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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Comnet

SKU: NWKBB200

Comnet NWKBB200 11-Port Gigabit Unmanaged Switch

11-port Gigabit unmanaged switch with DIN rail mount for plug-and-play security networks
- 11 Gigabit ports handle simultaneous multi-camera video feeds and access control data
- Zero configuration required—power up and connect without firmware or VLAN setup
- DIN rail mountable fanless design fits standard electrical enclosures and control cabinets
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$10,983.00 $6,829.99 Save $4,153.01

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Comnet

SKU: NWKSP3

ComNet NWKSP3 11-Port Gigabit PoE Injector

11-port Gigabit PoE injector, unmanaged, DIN rail mount
- 11 Gigabit Ethernet ports with IEEE 802.3at PoE+ power injection
- Unmanaged plug-and-play operation—no configuration required
- DIN rail mountable for compact telecom closet and cabinet deployment
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$13,475.00 $9,908.99 Save $3,566.01

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Comnet

SKU: NWKSP4

ComNet NWKSP4 11-Port Gigabit PoE Injector

11-port Gigabit PoE injector, DIN rail mount, unmanaged operation
- All 11 ports deliver Gigabit speed (1000 Mbps) with PoE injection
- DIN rail mount fits standard 35mm rails in telecom and security racks
- Unmanaged plug-and-play operation requires no configuration or setup
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$15,950.00 $11,727.99 Save $4,222.01

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Comnet

SKU: NWPM1248GE

Comnet NWPM1248GE 11-Port PoE Injector

11-port unmanaged PoE injector with 328-foot range for distributed power
- 11 Gigabit Ethernet ports inject centralized power across extended cable runs
- Unmanaged plug-and-play operation—no configuration needed for fixed topologies
- DIN rail mount with industrial temperature rating for outdoor/harsh deployments
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$284.00 $182.99 Save $101.01

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Comnet

SKU: NWPM2448GE

ComNet NWPM2448GE 11-Port PoE Injector

11-port Gigabit PoE injector for industrial surveillance and access control
- 11 Gigabit ports with PoE injection across all ports for networked devices
- Unmanaged, plug-and-play design mounts directly to 35mm DIN rail
- Industrial temperature rated for reliable operation in equipment rooms and cabinets
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$366.00 $234.99 Save $131.01

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Comnet

SKU: NWPM24PPI

Comnet NWPM24PPI 11-Port Unmanaged PoE Injector

11-port Gigabit PoE injector, DIN rail mount, zero configuration
- 11 Gigabit ports distribute power to PoE cameras, access control, VoIP
- Unmanaged plug-and-play operation—no setup, VLAN tagging, or firmware updates
- DIN rail mountable for cabinet and field enclosure installations
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$164.00 $105.99 Save $58.01

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Comnet

SKU: NWPM4848GE

ComNet NWPM4848GE PoE Injector — 11-Port Gigabit DIN Rail

11-port Gigabit PoE injector with 328ft range, DIN rail mount
- 48V DC simultaneous power injection across 11 Gigabit ports
- 328-foot maximum range for large-scale facility deployments
- Unmanaged pass-through architecture; mounts on 35mm DIN rail
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$373.00 $239.99 Save $133.01

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Comnet

SKU: PIM1

Comnet PIM1 PoE Injector Module

11-port PoE injector module, 330 feet, industrial DIN rail mount
- 11 ports deliver simultaneous PoE power to IP cameras, intercoms, access control
- 330-foot range eliminates need for additional power supplies on long cable runs
- Unmanaged plug-and-play design; DIN rail mounting for security infrastructure racks
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$58.99

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Comnet

SKU: PS24AC12DC

ComNet PS24AC12DC 11-Port Unmanaged Media Converter

11-port Gigabit media converter, DIN rail mount, zero config
- 11 network ports with Gigabit speed across all connections
- Unmanaged design—plug in power and cables, no configuration needed
- DIN rail mountable for control rooms, racks, and panel installations
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$36.00 $29.99 Save $6.01

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Comnet

SKU: RJ45BK

ComNet RJ45BK Media Converter DIN Rail 2.5G

Industrial copper-to-fiber converter, 2.5G speed, DIN rail mount
- 2.5G Multi-Gigabit performance for bandwidth-intensive surveillance networks
- RJ45 to fiber conversion with EMI isolation over extended distances
- Industrial temperature rated in compact DIN rail form factor
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$91.00 $55.99 Save $35.01

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Comnet

SKU: RLGE2+1SMSPOEHO

Comnet RLGE2+1SMSPOEHO 3-Port Managed PoE Switch

3-port managed PoE switch for compact edge deployments
- 10/100 Mbps full-duplex across 3 ports with integrated PoE++
- VLAN and QoS support for traffic management in security networks
- Compact form factor consolidates powered devices at installation points
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$2,309.00 $1,310.99 Save $998.01

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Comnet

SKU: RLMCSFPPOEHO

ComNet RLMCSFPPOEHO 11-Port Gigabit DIN Rail Switch

11-port gigabit DIN rail switch for industrial field deployment
- All 11 ports deliver gigabit speeds with no management required
- DIN rail mount on standard 35 mm rail for quick installation
- Operates across full industrial temperature range for outdoor use
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$2,206.00 $1,251.99 Save $954.01

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Comnet

SKU: SFP-1

Comnet SFP-1 Single Mode SFP Transceiver Module

Single mode SFP for industrial Gigabit Ethernet fiber networks
- 100/1000BASE-FX operation with hot-swappable field-replaceable design
- Single mode fiber support for extended long-haul transmission distances
- Industrial temperature rated; TAA & NDAA compliant for government use
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$298.00 $191.99 Save $106.01

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Comnet

SKU: SFP-10A

Comnet SFP-10A Single Mode SFP Transceiver Module

10G single mode SFP module for industrial fiber networks
- 10 Gigabit speed over single mode fiber for long-distance backbone links
- Industrial temperature rating for outdoor cabinets and non-climate-controlled sites
- Hot-swappable SFP form factor compatible with standard network switches
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$343.00 $220.99 Save $122.01

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Comnet

SKU: SFP-10B

Comnet SFP-10B 10G SFP Transceiver Module

10G single-mode SFP module for Comnet switches and standard ports
- 10 Gigabit speed over single-mode fiber for extended network distances
- Hot-swappable SFP form factor installs into standard SFP ports without downtime
- Unmanaged operation requires no configuration for straightforward fiber uplinks
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Comnet

SKU: SFP-10G-LR

Comnet SFP-10G-LR 10G Single Mode SFP Transceiver

10G single-mode SFP+ transceiver for long-distance fiber runs
- 10 Gigabit speed over single-mode fiber up to 10 km distance
- Industrial-grade operating temperature for field and outdoor deployment
- Standard SFP+ port compatibility with enterprise switches and routers
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$120.00 $92.99 Save $27.01

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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

Comnet NWKBB200 11-Port Gigabit Unmanaged Switch

ComNet NWKSP3 11-Port Gigabit PoE Injector

ComNet NWKSP4 11-Port Gigabit PoE Injector

Comnet NWPM1248GE 11-Port PoE Injector

ComNet NWPM2448GE 11-Port PoE Injector

Comnet NWPM24PPI 11-Port Unmanaged PoE Injector

ComNet NWPM4848GE PoE Injector — 11-Port Gigabit DIN Rail

Comnet PIM1 PoE Injector Module

ComNet PS24AC12DC 11-Port Unmanaged Media Converter

ComNet RJ45BK Media Converter DIN Rail 2.5G

Comnet RLGE2+1SMSPOEHO 3-Port Managed PoE Switch

ComNet RLMCSFPPOEHO 11-Port Gigabit DIN Rail Switch

Comnet SFP-1 Single Mode SFP Transceiver Module

Comnet SFP-10A Single Mode SFP Transceiver Module

Comnet SFP-10B 10G SFP Transceiver Module

Comnet SFP-10G-LR 10G Single Mode SFP Transceiver

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