Table of Contents
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This manual serves the following
ComNet Model Numbers:
CNGEMC4+2/M
CNGEMC4+2POE/M
CNGEMC4+2POEHO/M
INSTALLATION AND OPERATION MANUAL
CNGEMC4+2[POE][HO]/M
10/100/1000 MBPS INTELLIGENT
MEDIA CONVERTER WITH OPTIONAL POE+
The ComNet CNGEMC4+2[POE][HO]/M is a four port intelligent Media Converter.
It provides four 10/100/1000Base-T(X) copper ports and two 100/1000Base-FX SFP
ports. The CNGEMC4+2[POE][HO]/M provides exclusive functionality for easy field
deployment including DIP media converter based operation of RSFP (redundant
SFP) for creating redundant fiber connections and MUX feature for port isolation
preventing network video flooding of multicast traffic. Copper ports 1 through 4 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 copper ports 1 through 4. 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 cybersecurity 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.
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Summary of Contents for Comnet CNGEMC4+2/M
- Page 1 (60) watts of PoE from copper ports 1 through 4. 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 cybersecurity 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.
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Page 2: Table Of Contents
INSTALLATION AND OPERATION MANUAL CNGEMC4+2[POE][HO]/M Contents Regulatory Compliance Statement Warranty Disclaimer Safety Indications Overview Introduction Software Features Hardware Features Hardware Overview Side Panels Indicating LEDs Cables Ethernet Cables 10/100/1000BASE-T(X) Pin Assignments SFP Transceivers Console Cable DIP Switches Graphical User Interface Web Based Configuration System Information Port Configuration... - Page 3 INSTALLATION AND OPERATION MANUAL CNGEMC4+2[POE][HO]/M Static MAC Lock Port Guardian Port Guardian – CLI Reset Jumbo Frame Port Configuration Command Line Interface Management How to access the Command Line Interface (CLI) Technical Specifications TECH SUPPORT: 1.888.678.9427 INS_CNGEMC4+2[POE][HO]/M 09/08/20 PAGE 3...
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Page 4: Regulatory Compliance Statement
ComNet warrants that all ComNet products are free from defects in material and workmanship for a specified warranty period from the invoice date for the life of the installation. ComNet will repair or replace products found by ComNet to be defective within this warranty period, with shipment expenses apportioned by ComNet and the distributor. -
Page 5: Overview
INSTALLATION AND OPERATION MANUAL CNGEMC4+2[POE][HO]/M Overview Introduction The CNGEMC4+2 is an intelligent Media Converter that contains many features. The media converter will work under a wide variety of temperature, dirty and humid conditions. Some advanced features are configurable using DIP media converters on the device. Software Features »... -
Page 6: Hardware Overview
INSTALLATION AND OPERATION MANUAL CNGEMC4+2[POE][HO]/M Hardware Overview Side Panels The following table describes the ports that are on the sides of the CNGEMC4+2[POE][HO]/M. Port Description 10/100/1000Base-T(X) 4 × 10/100/1000Base-TX RJ-45 fast Ethernet ports support RJ-45 Ethernet ports auto-negotiation. Default Settings: Speed: auto Duplex: auto Flow control: disable... - Page 7 INSTALLATION AND OPERATION MANUAL CNGEMC4+2[POE][HO]/M CNGEMC4+2/M Power Connections LED for PWR1 LED for PWR2 LED for STATUS Console Mini USB Configuration DIP switches Contact Closure terminal block RJ-45 Ethernet Ports 1-4 Data Speed DIP switches Link/Activity LEDs for SFP Ports 5 and 6 SFP Ports 5 and 6 TECH SUPPORT: 1.888.678.9427...
- Page 8 INSTALLATION AND OPERATION MANUAL CNGEMC4+2[POE][HO]/M CNGEMC4+2POE/M CNGEMC4+2POEHO/M Power Connections LED for PWR1 LED for PWR2 LED for STATUS Console Mini USB Configuration DIP Switches Contact Closure Terminal Block RJ-45 Ethernet Ports 1 – 4 PoE Status LEDs for Ports 1 - 4 Data Speed DIP Switches Link/Activity LEDs for SFP Ports 5 and 6 SFP Ports 5 and 6...
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Page 9: Indicating Leds
INSTALLATION AND OPERATION MANUAL CNGEMC4+2[POE][HO]/M Indicating LEDs Color Status Description PWR1 Green DC Power Input 1 Good No power detected PWR2 Green DC Power Input 2 Good No power detected STATUS Green Initialization passed Failed 10/100/1000Base-T(X) Ethernet ports LNK/ACT Green Port link up Blinking Data transmitting... -
Page 10: Cables
INSTALLATION AND OPERATION MANUAL CNGEMC4+2[POE][HO]/M Cables Ethernet Cables The CNGEMC4+2 media converters have standard Ethernet ports. According to the link type, the media converters use CAT 3, 4, 5, & 5e UTP cables to connect to any other network device (PCs, servers, switches, routers, or hubs). - Page 11 INSTALLATION AND OPERATION MANUAL CNGEMC4+2[POE][HO]/M 1000 Base-T RJ-45 Pin Assignments Pin Number Assignment BI_DA+ BI_DA- BI_DB+ BI_DC+ BI_DC- BI_DB- BI_DD+ BI_DD- The CNGEMC4+2[POE][HO]/M media converters support auto MDI/MDI-X operation. You can use a straight-through cable to connect PC to switch. The following table below shows the 10/100BASE-T(X) MDI and MDI-X port pin-outs: 10/100 Base-T MDI/MDI-X pin assignments Pin Number...
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Page 12: Sfp Transceivers
CNGEMC4+2[POE][HO]/M SFP Transceivers The media converter has fiber optic ports that utilize SFP connectors. ComNet offers a wide selection of SFP modules that offer different fiber type, connector type and distances. Please remember that the TX port of unit A should be connected to the RX port of unit B. -
Page 13: Dip Switches
INSTALLATION AND OPERATION MANUAL CNGEMC4+2[POE][HO]/M DIP Switches The CNGEMC4+2’s dip media converters configure media converter features. The DIP media converters are numbered from left to right when viewing the side of the media converter with the backplate on the bottom and the power connections on the left. If “Web Management Enable” is selected in the management software under System Settings, the DIP media converter settings will be overridden by any settings made in the browser interface. - Page 14 INSTALLATION AND OPERATION MANUAL CNGEMC4+2[POE][HO]/M MUX Enabled (DIP switch 1 in ON Position) RSFP Enabled (DIP switch 2 in On Position) With RSFP (Switch 2) Enabled, the fiber ports will trunk and port 6 will be primary. Port 5 will be failover.
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Page 15: Graphical User Interface
INSTALLATION AND OPERATION MANUAL CNGEMC4+2[POE][HO]/M Graphical User Interface This section provides instruction on accessing the HTML Web Site on the Media Converter. Web Based Configuration An embedded HTML Web Site resides in the flash memory on the CPU Board. It contains HTML code that allows you to view and toggle settings on the Media Converter through a standard web browser. - Page 16 INSTALLATION AND OPERATION MANUAL CNGEMC4+2[POE][HO]/M Main Interface Main interface TECH SUPPORT: 1.888.678.9427 INS_CNGEMC4+2[POE][HO]/M 09/08/20 PAGE 16...
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Page 17: System Information
INSTALLATION AND OPERATION MANUAL CNGEMC4+2[POE][HO]/M System Information The media converter system information is provided here. System Information interface Label Description Settings Summery MUX and Redundant SFP Mode States Web Management Enable Override of the DIP Switch Settings Override Settings With Web MGMT Enabled, these options will override MUX and RSFP Temperature Status Device internal board temperature reading Port Link Status... -
Page 18: Port Configuration
INSTALLATION AND OPERATION MANUAL CNGEMC4+2[POE][HO]/M Port Configuration The Port Configuration page shows you current link state and settings. By default, the Media Converter ports are set to auto negotiation, the user may force negotiation so they can select port speed, duplex, and flow control. Port Statistics Port Statistics displays packet counts per port. -
Page 19: Authentication
INSTALLATION AND OPERATION MANUAL CNGEMC4+2[POE][HO]/M Authentication The Authentication page allows you to change the username and password. All updates apply to both the GUI Webpage and Command Line Access. TECH SUPPORT: 1.888.678.9427 INS_CNGEMC4+2[POE][HO]/M 09/08/20 PAGE 19... -
Page 20: Upgrade Firmware
Enable Image Upgrade allows you to update the firmware of the Media Converter. The firmware is upgraded using a bootloader provided by ComNet. The Enable Image Upgrade button must be enabled before the bootloader will connect to the Media Converter. RSFP is not available during the firmware update process so please observe the network topology before upgrading. -
Page 21: Factory Defaults Reset
INSTALLATION AND OPERATION MANUAL CNGEMC4+2[POE][HO]/M Factory Defaults Reset The factory default Reset feature restores the device to the original factory default values except for the network configuration settings. TECH SUPPORT: 1.888.678.9427 INS_CNGEMC4+2[POE][HO]/M 09/08/20 PAGE 21... -
Page 22: System Reset
INSTALLATION AND OPERATION MANUAL CNGEMC4+2[POE][HO]/M System Reset A System Reset is required for configuration of Jumbo Frames and the Static MAC Lock. System reset is a soft reboot, system can take up to 15 seconds to fully power cycle. System Reset interface TECH SUPPORT: 1.888.678.9427 INS_CNGEMC4+2[POE][HO]/M 09/08/20 PAGE 22... -
Page 23: Network Interface Configuration
INSTALLATION AND OPERATION MANUAL CNGEMC4+2[POE][HO]/M Network Interface Configuration Label Description Host Name Assign a name to the device Enable DHCP When DHCP Client function is enabled, the Media Converter will be assigned an IP Address from the network DHCP Server. The default IP will be replaced by the DHCP Address assigned to it. -
Page 24: Poe-Pse Status
INSTALLATION AND OPERATION MANUAL CNGEMC4+2[POE][HO]/M PoE-PSE Status Only applies to the CNGEMC4+2POE[HO]. Label Description Port Power Displays the amount of power being used Port Power Cycle Turns off PoE then enables to simulate a power cycle Port PD Class Displays the PoE Class being used by the PoE device Force PoE Enabled 60W of PoE (HO models only) Warning: Please use Force PoE mode with caution and ensure it is only enabled when a 60W... -
Page 25: Contact Configuration
INSTALLATION AND OPERATION MANUAL CNGEMC4+2[POE][HO]/M Contact Configuration Label Description Output Contact The faults that trigger the output contacts are fully configurable by selecting the source(s) to monitor Contact Override The contacts may also be forced to be an opened or closed state, the state box checked will close the contact when override is selected Contact Status The input and output contact states are displayed... - Page 26 INSTALLATION AND OPERATION MANUAL CNGEMC4+2[POE][HO]/M Static MAC Lock Label Description Enable Static MAC Enables Static MAC Locking Lock Static MAC MAC Address of the device that is allowed to forward and receive traffic. Address Packets will be dropped for MAC addresses not listed in the table Port Number Ports to be included in the locked list TECH SUPPORT: 1.888.678.9427...
- Page 27 INSTALLATION AND OPERATION MANUAL CNGEMC4+2[POE][HO]/M Port Guardian The Port Guardian feature provides a high security managed port lock out mode and when enabled will power down the port as soon as a link loss status is detected when a cable is disconnected. This provides high security against network attack by an intruder who accesses the edge device and disconnects it to then try and connect their own intrusion device (laptop, network sniffer etc.).
- Page 28 INSTALLATION AND OPERATION MANUAL CNGEMC4+2[POE][HO]/M Port Guardian – CLI Reset The Port Guardian feature can be cleared from the USB serial port connection on the unit through the CLI and also the port status can be displayed to show any ports that are in lock out state. To access the Port Guardian CLI commands, connect to the CLI using the procedure described in the Command Line Interface Management section on page 48 and then use the commands described below.
- Page 29 INSTALLATION AND OPERATION MANUAL CNGEMC4+2[POE][HO]/M Jumbo Frame Port Configuration Select port frame size (MTU). 10240 is the default for the device. To disable jumbo frame support, select “Not Enabled” on the appropriate port. That will default the MTU size to 1522. TECH SUPPORT: 1.888.678.9427 INS_CNGEMC4+2[POE][HO]/M 09/08/20 PAGE 29...
- Page 30 INSTALLATION AND OPERATION MANUAL CNGEMC4+2[POE][HO]/M Command Line Interface Management How to access the Command Line Interface (CLI) CLI access is provided by connecting a USB cable from a PC to the Media Converter. The PC should recognize the device and assign a COM Port to the device. Please refer to your PC documentation to determine which COM port was assigned to the media converter.
- Page 31 INSTALLATION AND OPERATION MANUAL CNGEMC4+2[POE][HO]/M Command Description netinfo Displays the IP Address of the device help Displays a list of available command setip Update the IP Address on the device Format: setip <interface> <IP Address> <Subnet Mask> Example format: “setip eth0 10.10.10.10 255.255.255.0” TECH SUPPORT: 1.888.678.9427 INS_CNGEMC4+2[POE][HO]/M 09/08/20 PAGE 31...
- Page 32 INSTALLATION AND OPERATION MANUAL CNGEMC4+2[POE][HO]/M Firmware Upgrade Procedure The steps for upgrading the unit with the push bootloader are as follows: 1. Bring up the web server and select the Firmware Upgrade tap. Check the “Enable Image Upgrade box. 2. Start the bootloader and verify the IP address listed is the same as your device. Update if needed.
- Page 33 INSTALLATION AND OPERATION MANUAL CNGEMC4+2[POE][HO]/M Technical Specifications Interface 2 × 100/100Base-X SFP RJ-45 Ports 2 × 10/100/1000Base-T(X), Auto MDI/MDIX LED Indicators Per Unit: Power x 2 (Green) RJ-45 Per Port: Link/Activity (Green/Blinking), 1000 Mbps Indicator (Amber) SFP Per Port: Link/Activity (Green/Blinking) Power Requirements Input Voltage Dual 48 –...
- Page 34 8 TURNBERRY PARK ROAD | GILDERSOME | MORLEY | LEEDS, UK LS27 7LE T: +44 (0)113 307 6400 | F: +44 (0)113 253 7462 | INFO-EUROPE@COMNET.NET © 2020 Communications Networks Corporation. All Rights Reserved. “ComNet” and the “ComNet Logo” are registered trademarks of Communication Networks, LLC.
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