ClimaCheck GSM Modem Manual – 2015-02-26 11(22)
5
Router Modems
ClimaCheck work with several router modems and they present signal strength as -dBm
5.1
Signal Strength
The signal strength is indicated by a LED on the front of the modem, as a dBm value on the Home
page of the web interface or as a RSSI value (0-31) in the NETINFO SMS sent from the unit.
Description
RSSI (Sig in SMS)
dBm
Poor or no signal
Signal<10
Signal<-93
Low
10<Signal<15
-93<Signal<-83
Medium
15<Signal<20
-83<Signal<-73
High
20<Signal<25
-73<Signal<-63
Excellent
25<Signal
-63<SIgnal
For reliable data transmission a signal strength above 10 (-93 dBm) is required. SMS commands
can usually be delivered at the lowest signal strength.
6
ER75i Router-modem
The ER75i router-modem is used, together with a switch, in installations with more than one PA Pro
on the same site. The router creates a local area network to witch the PA Pro is connected. This
section explains how to setup the ER75i with one or more PA Pro.
Note! Examples and instructions for the ER75i will be for the v2 version but are also valid
for the v1 version.
6.1
Connecting to the configuration interface
The configuration of the ER75i router-modem is done in its web based interface.
Connect directly to its Ethernet port or via a switch with a network cable.
Open a web browser and enter the units IP-address (default
192.168.1.1
and then
changed to
192.168.33.1
)
Enter the user name and password (default “
root
” and “
root
”).
6.2
Configure GPRS-connection
To enable communication over the ER75i it needs to be configured for the specific SIM-card
supplier that is used.
In the menu to the left choose
GPRS
under
Configuration.
Enter APN, Climacheck supplied SIM-card in example below.
Tick the box for “Check PPP connection”
Enter
online.climacheck.com
in the “Ping IP address” field.
Set “Ping Intervall” to
600
Store settings with the “Apply” button at the bottom of the page. A window will appear
saying “Configuration successfully updated”. Press “Back”.
