Unit Installation
NetVanta 3000 Series Hardware Installation Guide
90
Copyright © 2010 ADTRAN, Inc.
61200860L1-34AA
Installing the 3G CDMA NIM Antennas
The optional 3G CDMA NIM is installed into the rear panel of the base unit following the instructions on
page 87. The 3G NIM ships with two detachable dual-band dipole antennas (one primary antenna and one
diversity antenna). These must be installed before attempting to connect to a cellular network.
Figure 48
shows the antenna connectors on the 3G NIM rear panel.
Figure 48. 3G CDMA NIM Rear Panel
Notification for Devices with Detachable Antennas
The 3G CDMA NIM has been designed to operate in the 800/1900 frequency CDMA bands with the
dual-band dipole antennas shipped with the card. Antennas that do not match the following antenna
specifications are strictly prohibited for use with this device. The required antenna impedance is 50 ohms.
Table 3
describes the specifications of the primary antenna (transmit and receive).
Table 4 on page 91
describes the specifications of the diversity antenna (receive only).
Table 5 on page 91
describes the
antenna-to-antenna requirements.
To reduce potential radio interference to other users, the antenna type and its gain should
be chosen so that the equivalent isotropically radiated power (e.i.r.p.) is not more than that
permitted for successful communication.
Table 3. Primary Antenna Specifications
Description
Minimum
Maximum
Unit
Peak Antenna Gain
1.0
dBi
Average Gain
-3.0
dBi
Efficiency
-4.0 (40)
dB (%)
Polarization (Ratio Gv: Gh)
0.0
dB
Input VSWR
2.5:1
Average Power Handling
2.0
watts
ANT1
ANT2
3G NIM (CDMA)
WWAN
RSSI
1xRTT
EVDO
SMA Antenna
Connectors