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FTTC (Fiber to the Cabinet) and FTTN (Fiber to the Node) are two hybrid fiber-copper access architectures that represent different depths of fiber penetration into the access network. Both use optical fiber to carry high-capacity traffic from the central office toward the subscriber, and both rely on existing copper infrastructure to complete the final connection. The difference between them is one of degree—how far the fiber reaches before it gives way to copper—but that difference has profound consequences for achievable bandwidth, deployment cost, and the subscriber experience.
FTTN places a remote node—a powered equipment enclosure containing a DSLAM or similar access equipment—somewhere between the central office and the subscriber. The node serves a relatively large area, and the copper loop from the node to the subscriber can be 1,000 to 3,000 meters or more. FTTC pushes the fiber deeper, terminating it at a street cabinet that serves a smaller cluster of 100 to 300 premises. The copper loop from the cabinet to the subscriber is typically 100 to 500 meters—significantly shorter than in FTTN.
The copper loop length is the decisive variable. Copper attenuation increases with both frequency and distance, and the usable frequency spectrum—and therefore the achievable bandwidth—is directly determined by the loop length. A VDSL2 signal that delivers 100 Mbps over 300 meters may deliver only 20 to 30 Mbps over 1,500 meters. This is why FTTC consistently outperforms FTTN: the shorter copper loop enables higher frequencies, wider channels, and greater bandwidth.
FTTN was the first step that many operators took when upgrading from ADSL to higher-speed broadband. It allowed them to push fiber into the network without the cost and disruption of reaching every building. FTTC was the next step, pushing the fiber deeper and shortening the copper loop to deliver higher speeds. Together, they represent the progressive migration from copper-based access to full fiber-to-the-home.
This guide examines both architectures in depth: their topology, node and cabinet characteristics, copper loop lengths, achievable bandwidth, latency, deployment requirements, cost structures, application scenarios, and the migration path to FTTH.
1. What Is FTTN?
FTTN, or Fiber to the Node, is an access network architecture in which optical fiber runs from the operator's central office to a remote node located somewhere in the field—typically a street cabinet, a pedestal, or a small equipment enclosure. The node contains a DSLAM or similar access equipment that converts the optical signal to an electrical signal for transmission over the existing copper twisted-pair network.
The key characteristic of FTTN is the distance between the node and the subscriber. Because the node serves a relatively large area—often several hundred to several thousand premises—the copper loop from the node to the subscriber is long. In typical FTTN deployments, the copper loop length ranges from 1,000 to 3,000 meters, and in some cases up to 5,000 meters for the most distant subscribers.
1.1 FTTN Topology
Fiber segment: From the central office to the remote node. The fiber may be a point-to-point connection or a PON connection.
Node equipment: A DSLAM or similar access equipment, powered from the local electricity network, with battery backup.
Copper segment: From the node to the subscriber premises, using the existing twisted-pair network. This is the long copper loop that limits performance.
Copper loop length: Typically 1,000 to 3,000 meters, sometimes longer.
Premises equipment: A VDSL2 or ADSL2+ modem connected to the existing telephone outlet.
1.2 FTTN Characteristics
Node-based: The fiber terminates at a remote node serving a large area.
Long copper loop: 1,000–3,000 meters, severely limiting the achievable bandwidth.
Shared node equipment: The DSLAM is shared among all premises served by the node.
Lowest deployment cost: Fiber is pulled only to the node, not to each cabinet or building.
Moderate bandwidth: Typically 20–50 Mbps downstream with VDSL2, depending on loop length.
2. What Is FTTC?
FTTC, or Fiber to the Cabinet, is an access network architecture in which optical fiber runs from the operator's central office to a street cabinet located closer to the subscriber than an FTTN node. The cabinet contains a DSLAM or a G.fast distribution point unit (DPU) that converts the optical signal to an electrical signal for transmission over the existing copper twisted-pair network.
The key characteristic of FTTC is the shorter copper loop. Because the cabinet serves a smaller cluster of premises—typically 100 to 300—the copper loop from the cabinet to the subscriber is shorter than in FTTN. In typical FTTC deployments, the copper loop length ranges from 100 to 500 meters.
2.1 FTTC Topology
Fiber segment: From the central office to the street cabinet. Typically a point-to-point fiber or a PON connection.
Cabinet equipment: A DSLAM or G.fast DPU, powered from the local electricity network, with battery backup.
Copper segment: From the cabinet to the subscriber premises, using the existing twisted-pair network. This is the shorter copper loop that enables higher bandwidth.
Copper loop length: Typically 100 to 500 meters.
Premises equipment: A VDSL2 or G.fast modem connected to the existing telephone outlet.
2.2 FTTC Characteristics
Cabinet-based: The fiber terminates at a street cabinet serving a smaller area.
Shorter copper loop: 100–500 meters, enabling higher bandwidth.
Cabinet-level equipment: The DSLAM or DPU serves the cabinet's cluster of premises.
Moderate deployment cost: Fiber is pulled to each cabinet, which is more expensive than FTTN but less than FTTB or FTTH.
Higher bandwidth: Typically 50–100 Mbps downstream with VDSL2, or 150–500 Mbps with G.fast.
3. The Copper Loop: The Decisive Variable
The single most important factor determining the performance of both FTTN and FTTC is the length and quality of the copper loop between the fiber termination point and the subscriber premises.
3.1 Copper Attenuation vs Frequency and Distance
Twisted-pair copper exhibits frequency-dependent attenuation. At low frequencies (below 1 MHz), the attenuation is relatively low and the signal can travel long distances. At higher frequencies (above 10 MHz), the attenuation increases sharply, and the signal degrades rapidly with distance. VDSL2 uses frequencies up to 30 MHz, while G.fast uses frequencies up to 106 MHz (and up to 212 MHz in later profiles).
The practical consequence is that higher bandwidth requires shorter copper loops. VDSL2 can deliver 100 Mbps over 300 meters, but only 20–30 Mbps over 1,500 meters. G.fast can deliver 1 Gbps over 100 meters, but only 150–300 Mbps over 300 meters, and it becomes unusable beyond 500 meters.
| Copper Loop Length | ADSL2+ | VDSL2 (30 MHz) | G.fast (106 MHz) | Typical Architecture |
|---|---|---|---|---|
| 50 m | ~24 Mbps | ~150 Mbps | ~1,000 Mbps | FTTB / FTTC (very short) |
| 100 m | ~24 Mbps | ~120 Mbps | ~800 Mbps | FTTC (short) |
| 200 m | ~24 Mbps | ~80 Mbps | ~500 Mbps | FTTC (medium) |
| 300 m | ~24 Mbps | ~60 Mbps | ~300 Mbps | FTTC (medium) |
| 500 m | ~20 Mbps | ~40 Mbps | ~150 Mbps | FTTC (long) |
| 1,000 m | ~12 Mbps | ~20 Mbps | Not viable | FTTN (short) |
| 1,500 m | ~8 Mbps | ~15 Mbps | Not viable | FTTN (medium) |
| 2,000 m | ~5 Mbps | ~10 Mbps | Not viable | FTTN (long) |
| 3,000 m | ~3 Mbps | Not viable | Not viable | FTTN (very long) |
The table illustrates the dramatic effect of loop length on achievable bandwidth. A VDSL2 connection over a 300-meter loop delivers 60 Mbps, while the same technology over a 1,500-meter loop delivers only 15 Mbps—a fourfold reduction. This is why FTTC consistently outperforms FTTN: the shorter copper loop from the cabinet enables higher frequencies and greater bandwidth.
3.2 The FTTN Bandwidth Ceiling
In an FTTN deployment, the copper loop length is often 1,500 meters or more. At these distances, VDSL2 performance drops to 10–20 Mbps, and ADSL2+ performs at 5–12 Mbps. This is only marginally better than the ADSL service that FTTN was intended to replace, and it is far below the 25 Mbps threshold that many regulators define as "broadband."
This is the fundamental limitation of FTTN: the long copper loop severely restricts the achievable bandwidth, and no amount of equipment improvement at the node can overcome the physics of copper attenuation over distance.
3.3 Copper Quality and Condition
Beyond length, the quality and condition of the copper pair affect performance. Factors include:
Wire gauge: Thicker wires (lower AWG) have lower attenuation and support higher bandwidth over longer distances. Older networks may use thinner gauge wire.
Pair balance: Well-balanced pairs have lower crosstalk and support higher frequencies.
Bridge taps: Unused copper branches attached to the pair cause reflections and degrade performance, especially at higher frequencies.
Age and corrosion: Older copper may have splices, corrosion, or water ingress that increase attenuation and noise.
Crosstalk: Adjacent pairs in the same binder couple signal into each other, causing crosstalk that limits performance.
In FTTN deployments, the copper network from the node to the subscriber is typically older and more variable in quality than in FTTC deployments, where the shorter copper loop from the cabinet is often in better condition.
4. Bandwidth Comparison
The achievable bandwidth differs significantly between FTTN and FTTC because of the copper loop length difference.
4.1 FTTN Bandwidth
FTTN using VDSL2 typically delivers 10 to 30 Mbps downstream and 1 to 5 Mbps upstream, depending on the loop length and copper quality. In areas where the node is close to the subscriber (less than 1,000 meters), VDSL2 can deliver up to 40 Mbps. ADSL2+ in an FTTN configuration delivers 5 to 15 Mbps downstream.
FTTN bandwidth is shared among the subscribers served by the same node. A node serving 500 premises may have a 1 Gbps or 10 Gbps fiber backhaul, which is shared among all active subscribers. During peak hours, the per-subscriber bandwidth can drop significantly.
4.2 FTTC Bandwidth
FTTC using VDSL2 typically delivers 40 to 100 Mbps downstream and 5 to 20 Mbps upstream, depending on the loop length. G.fast in an FTTC configuration, where the DPU is at the cabinet, delivers 150 to 500 Mbps depending on the loop length.
FTTC bandwidth is shared among the subscribers served by the same cabinet. A cabinet serving 200 premises may have a 1 Gbps or 10 Gbps fiber backhaul, which is shared among all active subscribers. Because the cabinet serves fewer premises than an FTTN node, the per-subscriber bandwidth is generally higher.
| Parameter | FTTN (VDSL2) | FTTC (VDSL2) | FTTC (G.fast) |
|---|---|---|---|
| Typical Downstream | 10–30 Mbps | 40–100 Mbps | 150–500 Mbps |
| Typical Upstream | 1–5 Mbps | 5–20 Mbps | 50–200 Mbps |
| Copper Loop Length | 1,000–3,000 m | 100–500 m | 100–300 m |
| Backhaul Sharing | Shared among node subscribers | Shared among cabinet subscribers | Shared among cabinet subscribers |
| Premises per Node/Cabinet | 500–2,000 | 100–300 | 100–300 |
5. Latency and Performance
Latency and jitter differ between FTTN and FTTC because of the copper loop length and the technologies used.
5.1 FTTN Latency
FTTN latency is dominated by the long copper segment from the node to the premises. VDSL2 and ADSL2+ use forward error correction (FEC) and interleaving to combat impulse noise on the copper pair. Interleaving introduces additional latency—typically 10 to 30 milliseconds—because it spreads the data over time to allow error correction. The longer the copper loop, the more interleaving is required, and the higher the latency.
FTTN round-trip latency is typically 20 to 40 milliseconds, depending on the loop length and the interleaving depth. This is significantly higher than FTTH (1–5 ms) and higher than FTTC.
5.2 FTTC Latency
FTTC latency is lower because the copper loop is shorter. With a shorter loop, less interleaving is required, and the FEC can operate with lower latency. G.fast, which uses a shorter copper loop, can operate with lower interleaving depth and therefore lower latency than VDSL2 over a longer loop.
FTTC round-trip latency is typically 10 to 25 milliseconds, depending on the copper loop length and the technology used. This is lower than FTTN but still higher than FTTH.
| Parameter | FTTN (VDSL2) | FTTC (VDSL2) | FTTC (G.fast) |
|---|---|---|---|
| Copper Loop Length | 1,000–3,000 m | 100–500 m | 100–300 m |
| Interleaving Depth | Higher | Moderate | Lower |
| Typical Round-Trip Latency | 20–40 ms | 10–25 ms | 5–15 ms |
| Jitter | Higher | Moderate | Low to moderate |
6. Deployment and Construction
Deployment complexity and construction requirements differ between the two architectures, though both are less disruptive than full FTTH.
6.1 FTTN Deployment
FTTN deployment requires fiber to be pulled from the central office or a fiber aggregation point to each remote node. The number of nodes is relatively small compared with the number of cabinets or buildings, so the fiber deployment cost is lower than FTTC or FTTB.
The node itself must be installed or upgraded. This involves civil works to prepare the node foundation or pole mounting, installation of the enclosure, and installation of the DSLAM and its power and cooling systems. Each node serves 500 to 2,000 premises, so the number of nodes required is relatively small.
The copper network from the node to the premises is left in place. No work is required inside the buildings, and the subscriber can self-install the VDSL or ADSL modem by connecting it to the existing telephone outlet.
6.2 FTTC Deployment
FTTC deployment requires fiber to be pulled to each street cabinet. This is more extensive than FTTN because the fiber must reach more locations—every cabinet rather than every node. In areas with many cabinets, the number of fiber drops can be significant, increasing the cost and complexity of deployment.
The cabinet itself must be installed or upgraded. This involves civil works to prepare the cabinet foundation, installation of the cabinet enclosure, and installation of the DSLAM or DPU and its power and cooling systems. Each cabinet serves 100 to 300 premises, so more cabinets are required than nodes in an FTTN deployment.
| Parameter | FTTN | FTTC |
|---|---|---|
| Fiber Reach | To each remote node | To each street cabinet |
| Number of Fiber Terminations | Fewer (nodes) | More (cabinets) |
| Premises per Location | 500–2,000 | 100–300 |
| Civil Works | Node foundation or pole mount | Cabinet foundation, duct access |
| In-Building Work | None | None |
| Unit Entry Required | No | No |
| Subscriber Self-Install | Yes | Yes |
| Deployment Complexity | Lower | Higher (more locations) |
7. Power and Cabinet Requirements
Both FTTN and FTTC require powered equipment in the field, but the location and power requirements differ.
7.1 FTTN Power Requirements
FTTN nodes contain active electronics—the DSLAM—that require electrical power. The node must be connected to the local electricity network, and it typically includes battery backup to maintain service during power outages. The power consumption of a node depends on the number of subscribers served and the technology used: a VDSL2 node serving 1,000 premises may consume 300 to 800 watts.
The node also requires cooling to maintain the equipment within its operating temperature range. Passive cooling is often used, but in hot climates, active cooling (fans) may be required, adding to the power consumption and maintenance requirements.
7.2 FTTC Power Requirements
FTTC cabinets contain active electronics—the DSLAM or G.fast DPU—that require electrical power. The cabinet must be connected to the local electricity network, and it typically includes battery backup. The power consumption of a cabinet depends on the number of subscribers served and the technology used: a VDSL2 cabinet serving 200 premises may consume 100 to 300 watts, while a G.fast cabinet may consume more.
The cabinet also requires cooling. Passive cooling is often used, but in hot climates, active cooling may be required, adding to the power consumption and maintenance requirements.
| Parameter | FTTN | FTTC |
|---|---|---|
| Equipment Location | Remote node / pedestal | Street cabinet |
| Power Source | Local electricity network | Local electricity network |
| Battery Backup | Required | Required |
| Power Consumption | 300–800 W per node | 100–300 W per cabinet |
| Cooling | Passive or active | Passive or active |
| Environmental Protection | Weatherproof enclosure | Weatherproof cabinet |
| Number of Sites | Fewer | More |
8. Cost Comparison
The cost structure differs between FTTN and FTTC, with FTTN having lower fiber deployment costs but potentially higher equipment costs per subscriber, and FTTC having higher fiber deployment costs but better performance.
8.1 FTTN Cost
FTTN cost includes the fiber from the central office to each node, the node itself (civil works, enclosure, power connection), the DSLAM, and the ongoing power and maintenance costs. The fiber cost is amortized over the 500 to 2,000 premises served by each node, so the per-premises fiber cost is very low. The node cost, however, is concentrated at each node location, and the civil works for node installation can be significant.
8.2 FTTC Cost
FTTC cost includes the fiber from the central office to each cabinet, the cabinet itself (civil works, enclosure, power connection), the DSLAM or DPU, and the ongoing power and maintenance costs. The fiber cost is amortized over the 100 to 300 premises served by each cabinet, so the per-premises fiber cost is higher than FTTN. The cabinet cost is lower than the node cost in FTTN, because the cabinet is smaller and serves fewer premises.
The equipment cost per premises is higher in FTTC than FTTN, because the cabinet serves fewer premises and the equipment cost is spread over fewer subscribers. However, the higher performance of FTTC may justify the higher cost in competitive markets.
| Cost Element | FTTN | FTTC |
|---|---|---|
| Fiber Deployment | Lower (fewer nodes) | Higher (more cabinets) |
| Node / Cabinet Enclosure | Higher per location | Lower per location |
| Number of Locations | Fewer | More |
| Equipment Cost per Premises | Lower (more subscribers per node) | Higher (fewer subscribers per cabinet) |
| Power and Cooling | Higher per location | Lower per location |
| Per-Premises Cost | Lower | Higher |
| Maintenance | Fewer sites, higher cost per site | More sites, lower cost per site |
9. Application Scenarios
The choice between FTTN and FTTC depends on the deployment environment, the existing infrastructure, and the bandwidth requirements.
9.1 FTTN Application Scenarios
Low-density rural and suburban areas: Where the cost of pulling fiber to each cabinet is high, and the subscriber density is low.
Initial fiber deployment: FTTN can be deployed as a first step to extend fiber into the access network, with later upgrades to FTTC or FTTH.
Markets with limited competition: Where subscribers have few alternatives and moderate speeds are acceptable.
Areas with existing node infrastructure: Where nodes are already in place and can be upgraded with fiber and DSLAM equipment.
Transitional deployments: FTTN can be deployed as an intermediate step while FTTC or FTTH is planned and funded.
9.2 FTTC Application Scenarios
Dense suburban and urban areas: Where the cost of pulling fiber to each cabinet is manageable and the subscriber density is high.
Areas with existing cabinet infrastructure: Where cabinets are already in place and can be upgraded with fiber and DSLAM/DPU equipment.
Higher-bandwidth requirements: Where subscribers need 50–100 Mbps, which FTTN cannot deliver over long copper loops.
Competitive markets: Where subscribers demand higher speeds and the operator needs to differentiate from FTTN-based competitors.
Transitional deployments to FTTH: FTTC can be deployed as an intermediate step while FTTH is planned and funded.
| Scenario | Recommended Approach | Rationale |
|---|---|---|
| Low-density rural area | FTTN | Lower fiber deployment cost; moderate bandwidth sufficient |
| Dense suburban area | FTTC | Fiber can reach each cabinet at manageable cost; higher bandwidth |
| Urban area with existing cabinets | FTTC | Leverage existing cabinet infrastructure; higher bandwidth |
| Initial fiber deployment | FTTN | Lowest cost to extend fiber into the access network |
| Competitive market with high bandwidth demand | FTTC or FTTH | FTTN cannot deliver the required bandwidth |
| Transitional deployment to FTTH | FTTC | Closer to FTTH; easier migration path |
10. Migration to FTTH
Both FTTN and FTTC are intermediate architectures on the path to full FTTH. The migration path differs depending on the starting point.
10.1 FTTN to FTTH Migration
Migrating from FTTN to FTTH is the most extensive migration. It requires extending the fiber from the node to each cabinet (if FTTC is an intermediate step) or directly to each premises. In many cases, the fiber must be pulled through the existing copper ducts or along the same poles that carry the copper network.
The migration is typically phased: first FTTN to FTTC, then FTTC to FTTH. This allows the operator to spread the cost over time and to generate revenue from the intermediate steps.
10.2 FTTC to FTTH Migration
Migrating from FTTC to FTTH requires extending the fiber from the street cabinet to each premises. This involves installing fiber from the cabinet to each building, and then from the building entry to each unit. In many cases, the fiber can be routed through the same ducts or poles that carry the copper network.
The migration is phased: as fiber reaches each building, subscribers can be migrated from VDSL/G.fast to FTTH. The copper network is progressively retired as subscribers migrate.
| Migration Aspect | FTTN to FTTH | FTTC to FTTH |
|---|---|---|
| Fiber Extension Required | Node to each premises (via cabinet or direct) | Cabinet to each premises |
| Intermediate Step | FTTC is a common intermediate step | Direct to FTTH |
| Copper Retirement | Node to premises copper retired | Cabinet to premises copper retired |
| Phasing | Node to cabinet, then cabinet to premises | Building by building |
| Cost | Higher (more fiber to each premises) | Lower (fiber only from cabinet) |
11. Comparison Summary
| Dimension | FTTN | FTTC |
|---|---|---|
| Fiber Termination Point | Remote node / pedestal | Street cabinet |
| Copper Loop Length | 1,000–3,000 m | 100–500 m |
| Premises per Location | 500–2,000 | 100–300 |
| Typical Downstream (VDSL2) | 10–30 Mbps | 40–100 Mbps |
| Typical Upstream (VDSL2) | 1–5 Mbps | 5–20 Mbps |
| Typical Downstream (G.fast) | Not viable | 150–500 Mbps |
| Round-Trip Latency | 20–40 ms | 10–25 ms |
| Equipment Location | Remote node | Street cabinet |
| Power Consumption | 300–800 W per node | 100–300 W per cabinet |
| Fiber Deployment Cost | Lower (fewer locations) | Higher (more locations) |
| Per-Premises Cost | Lower | Higher |
| Upgrade Path to FTTH | Longer (via FTTC or direct) | Shorter (cabinet to premises) |
| Best For | Low-density areas, initial fiber deployment | Dense areas, higher bandwidth requirements |
12. Selection Framework
| Evaluation Factor | Recommendation |
|---|---|
| Subscriber density | Low density: FTTN. High density: FTTC. |
| Bandwidth requirement | 10–30 Mbps: FTTN. 50–100 Mbps: FTTC. |
| Latency requirement | Relaxed: FTTN. Moderate: FTTC. |
| Copper loop length | >1,000 m: FTTN limited to lower speeds.<500 m:="" fttc="" enables="" higher="" speeds.=""> |
| Existing infrastructure | Existing nodes: FTTN. Existing cabinets: FTTC. |
| Deployment cost | Lower per-premises: FTTN. Higher but better performance: FTTC. |
| Power availability | Node power available: FTTN. Cabinet power available: FTTC. |
| Upgrade path to FTTH | FTTC is closer to FTTH (shorter final copper segment) |
| Competitive environment | Low competition: FTTN may suffice. High competition: FTTC or FTTH. |
13. Emerging Trends
13.1 G.fast Extends FTTC Life
G.fast has extended the life of FTTC by providing higher bandwidth over shorter copper loops. In an FTTC configuration, G.fast delivers 150 to 500 Mbps, which is competitive with early FTTH offerings. G.fast is not viable in FTTN configurations because the copper loop is too long; the technology requires loops of 300 meters or less.
13.2 Vectoring and Crosstalk Cancellation
Vectoring technology cancels crosstalk between copper pairs in the same binder, allowing higher frequencies and greater bandwidth. Vectoring is essential for G.fast deployment, where crosstalk would otherwise limit performance. It is used in FTTC deployments, but it is less effective in FTTN because the longer copper loops have higher inherent attenuation and crosstalk.
13.3 FTTH as the End State
Both FTTN and FTTC are increasingly seen as transitional architectures. As bandwidth demand continues to grow—driven by 4K/8K video, cloud gaming, remote work, and smart home applications—the limitations of copper become increasingly apparent. FTTH, with its dedicated optical path and symmetric multi-gigabit capability, is the end state that operators are migrating toward. FTTN and FTTC serve as intermediate steps that allow operators to generate revenue and defer the full cost of FTTH deployment.
13.4 Copper Retirement
As FTTH deployment accelerates, operators are beginning to retire their copper networks. In some markets, copper retirement is driven by the cost of maintaining the aging copper plant; in others, it is driven by regulatory pressure to provide universal high-speed access. The retirement of copper will eventually make FTTN and FTTC obsolete, but the timeline varies by market and is measured in years or decades.
13.5 Regulatory Pressure for Higher Speeds
Regulators in many countries are raising the definition of "broadband" to 100 Mbps or higher, and some are setting targets for gigabit connectivity. FTTN, with its 10–30 Mbps capability, cannot meet these targets. FTTC, with 50–100 Mbps, can meet current targets but will struggle as targets rise. This regulatory pressure is accelerating the migration from FTTN to FTTC and from FTTC to FTTH.
14. Conclusion
FTTN and FTTC are two hybrid fiber-copper access architectures that differ in how deeply the fiber penetrates the access network. FTTN terminates the fiber at a remote node serving 500 to 2,000 premises, leaving 1,000 to 3,000 meters of copper to reach each subscriber. FTTC terminates the fiber at a street cabinet serving 100 to 300 premises, leaving only 100 to 500 meters of copper to reach each subscriber.
The shorter copper loop of FTTC enables significantly higher bandwidth—40 to 100 Mbps with VDSL2 and 150 to 500 Mbps with G.fast, compared with 10 to 30 Mbps for FTTN with VDSL2. FTTC also offers lower latency and better performance consistency. However, FTTC requires fiber to be pulled to each cabinet, which is more expensive and time-consuming than pulling fiber to a smaller number of nodes.
The choice between FTTN and FTTC depends on the deployment environment. FTTN is more cost-effective in low-density areas where the cost of pulling fiber to each cabinet is high and the subscriber density is low. FTTC is more cost-effective in dense suburban and urban areas, where the fiber can reach many subscribers with a single cabinet connection and where the shorter copper loop enables higher bandwidth.
Both architectures are transitional. As bandwidth demand grows and FTTH deployment accelerates, both FTTN and FTTC will eventually be replaced by full fiber-to-the-home. But in the interim, they provide a pragmatic path to higher bandwidth at lower cost, leveraging existing copper infrastructure while the fiber network is extended deeper into the access network.
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