YDI Link CX-24, Руководство пользователя

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Link CX-24 User’s Manual
Version 1.0 Page 4 February 2004
1.6 Features
The Link CX-24 offers the following features:
• Robust all-outdoor enclosure.
• Integral antenna.
• Sturdy radio mounting systems for quick, accurate and reliable integral antenna alignment.
• Operates in the license-exempt 24.05-24.250GHz (24GHz) band.
• Full-duplex transmission:
• DS-3 (DSX-3, per Bellcore GR-499-CORE)
• Ethernet 10/100Base-T (per IEEE 802.3)
• Easy configuration, installation, operation, and maintenance.
• Integral web server for configuring, operating, and monitoring using an HTML-based web browser
GUI.
• Ethernet interface used with NMSs (Network Management Systems) or EMSs (Element
Management Systems) using SNMP (Simple Network Management Protocol) traps. Supports
MIB-II (Management Information Base II) and YDI Wireless enterprise MIB.
• ATPC (Automatic Transmit Power Control).
• Self Test, BER test mode, RF and digital loop-backs.
• Reed Salomon Forward Error Correction (FEC).
• Operating and backup software versions contained in Link CX-24 memory, operator-selectable.
1.7 Link CX-24 Basic Structure
1.7.1 Radio Links
Each radio link includes two Link CX-24 terminals. Each terminal consists of a Link CX-24 radio with an
integral 12” diameter reflector antenna. Generally, the Link CX-24 terminals are mounted outdoors on a
tower or building.
1.7.2 Data Stream
The DS-3 or Ethernet data signals enter the Link CX-24 and are modulated into the RF data stream. The
RF radio signal radiates from the local antenna and propagates to the remote antenna. At the remote
terminal, the received signal is demodulated and de-multiplexed, separating the payload data and the
overhead management data.
1.7.3 Link CX-24 Models
The Link CX-24 is manufactured in two configurations, namely versions with DS-3 or Ethernet carried
over the 24GHz link.
Link CX-24 models are described in Table 1.1.
Table 1.1 – Link CX-24 Models
Model
Transmit
Band
Frequency
Band
Link
Carries
Antenna
CX-DS3-24-LO
CX-DS3-24-HI High
Low
24.05-24.250 GHz DS-3 Integral 12” reflector
CX-ETH-24-LO
CX-ETH-24-HI High
Low
24.05-24.250 GHz
Ethernet
(45 Mbps)
Integral 12” reflector