Network Switches, PoE Injectors & Surveillance Infrastructure

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Total PoE power budget and port density requirements
Switch throughput and uplink capacity planning
Redundancy and failover design considerations
Distance limitations and fiber conversion needs
Power conditioning and voltage compatibility

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Transition Networks

SKU: TN-SFP-10G-D-20

Transition Networks TN-SFP-10G-D-20 10G Single Mode Sfp

10G single mode SFP for enterprise backbone and carrier networks
- 10 Gigabit speed over single mode fiber for long-distance connectivity
- Hot-swappable SFP form factor integrates into managed switch slots
- Extended transmission range supports carrier-grade inter-switch backhaul
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Transition Networks

SKU: TN-SFP-10G-ER

Transition Networks TN-SFP-10G-ER 10G SFP+ Transceiver Module

10G SFP+ module with 40km extended-range single-mode fiber reach
- 10.3 Gbps data rate on hot-swappable form factor for live port upgrades
- Single-mode fiber spans up to 40km for long-distance backbone connectivity
- Compatible with Transition Networks switches and standard SFP+ equipment
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Transition Networks

SKU: TN-SFP-10G-LR

Transition Networks TN-SFP-10G-LR 10GBASE-LR Sfp+ Module

10G single-mode SFP+ module for 10 km metro and data center links
- 10 Gbps over single-mode fiber with 10 km reach for backbone connectivity
- Digital Monitoring Interface tracks real-time optical performance and health
- Compatible with Cisco, Arista, Juniper, and HPE switches via standard SFP+ slot
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Transition Networks

SKU: TN-SFP-10G-LRM

Transition Networks TN-SFP-10G-LRM SFP+ Transceiver Module

10 Gbps multimode SFP+ transceiver for managed switches up to 220m
- 10GBase-LRM standard supports extended reach on multimode fiber
- SFP+ module integrates into managed switch environments for 10G connectivity
- Multimode fiber design optimized for enterprise infrastructure deployments
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Transition Networks

SKU: TN-SFP-10G-SR

Transition Networks TN-SFP-10G-SR 10G Multi-Mode SFP+ Module

10G SFP+ module for multi-mode fiber up to 300–400m
- 10 Gbps line rate over 850nm multi-mode (OM3/OM4) fiber
- Hot-swappable SFP+ form factor for live insertion without downtime
- Supports standard enterprise fiber plant; no single-mode recabling needed
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Transition Networks

SKU: TN-SFP-10G-T

Transition Networks TN-SFP-10G-T 10GBase-T SFP+ Transceiver Module

10 Gbps copper SFP+ module for existing switch infrastructure
- 10GBase-T over RJ-45 copper cabling up to 18.6 miles
- Hot-swappable SFP+ form factor expands ports without switch replacement
- TAA-compliant module leverages existing patch panels and infrastructure
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Transition Networks

SKU: TN-SFP-10G-U-10

Transition Networks TN-SFP-10G-U-10 10G Single Mode SFP Module

10G single-mode SFP for managed switch long-distance fiber links
- 10 Gigabit data rate over single-mode fiber for carrier-class backbone reach
- SFP module form factor integrates into compatible managed switch ports
- Long-distance transmission support for enterprise and telecom infrastructure
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Transition Networks

SKU: TN-SFP-10G-U-20

Transition Networks TN-SFP-10G-U-20 10G SFP Module Single Mode

10G single-mode SFP for long-distance managed switching
- 10 Gigabit data rate with LC connectors for enterprise networks
- Single-mode fiber supports long-distance optical transmission runs
- Hot-swappable design integrates into compatible 10G switch ports
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Transition Networks

SKU: TN-SFP-10G-ZR

Transition Networks TN-SFP-10G-ZR 10G SFP+ Transceiver Module

10G single-mode fiber transceiver for long-range backbone links
- 10 Gbps over single-mode fiber up to 300m with LC duplex connectors
- Hot-swappable SFP+ form factor installs into compatible switch ports
- Passive module with no external power needed for extended campus runs
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Transition Networks

SKU: TN-SFP-10G-ZR-10

Transition Networks TN-SFP-10G-ZR-10 10G SFP+ Transceiver Module

10G SFP+ transceiver for 80 km single-mode fiber runs
- 10 Gbps data rate over 10GBase-ZR single-mode fiber
- Hot-swappable LC duplex connector fits standard SFP+ slots
- Reaches 80 km maximum distance for long-haul network spans
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Transition Networks

SKU: TN-SFP-25G-SR-S

Transition Networks TN-SFP-25G-SR-S SFP28 10G Multimode

10G multimode SFP28 transceiver for short-reach datacenter links
- 10G data rate over 850nm multimode fiber with LC connectors
- Reaches 300 meters on standard multimode cabling
- Cisco-compatible for direct integration into switch ports
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Transition Networks

SKU: TN-SFP-ELX1

Transition Networks TN-SFP-ELX1 SFP LX Gigabit Transceiver

Single-mode SFP transceiver for 1.25 Gbps Ethernet up to 10 km
- 1.25 Gigabit Ethernet over single-mode fiber to 10 km distance
- SFP mini-GBIC form factor fits standard ports on switches and routers
- Plug-and-play installation into any compatible SFP slot, no configuration
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Transition Networks

SKU: TN-SFP-ELX1-PK

Transition Networks TN-SFP-ELX1-PK SFP Gigabit Single Mode

Gigabit SFP transceiver for extended single mode fiber runs
- 1.25 Gbps Ethernet over single mode fiber with extended reach
- LC connector, hot-swappable SFP form factor for standard equipment
- 1550 nm wavelength optimized for long-distance campus and inter-site links
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Transition Networks

SKU: TN-SFP-ESX5

Transition Networks TN-SFP-ESX5 SFP Gigabit Multimode Transceiver

Gigabit multimode SFP transceiver for 2km fiber reach at 1300nm
- 1.25 Gbps Gigabit speed over multimode fiber to 2km distance
- Hot-swappable SFP form factor fits standard Gigabit switch ports
- 1300nm wavelength optimized for multimode cabling installations
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Transition Networks

SKU: TN-SFP-GE-100FX

Transition Networks TN-SFP-GE-100FX 100Base-FX SFP Transceiver

100Base-FX SFP transceiver for fiber Ethernet on switches and routers
- Hot-swappable SFP module installs without powering down host equipment
- 100 Mbps over multimode or single-mode fiber with no external power needed
- Compact form factor adds fiber ports to standards-compliant SFP-capable devices
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Transition Networks

SKU: TN-SFP-GE-L

Transition Networks TN-SFP-GE-L Single Mode SFP Gigabit Transceiver

Single-mode SFP for gigabit backbone links up to 10 km
- LC duplex connectors with hot-swap design for field swaps
- Single-mode fiber spans 10 km without signal regeneration
- Passive operation draws under 1W from SFP slot
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$46.99

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What to Look For When Buying

The six decisions that matter most before you spec.

PoE Power Budget Math

A 24-port PoE+ switch with 370W total budget can't actually run 24 outdoor cameras at peak 25W each. Simultaneous peak — not nameplate — is the limit. Always verify per-port PoE allocation and total budget against actual camera load. See PoE budget planning and why your PoE switch fails after 18 cameras.

328-Foot Ethernet Limit

Cat5e, Cat6, and Cat6A all top out at 100 meters (328ft) per TIA-568. Past that, you need a media converter to fiber, a PoE extender, or an intermediate switch. Common gotcha: in-wall patch + faceplate + drop + jumper all count against 328ft. Long runs to perimeter cameras frequently exceed the limit — plan for fiber or coax-PoE extension.

Managed vs Unmanaged Switches

Unmanaged switches work for small deployments but provide no VLAN segmentation, no QoS for video traffic, no monitoring, and no remote troubleshooting. Managed switches (Layer 2 or Layer 3) let you isolate cameras on a dedicated VLAN, prioritize video over office traffic, and diagnose link failures from a central SNMP platform. Spec managed for any deployment over 8 cameras.

UPS Sizing & Runtime

NVR + switches + cameras + access control have very different power profiles than office gear. Size UPS for actual wattage of all connected loads + 20% headroom, and calculate runtime with battery-life curves (runtime is non-linear — doubling load often cuts runtime 60%+). Surveillance UPS should provide 15-30 min to accommodate generator transfer or graceful shutdown.

Copper vs Fiber Uplinks

In-rack uplinks on 10G copper (Cat6A) work fine for short runs. Between-building and multi-floor uplinks should be fiber — single-mode for >300m, multimode for under. Fiber is also electrically isolated, which matters in lightning-prone environments. Axis, Hanwha, and Ubiquiti switches include SFP/SFP+ uplinks across most models.

Cooling & Airflow in Racks

Surveillance gear runs 24/7 — a closed rack at 90°F interior temperature will fail drives and switches faster than spec. Specify perforated doors, rack-mount fans, and leave 1U of airflow gap above/below heat-generating equipment. NVRs with internal fans need front-to-back airflow; network switches vary by vendor. Check thermal spec before sealing a wall-mount enclosure.

Technology Stack

The specs and acronyms that actually affect outdoor performance.

802.3af / at / bt PoE Standards

802.3af = 15.4W/port (entry cameras), 802.3at PoE+ = 25.5W/port (most outdoor cameras), 802.3bt PoE++ Type 3 = 60W, Type 4 = 90W (PTZ, heated, multi-sensor). Specify switch support for the highest standard your cameras need — future-proofing with PoE++ switches costs marginally more.

TIA-568 Cabling Standards

Cat5e rated to 1 Gbps at 100m. Cat6 rated to 10 Gbps at 55m, 1 Gbps at 100m. Cat6A rated to 10 Gbps at 100m with proper grounding. Use Cat6A for new surveillance cabling runs — marginal cost premium over Cat6, meaningful margin for long runs + high PoE.

SFP / SFP+ / QSFP+ Modules

Small Form-factor Pluggable optics for fiber uplinks. SFP = 1 Gbps, SFP+ = 10 Gbps, QSFP+ = 40 Gbps. Match module to switch vendor compatibility (some vendors lock to their own brand of optics). Multimode fiber with OM3/OM4 for ≤300m, single-mode for longer or future-proof runs.

VLAN Segmentation

Dedicated VLAN for surveillance isolates camera traffic from office network — improves security (camera-to-camera lateral movement blocked), performance (no contention with office traffic), and troubleshooting. Configure access-control and intercom VLANs separately. Managed switches required; unmanaged switches cannot segment.

Long-Reach PoE Extension

Ethernet-over-Coax (EoC) extends Ethernet + PoE to 1,500+ feet over existing RG59 coax — ideal for analog-to-IP retrofits. Ethernet-over-UTP extenders push runs to 4,000ft over CAT cable. NVT Phybridge CHARIoT, Altronix eBridge, and Veracity Highwire are the common product families. Rate-limited to 100 Mbps typically.

UPS Topology: Line-Interactive vs Double-Conversion

Line-interactive UPS switch to battery on power failure — sufficient for office gear. Double-conversion (online) UPS convert AC→DC→AC continuously, providing perfectly conditioned power — required for sensitive SCADA/security gear in dirty-power environments. Specify double-conversion for NVRs at critical sites.

Typical Deployment Scenarios

8-Camera Single-Site Retrofit

Existing network + 8 outdoor IP cameras. Add a 16-port managed PoE+ switch (Ubiquiti UniFi, Axis T85) on a dedicated VLAN. 1U rack UPS for the NVR + switch. 120-160 watts total PoE budget comfortably runs 8 outdoor cameras with heater + IR.

48-Camera Campus Upgrade

Four buildings, 48 cameras total, existing fiber backbone. Per-building 24-port PoE++ switch with SFP+ fiber uplink to core. Dedicated surveillance VLAN, QoS for video traffic, SNMP monitoring. 2-post relay rack in each IDF closet with dedicated surveillance UPS.

Perimeter Fence Line (1,200ft)

6 bullet cameras + 2 PTZs along perimeter fence, main NVR in building. Fiber media converter + outdoor-rated fiber to a PoE++ switch in a weatherproof enclosure at the fence line. Alternative: NVT Phybridge CHARIoT over existing coax for retrofit applications.

Multi-Floor Office Tower

Stacked IDFs on every floor, cameras + access control + intercom on dedicated VLANs. Cisco Catalyst or Ubiquiti UniFi Pro managed switches per floor with 10G fiber uplink to building core. Per-IDF 3U UPS. Integration with VMS and access control head-end at main BDF.

Frequently Asked Questions

How do I calculate PoE budget for a camera deployment?

Sum the peak wattage of every camera (not nameplate — check spec sheet for "PoE class" or "max consumption"). Add 15-20% headroom for inrush during cold-start. The result is your required simultaneous-peak PoE budget. A 24-port PoE+ switch advertised at 370W can only run about 18 outdoor cameras with heaters + IR — see PoE budget planning.

What's the maximum Ethernet cable run for an IP camera?

100 meters (328 feet) per TIA-568 — total distance from switch port to camera port. That includes in-rack patch cords, in-wall cabling, faceplate jack, and camera jumper. For longer runs, use fiber with a media converter or a long-reach PoE extender. Going past 328ft on copper causes intermittent packet loss that looks like camera problems.

Do I need managed or unmanaged PoE switches?

For more than 8 cameras or any mixed-use network (cameras sharing infrastructure with office traffic), specify managed. VLAN segmentation isolates camera traffic for security and performance; QoS ensures video gets bandwidth priority; SNMP monitoring surfaces failures before users call. Unmanaged switches are acceptable only for small standalone deployments.

What UPS runtime should I plan for an NVR + switch?

15-30 minutes of runtime at actual load is typical — enough to ride through brief outages or allow graceful shutdown before battery exhaustion. For sites with generator transfer, 5-10 minutes is sufficient. Size UPS wattage for actual connected load + 20%, and use the vendor's runtime-at-load curve (runtime is non-linear). Double-conversion UPS for sensitive or dirty-power sites.

How far can I extend PoE past 328 feet?

Ethernet-over-Coax extenders (NVT Phybridge CHARIoT, Altronix eBridge) push Ethernet + PoE to 1,500+ feet over existing RG59/RG6 coax — ideal for analog-to-IP retrofits. UTP-based extenders reach 2,000-4,000 feet on Cat cable at reduced bandwidth (typically 100 Mbps). For new runs over 328ft, fiber + PoE switch at the camera end is usually cleaner architecture.

Should I put cameras on a separate VLAN?

Yes — always. A dedicated camera VLAN isolates camera traffic from office network for security (blocks camera-to-camera lateral movement if one is compromised), performance (cameras don't contend with office bandwidth), and troubleshooting (camera traffic is cleanly separated for packet capture). Requires managed switches; takes 10 minutes to configure on Ubiquiti UniFi, Cisco Catalyst, or any enterprise switch.

Infrastructure

Plan Your Deployment

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Showing Results for Infrastructure

Transition Networks TN-SFP-10G-D-20 10G Single Mode Sfp

Transition Networks TN-SFP-10G-ER 10G SFP+ Transceiver Module

Transition Networks TN-SFP-10G-LR 10GBASE-LR Sfp+ Module

Transition Networks TN-SFP-10G-LRM SFP+ Transceiver Module

Transition Networks TN-SFP-10G-SR 10G Multi-Mode SFP+ Module

Transition Networks TN-SFP-10G-T 10GBase-T SFP+ Transceiver Module

Transition Networks TN-SFP-10G-U-10 10G Single Mode SFP Module

Transition Networks TN-SFP-10G-U-20 10G SFP Module Single Mode

Transition Networks TN-SFP-10G-ZR 10G SFP+ Transceiver Module

Transition Networks TN-SFP-10G-ZR-10 10G SFP+ Transceiver Module

Transition Networks TN-SFP-25G-SR-S SFP28 10G Multimode

Transition Networks TN-SFP-ELX1 SFP LX Gigabit Transceiver

Transition Networks TN-SFP-ELX1-PK SFP Gigabit Single Mode

Transition Networks TN-SFP-ESX5 SFP Gigabit Multimode Transceiver

Transition Networks TN-SFP-GE-100FX 100Base-FX SFP Transceiver

Transition Networks TN-SFP-GE-L Single Mode SFP Gigabit Transceiver

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