Network Switches, PoE Injectors & Surveillance Infrastructure

Plan Your Deployment

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-GLC-SX-MM-2K

Transition Networks TN-GLC-SX-MM-2K 1000BASE-SX SFP Module

1 Gbps multimode fiber SFP for managed switches up to 550m
- 1000BASE-SX over 50/125 µm or 62.5/125 µm multimode fiber with LC
- Hot-swappable SFP module integrates into GLC-compatible switch slots
- Industrial temperature range rated for network closets and outdoor cabinets
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$74.20 $56.99 Save $17.21

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Transition Networks

SKU: TN-GLC-SX-MM-2K-RGD

Transition Networks TN-GLC-SX-MM-2K-RGD Gigabit SFP Transceiver

Gigabit multimode SFP for fiber runs up to 2 km, industrial temp
- 1000BASE-SX gigabit speed on 50/125 µm or 62.5/125 µm multimode fiber
- LC connector, standard SFP form factor, plug-and-play with no config needed
- Operates across industrial temperature range for outdoor and uncontrolled sites
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$84.80 $65.99 Save $18.81

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Transition Networks

SKU: TN-GLC-SX-MM-PK

Transition Networks TN-GLC-SX-MM-PK Gigabit SFP Transceiver

Gigabit SFP multimode transceiver for managed switches, industrial temps
- 1 Gbps multimode fiber connectivity with hot-swappable LC duplex connector
- Industrial temperature range rated for stable rack-mount and field deployments
- SFP form factor compatible with standard managed switch equipment
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$888.99 $849.99 Save $39.00

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Transition Networks

SKU: TN-GLC-SX-MM-RGD

Transition Networks TN-GLC-SX-MM-RGD Gigabit SFP Module

Gigabit multi-mode SFP for managed switches in industrial temps
- 1000BASE-SX over multi-mode fiber up to 2 km with LC connectors
- Industrial temperature range tolerates unheated cabinets and outdoor gear
- Hot-pluggable SFP slots into switches without power-down or downtime
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$33.99 $30.99 Save $3.00

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Transition Networks

SKU: TN-GLC-SX-MMD

Transition Networks TN-GLC-SX-MMD SFP Gigabit Transceiver

Gigabit multimode SFP transceiver for campus fiber runs up to 1800 feet
- 1000Base-SX standard with LC duplex connector; hot-swap into any SFP port
- Reaches 1800 feet (550 m) on multimode fiber for building-to-building links
- No configuration needed; plug in and connect—works with any SFP-compatible switch
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$44.99

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Transition Networks

SKU: TN-GLC-T

Transition Networks TN-GLC-T SFP Gigabit Ethernet Transceiver

Gigabit copper SFP transceiver, hot-swappable, 100m reach
- 1000 Mbps speed over standard Cat5e/Cat6 cabling
- Hot-pluggable SFP form factor installs without powering down
- Industrial-grade multimode design for warehouse and surveillance networks
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$54.99 $48.99 Save $6.00

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Transition Networks

SKU: TN-GLC-T-MG

Transition Networks TN-GLC-T-MG SFP Media Converter 10/100/1000

Gigabit copper-to-fiber converter with galvanic isolation for industrial environments
- 10/100/1000Base-T copper interface at full Gigabit speed, no bottlenecking
- SFP slot accepts any standard fiber transceiver for flexible fiber type selection
- Galvanic isolation eliminates ground loops in mixed copper-fiber deployments
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$94.12 $72.99 Save $21.13

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Transition Networks

SKU: TN-GLC-ZX-SM

Transition Networks TN-GLC-ZX-SM Single Mode SFP Transceiver

Single mode SFP for gigabit ethernet over extended fiber runs
- 1 Gbps throughput on single mode fiber up to 80 km distance
- 1550 nm wavelength SFP module fits standard switch ports
- IEC-60825 and FDA 21 certified for safe fiber deployment
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$337.99 $312.99 Save $25.00

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Transition Networks

SKU: TN-J4858C

Transition Networks TN-J4858C SFP Transceiver Module

Gigabit SFP transceiver for single-mode fiber long-distance runs
- Single-mode fiber SFP module for gigabit Ethernet media conversion
- DIN-rail compatible form factor integrates into network infrastructure
- IEC-60825 and FDA 21 CFR certified for secure optical transmission
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Transition Networks

SKU: TN-J4859C

Transition Networks TN-J4859C SFP Transceiver Module

1 GbE SFP transceiver for 12.4-mile single-mode fiber runs
- 1000Base-LX at 1310 nm wavelength over single-mode fiber
- Plugs into standard SFP (mini-GBIC) ports, no external power needed
- Compact form factor for space-constrained network deployments
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Transition Networks

SKU: TN-J4860C

Transition Networks TN-J4860C SFP Transceiver Module

Single-mode SFP transceiver for 20km gigabit fiber links
- Hot-swappable SFP module with 20km extended reach over single-mode fiber
- Compatible with Transition Networks media converters and standard SFP slots
- DIN rail mount option for telecom, security, and remote site deployments
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Transition Networks

SKU: TN-J9150A

Transition Networks TN-J9150A SFP+ Transceiver Module

Gigabit SFP+ single-mode transceiver for DIN rail media converters
- Single-mode fiber reaches up to 300m for extended backbone runs
- DIN rail mount fits compact enclosures and field deployments
- Gigabit speed with 500 MHz-km bandwidth at 850nm wavelength
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Transition Networks

SKU: TN-J9151A

Transition Networks TN-J9151A SFP+ 10GBASE-LR Transceiver

SFP+ 10GBASE-LR transceiver for long-range single-mode fiber
- 10 Gbps data rate over up to 10 km single-mode fiber runs
- Hot-swappable module with 1310 nm wavelength for campus networks
- Compatible with standard SFP+ ports on switches and routers
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$278.99 $248.99 Save $30.00

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Transition Networks

SKU: TN-QSFP-40G-LR4

Transition Networks TN-QSFP-40G-LR4 40G Qsfp+ Module

40G QSFP+ transceiver for long-range fiber switching
- 40 Gigabit Ethernet over extended fiber distances via 40G BASE-LR4
- LC duplex connector integrates with compatible QSFP+ switches
- Hot-swappable module for enterprise and data center deployments
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$1,318.99 $1,178.99 Save $140.00

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Transition Networks

SKU: TN-QSFP-40G-SR4

Transition Networks TN-QSFP-40G-SR4 40G QSFP+ Transceiver

40G QSFP+ transceiver for multimode fiber up to 150 meters
- 40 Gigabit Ethernet over 850nm multimode fiber with MPO connectors
- Reaches 150 meters on OM3/OM4 multimode cabling for data center links
- 40GBase-SR4 standard for QSFP+-equipped switches and network interfaces
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Transition Networks

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

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

10G single-mode SFP for long-distance managed network backbones
- 10 Gigabit Ethernet speed over single-mode fiber for extended distances
- SFP module form factor integrates into standard managed switch slots
- Long-distance backbone connectivity for campus and carrier deployments
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$409.99 $365.99 Save $44.00

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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-GLC-SX-MM-2K 1000BASE-SX SFP Module

Transition Networks TN-GLC-SX-MM-2K-RGD Gigabit SFP Transceiver

Transition Networks TN-GLC-SX-MM-PK Gigabit SFP Transceiver

Transition Networks TN-GLC-SX-MM-RGD Gigabit SFP Module

Transition Networks TN-GLC-SX-MMD SFP Gigabit Transceiver

Transition Networks TN-GLC-T SFP Gigabit Ethernet Transceiver

Transition Networks TN-GLC-T-MG SFP Media Converter 10/100/1000

Transition Networks TN-GLC-ZX-SM Single Mode SFP Transceiver

Transition Networks TN-J4858C SFP Transceiver Module

Transition Networks TN-J4859C SFP Transceiver Module

Transition Networks TN-J4860C SFP Transceiver Module

Transition Networks TN-J9150A SFP+ Transceiver Module

Transition Networks TN-J9151A SFP+ 10GBASE-LR Transceiver

Transition Networks TN-QSFP-40G-LR4 40G Qsfp+ Module

Transition Networks TN-QSFP-40G-SR4 40G QSFP+ Transceiver

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

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