What Is the ANT-3-4G2G1-O=?: Cisco’s Multi-Band Outdoor Antenna Features and Use Cases

​​Defining the ANT-3-4G2G1-O=: A Rugged Multi-Carrier Antenna​​

The ​​ANT-3-4G2G1-O=​​ is a ​​wideband outdoor antenna​​ designed to support ​​2G, 3G, and 4G/LTE cellular frequencies​​ for Cisco industrial routers and gateways. Built for harsh environments, it ensures reliable connectivity in remote sites, IoT deployments, and industrial automation systems.

​​Core Technical Specifications​​

• ​​Frequency Bands​​:
  • 2G: 850/900/1800/1900 MHz
  • 3G: 850/900/1900/2100 MHz
  • 4G/LTE: 700–2600 MHz (Bands 1, 2, 3, 5, 7, 8, 20, 28, 38, 40, 41)
• ​​Gain​​: 3 dBi (low-band) to 5 dBi (high-band).
• ​​Polarization​​: Dual slant (±45°) for ​​MIMO compatibility​​.
• ​​Connector​​: N-type female (2x).
• ​​Weatherproofing​​: ​​IP67-rated enclosure​​, operating temperatures from -40°C to 75°C.

​​Compatibility and Supported Devices​​

• ​​Primary Use​​: Cisco ​​IR1100 Industrial Routers​​, ​​IC3000 Industrial Compute Gateways​​.
• ​​Secondary Compatibility​​: Third-party cellular modems with N-type connectors (requires manual configuration).

​​User Concerns Addressed​​

“Will this antenna work with 5G networks?”

No. The ANT-3-4G2G1-O= is optimized for ​​2G/3G/4G/LTE​​ only. For 5G, consider Cisco’s ​​ANT-5G-​​​**​ series.

“Can it withstand extreme weather?”

Yes. Its ​​IP67-rated housing​​ resists dust, moisture, and UV exposure, making it suitable for oil rigs, farms, or transportation hubs.

​​Deployment Scenarios​​

• ​​Smart Grids​​: Connects remote substations and meters in utility networks.
• ​​Fleet Management​​: Provides real-time GPS tracking for vehicles in low-coverage areas.
• ​​Factory Automation​​: Ensures failover cellular connectivity for PLCs and sensors.

​​Installation Best Practices​​

• ​​Mounting​​: Install vertically on poles or rooftops with line-of-sight to cell towers.
• ​​Cable Length​​: Use ​​low-loss coaxial cables​​ (e.g., LMR-400) to minimize signal degradation.
• ​​Grounding​​: Protect against lightning strikes with surge suppressors.

​​Where to Source Authentic Antennas​​

Purchase the ANT-3-4G2G1-O= from itmall.sale to ensure compliance with Cisco’s performance and safety standards. Counterfeit antennas often lack proper shielding or frequency tuning.

​​Limitations to Consider​​

• ​​No 5G Support​​: Limits future-proofing for networks transitioning to 5G.
• ​​Directional Constraints​​: Requires alignment with cellular towers for optimal performance.

​​Practical Insight​​

In a recent mining deployment, the ANT-3-4G2G1-O= proved critical for maintaining LTE connectivity in underground tunnels where Wi-Fi was impractical. While its lack of 5G support might deter some, its multi-carrier flexibility and rugged design remain unmatched for industrial IoT. For teams managing legacy cellular infrastructure, this antenna is a workhorse—just pair it with a high-gain amplifier in ultra-remote areas.