MR4110/ER4110/HR4110 Installation Guide
7
USB Host Connectors
The USB host connectors may be used to connect compatible USB 2.0 client devices
such as memory sticks, serial adapters, etc. Note that the total current available to power
USB devices is collectively 0.5A (i.e. for both ports).
Status Indicators
The status indicators operate as follows:
ON
Illuminates steady red when power is applied.
LAN
Illuminates steady when there is a network connection to the LAN port
and flashes when data is transmitted or received.
3G/GSM
On the MR4110 and ER4110, this indicator is connected directly to the
GSM module within the router and operates as described in the GSM
Status Indicator Functions table below.
For the HR4110, this indicator indicates the type of network connected as
described in the 3G Status Indicator Functions table below.
NET
Illuminates steady when a wireless network has been detected.
SIM
Illuminates steady when a valid SIM card is installed in the unit.
DAT
Flashes to indicate that data is being transferred over the wireless
network.
SIGNAL
The three indicators labelled SIGNAL illuminate to indicate the GSM
signal strength as follows:
None illuminated
< -113 dBm (effectively no signal)
1 LED illuminated
>= -112 dBm and <= -87 dBm (weak)
2 LED‟s illuminated
>= -86 dBm and <= -71 dBm (medium)
3 LED‟s illuminated
>= -70 dBm and <= -51 dBm (strong)
GPS
Illuminates when the GPS option is fitted and has been successfully
configured by the unit. It will then flash when the GPS module is receiving
positioning information from one or more satellites.
DTE
Illuminates steady if a terminal is connected to the serial port and the
DTR signal is on. Flashes when data is transmitted or received.
