3
Kamstrup A/S • 5512687_C2_GB_09.2016
GSM6H
1 Installation
Figure 1
1.1 Installation order
1
Make sure the meter is powered off when installing the module.
2
Insert the GSM module into module area 2 (see Figure 1, page 3).
3
Insert the SIM card (see Figure 5, page 12).
4
Connect the external antenna (see chapter 5, page 7).
5
Connect the power supply (see Figure 3, page 11).
6
Perform a signal test when the GSM modem has started up (see chapter 4, page 5).
7
Find the best position for the external antenna.
8
Before leaving the installation, check the signal strength by SMS (see chapter 8, page 9).
Hints
• Always install an external antenna.
• When installing the unit in a metal cabinet, the antenna must be placed outside the cabinet.
• Use dual-band (900 MHz and 1800 MHz) GSM antennas to optimise the performance.
• Note that fire doors, concrete and metal plates disturb and weaken the GSM signal.
• It is possible to order special directional antennas for areas with very poor signal conditions
(please contact Kamstrup A/S for further information).
1.2 Start-up sequence
1
Immediately after start-up, all the Signal indicator diodes and the test diode switch on briefly
(see Figure 5, page 12).
2
The two Signal indicator diodes to the left flash until the module has been initialized correctly
(approx. 5 secs.). When the diode to the left stops flashing, the module has been connected to
the network (approx. 5-10 secs.).
3
Now, the signal indicator will show the current signal level.
4
If the module is configured for communication via GPRS, the GPRS diode switches on as soon
as the module is connected to the GPRS network (approx. 20 secs. after start-up).
5
All diodes will turn off automatically after 10 mins.
