VULCAN Vs MERCURY

TECHNOLOGICAL DIFFERENCESAND APPLICATIONS

Connection Mode

For connections of type:  Point to Point (radio link

between two devices).

Point to Multi-Point.

For connections of type:

Point to Point.

Point to Multi-Point.

Access Point (AP).

Wireless client.

VULCAN MERCURY

Media Access Control

VULCAN MERCURY

TDMA (Time Division Multiple Access):

Data coming from multiple sessions and with a specific period of time is transmitted by the media.

TDD(Time Division Duplex):

By means of the same frequency channel, transmission and reception are made in different periods of time.

CSMA/CA (Carrier Sense Multiple Access with Collision Avoidance):

This media access method is similar to the use of HUB equipment. The devices implementing this technology must “listen” the radiofrequency channel before transmitting the data required for communication.

Collision avoidance is required.

Wi-Fi Compatibility

It is not compatible with Wi-Fi products because the protocols of Data Link Layer and Physical Layer are different.

It is compatible with Wi-Fi products.

Under IEEE 802.11a/b/g standard.

VULCAN MERCURY

Data Rate by Session

It keeps the data rate by session at a limited faraway distance.

It works with DRS (Dynamic Rate Switching).

As the wireless client distances from the AP, the data rate adjusts to low speeds.

VULCAN MERCURY

Utilizable FrequencyBands

The devices can operate in the frequency bands ranging from 450 MHz to 7 GHz.

Special custom-made frequencies available under request.

The devices can operate in the 2.4 GHz ISM and 5 GHz UNII-1, UNII-2, and UNII-3 frequency bands.

VULCAN MERCURY

Session Management

Multiple sessions can be managed at the same time by means of the TDMA/TDD technology.

Each session is assigned a data rate.

Sessions compete for accessing the shared media.

QoS can be enabled for multimedia sessions.

VULCAN MERCURY

Mobility

Mobile clients can move around the cell up to 80 Km/h without losing synchronism.

Mobile clients can move (in certain cases) around the cell, but at low speeds.

It is not recommended for connecting mobile devices in motor vehicles.

VULCAN MERCURY

Line-of-SightRequirement

Almost-Non-Line-Of-Sight (ANLOS). High power VULCAN UHF Radios do not require line of sight, with the exception of very extreme conditions.

VULCAN Radios in 2.4GHz and 5GHz do require line of sight for operation.

Site Survey in the location is recommended.

Line-Of-Sight (LOS). among the devices to be linked wirelessly is required, because they work in very high frequencies.

Site Survey in the location in recommended.

VULCAN MERCURY

ODU Unitsor Radios Costs

Average cost. Less expensive than VULCAN devices.

VULCAN MERCURY

Client Devices Costs

VULCAN CPEs or client devices have an average cost.

MERCURY CPEs or client devices are very economical.

VULCAN MERCURY

Forward ErrorCorrection (FEC)

It integrates the FEC technique for reliable delivery of data, and allows the correction of corrupted “bits” by means of correlation algorithms with the redundant “bits”.

The FEC technique is used for error control in the data transmission over noisy an unreliable communication channels

It does not implement the FEC technique.

VULCAN MERCURY

Bandwidth Availablein the Channel

VULCAN UHF radios can be configured for 5 and 10MHz bandwidths.

VULCAN Radios operating in high frequencies con operate with bandwidth up to 40MHz.

In 2.4 GHz models, the bandwidth available is 22 MHz.

5 GHz models of radios use 20 MHz bandwidth. Except the LP-288ai in Turbo Mode which support 5/10/20/40MHz bandwidth.

VULCAN MERCURY

Data Rate/Distance Ratio

These devices keep the data rate (Mbps) stable at faraway distances.

Because of DRS, these devices vary the data rate and adjust it depending on the quality level of the wireless signal.

VULCAN MERCURY

Power Supply Power sources available:

12 VDC, 24 VDC, and 48 VDC.

120~240 VAC.

Integrated proprietary PoE technology.

Power sources available:

24VDC and 48 VDC.

120~240 VAC.

Integrated proprietary PoE technology.

VULCAN MERCURY

Full-Duplexor Half-Duplex Sessions

Full-Duplex sessions are simulated by means of TDMA/TDD.

Half-Duplex sessions only.

VULCAN MERCURY

Applications

PtP and PtmP links for long distance.

Last mile services.

Backhaul.

Telemonitoring.

Multi-sessions links with QoS. Highly mobile networks.

Links with no line-of-sight required.

Business, industrial, and military applications.

DC mobile versions.

Wi-Fi cells. Last mile service.

Hotspot.

Internet access.

Networks of free frequency bands.

Line-of-sight required for optimal performance.

Repeating points and wireless bridges.

Applications for small, medium, and large companies.

VULCAN MERCURY