The FTTx market demands constant evolution: higher speed, rock-solid stability, and, critically, lower Total Cost of Ownership (TCO). VSOL, a leader in optical access solutions, is proud to introduce the next generation of its high-density GPON OLTs: the 8-port V1600G1-R and the 16-port V1600G2-R.
These new R-Series OLTs are not merely replacements for the former V1600G1-B (8 ports) and V1600G2-B (16 ports); they represent a strategic shift, combining carrier-grade performance with an ultra-high cost effectiveness proposition. Engineered to be more reliable, more cost-effective, lighter, and simpler to manage, the V1600G1-R and V1600G2-R set a new benchmark for operators expanding networks in cost-sensitive markets.
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Section I: The Core Innovation—R-Series vs. B-Series
The fundamental difference between the former B-Series (V1600G1-B/G2-B) and the new R-Series lies in a strategic chipset optimization that directly tackles TCO.
The Chipset Strategy: Cost Saving Meets Performance
| Feature | Former B-Series (V1600G1-B / V1600G2-B) | New R-Series (V1600G1-R / V1600G2-R) | Value Driver |
| CPU Chipset | Full BCM (Broadcom) CPU + BCM PON Chip | RTL (Realtek) CPU + BCM PON Chip | Ultra Cost-Effective TCO Reduction |
| G2 Architecture | V1600G2-B used 2*CPU chips, Stacked | V1600G2-R uses a Single CPU Chip | Enhanced Stability and Simplified Hardware |
| Stability | Excellent | Relatively Better | Minor trade-off balanced by massive cost reduction and simpler hardware. |
By transitioning the main CPU to a highly optimized RTL solution while retaining the high-performance BCM PON chip, the R-Series achieves significant cost reduction without compromising the integrity of the GPON access layer.
Unprecedented Performance Boosts in the R-Series
Despite their cost-effective design, the R-Series OLTs deliver a dramatic leap in several critical performance metrics:
| Metric | Former B-Series (V1600G1-B/G2-B) | New R-Series (V1600G1-R/G2-R) | Improvement Factor |
| Multicast Group Capacity | 2048 IP Multicast Groups | 16000 IP Multicast Groups | ~8x Capacity |
| Subnet Routing Capacity | 512 Hardware Subnet Routes | 12000 Hardware Subnet Routes | ~23x Capacity |
| V1600G1 Backplane B/W | 104 Gbps (V1600G1-B) | 240 Gbps (V1600G1-R) | More than 2x Throughput |
| Port Forwarding Rate | 68.448 Mpps (V1600G1-B) | 124.992 Mpps (V1600G1-R) | Significant Speed Increase |
This means the R-Series is not just cheaper; it is technically superior for modern networks demanding high capacity for IPTV, multicast services, and complex Layer 3 routing.
Section II: Detailed Technical Specifications & Management
The R-Series OLTs are high-density, 1U 19-inch standard rack units built for carrier environments.
Connectivity and Physical Specs
| Feature | V1600G1-R (8-Port) | V1600G2-R (16-Port) | B-Series Reference (V1600G1-B/G2-B) |
| GPON Ports | 8 (SFP Slots) | 16 (SFP Slots) | Same port count and SFP interface. |
| Uplink Ports (Total) | 8 (4 GE RJ45 + 4 SFP/SFP+ 1GE/10GE) | 8 (4 GE RJ45 + 4 SFP/SFP+ 1GE/10GE) | V1600G1-B: 4 RJ45 + 2 SFP (1GE) + 2 SFP+ (10GE). R-Series offers greater 10GE uplink flexibility. |
| Backplane Bandwidth | 240 Gbps | 240 Gbps | V1600G1-B: 104 Gbps. R-Series is over 2x faster. |
| Power Options | AC, DC, 1AC+1DC (Hot-Swap Support) | AC, DC, 1AC+1DC (Hot-Swap Support) | Identical high-availability power options for carrier-grade resilience. |
| PON Wavelength | TX 1490nm / RX 1310nm | TX 1490nm / RX 1310nm | Standard GPON wavelength. |
| Supported Modules | Class B+, C, C+, C++, C+++, C++++ | Class B+, C, C+, C++, C+++, C++++ | Full compatibility for various deployment distances and split ratios. |
Advanced Software and Management Capabilities
Both the B-Series and the new R-Series are equipped with a robust software suite necessary for carrier operations, ensuring continuity and ease of transition.
1. Layer 3 Routing and Protection:
- Intelligent Routing: Both series support dynamic Layer 3 routing protocols, specifically RIP/OSPF. This allows the OLT to function as a powerful L3 router + L2 OLT.
- Uplink Redundancy: Multi-level uplink redundancy is achieved through protocols like LACP, STP, RSTP, and MSTP to ensure maximum network uptime.
- Security: Both models offer powerful security protection, including a flexible strategy-based firewall to resist various attacks.
2. O&M and Configuration Simplicity:
- Plug & Play Deployment: The R-Series is designed for simplified, fast deployment with template configuration and true Plug & Play functionality, minimizing Operation and Maintenance (O&M) thresholds.
- Management Modes: Operators have complete control via various standard interfaces: EMS, WEB, SNMP, Telnet, and CLI.
- Enhanced Management Ports (R-Series): The R-Series includes a comprehensive set of management ports: 1*10/100/1000BASE-T out-band port, 1*CONSOLE port, 1*USB2.0, and 1*Type-C USB for console access, offering modern connection flexibility.
Section III: Versatile Deployment for a Converged Future
The V1600G1-R and V1600G2-R are built for flexible deployment in a variety of challenging and growing markets:
- FTTM (Fiber to the Mobile) and Convergent Networks: The compact design and functional integration support FTTM deployment and are optimized for rack sharing with wireless base stations. This is vital for operators building converged wireline and wireless infrastructure.
- High-Capacity Service Delivery: With the 8x multicast capacity (16000 groups), these OLTs are perfectly suited to handle high volumes of video and data traffic, ensuring a future-proof backbone for entertainment and business services.
- Cost-Sensitive Expansions: Their cost-effective construction makes them the ideal choice for rolling out fiber access in challenging, price-sensitive areas such as vast rural areas, coastal islands, towns, and industrial parks.
Conclusion: The Definitive Choice for Value and Performance
The VSOL V1600G1-R and V1600G2-R 8/16-port GPON OLTs represent a clear step forward. VSOL has leveraged chipset optimization to drastically reduce TCO while simultaneously delivering superior backplane bandwidth, forwarding rates, and routing capacity compared to the former B-Series.
For any network operator seeking to deploy high-density, carrier-grade, Layer 3 GPON services on a modern, optimized budget, the new R-Series OLTs are the most strategically advantageous choice on the market. Maximize your network value today without compromising the quality or capacity your customers demand.
