VSOL 4-Port Mini EPON OLT in Kenya

The VSOL 4-Port Mini EPON OLT, model V1600D-MINI, is a compact Optical Line Terminal designed for small and medium FTTH, FTTB, FTTO and ISP fibre networks. It combines four EPON PON ports with four Gigabit Ethernet copper uplinks in a compact 1U-height chassis, making it a practical option where rack space, power consumption and initial deployment cost are important considerations. 

Each PON interface supports a maximum 1:64 optical split ratio, giving the unit up to 256 theoretical ONU positions across all four PON ports. VSOL specifies symmetrical 1.25 Gbps EPON operation, up to 20 km transmission distance, 1490 nm downstream transmission and 1310 nm upstream reception. 

The V1600D-MINI also supports Dynamic Bandwidth Allocation, ONU auto-discovery, remote ONU software upgrades, VLANs, RSTP, IGMP, QoS, rate limiting, port isolation and SNMP/Telnet/CLI management. 

Key Specifications

VSOL's current product page confirms four 1000M copper uplinks, four EPON SFP slots, 1:64 maximum splitting, support for PX20 through PX20+++ optics, a 1U chassis, 15 W power consumption and compact 224 × 200 × 43.6 mm dimensions. 

What Is the VSOL V1600D-MINI?

The V1600D-MINI is the central active device used on the service-provider side of an EPON network.

VSOL markets the V1600D-MINI specifically as a small, flexible and easy-to-deploy EPON OLT for FTTH networks. 

Four EPON PON Ports

The VSOL V1600D-MINI provides four independent EPON interfaces.

The four-port design allows an ISP to assign different PON interfaces to separate estates, apartment blocks, towns, business zones or expansion areas. 

Maximum Subscriber Capacity

The 256 figure is a theoretical endpoint count. The real network design should also consider optical loss, subscriber bandwidth demand and the available uplink capacity.

1:32 vs 1:64 Splitting

A 1:16 or 1:32 architecture may often provide a better engineering margin than immediately operating every PON at 1:64.

EPON Port Speed

VSOL specifies symmetrical 1.25 Gbps EPON operation. 

The available bandwidth is shared among the ONUs connected to each PON tree.

Supported PON Modules

VSOL officially lists these four optical-module classes for the V1600D-MINI. 

The appropriate module should be selected according to splitter losses, fibre distance, connector losses and the required optical safety margin.

20 km Transmission Distance

VSOL specifies up to 20 km transmission distance for the V1600D-MINI. 

Actual usable reach depends on:

• Fibre attenuation

• PLC splitter loss

• Connector losses

• Adapter losses

• Fusion splice losses

• PON module optical class

• ONU sensitivity

• Engineering margin

An optical power-budget calculation should always be completed before deployment.

EPON Wavelengths

VSOL specifies TX at 1490 nm and RX at 1310 nm for the V1600D-MINI. 

Four Gigabit Uplink Ports

The V1600D-MINI provides four 10/100/1000 Mbps auto-negotiating copper uplinks. 

The uplinks can connect the OLT to a MikroTik router, managed switch or other ISP core equipment.

Backplane and Forwarding Performance

These performance figures are published in the V1600D-MINI datasheet. 

Dynamic Bandwidth Allocation

The V1600D-MINI supports Dynamic Bandwidth Allocation (DBA). 

DBA helps the OLT distribute upstream bandwidth dynamically between connected ONUs.

ONU Auto Discovery

VSOL supports:

• ONU auto-discovery

• Link detection

• Remote ONU software upgrading

• Online ONU configuration

• Alarm management

• User management

These functions simplify subscriber activation and network troubleshooting. 

VLAN Support

The V1600D-MINI supports port VLANs, VLAN tags and transparent VLAN transmission. 

QoS Support

Different LLID channels can be assigned different QoS treatment, allowing an operator to prioritize customers or services. 

Typical QoS applications include:

• Residential Internet

• Business Internet

• CCTV

• IPTV

• VoIP

• Network-management traffic

Port Isolation

The OLT supports port isolation between different ports, helping reduce unwanted Layer 2 communication between subscriber groups. 

Bandwidth Control

Port-based rate limitation and bandwidth control are supported. 

This can complement subscriber-management platforms such as MikroTik PPPoE, queues or external billing systems.

RSTP and IGMP

The V1600D-MINI supports Layer 2 features including:

• RSTP

• IGMP

• VLAN

• Trunk

• QoS

IGMP support is useful for multicast applications such as IPTV, while RSTP helps prevent Layer 2 loops.

Management Options

VSOL lists SNMP, Telnet and CLI as the primary management modes for the V1600D-MINI. 

Compact 1U Design

The V1600D-MINI is designed to save rack and server-room space.

VSOL describes the unit as a 1U 19-inch solution intended to economize server-room space. 

Low Power Consumption

The relatively low 15 W power requirement makes the Mini attractive for small POPs where UPS runtime and power efficiency matter.

Operating Environment

VSOL 4-Port Mini EPON OLT vs 2-Port EPON OLT

VSOL 4-Port Mini vs VSOL V1600D8

V1600D-MINI vs V1600D4 Layer 3 OLT

VSOL also offers a full Layer 3 4-port EPON OLT, the V1600D4, which provides four GE copper uplinks plus four SFP/SFP+ interfaces and supports static routing, RIP and OSPF. 

EPON vs GPON

The V1600D-MINI is specifically an EPON OLT, so subscriber ONUs should be EPON compatible or verified XPON units capable of EPON operation.

Watch VSOL 4-Port Mini EPON OLT

https://youtu.be/DMmYbBZXUG4

The VSOL V1600D-MINI 4-Port EPON OLT provides an attractive balance between subscriber capacity and compact physical design. Four PON interfaces with up to 1:64 splitting provide as many as 256 theoretical ONU positions while still allowing an operator to divide the fibre network into four independent distribution branches. 

Its small dimensions and approximately 15 W power consumption make it especially suitable for small ISP POPs, estate network rooms and compact telecommunications cabinets. Despite its size, the platform provides DBA, VLAN support, ONU auto-discovery, QoS, RSTP, IGMP and remote ONU management. 

For complete deployment, Fiber Optics Kenya can supply the VSOL V1600D-MINI together with PX20, PX20+, PX20++ and PX20+++ PON modules, EPON/XPON ONUs, PLC splitters, ODFs, FAT boxes, fibre closures, ADSS cables, FTTH drop cables, patch cords, fusion-splicing equipment and optical testing tools.

Applications of VSOL 4-Port Mini EPON OLT

Small and Growing ISPs

Provides four PON branches without requiring a large OLT chassis.

FTTH Networks

Suitable for neighbourhood and estate fibre broadband networks.

Residential Estates

Each PON interface can serve a separate estate section.

Apartment Networks

Can distribute fibre connections across multiple apartment blocks.

FTTB Networks

Suitable for fibre-to-the-building infrastructure.

FTTO Networks

Can provide fibre access to offices and commercial tenants.

Campus Networks

Four PON interfaces can be allocated to different buildings.

CCTV Networks

EPON infrastructure can carry IP surveillance traffic.

Hotels and Resorts

Can distribute Internet and IP services across several buildings.

Rural Broadband

Its compact design is suitable for small regional POPs.

Example Four-Port Network Design

Typical FTTH Architecture

Installation Considerations

Recommended Accessories

Why Buy VSOL 4-Port Mini EPON OLT from Fiber Optics Kenya?

Frequently Asked Questions

What is the VSOL 4-Port Mini EPON OLT?

It is the VSOL V1600D-MINI, a compact four-port EPON Optical Line Terminal designed for FTTH and similar fibre access networks. 

How many PON ports does it have?

It has 4 EPON SFP PON ports. 

What is the maximum split ratio?

The maximum specified split ratio is 1:64 per PON port. 

How many ONUs can it theoretically serve?

At 1:64 across four PON interfaces, it provides 256 theoretical ONU positions.

What is the PON speed?

Each EPON interface operates at approximately 1.25 Gbps symmetrical. 

What is the maximum fibre distance?

VSOL specifies up to 20 km. 

What wavelengths does it use?

The OLT uses 1490 nm downstream and 1310 nm upstream.

What connector does it use?

The published specification lists SC/UPC. 

What fibre type does it support?

It is specified for 9/125 µm single-mode fibre. 

Does it support PX20++ modules?

Yes. 

Does it support PX20+++ modules?

Yes. 

How many uplink ports does it have?

It provides four Gigabit RJ45 uplinks. 

Does it support 10G SFP+ uplinks?

No. The Mini model's official specification lists four Gigabit copper uplinks. For SFP/SFP+ uplinks and more advanced Layer 3 functionality, VSOL offers other four-port platforms such as the V1600D4. 

What is the backplane bandwidth?

The V1600D-MINI is specified at 16 Gbps. 

What is the forwarding rate?

Approximately 11.904 Mpps. 

How many MAC addresses does it support?

Up to 16K MAC addresses. 

Does it support DBA?

Yes. Dynamic Bandwidth Allocation is supported. 

Does it support ONU auto-discovery?

Yes. 

Can ONU firmware be upgraded remotely?

Yes. Remote ONU software upgrades are supported. 

Does it support VLANs?

Yes. Port VLAN, VLAN tags and transparent VLAN transmission are supported.

Does it support QoS?

Yes. Different LLIDs can be given different QoS treatment. 

Does it support RSTP?

Yes.

Does it support IGMP?

Yes. 

Does it support port isolation?

Yes. 

Does it support bandwidth control?

Yes. Port-based rate limiting and bandwidth control are supported. 

What management methods are available?

The official datasheet lists SNMP, Telnet and CLI. 

Is it a rack-mounted OLT?

VSOL describes the V1600D-MINI as a compact 1U 19-inch design. 

What are its dimensions?

Approximately 224 × 200 × 43.6 mm. 

How much does it weigh?

Approximately 2 kg. 

What power supply does it use?

It accepts approximately 90–264 V AC at 47–63 Hz. 

What is the power consumption?

Approximately 15 W. 

What operating temperature does it support?

Approximately -20°C to +60°C. 

Is it suitable for FTTH?

Yes. VSOL specifically positions the Mini OLT for FTTH deployments. 

Is it suitable for a small ISP?

Yes. Its compact design, four PON ports and low power consumption make it well suited to small and growing ISPs.

Can it work with MikroTik?

Yes. A MikroTik router can be connected upstream for PPPoE, routing, NAT, bandwidth management and subscriber authentication.

Is it a GPON OLT?

No. The V1600D-MINI is an EPON OLT. 

Can GPON-only ONTs connect to it?

No. Use compatible EPON ONUs or properly verified XPON devices operating in EPON mode.

Do you supply EPON ONUs?

Yes. Fiber Optics Kenya can supply compatible EPON and XPON ONUs.

Do you supply EPON SFP modules?

Yes. PX20, PX20+, PX20++ and PX20+++ options can be supplied.

Do you supply PLC splitters?

Yes. 1x2, 1x4, 1x8, 1x16, 1x32 and 1x64 PLC splitters can be supplied.

Do you supply ODFs?

Yes. Rack-mounted and wall-mounted ODFs can be supplied.

Do you supply FAT boxes?

Yes. Empty and loaded FAT boxes can be supplied.

Do you supply fibre optic cables?

Yes. Outdoor, ADSS, armoured and FTTH drop fibre cables can be supplied.

Do you supply fibre closures?

Yes. Fibre splice closures in multiple capacities can be supplied.

Do you supply fusion-splicing equipment?

Yes. Fusion splicers, cleavers, fibre strippers and related accessories can be supplied.

Do you supply fibre testing equipment?

Yes. Optical power meters, PON meters, VFLs and OTDRs can be supplied.

Can you configure the VSOL V1600D-MINI?

Yes. Professional OLT setup, ONU provisioning, VLAN configuration, uplink setup and EPON network commissioning support is available.

Do you deliver outside Nairobi?

Yes. Fiber Optics Kenya supplies fibre optic products and accessories throughout Kenya.

Contact Fiber Optics Kenya

Fiber Optics Kenya
Lyric House
7th Floor Room S9
Kimathi Street
Nairobi

Phone: +254 704 991 492
Email: info@fibreopticskenya.co.ke

The VSOL 4-Port Mini EPON OLT V1600D-MINI is a compact and cost-effective option for small and growing FTTH networks. It combines four EPON PON ports, up to 1:64 splitting, as many as 256 theoretical ONU positions, 20 km reach, four Gigabit uplinks, DBA, VLAN, QoS, ONU auto-discovery and centralized management in a low-power 1U platform. 

Contact Fiber Optics Kenya for VSOL 4-Port Mini EPON OLTs, PON SFP modules, EPON/XPON ONUs, PLC splitters, ODFs, FAT boxes, fibre closures, fibre optic cables, professional OLT configuration, installation support, bulk orders and nationwide delivery across Kenya.