Installing The 3G Cdma Nim Antennas; Figure 20. 3G Cdma Nim Rear Panel; Table 3. Primary Antenna Specifications - ADTRAN Vanta 1335 Hardware Installation Manual

Unit Installation

Installing the 3G CDMA NIM Antennas

The optional 3G CDMA NIM is installed into the rear panel of the base unit following the instructions in
Installing Dial Backup and Network Interface Modules on page
detachable dual-band dipole antennas (one primary antenna and one diversity antenna). These must be
installed before attempting to connect to a cellular network.
3G 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.
specifications of the primary antenna (transmit and receive).
antenna (receive only). Table 5
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.
Description
Peak Antenna Gain
Average Gain
Efficiency
Polarization
(Ratio Gv: Gh)
Input VSWR
Average Power Handling
44
ANT1
WWAN
1xRTT
SMA Antenna
Connectors

Figure 20. 3G CDMA NIM Rear Panel

describes the antenna-to-antenna requirements.

Table 3. Primary Antenna Specifications

Minimum
1.0
-3.0
-4.0 (40)
0.0
2.0
Copyright © 2011 ADTRAN, Inc.
NetVanta 1335 Series Hardware Installation Guide
42. The 3G NIM ships with two
Figure 20 shows the antenna connectors on the
ANT2
RSSI
EVDO
3G NIM (CDMA)
Table 4 describes the specifications of the diversity
Maximum
2.5:1
Table 3 describes the
Unit
dBi
dBi
dB (%)
dB
watts
61700515E2-34C