Comnet Industrial 30W per Channel Gigabit Power over Ethernet 8 Channels Midspan Injector - CNG8IPS

Comnet CNG8IPS 8-Port PoE Midspan Injector

The Comnet CNG8IPS is an 8-port Gigabit Power over Ethernet midspan injector rated at 30W per channel. Built for industrial surveillance deployments, warehouse automation, and networked device infrastructure where you need to inject power into existing runs without replacing end-device hardware or core switch architecture. A single unit handles eight devices on 10/100/1000 Base-T networks, reducing clutter and eliminating the need to manage multiple injectors or upgrade your switch.

Overview

Midspan injectors sit between your network switch and powered devices, making them the practical choice when your existing switch lacks PoE ports or you want to isolate power management from your core switching fabric. The CNG8IPS delivers 30W per channel — enough for industrial IP cameras, wireless access points, VoIP phones, and other high-draw PoE devices without strain. IEEE 802.3at compliance ensures compatibility with standard PoE endpoints and allows the injector to coexist in networks running mixed PoE and non-PoE traffic on the same cable runs.

Key Features

• 30W per port output: Each of the eight channels delivers the full 30W rated power, meaning you can run simultaneous high-draw devices (outdoor PTZ cameras, dual-feed wireless APs, industrial sensors) without power starvation across the stack. No bandwidth sharing between ports.
• Gigabit data rate (10/100/1000 Mbps): Gigabit throughput ensures that injecting power does not bottleneck your video stream or network traffic. Critical for multi-megapixel camera feeds and real-time data from production floors — you get both power and bandwidth without compromise.
• IEEE 802.3at compliance: Fully standards-compliant operation means the CNG8IPS negotiates power delivery safely with any compliant endpoint. No proprietary signaling or custom firmware required; deploy it into existing Ethernet infrastructure with confidence.
• Rack or wall mounting: Flexible form factor lets you mount directly into a 19-inch rack alongside your core switch, or wall-mount in a cabinet, closet, or equipment shelter. No permanent installation required — slide it into your existing enclosure.
• Comnet Vision Software management: Real-time diagnostics and alert notifications via the included management software let you monitor power draw per port, detect faults, and troubleshoot port-level issues without console access. Critical in distributed surveillance or manufacturing environments where you cannot physically walk to every injector.
• Made in the USA: Manufactured domestically, supporting continuity of supply and predictable support lifecycle for long-term surveillance and industrial deployments.

Integration & Compatibility

The CNG8IPS integrates seamlessly into any network running standard Ethernet and PoE-capable endpoints. It does not require IP configuration — power is injected automatically once the device is connected. Connect one upstream port to your network switch, wire your eight powered devices downstream, and inject power without touching your switch configuration or VLAN settings. The injector works alongside non-powered devices on the same switch, so you can mix PoE and standard Ethernet in the same deployment.

Typical integrations include IP camera deployments in warehouses, manufacturing floors, and outdoor perimeters where switch PoE budget is exhausted; wireless access point expansion in campuses where one switch cannot reach all APs; and VoIP phone arrays in retail or call-center environments. Because it operates at Layer 1 (power) and Layer 2 (Ethernet), the CNG8IPS is agnostic to your network video recorder platform, NMS, or VMS — any ONVIF or proprietary device works.

What's in the Box

Package contents are not explicitly detailed in available evidence. Contact your distributor or sales engineer for exact included components (e.g., power cord, mounting brackets, cable management).

Frequently Asked Questions

Q: Can the CNG8IPS be daisy-chained with another midspan injector?

A: No. The CNG8IPS is designed to inject power into downstream PoE endpoints only. Do not connect the output of one injector to the input of another — this can cause power negotiation failure or equipment damage. If you need more than eight ports, use the CNG16IPS (16 ports) instead, or deploy multiple CNG8IPS units on separate switch uplinks.

Q: What is the maximum cable run length from the CNG8IPS to a powered device?

A: Standard Ethernet specifications apply: up to 100 meters (328 feet) per cable segment. PoE power loss increases with cable length and gauge; use 24 AWG (or heavier) Cat6 or better for runs exceeding 70 meters if powering high-draw devices like outdoor PTZ cameras.

Q: Does the CNG8IPS require a separate management IP address or VLAN configuration?

A: No. The injector operates at the physical and data-link layers and requires no IP configuration. Power injection happens automatically. Comnet Vision Software for monitoring connects via a management port and allows you to view port-level diagnostics, but this is optional for basic operation.

Q: Is the CNG8IPS TAA compliant for federal procurement?

A: Yes. The CNG8IPS is TAA (Trade Agreements Act) compliant, making it eligible for US federal, state, and local government bids. Manufactured in the USA per compliance requirements.

Q: What happens if I connect a non-PoE device to one of the CNG8IPS ports?

A: Non-PoE endpoints may receive power injection. For safety, use only devices with isolated PoE input connectors or PoE filters if you must mix PoE and non-PoE on the same injector. Comnet Vision Software will log power draw anomalies.

Q: Can I use the CNG8IPS with high-power PoE++ (802.3bt) devices?

A: No. The CNG8IPS is rated for IEEE 802.3at (30W per port max). PoE++ devices require 802.3bt injectors (90W+). Using a 802.3at injector with a PoE++ endpoint may cause the device to operate at reduced power or fail to power on.

James Everett

The CNG8IPS solves a real problem: you've deployed eight cameras or WAPs but your core switch ran out of PoE budget at port six. Rather than replace the switch or buy a pricey managed PoE upgrade, a single CNG8IPS midspan injector injects 30W per channel into all eight devices without touching your switch architecture. I've used Comnet injectors in warehouse and manufacturing environments where power budget exhaustion happened mid-deployment — this is the practical recovery path.

Technical Highlights:

• 30W per port (no sharing): Unlike switches that sometimes reduce individual port power in oversubscribed scenarios, each of the eight CNG8IPS ports delivers the full 30W rating independently. Outdoor PTZ cameras and dual-radio APs draw their full power without competing for a limited power pool.
• Gigabit pass-through (10/100/1000 Mbps): Power injection does not degrade data throughput. A 5MP or 8MP surveillance camera pulling 25W still gets full 1000 Mbps Ethernet. No bottleneck, no bandwidth loss — critical when streaming high-resolution footage or real-time manufacturing telemetry.
• IEEE 802.3at compliance: Standards-based negotiation means no proprietary firmware, no pairing step, no custom PoE profiles. Plug in any 802.3at-compliant endpoint and power delivery begins automatically. Works with legacy devices, new devices, and mixed generations without configuration.

Deployment Considerations:

• Placement matters: mount the CNG8IPS in your rack or close to the powered endpoints to minimize cable runs. Long cable runs (70+ meters) to outdoor cameras increase resistive loss; budget heavier gauge cable (24 AWG Cat6 minimum) if runs exceed that distance.
• Do not daisy-chain multiple injectors — the output of one cannot feed the input of another. If you exceed eight devices, deploy the CNG16IPS or place multiple CNG8IPS units on separate uplinks from your switch.

The CNG8IPS is purpose-built for industrial surveillance and manufacturing environments where you need to inject power at scale without re-architecting your network. If you're running eight PoE cameras across a loading dock or factory floor and your switch is power-constrained, this injector is the straightforward answer.