1. Product Overview
The Cisco 900 Series Integrated Services Routers (ISRs) are designed to provide Internet access, comprehensive security, and wireless services within a single, high-performance device. These routers are ideal for deployment in small branch offices and managed-service environments, offering robust protection against Internet vulnerabilities and attacks. They support secure broadband, Metro Ethernet, and wireless LTE WAN connectivity, making them versatile for various network setups. Management is facilitated through web-based tools and Cisco IOS Software, ensuring full visibility and control.
2. Setup and Installation
2.1. What's in the Box
- PoE+ compliant managed network switch
2.2. Physical Placement
The Cisco 900 Series Integrated Router has dimensions of 9.5 x 9 x 1.7 inches and weighs approximately 2.65 pounds. Ensure the router is placed on a stable, flat surface in a well-ventilated area to prevent overheating. Maintain adequate clearance around the device for proper airflow.
2.3. Connecting the Router
Identify the various ports on the front panel of the router for proper connectivity. Connect your internet service provider's cable to the appropriate WAN port. Use Ethernet cables to connect your devices (computers, switches) to the LAN ports. For wireless connectivity, ensure the Wi-Fi feature is enabled and configure network settings as required.
Figure 1: Overall front view of the Cisco 900 Series Integrated Router, displaying the power button, console port, USB port, and multiple Gigabit Ethernet LAN ports.
Figure 2: Close-up front view of the Cisco 900 Series Integrated Router's ports, including the console port, USB port, and six Gigabit Ethernet LAN ports labeled 0A through 5A.
3. Operating Instructions
3.1. Basic Operation
Once connected, power on the router. The device will initiate its boot sequence. Status indicator lights on the front panel will provide information on power, system status, and network activity. Refer to the LED indicator guide (not included in this manual) for detailed explanations of light patterns.
3.2. Network Configuration
Access the router's web-based management interface using a web browser and the default IP address (typically found in the quick start guide or on a label on the device). From this interface, you can configure network settings, including WAN connection type, LAN IP address range, Wi-Fi SSID and password, and security features. The router supports Dual-Band frequency (5 GHz) and Wireless Communication Standard 802.11ax for high-speed wireless connectivity.
3.3. Security Features
The 900 Series ISRs provide integrated security and threat defense capabilities. Utilize the management interface to configure firewall rules, VPN settings, and other security protocols to protect your network from unauthorized access and cyber threats. The router is recommended for security applications.
4. Maintenance
To ensure optimal performance and longevity of your Cisco 900 Series Integrated Router, perform regular maintenance. Keep the device clean and free from dust by gently wiping its exterior with a soft, dry cloth. Ensure proper ventilation by keeping the vents clear. Periodically check for and apply firmware updates through the router's management interface to benefit from the latest features, security patches, and performance improvements.
5. Troubleshooting
If you encounter issues with your router, consider the following basic troubleshooting steps:
- No Power: Ensure the power adapter is securely connected to both the router and a working power outlet.
- No Internet Connection: Check the WAN cable connection. Verify that your Internet Service Provider (ISP) service is active. Restart the router and your modem.
- Wi-Fi Issues: Confirm that Wi-Fi is enabled on the router and your devices. Check the Wi-Fi password. Try moving closer to the router to improve signal strength.
- Slow Performance: Restart the router. Check for any network congestion or excessive usage. Ensure firmware is up to date.
For persistent issues, consult the Cisco support website or contact their technical support for advanced assistance.
6. Specifications
| Feature | Description |
|---|---|
| Product Dimensions | 9.5 x 9 x 1.7 inches |
| Item Weight | 2.65 pounds |
| Model Number | C921-4P |
| Brand | Cisco |
| Model Name | 900 Series Integrated Router |
| Connectivity Technology | Wi-Fi |
| Wireless Standard | 802.11ax |
| Frequency Band Class | Dual-Band |
| Frequency | 5 GHz |
| Recommended Use | Security |
| Included Components | PoE+ compliant managed network switch |
| Date First Available | March 12, 2019 |
7. Warranty and Support
For information regarding product warranty, technical support, and additional resources, please visit the official Cisco website. You can also find more information and products at the Cisco Store on Amazon.
