PoLRE 24-Port/48-Port Managed Switch

 

Overview

The award winning 24 and 48 Port PoLRE (Power over Long Reach Ethernet) switches deliver ethernet and PoE over a single pair of wire with over 1,200 ft (365 m) reach. This means you can transform your single pair UTP infrastructure into a robust IP backbone with power.

PoLRE was designed to make the migration to IP quick, easy and cost effective by leveraging an existing single pair UTP in frastructure. Benefits include:
• Accelerating your return on investment by reducing infrastructure costs.
• Collapsing planning and deployment time.
• Eliminating infrastructure barriers, risks, disruption and costs.
• Creating a robust IP platform that is easy to configure, deploy and manage.
Speed, Reach and Power
PoLRE delivers 10 Mbps (symmetrical, full duplex) and PoE over a single pair of UTP with over 1,200 ft (365 m) reach. It is designed to support IP phones and other IEEE compliant devices. No speed degradation with longer reach.
Industry Leading PowerWISE® Technology
Power sharing for redundancy, load balancing, AC/DC options, hot swappable power supply and auto-sensing 100-240 VAC delivering 500 to 1,000 Watts of power. PoLRE is one of the most energy efficient switches on the market, consuming less than 17 Watts of power to operate.
Managed Switch with Plug-and-Play Option
PoLRE can operate in a transparent mode functioning as a bridge, allowing for plug-and-play deployment to a fully managed switch with high value features including:
• Power management by port for easy reset of ports.
• Port MAC locking for higher security and peace of mind.
• Simple Network Manager, an intuitive Web GUI that makes managing the switch a breeze.

POLRE DIAGRAM

Tech Specs

PoLRE 24 & 48 Port Managed Switch Technical Specifications

ModelNV-PL-024 & NV-PL-048
Dimensions19 inches (48.26cm) x 1U without rack ears:
•1.75” x 17.13” x 9.92” (HxWxD)
•4.45cm x 43.5cm x 25.2cm (HxWxD)
•Weight 7.94 lb (3.6 kg)
MountingStandalone or rack or shelf-mountable 2 brackets included for installation
Memory32MB FLASH, 64MB DDR SDRAM
Interface: Ethernet Uplink (Trunk IP)Maximum 2 uplinks, each 1Gb/s (full duplex), either:
•2 mini-GBIC ports: 1000 Base-TX/SX/LX/EX/ZX/LHX (determined by SFP, transceiver module installed), Ethernet IEEE 802.3z, fiber optic cable, or
•2 RJ45 ports: 10/100/1000 Base-T auto-sensing, independent speed selection, Ethernet IEEE 802.3, CAT5e copper cable
Interface: Downlink (PoE and IP to Adapter)PL-024: 1 RJ21 male telco connector (standard), 24 pairs used
PL-048: 2 RJ21 male telco connectors (standard), 48 pairs used
Maximum Distance: 1200ft (365m) over CAT3 UTP cable, 24 AWG
Speed: 10 Mbps (full duplex)
Power: 15 Watts
Management1 LAN port (MGMT): RJ45, 10/100 Base-T auto-sensing, IEEE 802.3 1 UART console port: RJ45 to DB9 cable
Power SupplyUnit auto-sensing 100-240VAC, 50/60 Hz
Power output: 500W max at 100VAC, 1000W max at 240VAC
Power ConsumptionPL-024: 16.5W PL-048: 22W
Power Injection (PoE)DC voltage: -54VDC; Endpoint devices must be compliant with IEEE 802.3af
PowerWISE® Power Sharing2 male connectors (rear), DC IN and DC OUT: 48VDC to 56VDC
Operating
Temperature
14°F to 122°F (-10°C to 50°C)
Humidity10% to 95% (non-condensing) at 95°F (35°C)

Phylink Adapter Technical Specifications

ModelNV-PL-PA-011-6 (sold as 6 pack)
Dimensions•0.71” x 1.1” x 2.56” (HxWxD)
•1.8cm x 2.8cm x 6.5cm (HxWxD)
•Weight: 0.78 oz. (22 g)
Interface PoLRE Switch Side1 RJ11 port: CAT3 unshielded single twisted pair cable. Between the wall plate and adapter, you can reuse the existing line cord when doing a DNIC/POTS displacement.
Interface Ethernet side: for IP end point deviceRJ45 port: 10 Base-T
Power Supply48VDC
Power Consumption0.9W
Power Injection (PoE)DC voltage on RJ45 port:
•54V max
•37V when 1200ft (365m) away from its PoLRE Switch powers Class 1, Class 2 and some Class 3 IEEE 802.3af compliant IP devices
Operating Temperature32°F to 104°F (0°C to 40°C)
Humidity10% to 95% (non-condensing) at 95°F (35°C)
Accessories

NV-GLC-SX-MMD
View Datasheet
Small Form Factor Pluggable (SFP) transceivers are compatible with the Small Form Factor Pluggable Multi-Sourcing Agreement (MSA). They simultaneously comply with 1.25Gb/s 1000Base-SX Ethernet and1.063Gb/s Fiber Channel. They are RoHS compliant and lead-free.
NV-PL-1000-PWRExtra power supply that comes standard with the CLEER switch delivering 500 watts of power if 110v power source or 1,000 watts of power if 220v power source.
NV-PL-PA011-6The Phylink adapters are sold in packages of 6 and are media converters for the PoLRE switch family. They convert a two wire RJ11 connections into a RJ45 connection for standard Ethernet cable.
NV-PL-DCCBLPack of 4 DC cables to connect 4 PoLRE switches together to enable power sharing for redundancy.

Documentation
Firmware Upgrade

Software Version

The current version of the switch software is 3.4.3

Release Notes

NEW:

  • Link aggregation support.
  • IGMP multicast streaming support.
  • Jumbo packet support.
  • Import/Export of configuration now available via TFTP.
  • TACACS Support for web GUI.
  • HTTPS support for web GUI.
  • Additional statistics are available through the command line for uplink ports.

FIXES:

  • Ports now enabled after spanning tree service is started if applicable.
  • Packet buffer enhancements.
  • Ports in the GUI now display the correct status if a device is connected or not.
  • Spanning tree will no longer go into a bad state when a time change takes affect.
  • LLDP will no longer crash in some instances.

KNOWN ISSUES:

  • Changing the hostname does not update in the command line prompt until the next session.
  • When a timezone is set, some syslog message timestamps are the set timezone, while others are in UTC.

Firmware Upgrade Request
 

Videos

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Operator’s Perspective: NMSU PoLRE Experience


Provider’s Perspective: NMSU PoLRE Experience

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FAQ’s

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FAQ

General FAQ

Where can I buy the NVT Phybridge PoLRE solution?

NVT Phybridge solutions are available through our Distribution Partners. Our list of distributors is constantly growing, please contact us directly for a list of distributors.

What are these solutions?

The NVT Phybridge PoLRE is a Layer 2+ Ethernet data switch that provides a complete parallel voice network over existing telephone cabling. The solution allows for a non-disruptive, quick and straightforward way to deploy IP telephony and Unified Communications (UC) applications. The NVT Phybridge PoLRE comes in 24 and 48 port models. The NVT Phybridge PhyLink Adapters are common to both models. It is necessary to have one PhyLink Adapter for every active port on the NVT Phybridge PoLRE.

What is the service and support?

4 hours response time, plus hardware and software assurance is included with the warranty. If an RMA needs to take place, an advance replacement is done. If you require an RMA, you can get in contact with Support here.

What is the warranty?

There is a 1-year manufacturer’s warranty on the PoLRE, based on the date of purchase. There is a 5-year warranty on the adapters. The end-user needs to register their product(s) online. The end-user is also able to purchase additional warranty, but they need to get in contact with their distributor. The warranty does not cover any environmental damage that may be caused by acts of god or negligence, such as: water, lightning strikes, fire, civil unrest, etc.

What is the competition?

NVT Phybridge is the only company to competitively offer robust solutions that leverage existing infrastructure to provide POE and Ethernet to an endpoint at distance of 1,200 feet or greater.

Do these products support all major VoIP manufacturers?

Yes. Any IP PBX device is supported as the NVT Phybridge PoLRE is configured as a layer 2+ switch.

Who has tested the NVT Phybridge PoLRE?

Multiple manufacturers, VARs and vendors have tested the NVT Phybridge PoLRE. Please contact us directly for a list of partners.

Do these solutions support video phone applications?

The PhyLink supports 10 BASET connection speeds, verify with your video phone VoIP device manuals the recommended minimum data bandwidth required.

Does the NVT Phybridge PoLRE support fiber interfaces?

The PoLRE will work with both Multi Mode Fiber (MMF) and Single Mode Fiber (SMF), the limitation is in the GBIC module (rate). The GBIC interfaces supports 1000 BASE-TX/SX/LX/EX/ZX/LHX.

How does the NVT Phybridge PoLRE work with VLANs?

VLANs are not required when deploying the PoLRE. The PoLRE and PhyLink Adapters act essentially like a “physical” VLAN, this is done by isolating the IP voice traffic to the parallel voice network provided by the PoLRE system. The PoLRE has a default configuration of VLAN 1 with all untagged configuration. This will pass all untagged VLAN traffic or remove the tag from VLAN 1 for data to and from the PoLRE and PhyLink Adapter. If you need to configure your IP phones to work with any fixed VLANs (because you may already be using VLANs on your corporate data network), then you will need to configure the PoLRE to handle this VLAN traffic.

What is the maximum PoE Class IP device/phone that can be supported?

Based on the IEEE 802.3af standard, operational testing is required to determine if the Class 3 IP device you have will work in your unique network topology (the longer the two-wire length, the less power is available to the IP device.) First, please verify the manufacturer’s IP device power consumption specification, if it is less than 10.6 W then you may be able to use a standard PhyLink Adapter, you will need to test your IP device in the final network topology to ensure the line power draw and IP device power draw does not exceed the 10.6 W. A quick test is to plug the IP device into the PhyLink Adapter and put the IP device into maximum power consumption. For an IP phone this is usually the ringing state (maximize the ring volume), if the phone does not restart or shut down then your IP device and line load is drawing less power than the 10.6 W maximum. The PoLRE limits the current drawn on the RJ45 PoE port. If the power draw of the IP phone (device) and line length exceeds the power that can be provided by the PoLRE for the IP phone, then it may not power up or will reset during operation. If the problem persists re-test the same IP phone at a shorter cable length to verify that problem is related to the IP phone drawing more than the maximum rated at the desired line length.

What IP phones are supported?

All Class 1 and Class 2 and some Class 3 IEEE 802.3af compliant IP devices are supported.

Technical FAQ

How is QoS handled?

Because of the point to point topology of the PhyLink Adapter to the NVT Phybridge PoLRE, customized QoS configuration is not normally required. In most instances network configuration is not required but if required QOS can be setup on the switch, please see technical training and manuals for information.

How does the NVT Phybridge PoLRE work with VLANs?

VLANs are not required when deploying the PoLRE. The PoLRE and PhyLink act essentially like a “physical” VLAN, this is done by isolating the IP voice traffic to the parallel voice network provided by the PoLRE system. The PoLRE has a default configuration of VLAN 1 with all untagged configuration. This will pass all untagged VLAN traffic or remove the tag from VLAN 1 for data to and from the PoLRE and PhyLink. If you need to configure your IP phones to work with any fixed VLANs (because you may already be using VLANs on your corporate data network), then you will need to configure the PoLRE to handle this VLAN traffic. This requires changing the bridging configuration on the GBE ports and each PhyLink port to. Sample PoLRE database configuration files are available with VLAN configured.

How do I enable SSH, HTTPS, and TACACS on my switch?

You will need to make sure that your current firmware is 3.4.1 or higher. If not, then you will need to submit a firmware request form which can be found here. To enable HTTPS, you will need to issue this command: pal-service-http https. To enable SSH, issue this command: pal-service-ssh.

Contact support to receive a guide on how to install and configure TACACS.

What do the colours mean on the GUI of the switch?

Grey indicates that nothing is connected to that port.
Blue indicates that there is a PhyLink connected to the port.
Green indicates that there is a PhyLink and an endpoint connected to the switch.
Black numbers indicate that there are no line issues.
Red numbers indicate that there is either no power or there are line issues.
Typical port status is green with black numbers.

How do I enable fibre on my switch?

Once logged into your switch, enter this command: pal-set-gigaport {GbE1|GbE2|GbE} fiber. Make sure to save configuration with pal-conf-save and then reboot the switch.

Features FAQ

What is the minimum connection rate?

The PoLRE supports 10 Mbit full duplex at up to 1200 feet on all downlink ports.

Is there a limit to the number of supported devices off one PhyLink?

Yes. Each PhyLink can power one IP device (all Class 2 and some Class 3). Some IP phones do allow additional IP devices plugged into them, like a laptop computer, allowing multiple network devices to function off the single PhyLink connection. (Note: For the daisy chaining configuration you may require additional Earth ground on the PoLRE; please consult the PoLRE Hardware Installation Manual.)

What are the data security implications of these devices?

The NVT Phybridge PoLRE has two types of network connections, one for Management and one for the Uplink traffic, each configurable to a separate subnet. The voice traffic is isolated to the GBE Uplink Network ports; in-band management of the PoLRE is available through this port, or it may be kept isolated. The MGMT port may also be used for monitoring the PoLRE; this port operates independently of the Uplink ports.

Does the NVT Phybridge PoLRE support Auto MDIX?

Yes. Both GBE ports support straight through or cross over cables. The straight through cable is recommended.

Are the NVT Phybridge PoLRE and PhyLink full duplex (sending and receiving data at the same time)?

Yes, traffic between the PoLRE and PhyLink and network ports support full duplex.

Is the PoLRE SNMP compliant?

The NVT Phybridge PoLRE supports SNMP messaging.

How is the Power over Ethernet provided to the IP phone?

The NVT Phybridge PoLRE provides power over the PhyLink’s RJ45 port, the voltage provided is IEEE 802.3af compliant. We would be considered a mid-span POE device.

 

What speeds are provided/supported?

The per port signalling rate is 10BASE-T on each port. This speed is not affected by distance or cable quality.

What are the specifications of the PhyLink RJ45 port?

The RJ45 port is a 10 Mbps Full Duplex Ethernet port that provides IEEE 802.3af compliant voltage to an IP device connected to the RJ45 port.

Can I attach any Ethernet device?

Yes. The NVT Phybridge PhyLink supports Ethernet devices that are IEEE 802.3af compliant. The connection rate is 10BASE-T. The NVT Phybridge PoLRE supports 10/100/1000BASE-T connections on GBE copper and fiber ports.

What is the power consumption of PhyLink?

The PhyLink consumes a maximum of 1 W.

What is the operating temperature of the PhyLink?

The PhyLink can operate in areas with ambient temperature from 0 to 40 degrees C. The PhyLink does not operate above ambient temperature and should be in an area that gets air circulation.

What is the operating temperature of the PoLRE?

The PoLRE can operate in areas with ambient temperature from 0 to 50 degrees C.

Will the PoLRE or IP devices work without power?

The PoLRE is the only component that requires connection to a power source. The PhyLink and IP devices plugged into the PhyLink receive their power from the NVT Phybridge PoLRE. The NVT Phybridge PoLRE is a complete PoE solution; no local power pucks or adapters are required for the PhyLink or for the IP device plugged into the PhyLink.

Does the NVT Phybridge PoLRE support CDP and/or LLDP?

The PoLRE switch allows for CDP Pass-through communication. LLDP is supported on the PoLRE switch.

Is the PoLRE switch IPv6 capable?

Yes, the PoLRE switch does support IPv6 devices.

Installation FAQ

How do I install the NVT Phybridge PoLRE?

Mount the PoLRE in desired location. Unplug your legacy telephone system (digital phones and PBX) from the two-wire infrastructure that will be connected to the PoLRE. Warning: the PoLRE can damage legacy equipment if it is left connected. Connect AC cable and optional ground connection, turn on the PoLRE. Connect PoLRE Line Interfaces to the prepared Female RJ21 Connectors from the two-wire infrastructure. Connect the NVT Phybridge PoLRE GBE1 port directly to the IP PBX or selected Ethernet switch. Connect the PhyLink to the RJ11 connection at desired wall locations. Connect the chosen IP phone to the RJ45 port on the PhyLink. The chosen IP phones will register with the IP PBX. Use your new IP telephony system (or optional PC port from IP phone). The default PoLRE configuration is set up for the daisy chaining of the GBE ports. If you want to set up a redundant network topology for the NVT Phybridge PoLRE, please refer to the NVT Phybridge PoLRE manuals or www.nvtphybridge.com for configuration information

How do I configure the NVT Phybridge PoLRE?

The PoLRE comes from the factory with a default configuration that provides basic functionality without any additional programming. The NVT Phybridge PoLRE may be configured to customize operation for your unique deployment (IP address, bridging configuration, ADSL configuration). Please read the PoLRE WEB GUI and Hardware Installation manuals before attempting to change any configuration. If problems occur, reset the NVT Phybridge PoLRE to its factory default.

What is the default user name and password in the PoLRE?

Default user name: admin

Default password: admin

What is the default IP address on the PoLRE?

Default IP addresses:

192.168.100.1 GBE IP Address

192.168.1.1 MGMT IP Address

 

 

What if I have forgotten the admin user password?

Please try the default user name and password (admin/admin). If this does not work factory default the unit by holding the reset button for 10 seconds.

How do I retrieve the IP address of the NVT Phybridge PoLRE if I have forgotten it?

Factory default the unit by holding the reset button for 10 seconds.

What do the LEDs on the PhyLink represent?

The left LED indicates activity on the line when the PoLRE and the PhyLink are communicating. This can be slow or fast depending on many factors. The right LED indicates the connection between the PhyLink and the IP device connected to it. This will blink slowly or rapidly based on network activity.

How do I calculate the UPS (Uninterruptable Power Supply) requirements for the NVT Phybridge PoLRE?

The UPS allows the materials to be switched to emergency battery power for up to several minutes or longer in case of electrical problems, including; power line disturbances, outages, overvoltage, under-voltage, voltage spikes and lightening. To determine more accurate UPS power requirements, you should determine the following:

How much power the PoLRE and PhyLinks consumes?

The PL-048 will draw 22W and the PhyLink will consume 1 W of power. Use these values to help calculate your UPS usage.

Please see our power calculators in the partner portal for more detailed explanation on this.

How do I know if my cabling will support these devices?

The NVT Phybridge PoLRE and PhyLink are designed to work with 24 and 26 AWG (American Wire Gage) wiring. We recommend use of CAT3 or better cabling for installation of the PoLRE. However, this does not mean the PoLRE will not work on cabling that does not meet CAT3 specifications.

Can the PoLRE damage old legacy phone equipment if left plugged into wiring?

Yes. The PoLRE provides up to 56V DC on a single pair. This voltage can potentially damage some digital and legacy phone equipment. Please ensure all old legacy phones are disconnected from the wiring infrastructure before you power up the NVT Phybridge PoLRE.

 

 

Where is the best location to put the PhyLink?

The best location for the PhyLink is as close to the RJ11 (standard telephone jack) connection as possible; on the wall next to the RJ11 wall plate or near the RJ11 jack in a cubicle. It is recommended to have the PhyLink in a place where there is reasonable airflow.

How do I prepare to install the NVT Phybridge PoLRE?

The NVT Phybridge PoLRE may be physically installed in the server room or telephone closet prior to use. Ensure the PoLRE will have adequate air flow. Connect Earth ground connection if required. An Earth ground connection is not normally required with the PhyLink, however when more than six PhyLinks that have multiple IP devices are connected (in daisy chained mode) to any single PoLRE, then that PoLRE requires an Earth ground connection. Before powering the PoLRE, ensure all legacy digital sets and legacy PBX equipment is disconnected from the two-wire infrastructure to be used. Prepare RJ21 female connection to the Line interface. You may be able to directly disconnect your RJ21 cable from your PBX line card to the PoLRE (all lines connected in single Amphenol cable bundle) or you may need to prepare a new separate RJ21 line bundle with selected lines punched down from the two-wire infrastructure.

What Amphenol/RJ21 connection do I need to connect to the NVT Phybridge PoLRE?

A female connector on your RJ21 cable is required to connect the RJ21 cable to the NVT Phybridge PoLRE Line Interface.

 

Does the NVT Phybridge PoLRE support Auto MDIX?

Yes. Both GBE ports support straight through or cross over cables. The straight through cable is recommended.

Do I need a special cable to connect to the MGMT port?

No – any standard CAT5 cable will work.

Will my network management software see the NVT Phybridge PoLRE and/or the PoLRE?

The NVT Phybridge PoLRE can be seen on the network. The NVT Phybridge PoLRE can be configured with an IP address for in-band management (on GBE ports). The NVT Phybridge PoLRE can be configured with an IP address on the MGMT port for out-of-band management. The PhyLink does not have a MAC address and acts as a bridge for the device plugged into the RJ45 port. It is not accessible from the network. Once an IP device is connected to the PhyLink it will be fully manageable as it is now on the network.

 

How do I find out the connection rates of the PhyLink to the NVT Phybridge PoLRE?

The rate will be 10BASE-T regardless of distance. If the PhyLink is within 1,200 feet and the cabling allows a connection the rate be 10BASE-T.

How do I configure the PhyLink?

The PhyLink requires no configuration.

Why does my PhyLink not power up?

There could be multiple reasons, including wiring problems, short on wiring, distance, problem with the PoLRE port, or a problem with the PhyLink. Please see the Hardware Installation manual for details on how to troubleshoot this problem.

My PhyLink will not connect to the PoLRE, what is wrong?

There could be multiple reasons, wiring problems, distance from the PoLRE, damaged PhyLink, a damaged port on the PoLRE. Please see the Hardware Installation manual for details on troubleshooting connection problems.

Can I plug in a non-POE device into the PhyLink RJ45 connector?

Yes, you can connect non-PoE devices like a PC if the device is IEEE 802.3af compliant.

Does the PhyLink support Auto MDIX?

No. The PhyLink requires a straight through Ethernet cable for the IP device.