User's Manual
Table Of Contents
- Product Manual
- And Installation Guide
- Introduction
- Hardware Description
- Backhaul / Point-to-point Architecture
- Multipoint Architecture
- Repeater Architecture
- Mesh Architecture
- System Requirements
- Hardware Installation
- Installing and Visually Aligning Outdoor Units
- Software Configuration
- Getting Started
- Logging into the WirelessGRID NMS
- Current Settings
- Wired Network Settings
- Radio Network Settings
- WirelessGRID Bridge List
- WirelessGRID System Setup Tab
- Network Settings Tab
- Radio Settings Tab
- Admin Setup Tab
- Security Tab – Data Encryption
- WirelessGRID Authentication
- Data Encryption
- Encryption Key Manager
- Security Server (RADIUS) Settings
- Active Bridge Status Tab
- Remote Bridge (SU Station) Statistics Tab
- Firmware Update Tab
- Help Tab
- Antenna alignment and link monitoring tool
- Using the real-time signal strength monitor for antenna alignment
- Antenna Adjustment Using the real-time Signal Strength Monitor
- Specifications
- _
- _
- 4.940-4.990 GHz Public Safety Band (FCC Part 70, licensed Intl.)Non-overlapping Channels: 8 x 5 MHz, 4 x 10 MHz, 2 x 20 MHz, 1 x 40 MHz
- 5.25-5.35 GHz license-exempt (FCC, Industry Canada, Mexico)Non-overlapping Channels: 19 x 5 MHz, 9 x 10 MHz, 4 x 20 MHz, 2 x 40 MHz
- 5.47-5.72 GHz license-exempt (ETSI, FCC, ITU) with TPC and DFSNon-overlapping Channels: 44 x 5 MHz, 22 x 10 MHz, 11 x 20 MHz, 5 x 40 MHz
- 5.725-5.850 GHz licence exempt UNII & ISM Bands (ETSI, FCC, MII) Non-overlapping Channels: ISM, UNII: 25 x 5 MHz, 12 x 10 MHz, 5 x 20 MHz, 2 x 40 MHz
- Orthogonal Frequency Division Multiplexing (OFDM)
- 802.3, 802.11i draft, 802.11a hardware with proprietary bridging extensions
- Radio output power: Max: 21dBm (Set to local regulatory requirements to comply with transmit, conducted and EIRP power limits)
- Data Rate: 1 to 108 Mbps
- Sensitivity: -73 to –91dBm
- Modulation: 64QAM, 16QAM, QPSK, BPSK
- Point to Multipoint, Point to Point, Repeater (See Ordering Guide)
- AI108-4958-BSU, AI108-4958-ON2 - Order a Sector, Omni, GRID, or Panel AI108-4958-SU and -1: Flat Panel Directional AntennaAI108-4958-0-xxx: 23 dBi integrated or 28 dBi external directional antenna. External antennas may be used with local regulatory app
- Up to 7.5 miles (12 km) with built-in 23 dBi panel antennasUp to 30 miles (48.27 km) with max radio output power and optional external 34.5 dBi antennas
- Up to 30 miles (48.27 km) - N-type version (AI108-4958-ON-xxx) with max radio output power and optional external 34.5 dBi antennas
- _
- _
- Ordering Information
- WirelessGRID Worldwide Frequency Channel Plan
- Appendix A – Bench Test Procedure
- _
- Step 1. Setup a wired Ethernet network between test stations
- Step 2. Setup wired Ethernet network connections to bridges
- Step 3. Setup bridge software configuration for bridge
- Step 4. Test network connectivity across a WirelessGRID link
- Step 4a. Check throughput of WirelessGRID link (optional)
- Step 5. Running the real-time Signal Strength Monitor
- Step 6. Field deployment of WirelessGRID bridges
- Appendix B. Multi-point Bridge Configuration Log
- Appendix C: Weatherproofing RF Cable Connections
- How to Get Help
Airaya – Fast and affordable outdoor wireless bridges
Step 5. Running the real-time Signal Strength Monitor
In this document, we discuss only the use of the WirelessGRID’s exclusive real-time signal
strength monitor. At anytime and from any location in your network, this monitoring tool
can be used to check signal quality between any two WirelessGRID bridges in the
network.
Additional information on our web-based Signal Strength Indicator and RSSi Graph, and
detailed physical antenna adjustment instructions can also be found in the product
manual.
With steps 1 through 4 completed, and a ping session running to verify you’re connected
to bridge A, open a Telnet session from test station A to bridge A using the following
steps.
1. Open a Telnet session to the bridge A, IP address, port 3000 (see example
below).
NOTE
When field deploying a new WirelessGRID link or multipoint system, it is important to use the antenna
alignment utility, combined with the physical antenna alignment process, to optimize the received
signal strength between bridges. This applies to both point-to-point links and entire multipoint or mesh
networks. The longer the path between two locations, the more important these tools are in optimizing
signal strength and data throughput, and maximizing link reliability. This tool should always be run at
BOTH ends of a point-to-point link to ensure both antennas are properly aligned.
Optimal RSSi values for field deployments range between 18 and 40. Values seen in bench tests can
be as high as 75. The difference between such figures is normal, due to factors such as expected loss
of signal strength along the wireless path, antenna alignment differences, environmental issues, and
other variables.
2. At the Telnet prompt, enter the User Name and press Enter.
3. Enter the Password and press Enter.
4. Enter the Remote MAC Address of bridge B and press Enter.
When you’ve entered the remote MAC address of bridge B and pressed Enter, you
should see receive signal strength values (displayed in dBm) streaming across the
Telnet screen (see figure below). These values indicate the RSSi (signal strength) of
the RF packets sent from bridge B.
- 57 -