Installation and user manual
UNICOM 300 N531
DDN5006GHEN/04-2021/rev.B1
17
6 Activation of the modem, TCP and NTP services
6.1 Activation of the modem
The modem can be turned on by pressing switch SW1 for at least 4 seconds until the NETWORK status
LED starts flashing, SW1 can then be released.
If switch SW1 is operated again, the modem will log in again, turning the modem off and on again. This
is apparent as the NETWORK status LED (see Chapter 5) is off for a short time.
6.2 Activation of TCP services
If the TCP server function is activated in UNICOM 300, the device will log on to GPRS/LTE cat. 1 when
the modem is switched on.
Before the TCP server is activated an IP-address will be assigned to UNICOM 300. If logging on to
GPRS/LTE cat. 1, or activating the TCP server fails, this will be repeated up to four times. If after four
attempts the registration is not successful, UNICOM 300 will be registered on the GSM network,
(NETWORK status LED will flash) but not on the GPRS/LTE cat. 1 network. The user may optionally
initiate a re-login by means of switch SW1.
6.3 Activation of NTP
UNICOM 300 is equipped with a function to read out the NTP-time server. When connected to this time
server, the date and time are read out. If NTP is activated and UNICOM 300 has been synchronized with
the NTP server in the last 24 hours, then UNICOM MODEM's clock is no longer synchronized by
monitoring data traffic.
To activate NTP functionality, the NTP time server must be set via C92.65 and C.92.66. In addition, the
APN data must also be set.
The requested NTP time is the GMT time. Through time zone setting (C.92.64) and with DST
(summer/winter time) the time is adjusted in UNICOM 300.
When the NTP function is activated, the clock is requested once a day at approximately 00:35.
If reading out the NTP time server does not succeed, another attempt will be made after 12 hours.
6.4 Activation of FTP
To use the FTP functionality, the FTP server data must be set (FTP server, FTP user name, FTP
password, FTP port). Also the APN data and the FTP interval have to be set.
If the FTP functionality of the UNICOM 300 is activated, the UNICOM 300 will send the load profile after
activating the datalogger. See chapter 8 for activation of the data log functions. If UNICOM 300 is placed
as modem at UNIGAS 300 and CI module, UNICOM 300 will forward the FTP message from UNIGAS
300.
UNICOM 300 checks if the FTP message arrived correctly on the server. At first installation or at not
correctly sending the FTP message, UNICOM 300 or UNIGAS 300 will, when sending the (next) FTP
message, send the data of the failed message. The data is depending on the set load profile (0.8.5) limited
as follows:
Setting 0.8.5:
5 minutes = 10 days
10 minutes = 10 days
15 minutes = 31 days
30 minutes = 31 days
60 minutes = 61 days
1 day = 61 days
