VSOL V1601E02 2-Port EPON OLT in Kenya

The VSOL V1601E02 2-Port EPON OLT is a compact rack-mounted Optical Line Terminal designed for small and medium FTTH, FTTB, FTTO and ISP fibre networks. It provides two EPON PON interfaces and combines them with four Gigabit Ethernet RJ45 uplinks and two SFP/SFP+ uplink slots, giving network operators flexible connectivity to core routers, aggregation switches and upstream fibre networks. 

The V1601E02 is built in a standard 1U 19-inch rack-mount enclosure and supports a maximum optical split ratio of 1:64 per PON port. The EPON interfaces accept PX20, PX20+, PX20++, PX20+++ and PX20++++ optical modules, allowing the operator to select optics according to the required optical power budget and network design. 

The OLT also provides advanced features including Dynamic Bandwidth Allocation, VLAN management, ONU auto-discovery, remote ONU software upgrades, QoS, multicast, IPv4/IPv6 routing, DHCP Snooping, ACLs, RADIUS, TACACS+, HTTPS and SSHv2. This makes it suitable for ISPs that need more than simple Layer 2 fibre aggregation. 

Key Specifications of VSOL V1601E02

These specifications are based on VSOL's published V1601E02 and V1601E02-DP documentation. 

What Is the VSOL V1601E02?

The VSOL V1601E02 is an EPON Optical Line Terminal installed at the ISP or network-operator side of a Passive Optical Network.

Its role is to manage multiple subscriber ONUs through a passive fibre distribution system consisting of feeder fibre, ODFs, PLC splitters, fibre closures, FAT boxes and drop cables.

What Does EPON Mean?

EPON stands for Ethernet Passive Optical Network and is based on IEEE 802.3ah.

The V1601E02 complies with the IEEE 802.3ah EPON standard. 

Two EPON PON Ports

The V1601E02 provides two EPON interfaces.

VSOL specifies a maximum 1:64 split ratio per PON interface. 

The actual number of subscribers should be determined using:

• Optical power budget

• Fibre length

• Splitter loss

• Connector and splice loss

• Package speeds

• Expected traffic

• Uplink capacity

• OLT ONU-registration limits

• Required performance margin

1:64 Split Ratio

Each PON port can support a splitter tree reaching up to 64 optical endpoints.

For many ISP deployments, a 1:16 or 1:32 split may provide a better balance between optical margin, subscriber capacity and available bandwidth than automatically designing to the maximum 1:64.

Maximum Subscriber Capacity

Using the maximum split ratio:

This makes the VSOL V1601E02 particularly attractive to startup and neighbourhood ISPs that need more capacity than a single-port OLT but do not yet require a 4-, 8- or 16-port system.

Supported EPON PON Modules

The OLT accepts multiple optical module classes.

VSOL officially lists all five classes as supported on the V1601E02 platform. 

Higher optical-budget modules can provide additional margin where the network has longer fibre routes, more splitting or higher passive losses.

Uplink Interfaces

One of the strongest features of the VSOL V1601E02 is its uplink configuration.

The two SFP/SFP+ interfaces can be used with compatible fibre modules, while the RJ45 ports provide copper Gigabit Ethernet connectivity. 

Why SFP+ Uplinks Matter

A growing ISP can easily reach the point where a single Gigabit uplink becomes a bottleneck.

With compatible SFP+ modules, the V1601E02 platform can provide higher-speed optical uplinks to:

• MikroTik routers

• Core switches

• Aggregation switches

• Data-centre switches

• ISP upstream infrastructure

This gives the operator more headroom as subscriber traffic increases.

128 Gbps Backplane Bandwidth

The V1601E02-DP specification lists 128 Gbps backplane bandwidth and a forwarding rate of 38.688 Mpps. 

These internal switching specifications are more than sufficient for the OLT's two-PON access architecture and multiple Gigabit/10G-capable uplinks.

Layer 3 Features

The VSOL V1601E02 provides more than basic Layer 2 switching.

VSOL's current documentation lists IPv6 static routing and dynamic routing capabilities including RIPng and OSPFv3/OSPF6, together with IPv6 DHCP and management capabilities.

ONU Auto Discovery

The V1601E02 supports ONU auto-discovery, link detection and remote software upgrades. 

This simplifies subscriber provisioning because the ISP can detect connected EPON ONUs from the OLT rather than configuring every optical endpoint manually in the field.

Dynamic Bandwidth Allocation

Dynamic Bandwidth Allocation (DBA) is supported. 

DBA dynamically distributes upstream EPON capacity among connected ONUs according to traffic requirements and configured policies.

VLAN Support

The V1601E02 supports VLAN division, port VLANs and user separation. 

Possible ISP uses include:

QoS Support

VSOL supports multiple LLIDs and allows different users or services to receive different QoS treatment through separate LLID channels. 

This is useful for offering different customer packages and prioritizing traffic such as:

• Business Internet

• IPTV

• Voice

• CCTV

• Residential broadband

• Management traffic

Multicast Support

The OLT supports multicast capabilities, making it suitable for IPTV and other one-to-many network services. 

Multicast reduces unnecessary duplicate traffic when the same stream must be delivered to multiple subscribers.

Security Features

The V1601E02 includes extensive network security controls.

These functions are listed in VSOL's current datasheets. 

IPv6 Support

The V1601E02 provides extensive IPv6 capability.

1U 19-Inch Rack-Mount Design

The OLT uses a standard 1U 19-inch rack chassis. 

Its compact size makes it suitable for:

• ISP POP racks

• Server rooms

• Data cabinets

• Estate network rooms

• Commercial telecom cabinets

Power Supply Options

Power configurations vary by V1601E02 version.

The V1601E02-DP supports AC and DC options, including combinations of redundant power supplies. 

The typical specified power consumption is around 30 W. 

Operating Environment

This operating range makes the equipment suitable for controlled telecom rooms and many ISP installations, although adequate ventilation and environmental protection remain important.

VSOL V1601E02 vs Single-Port EPON OLT

VSOL V1601E02 vs 4-Port EPON OLT

The V1601E02 is often a strong fit where two PON distribution zones are sufficient for the foreseeable subscriber base.

EPON vs GPON

The V1601E02 is an EPON OLT, so subscriber units must be compatible with EPON or otherwise explicitly support the required operating mode.

Watch VSOL V1601E02 2-Port EPON OLT

Watch on YouTube: https://youtu.be/t_2rMFAmjsU

The VSOL V1601E02 2-Port EPON OLT provides a practical balance between low entry cost and subscriber scalability. Its two PON interfaces can each support optical splitting up to 1:64, allowing a theoretical total of 128 ONU positions while still giving the operator two physically separate PON distribution trees. 

Its uplink configuration is particularly useful for growing ISPs. Four Gigabit RJ45 interfaces can connect to conventional Ethernet infrastructure, while two SFP/SFP+ ports allow fibre or higher-speed uplinks toward core routers and switches. The platform also provides 128 Gbps backplane bandwidth on the V1601E02-DP, giving the OLT sufficient internal switching capacity for its access and uplink interfaces. 

For complete deployment, the OLT should be paired with suitable EPON optics, PLC splitters, fibre cables and subscriber ONUs. Fiber Optics Kenya can supply the VSOL V1601E02 together with PX20++ or compatible PON modules, EPON/XPON ONUs, ODFs, FAT boxes, PLC splitters, fibre closures, patch cords, ADSS fibre cables, FTTH drop cables, fusion-splicing equipment and fibre testing tools.

Applications of VSOL V1601E02

1. Small ISPs

Provides a cost-effective EPON platform for startup operators.

2. Growing ISPs

Two PON ports provide room to divide the fibre network into separate service zones.

3. FTTH Networks

Suitable for residential broadband deployments.

4. Residential Estates

One PON can serve one zone while the second serves another.

5. Apartment Buildings

Provides fibre broadband distribution to multiple apartments.

6. FTTB Networks

Supports fibre-to-the-building services.

7. FTTO Networks

Can provide fibre access to offices and commercial tenants.

8. Campus Networks

Connects buildings through passive optical infrastructure.

9. CCTV Fibre Networks

Supports IP surveillance traffic over EPON infrastructure.

10. Hotels and Commercial Buildings

Can distribute Internet and network services using a passive fibre architecture.

Example Two-Port Network Design

Alternatively:

Typical FTTH Network Architecture

Installation Considerations

Recommended Accessories

Why Buy VSOL V1601E02 from Fiber Optics Kenya?

Frequently Asked Questions

What is the VSOL V1601E02?

The VSOL V1601E02 is a 2-port EPON Optical Line Terminal designed for FTTH, FTTB and ISP fibre networks. It combines two EPON interfaces with four RJ45 uplinks and two SFP/SFP+ uplinks. 

How many PON ports does it have?

It has 2 EPON PON ports. 

What is the maximum split ratio?

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

How many customers can it support?

At the theoretical 1:64 split, two PON interfaces provide 128 optical endpoint positions. Actual subscriber capacity depends on network design and the OLT's configured limits.

Does it support PX20++ modules?

Yes. PX20++ is officially supported. 

Does it support PX20+++ modules?

Yes. 

Does it support PX20++++ modules?

Yes. 

How many uplink ports are available?

The OLT provides six uplinks: four RJ45 and two SFP/SFP+. 

Does it support 10G uplinks?

Its optical uplink slots support SFP/SFP+ configurations, and VSOL lists compatible 10G SFP+ modules among the accessories. 

What is its backplane bandwidth?

The V1601E02-DP specification lists 128 Gbps. 

What is the forwarding rate?

The forwarding rate is specified at 38.688 Mpps. 

Is it rack mounted?

Yes. It uses a standard 1U 19-inch rack enclosure. 

What are its dimensions?

Approximately 442 × 200 × 43.6 mm. 

Does it support VLANs?

Yes. VLAN division and port VLAN functionality are supported. 

Does it support Dynamic Bandwidth Allocation?

Yes. DBA is supported. 

Does it automatically discover ONUs?

Yes. ONU auto-discovery and link detection are supported. 

Can ONUs be upgraded remotely?

Yes. VSOL lists remote ONU software upgrading. 

Does it support QoS?

Yes. Different services and users can be assigned different QoS through LLID configuration. 

Does it support multicast?

Yes. Multicast support is included. 

Does it support IPv6?

Yes. It includes extensive IPv6 routing, DHCP, ACL and management functions.

Does it support OSPF?

The current datasheet includes OSPFv3/OSPF6 for IPv6 dynamic routing. 

Does it support RIPng?

Yes. 

Does it support DHCP Snooping?

Yes. 

Does it support DHCP Option 82?

Yes. 

Does it support ACLs?

Yes. 

Does it support RADIUS?

Yes. 

Does it support TACACS+?

Yes. 

Does it support SSH?

Yes, including SSHv2. 

Does it support HTTPS management?

Yes. 

Is it suitable for a small ISP?

Yes. Two PON interfaces and up to 1:64 splitting make it particularly suitable for small and growing fibre ISPs.

Can it be used for FTTH?

Yes. FTTH is one of its primary applications.

Can it be used for FTTB?

Yes. It can serve fibre-to-the-building deployments.

Can it be used for CCTV networks?

Yes. EPON can carry IP surveillance traffic alongside other data services.

Can it work with MikroTik?

Yes. A MikroTik router can sit upstream of the OLT and handle services such as routing, PPPoE, NAT, bandwidth management and subscriber authentication.

Is it a GPON OLT?

No. The V1601E02 is an EPON OLT. 

Can GPON-only ONTs connect to it?

No. Use EPON-compatible subscriber units or compatible multi-mode XPON devices after confirming interoperability.

Does it support AC power?

Yes. It supports 100–240 V AC. 

Is DC power available?

Yes, on compatible V1601E02-DP configurations.

What is its power consumption?

The published V1601E02-DP specification gives approximately 30 W. 

Do you supply EPON PON modules?

Yes. Fiber Optics Kenya can supply compatible EPON PON SFP modules.

Do you supply EPON ONUs?

Yes. Compatible EPON subscriber units can be supplied.

Do you supply PLC splitters?

Yes. Bare and connectorized PLC splitters can be supplied.

Do you supply ODFs?

Yes. Rack-mounted and wall-mounted ODFs are available.

Do you supply FAT boxes?

Yes. Empty and loaded FTTH FAT boxes can be supplied.

Do you supply fibre optic cables?

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

Do you supply fusion-splicing equipment?

Yes. Fusion splicers, cleavers, strippers and splice protection accessories can be supplied.

Do you supply PON testing equipment?

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

Do you configure VSOL OLTs?

Yes. Professional OLT configuration, ONU provisioning, VLAN setup and FTTH commissioning support is available.

Do you deliver outside Nairobi?

Yes. Fiber Optics Kenya supplies fibre optic equipment 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 V1601E02 2-Port EPON OLT is a strong choice for small and growing ISPs that need more capacity than a single-port OLT without immediately investing in a four- or eight-port platform. Its combination of two EPON PON ports, up to 1:64 splitting, four Gigabit RJ45 uplinks, two SFP/SFP+ uplinks, Layer 3 capabilities, VLANs, DBA, IPv6 and advanced security management provides a scalable foundation for professional FTTH deployments. 

Contact Fiber Optics Kenya for VSOL V1601E02 2-Port EPON OLTs, EPON SFP modules, ONUs, PLC splitters, ODFs, FAT boxes, fibre cables, OLT configuration, fibre installation, testing equipment, bulk orders and nationwide delivery across Kenya.