

Grandstream
Grandstream High Availability Controller for UCM6510
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Eliminate Downtime with the Grandstream HA100 High Availability Controller
Ensure your business communications never miss a beat with the Grandstream HA100 High Availability Controller. Designed exclusively for the UCM6510 IP PBX, this powerful device provides a seamless, automated failover solution to guarantee maximum uptime and system reliability. For any organization that depends on constant, uninterrupted voice communication, the HA100 is an essential investment in business continuity.
Intelligent, Automatic System Redundancy
The HA100 creates a fully redundant system by connecting and constantly monitoring two separate UCM6510 IP PBXs. In the event the primary UCM6510 fails, the HA100 intelligently and automatically switches full system control to the hot-standby secondary unit. This critical transfer includes all connected telecom lines, network links, auxiliary devices, and registered SIP endpoints, ensuring your operations continue without disruption.
High-Speed, Seamless Failover
Downtime is measured in seconds, not minutes. The HA100 completes the entire system switch in as little as 10 to 50 seconds, with the exact time depending on the number of registered SIP endpoints. It utilizes Gratuitous ARP to force SIP endpoints to refresh the MAC address of the new UCM6510, preventing interruptions and ensuring a smooth transition for all users.
At-a-Glance System Status
Stay informed about your system's health with up to 14 intuitive LED indicators. These lights provide real-time status updates on all telecom lines, network links, and connected devices, giving you complete visibility and peace of mind.
Key Features:
- Provides an automated high-availability and failover solution for two UCM6510 IP PBXs.
- Constantly monitors the operational status of both units for immediate failure detection.
- Rapid 10-50 second failover time ensures minimal service disruption.
- Gratuitous ARP technology for seamless endpoint transition.
- 14 LED indicators for real-time status monitoring of all connections.
Technical Specifications
| Interfaces (Front Panel) |
- Analog Telephone FXS Ports: 4 (2 FXS A, 2 FXS B) - PSTN Line FXO Ports: 4 (2 FXO A, 2 FXO B) - T1/E1 Interface: 2 ports (T1/E1 A, T1/E1 B) - Network Interfaces: 2 LAN, 2 WAN |
| Interfaces (Back Panel) |
- Analog Telephone FXS Ports: 2 - PSTN Line FXO Ports: 2 - T1/E1 Interface: 1 port - Network Interfaces: 1 LAN, 1 WAN - RS-485: 2 (1 for Primary UCM6510, 1 for Secondary UCM6510) - Reset Switch: Yes |
| LED Indicators | Power, T1/E1, FXS, FXO, LAN, WAN |
| Failover Time | 10 to 50 seconds (depending on the number of registered SIP endpoints) |
| Power Supply | DC 12V, 1.5A |
| Dimensions | 20 x 14 x 4 in |
| Weight | 6.6 lbs |
| Compatibility | Exclusively for Grandstream UCM6510 IP PBX |
Manufacturer Technical Data
| Product Spec Sheet |
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Shipping & Returns
- R120 Delivery Fee
- 30 Day Returns
- 24 Hour Live Chat Support
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Frequently Asked Questions
Answers to frequently asked questions
Does NexGen Computing conduct regular security audits?
Yes, we regularly conduct security audits and vulnerability assessments to identify and address potential security weaknesses, maintaining a high level of security and compliance with industry standards.
How can I stay informed about policy changes?
We reserve the right to update or modify our policies at any time. Changes will be posted on our website, and your continued use of our products and services constitutes acceptance of any changes.
Where can I find more information or ask additional questions?
For more information or assistance, please visit our website at www.nexgencomputing.co.za or contact us at support@nexgencomputing.co.za.
How does NexGen Computing handle shipping and delivery?
Orders are processed promptly, with delivery details provided at checkout. Tracking information will be emailed once your order ships.
What is the return and refund policy?
Refunds are typically issued for defective or incorrect items within 14 days of receipt. For detailed information, please refer to our Refund Policy.
Is my payment information secure?
Yes, all payments made on our site are processed securely on our domain using industry-standard security measures. Sensitive data, such as credit card numbers, are processed by PCI-compliant payment processors like Yoco, Paystack, and Peach Payments.





