User’s Manual for Node G
Network Elements
Page 36
M0121A2A.doc
4.3.3. Modem
The modem is used to establish a remote connection to the Node G. The connection
may be used to change the unit’s parameters, check and clear alarms or collect
measurement and quality statistics.
Furthermore, the modem is at the Node Gs request to alert the operator when there
is an alarm. The modem may be over-the-air (wireless) or public switched telephone
network (PSTN). It is possible to install the wireless modem or the PSTN modem on
site.
) Note: Check the communication mode between the modem and the
terminal. The following parameters should be set for a GSM modem.
Bit rate / bit per second 9600 Baud
Parity bit No parity
Number of data bit 8 Bit
Stopbit 1 Stopbit
These settings may only be changed locally. Should a different modem be used, the
operator should ensure that the settings are changed prior to leaving the site.
4.3.3.1. Initstrings
The initialization string depends on the operator’s network and the modem. It may be
necessary to adjust the initstring in the field. The initstring for Node G web interface
is factory set.
Modem Network Initstring
GSM 900/1800 AT&FE0S7=60S0=2\Q3+CBST=7,0,1;+IPR=57600
Siemens
MC35
via Node G web
interface
&FE0S7=60S0=2\Q3+CBST=7,0,1;+IPR=57600
table 4-1 Initstrings for a GSM modem
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