User's Manual
Table Of Contents
- interWave WaveNet Link CX User Manual
- One - System Description
- 1-1 General
- 1-2 System Overview
- 1-3 Features
- 1-4 LinkCX Basic Structure
- 1-4.1 Radio Links
- 1-4.2 Data Stream
- 1-4.3 LinkCX Models
- 1-4.4 Mounting and Antenna Alignment
- 1-4.5 Interface Connectors and Indicators
- 1-4.6 Cables
- 1-4.7 Integral Antenna
- 1-4.8 External Antenna
- 1-4.9 Configuration, Operation, and Monitoring
- 1-4.10 SNMP
- 1-4.11 LinkCX Network Management Architecture
- 1-4.12 NMS Connectivity
- 1-4.13 Web-Based GUI Access Security
- 1-4.14 GUI Functions
- 1-5 Typical Applications
- 1-5.1 Internet (ISP)
- 1-5.2 Private Network Wireless Bridged LANs and WANs
- 1-5.3 PCS/PCN and Cellular Networks
- 1-5.4 Wireless Local Loop Networks and Local Exchange Bypass
- 1-5.5 Business Bypass and Local Exchange Bypass
- 1-5.6 Backhaul for Wireless MTU and MTU Access
- 1-5.7 Wireless Mesh Backhaul Networks
- 1-5.8 Wireless ATM Mesh Distribution with StreamNet
- 1-6 Specifications
- Two - Installation Steering Guide
- Three - Installation Planning
- Four - Installing the Link CX
- Five - Final Link CX Setup
- Six - Monitoring and Trend Analysis
- Seven - Troubleshooting the Link CX
- Appendix 1 - Interface Cable Pinouts
- Appendix 2 - Technical Specifications
- Appendix 3 - Using the Web-Based GUI User Interface
- Appendix 4 - Grounding and Lightning Protection
- Appendix 4 - Enterprise MIBs and Traps
Installation Planning 31
3-6 Transmit Power Planning
The Link CX normally uses a manually-set output power level. When Automatic Transmit Power Control
(ATPC) is enabled, the far-end Link CX terminal provides feedback to the near-end Link CX to lower the
transmit power to the lowest level required for clear data transmission.
Transmit power can be attenuated by 40 dB for initial configuration and interference isolation. Also, a
maximum transmit power level can be set (whether or not ATPC is enabled) to prevent interference with
other RF receivers.
3-6.1 Maximum Link CX Power Output
Since the Link CX can be ordered in a number of configurations, with different gains for each of the
associated antennas, use the Table 3-2 to determine the maximum power output. Note that the
factory-supplied external antenna attenuates the maximum power output by approximately 0.5 dB.
3-6.2 Calculating the Required Transmit Power
The Link CX will normally use the maximum transmit power listed in Table 3-2, but may need to be
attenuated when there are other receivers beyond the remote Link CX terminal (for instance, in a mesh
network). In this case, the professional installer must use the free-space calculation to determine the
actual Maximum Transmit Power to prevent interference.
Table 3-2 Maximum Power Output by Model Configuration
Model Frequency Band
Link
Carries
Antenna Max Tx Power
M100746-101
M100747-101
M100746-201
M100747-201
5.25-5.35 GHz
DS-3 or
Ethernet
(45 Mbps)
Integral
-1 dBm +21 dBi =
+20 dBm Average EIRP
M100748-101
M100749-101
M100748-201
M100749-201
5.725-5.825 GHz
DS-3 or
Ethernet
(45 Mbps)
Integral
+16 dBm +21 dBi =
37 dBm EIRP
M100748-102
M100749-102
M100748-202
M100749-202
External, 61 cm (2 ft.)
+16 dBm +28 dBi
-0.5 dB = 43.5 dBm
EIRP
M100748-102
M100749-102
M100748-202
M100749-202
External, 122 cm (4 ft.)
+16dBm +34.6dBi
-0.5 dB = 50.1 dBm
EIRP