will force the module into a hard reset state. The module will remain in the
reset state as long and pin 14 is held low and will leave this reset state ~250mS after pin 14 goes high.
Do not actively drive pin 14 high and do not allow the rise time of the pin 14 to be longer than 100uS.
When used with the development board, this pin is wired to reset button SW4, which means it acts as
a hard reset button.
Connectors: antenna
The Digi Connect Wi-ME is available with 1 RP-SMA connector. The antenna is connected to the module
with a reverse polarity SMA connector (sub-miniature size A). The antenna only fits on the module one
way to ensure a proper connection. Another option for both signal reception and design flexibility is to
use an antenna extension cord to separate the antenna from the module. This allows the module to fit
inside your product but the antenna to be placed outside the device.
CAUTION! This Part 15 radio device operates on a non-interference basis with other
devices operating at this frequency when using the antennae listed in the Antenna
Specification table. Any changes or modification to the product not expressly approved
by Digi International could void the user’s authority to operate the device.
Antenna Specifications
Type Desktop Dipole 30 cm
Antenna Extension Cord
Part number DC-ANT-24DT DG-ANT-20DP-BG DG-EXT-300-RR
Gain 1.8 dBi -.5dB
Module LEDs
The module has two LEDs that are located near the upper corners of the Ethernet port (see the
following figure). The following table describes the LEDs.
The LEDs are the same for a module with or without a JTAG connector.
To Next Page
Loading...
Need help?
General
