1U 2 Port GPON OLT 10GE + 4xGE UPLINK + 2xPON SFP+ CONSOLE L3

Short Description:

The CGS2R1 2-port GPON OLT is a high-performance, cost-effective commercial optical line terminal engineered for small and medium-scale FTTx network deployments. Built on the mature and reliable Realtek RTL9615C + LT1103 chip platform, this compact GPON OLT delivers outstanding operational stability, universal terminal compatibility, and long-term service reliability for diverse passive optical network scenarios. Fully compliant with the ITU-T G.984 series GPON international standards.

Product Model: CGS2-R1

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Product Detail

Product Tags

Chipset Solution: Realtek RTL9615C main chip + LT1103 dedicated OLT PON driver chip

Device configuration: 2×GPON ports + 4×Gigabit Ethernet ports + 1×10G SFP+ uplink port + 1×CONSOLE management port

Core specification update: A single PON port now supports up to 128 ONU units under full load (maximum capacity of standard GPON), and a standard GPON optical module for dedicated OLT can be connected via the PON port.

I. Product Overview

CGS2R1 is a cost-effective compact commercial 2-port GPON OLT device based on the proven OLT chip platform of Realtek RTL9615C + LT1103. It fully complies with the ITUT G.984 series of GPON international standards, offering excellent terminal compatibility and service stability. The device features two independent GPON access ports, four Gigabit Ethernet Ethernet ports, one 10G SFP+ high-speed uplink port, and an RJ45 console interface for local debugging. Designed for deployment in small-to-medium-sized data centers, it is widely applicable across various all-optical access scenarios, including residential FTTH, enterprise all-optical networking, security PON networks, and hotel fiber optic coverage.

The PON port of the device requires an external standard OLT-specific GPON optical module (B+/C+/C++). A single PON port can support the registration, management, and full-load operation of up to 128 ONU terminals, making it a high-capacity, cost-effective access device for desktop OLTs of the same specification.

II. Core Hardware Specifications

2.1 Core Chip and Storage Configuration

Project	Parameter Specifications
Main control chip	Realtek RTL9615C (industrial-grade dual-core processor)
PON driver chip	LT1103 (dedicated OLT PON driver, supports up to 128 ONU units under full load)
RAM	4GB DDR
Flash memory	2GB NAND Flash

2.2 Port Hardware Configuration (System Ports)

The front panel, from left to right, consists of: a reset button, an LED status indicator area, two GPON SFP optical ports, four GE Gigabit Ethernet ports, one 10G SFP+ uplink port, and a CONSOLE management port.

Port type	Quantity	Define
GPON access port	2	Standard SFP hot-swappable slot, compatible only with GPON optical modules dedicated to OLT; does not support ONU optical modules; a single port can support up to 128 ONU terminals when fully loaded.
GE Gigabit Ethernet Port	4	10/100/1000M auto-negotiation RJ45 interface, supports Auto-MDI/MDIX; suitable for downstream service connections or as a backup upstream connection.
10G SFP+ uplink port	1	XSFP high-speed slot, compatible with 10G/1G optical modules, for uplink connections to core switches and routers.
Console management port	1	RJ45 serial port for local CLI debugging, device initialization, and fault troubleshooting; baud rate: 115200-8-N-1
Reset button	1	Press and hold for 5 seconds to restore factory default settings.

III. Software Functional Specifications

3.1 Core Business Functions of PON

◉Standard OMCI protocol management, fully compatible with GPON ONU terminals from mainstream brands including Huawei, ZTE, FiberHome, and Tianyi.

◉Supports three ONU registration authentication modes: SN, Password, and SN+Password.

◉Supports full-load scheduling for up to 128 UNUs, enables DBA-based dynamic bandwidth allocation, and ensures stable, concurrent operation across multiple terminals.

◉Supports flexible configuration of T-CONT and GEM ports, enabling granular bandwidth control.

◉Real-time monitoring of ONU status, optical power, offline alarms, and fault reporting.

3.2 Layer 2 Switching and Service Functions

◉Supports 802.1Q VLAN segmentation, port VLAN, and tag/untag conversion.

◉Supports IGMP V2/V3 snooping and is compatible with IPTV multicast services.

◉Supports 802.1p QoS priority scheduling, port rate limiting, and traffic shaping, ensuring seamless performance even with multiple users operating concurrently.

◉MAC address table: 8K, meeting the forwarding requirements for multiple terminal access

3.3 System Management Features

◉Multiple management options: Web-based graphical management, Console CLI, Telnet, and SSH remote management

◉Supports SNMP v2/v3 management protocols to enable unified platform operations and maintenance.

◉Supports system log recording, fault alerts, configuration import/export, and online firmware updates.

◉Supports port status monitoring, traffic statistics, and device operational status detection.

IV. Product Application Scenarios

◉FTTH fiber-to-the-home broadband access in residential communities and urban villages.

◉All-optical internal network deployment for industrial parks, office buildings, and factories.

◉Full-house fiber optic networking for hotels, apartments, and homestays.

◉Security monitoring PON networks and centralized access for IoT terminals.

◉Laboratory, project testing, and secondary development testing scenarios.

V. Standard Product Configuration Description

The equipment host comes standard with a built-in AC 100–240 V power supply and an external DC 12 V power adapter; the GPON OLT optical module and the 10G SFP+ uplink module are optional accessories. The complete unit does not include optical modules; external standard OLT-specific GPON modules must be used.