Page 6Manual SVL 4G Weblogger
Adesys B.V. | Wateringen
The use of a ‘Prepaid’ SIM card for dialling purposes is strongly discouraged. The mobile network cannot
automatically request the call credit, which means that this can be run down without anyone noticing,
resultinginoutgoingnoticationscomingtoastandstill.
2.4 Antenna
Connect the antenna cable to the SVL’s antenna connection. The antenna plus associated cable can be
obtainedfromAdésys.Theantennashouldbeaxedtoashighapointaspossibletoobtainthebest
possible range.
Afterinstallation,alwayschecktheeldstrengthoftheantennasignal(max.is5ashesoftheyellow
‘network’LED).Noticationofchangesinsignalstrengthwillalwaystakeplaceafteralongdelay(±30
seconds).Takethisintoaccountif,forexample,theantennaismoved.
2.5 Power supply
2.5.1 SV-20mainsadapter
A 230Vac/12Vdc mains adapter with item number SV-20 can be obtained as an option to supply power to
the SVL.
Whenttingtheterminalblocktothepowersupplycable,ensurethatthepolarityplus(+)andminus(-)is
correct.
Anextrapowersupplyfuseisnotnecessaryhere.
If the SVL is not supplied with power using the above-mentioned mains adapter, the connection
regulations in the section below apply.
2.5.2 Power supply
ConnecttheSVLtoaDCpowersupplyof12to46Vdc(atleast8.5W)oratransformerof20to35Vac.The
powersupplyinputoftheSVLisnotgalvanicallyisolatedfromtheotherconnections.TheGNDconnection
ofthepowersupplyconnectorisdirectlyconnectedinternallytotheGNDconnectionoftheinput
connector and the COM port.
If the SVL is connected to an application (process controller, PLC, computer, active sensor, etc.) without
galvanic isolation and the SVL is connected to the same power supply, there is a real chance of earth loops
and/or short circuits in this power supply.
2.6 Reset key
Theresetkeyhasthreefunctions:rstofall,itisusedtointerruptthealarm.Pressingthisbrieyendsthe
currentnotication;theSMSmessagesthathavenotyetbeensentarenotsent.
A second function of the reset key is to restart the dialer. The dialer can be restarted by holding this key
down for a period of 8 seconds. This only occurs if a power supply is connected.
Ifnopowersupplyisconnected,theresetkeyfunctionsasanobutton.Holdingthekeydownfora
periodof8secondsswitchesothedialer.
Statuses of inputs will not be stored in a permanent memory. If the supply voltage fails, and the built-in
supercap is entirely discharged, the contents of this memory is lost. If the SVL is restarted manually, this
status will also be reset. When the supply voltage is restored, the SVL behaves as if it is being started up
forthersttime.Thismeansthat:
• After the supply voltage has been restored, only active inputs are reported once again;
• No recovery message will be sent if the status of the input has been recovered during this power failure.
The fourth functionality is for when there is something wrong and there seem to be no connection. By
pushingtheresetkeyforadurationof3seconds,releasingit3secondsanddoingthis3timestheDHCP
willbeenabled.ByenablingtheDHCPitispossibletomakechangeswithSV-prog.
2.7 Ethernet
TheEthernetconnectioncanbeusedforanexternalconnection.ThisissetupintheSVL:seetheSV-prog
section. By default this is set up to connect to Checkmyproces.com.
2.8 2G/4G connection
To use the SVL with a 2G/4G connection, a SIM card with Internet subscription should be installed in the
SVL. It is important that the correct APN, APN user and APN password are entered, otherwise the SVL will
