MR4110/ER4110/HR4110 Installation Guide
9
Rear Panel Features
The functions of these connectors are described in the following table:
12V DC
This jack socket is used to connect the unit to the power supply
using 12V DC mains adapter.
GPS
If the GPS option is not fitted, this connector will be replaced with
a “GPS OPTION NOT FITTED” label.
If you have purchased the GPS option the unit will be fitted with
an SMA antenna connector.
SERIAL 0
This 25-way D socket provides an asynchronous RS2322 serial
port which may be used to connect the router to a compatible
serial device. The unit is supplied with a suitable 2 metre serial
cable. To comply with EMC requirements it should not be used
with a longer cable.
GPRS/EDGE
This SMA connector is used to fit the wireless antenna supplied
with the unit. A range of alternative antennas are available for
purchase separately.
LAN
The socket labelled LAN is used to connect the unit to a
10/100Base-T LAN using the 2-metre STP (Shielded Twisted
Pair) cable supplied or a suitable alternative. This port is auto-
sensing for speed and wiring (straight-through or cross-over). To
comply with EMC requirements it should not be used with non-
STP cable.
EXP.
The socket labelled EXP. may be used to connect various
accessories supplied by Digi International. For further information
please contact your supplier.
Reset switch
This is located on the underside of the unit near the front. Pressing the switch gently with
the tip of a pen or other suitable implement will generate a hardware reset.
