Andrew Node C, Руководство пользователя

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5 Functional Description
Page 45
5.2.9. Modems
The modem is used to establish a remote connection to the Node M/C. The
connection may be used to change the parameters of the unit, check and clear
alarms or collect measurement and quality statistics.
Furthermore, the modem is at the Node M/Cs 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.
Modem communication 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.
Wireless modems allows remote control and maintenance of the Node.
Parameters may be changed; alarm and measurement statistics may be
acknowledged and collected in the OMC.
5.2.9.1. Illustrations of Modems
)
Note:
The modems MC55, MC56, MC75
and HC25T are similar to modem
MC35.
)
Note:
The modem Raven C3211 is similar to
modem Redwing.
figure 5-8 Modem MC35 figure 5-9 Redwing modem (CDMA)