10/100/1000 Mbps Intelligent Redundant Ring Gigabit Switch with Optional PoE+

CNGE2+2SMS Series

Example of 10/100/1000 Mbps Intelligent Redundant Ring Gigabit Switch with Optional PoE+

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-40 º to +75 ºC








2 + 2




Made in the USA




30 W or 60 W

The ComNet CNGE2+2SMS[POE][HO] is a four port intelligent switch with light management functionality. It provides two 10/100/1000Base-T(X) copper ports and two 100/1000Base-FX SFP* ports. The CNGE2+2SMS[POE][HO] provides exclusive functionality for easy field deployment including DIP switch based operation of RSTP for creating redundant network topologies as well as preventing network video flooding of multicast traffic with IGMP snooping. Ports 1 and 2 can optionally supply up to thirty (30) watts of power per port based on the IEEE 802.3at standard. An optional High Output (HO) version is also available that can supply up to sixty (60) watts of PoE from ports 1 and 2. This product is fully compatible with the ComNet exclusive CopperLine® SFP modules for operation over extended distance UTP or Coax cable. The ComNet exclusive Port Guardian feature provides additional cyber security protection by enabling physical port lockout in the event that an existing cable is disconnected and prevents a potential network incursion using common spoofing techniques. The intrusion event is reported back to the operator using SNMP.

Features for CNGE2+2SMS Series

  • Supports Link Layer Discovery Protocol (LLDP)
  • Several features can be enabled with no programming required: - RSTP (Rapid Spanning Tree Protocol) - IGMP V2 Snooping - Simple Multicast Flooding Prevention (Star/Linear topologies) - Dual Redundant SFP Mode
  • Electrical ports support Auto-Negotiation for 10Mbps, 100Mbps or 1000Mbps, full duplex or half duplex data.
  • SFP Ports support 100 or 1000 Mbps full duplex data
  • SFP Ports compatible with CopperLine CL-SFP modules
  • IEEE802.3at Power over Ethernet (PoE+)
  • 30W or 60W PoE+ on Ports 1 and 2†
  • PoE status monitoring & automatic reboot function†
  • Event notification through SNMP traps and Relay Output
  • STP & RSTP supported
  • Redundant AC/DC inputs for uninterrupted operation in the event of a loss of operating power or a power supply failure
  • SNMP v1/v2c for network management
  • Supports 10K Bytes Jumbo Frame
  • Device Binding security function
  • Port Guardian prevents network intrusion through intelligent physical port lockout
  • Voltage transient protection on all power and signal input/output lines provides protection from power surges and other voltage transient events.
  • Electric Port Supports Auto-negotiation for Full Duplex or Half Duplex Data Throughput
  • Designed for wall or DIN rail mount installations (using optional DIN mounting bracket)


  • 10/100/1000 Mbps Ethernet
  • Perimeter Protection Surveillance Systems
  • IP Video

CNGE2+2SMS Series Application Diagram(s) (2)

Application Diagram(s) for CNGE2+2SMS SeriesApplication Diagram(s) for CNGE2+2SMS Series

CNGE2+2SMS Series Ordering Information

Part NumberDescription
CNGE2+2SMS4 Port Gigabit Ethernet Self-managed Switch 2 SFP FX, 2TX. Lifetime Warranty.
CNGE2+2SMSPOE4 Port Gigabit Ethernet Self-managed Switch 2 SFP FX, 2TX with 30W of PoE+ power. Lifetime Warranty.
CNGE2+2SMSPOEHO4 Port Gigabit Ethernet Self-managed Switch, 2 SFP FX, 2TX with 60W of PoE+ power. Lifetime Warranty.

SFP = Small Form-Factor Pluggable Module † CNGE2+2SMSPOE or CNGE2+2SMSPOEHO models only