Teleorigin RB900-Pro, Руководство пользователя

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External antennas
The external GSM antenna is connected to the modem via an SMA connector.
The antenna must have parameters listed below in the table.
Antenna frequency range LTE (699-960MHz / 1710-2690MHz)
Impedance
50 Ω
DC impedance
0 Ω
Gain 0 dBi w/o cable; 2dBi w/ cable
VSWR (with cable) -10 dB
The choice of antenna for the modem should best fit the environment it is used in. When
the modem is placed in a room or somewhere where the range of networks signal is too
low, the outdoor or specific indoor antenna should be used to boost it.
Environmental specification
The table below gives the environmental operating conditions of the RB900-Pro
terminal.
Attention!
Exceeding the values may result in permanent damage to the module.
Parameter Conditions Min Max Unit
Ambient Operating
Temperature
-20 60
°C
Storage Temperature -40 85
°C
ESD At antenna connector
Contact
Air
At interface connector
± 6
± 15
± 1
KV
Humidity 5 85 %