DS-C9124V-8EK9: How Does This Cisco Switch Ad
Core Specifications and Design Philosophy of the ...
Introduction to the P-LTEA-EA=: Purpose in Modern Enterprise Connectivity
The Cisco P-LTEA-EA= is an LTE Advanced (LTE-A) cellular interface module designed for Cisco Industrial Routers (IR) and Enterprise Access Points (AP), enabling secure, high-speed wireless connectivity for mission-critical applications. Part of Cisco’s IoT and edge networking portfolio, this module supports 4×4 MIMO (Multiple Input Multiple Output) and Carrier Aggregation (CA), delivering peak throughputs of 300 Mbps downlink and 50 Mbps uplink. Unlike consumer-grade LTE modems, the P-LTEA-EA= is engineered for industrial environments, with extended temperature tolerance (-40°C to +75°C) and compliance with global certifications like AT&T FirstNet, Verizon LTE, and EU RED Directive.
Cisco’s documentation positions this module as a primary or failover WAN link for enterprises requiring uninterrupted connectivity in remote locations (oil rigs, mining sites) or mobile deployments (emergency response vehicles, rail systems).
Technical Specifications and Radio Frequency Capabilities
Radio Parameters
- Frequency Bands: Supports 700 MHz (Band 14/28), 800 MHz (Band 20), 1800 MHz (Band 3), 2600 MHz (Band 7)
- Modulation: 256-QAM (Downlink), 64-QAM (Uplink)
- MIMO Configuration: 4×4 (DL), 2×2 (UL)
- Antenna Ports: 2x TS-9 connectors for external antennas
Performance Metrics
- Peak Throughput: 300 Mbps DL / 50 Mbps UL
- Latency: <50ms (LTE Cat 6)
- SIM Support: Dual SIM (Mini-SIM and MFF2 embedded SIM)
Security and Compliance
- FIPS 140-2 Level 1: Hardware-based encryption for IPsec VPNs
- EN 62368-1: Safety compliance for IT/AV equipment
- GR-3108-CORE: NEBS Level 3 for central office deployments
Key Deployment Scenarios and Use Cases
Scenario 1: Smart Grid Telemetry Backhaul
A North American utility provider deployed the P-LTEA-EA= on Cisco IR1101 routers to transmit SCADA data from substations to a centralized grid management system. The module’s Band 14 support ensured priority access to FirstNet’s dedicated LTE spectrum during emergencies, reducing outage resolution times by 35%.
Scenario 2: Mobile Command Centers
A European fire department integrated the module into Cisco Catalyst IW9167 access points installed in emergency vehicles. Band 28 (700 MHz APAC) provided extended coverage in rural wildfire zones, enabling real-time video feeds from drones to incident commanders.
Scenario 3: Retail Branch Connectivity
A retail chain used the P-LTEA-EA= as a backup WAN link for POS systems across 200 stores. During fiber cuts, the module’s dual-SIM failover automatically switched between Verizon and AT&T networks, preventing $1.2M in potential lost sales.
Compatibility and Integration Requirements
Supported Cisco Platforms
- Industrial Routers: IR1101, IR1800 Series (requires IOS-XE 17.9+)
- Enterprise APs: Catalyst IW9167, IW6300 Heavy Duty (with Mobility Express 8.10+)
- Edge Compute: Cisco IC3000 (via USB passthrough)
Critical Limitations:
- Incompatible with Cisco Catalyst 9000 switches due to lack of USB/LTE module slots.
- Requires Cisco DNA Essentials licensing for centralized policy management.
Troubleshooting Common Connectivity Issues
Issue 1: Intermittent Signal Drops
This often stems from antenna polarization mismatches or cable loss exceeding 3 dB. Use external antennas with 5dBi gain and verify MIMO antenna spacing (≥λ/2 wavelength).
Issue 2: SIM Authentication Failures
Reset the module’s eSIM profile via CLI:
cellular lte profile delete 1
cellular lte profile create 1 Check carrier APN settings and ensure PIN lock is disabled.
Comparative Advantages Over Competing LTE Modules
| Feature | P-LTEA-EA= | Generic LTE Cat 6 Module |
|---|---|---|
| Frequency Bands | 14 global bands | 4–6 regional bands |
| MIMO Support | 4×4 DL / 2×2 UL | 2×2 DL / 1×1 UL |
| Temperature Range | -40°C to +75°C | -20°C to +55°C |
| Carrier Certification | AT&T FirstNet, Verizon | Limited to consumer networks |
The P-LTEA-EA= excels in public safety and industrial IoT, offering carrier-specific optimizations absent in third-party modules.
Purchasing and Licensing Considerations
The module requires a Cisco Mobility Advantage License for advanced features like traffic shaping and VPN prioritization. Resellers like itmall.sale offer refurbished units at 30–40% below retail, often preloaded with carrier-specific firmware for immediate deployment.
Anti-Counterfeit Checklist:
- Verify the Cisco Trusted Part Number (CTPN) sticker (P-LTEA-EA=).
- Ensure the module’s IMEI is not blacklisted via carrier databases.
Strategic Insights: The Module’s Role in 5G Transition
The P-LTEA-EA= is not merely an LTE stopgap—it’s a strategic asset for enterprises navigating the 5G transition. In recent port automation projects, the module provided interim connectivity for autonomous straddle carriers while 5G private networks were being deployed, ensuring zero productivity loss.
From hands-on deployments, the module’s value lies in its spectrum versatility. While 5G C-Band garners attention, many industries (e.g., utilities, transportation) still rely on low-band LTE for coverage in challenging environments. The P-LTEA-EA= addresses this by future-proofing investments—its software-defined radio (SDR) architecture allows firmware upgrades to support emerging bands like n71 (600 MHz 5G). Critics may argue for skipping LTE in favor of 5G, but in reality, the global IoT ecosystem will remain LTE-dependent for at least a decade. For enterprises, this module represents a pragmatic balance between cutting-edge aspirations and operational realities.