Witcom WitLink wireless licensed radio is a cost-effective,
line-of-sight digital radio transmission solution operating in frequencies from
7GHz up to 38GHz, which converges high speed voice, data, Internet and video
traffic. The system supports extensive, scalable data rates from 3 Mbps to 52
Mbps with flexible interfaces.
Two Witcom Witlink radio terminals required to complete Point-to-Point link.
Each Witcom WitLink wireless terminal consists of two units - indoor unit (IDU)
and outdoor (ODU) and plug-In module for IDU. IDU unit is 1U high, 19" rack
mounted indoor unit, interconnected by a single coaxial cable to a compact,
aesthetic outdoor unit(ODU) mounted directly to antenna or separatly on a tower
or rooftop.
Witcom WitLink wireless licensed radio is used in applications such as Internet
access for ISP POP backbone and business customer access, Multi-Tennant Users
(MTU's), Multi-Dwelling Users (MDU's), wireless bridge LAN-to-LAN
interconnection, cellular or PCS cell site interconnection, local telephone
company bypass, high-speed data exchange over Frame-Relay and high-speed
data/voice/video-conferencing over ATM.
Witcom Wavelink Features:
Scalable Capacity
Witcom WitLink wireless licensed radio supports scalable data rates from 2*DS1
to DS3+4*DS1 or 2*E1 to E3+E1 with one IDU. Integrating a fully digital design,
Witcom WitLink is the first system to offer a scalable solution, eliminating the
need to match IDUs to specific capacity requirements.The compact, aesthetic
WitLink ODU is capacity independent as well, resulting in quicker deployment and
redeployment, simplified logistics and reduced sparing requirements.
Superior Performance
- High system gain of up to 108dB provides superior link availability,
robustness, data integrity and increased range
- Spectrum efficiency CPM modulation with digital filtering eliminates the
need to "back off" from maximum device power, which prevents power loss and
adds system gain
- Reed Solomon FEC (Forward Error Correction)- first in the market that
can correct up to 20 errors
Flexible Plug-Ins
Witcom's plug-in design enhances IDU flexibility and enables future expansion
according to dynamically growing and changing needs. Unlike existing solutions
that require a different IDU for different services, capacities and interfaces,
Witcom WitLink is the first radio system that incorporates front-loadable
plug-ins to support diversified network requirements. With the WitLink plug-ins,
operators and end-users can determine IDU capacity and interface flavors.
WitLink delivers one platform for three different environments: PDH, Wireless
Bridge (10/100Base-T LAN) and entry-level SONET/SDH.
All plug-ins are "field upgradeable".
PDH
PDH plug-ins support DSX (16*DS1/DS3) or CEPT (16*E1/E3) interfaces. WitLink
plug-ins enable software controlled "reduced capacity" utilizing
"Spectrum-by-Demand". WitLink-2000 can scale from low capacity (such as 4*DS1)
to high capacity without the need to change existing hardware and without losing
sensitivity. The system adjusts the spectrum used according to the selected
capacity.The DS3+16*DS1 plug-in for example can be configured via software to
4*DS1, 8*DS1, 16*DS1, DS3, DS3+1/2/4 DS1's. The 8*DS1 mode uses a 12.5MHz
channel spacing, compared to DS3+4*DS1 which uses 50MHz channel spacing. This
seamless upgradeability optimizes capital investments while simplifying
logistics and reducing spare parts and product stocking.
Wireless Bridge (LAN-to-LAN)
The Ethernet 10/100 Base-T interface plug-in supports wireless bridge
(LAN-to-LAN) applications, significantly driving down the cost-of-operation by
eliminating expensive leased lines. This application is ideally suited for ISPs
and private networks. Using 100Base-T interfaces on a Router instead of DS3/E3
interfaces saves additional costs. The expensive high-end routers on both ends
can be eliminated in some circumstances. This plug-in comprises two 10/100
Base-T ports (incl. full duplex) + 4*DS1 or E1 ports and utilizes software
configurable channel spacing according to the required maximum throughput in the
air (max. 51 Mbps). Full transparent bridging is performed. The 4*DSI or 4*E1
enable seamless convergence of the LAN as well as for existing PBX/Video lines,
saving the need for additional parallel radio links.
Entry-level SONET/SDH
The STS-1/STM-0 plug-in provide an entry to SONET/SDH transport rates capable of
supporting data rates of 51.84 Mbps. This applications is ideally suited to
customers wanting to connect PCS/PCN and WLL backbones using ring topology, last
mile extensions in fiber networks and links between LMDS hubs.
Simple to Use and Reliable
Witcom WitLink wireless licensed radio uses an innovative, software controlled,
scalable digital modem, eliminating the long calibrations and system tuning
required in conventional radios. The system's digital design assures performance
stability, superior aging characteristcs and boosts system reliability.
All parameters can be easily controlled from the front panel touch-keys or via
the WitViewTM SNMP Network Management System. WitLink incorporates
powerful built-in tests, as well as near- and remote-end loop-back functions. A
pseudo random bit sequence generator enables the insertion of a standard test
signal for bit error rate (BERT) measurements.
Low Cost and Low Cost-of-Operation
Combining innovative architecture and cutting-edge digital implementation and
software technology, Witcom WitLink offers advanced features at the best
price/performance ratio in the market.
Low cost of operation is maintained due to the system's :
- Lowest DS3/E3 price in the market
- High MTBF and reliability resulting from Witcom's unique ASIC-based,
fully digital modem
- Plug & Play installation
- Common IDU and ODU for all data rates
- Common IDU for all frequency bands
- Plug-in design for demand-based buildouts, optimizing customer
investment, reducing logistics
- Scalable design for a seamless fit to a wide range of applications
- Maintenance-free
A Versatile Solution
Designed to provide maximum scalability, Witcom WitLink provides a reliable,
flexible and cost-effective solution for the following applications:
- Internet (ISP)
ISP backbone and Internet access for business customers
- Private Networks
Wireless Bridge for LAN-to-LAN interconnection
- Cellular and PCS Networks
high speed links between cell sites
- Business Bypass or Local Exchange Bypass
provided by Competitive Access Providers (CAPs)
- Wireless Local Loop Networks
"last mile", used by Local Exchange Carriers (LECs)
- ATM and Frame Relay
Added Value
- Compact IDU (1U high) for all capacities
- Small, light-weight and aesthetic ODU/antenna blends into the local
environment
- Pole mounting provides easy installation on various types of supporting
structures (mast, wall, ..) with an accurate antenna alignment system
- ODU can be replaced without affecting antenna alignment
- Standard: Alarms, Data and IDU cascading
- LCD and touchkeys - easy front panel configuration
- 1+1 Hot-Standby protection using an additional switching unit
- Complies to ITU-R, ITU-T, FCC and ETSI standards
SNMP Network Management System
WitViewTM is an intuitive, network management system with enhanced
diagnostic and performance monitoring tools. It provides open, reliable and
user-friendly GUI-based SNMP management. Based on a standard SNMP platform,
WitView can be integrated with HP OpenView or used as a stand-alone management
application. WitView supports local and remote terminal configuration,
status/alarm reporting, statistics and diagnostics. WitView allows proactive
management of all links from a single operator console running on Microsoft
Windows 95/98/2000 or NT stations.
A unique 10Base-T Ethernet management interface on the IDU enables convenient
management from any Ethernet LAN attached management station. The WitLink-2000
Management IP Network supports Routing Information Protocol (RIP) valuable in
case of a multiple cascaded links topology. This implies that the creation and
updates of terminal routing tables is performed automatically so that they can
adjust to network changes while maintaining a steady IP path to all terminals.
SNMP over SLIP and cascading between IDUs are also standard features. All radio
links can be easily in-band or out-of-band controlled from the management
station. IP Routing in each agent routes the management information throughout
the network, allowing simultaneous management of all links from a single
console. Trivial File Transfer Protocol (TFTP) enables remote software and
configuration upgrading.
Highlights
- One For All product. Support PDH, Wireless Bridge and Entry-level
SONET/SDH by simply changing plug-ins.
- Plug-in design reduces logistics, spare parts and product stocking
- PDH: Scalable capacity from 2*DS1 to DS3+4*DS1 and 2*E1 to E3+E1
- Wireless Bridge: Ethernet 10/100 Base-T +4*DS1/E1 plug-in
- Entry level SONET/SDH: STS-1/STM-0 plug-in
- Common 1U high IDU for all frequencies, capacities and interface
preferences
- Common IDU and ODU for all data rates
- Unique digital ASIC modem
- Software controlled reduced capacity uses Spectrum-by-Demand
- Reduced cost-of-operation
- Compatible with ATM/Frame Relay and 10Base-T/Fast Ethernet
- BIT, BERT, Loop-backs
- LCD and touchkeys - easy front-panel configuration
- Standard: Alarms, Data and IDU cascading
- Intuitive, pro-active SNMP NMS
- Intelligent GUI
- Software-configurable parameters
- IP Routing
- Stand-alone SNMP application (included) or HP-OpenView
- Runs under Microsoft Windows 95/98/2000 or NT stations
- Improved quality and performance monitoring as per ITU-T Rec.G826
- Complies with ITU-R, ITU-T, FCC and ETSI standards
- Witcom is an ISO-9000 certified company