Trango Broadband TrangoLINK-45TM - Manual (Page 20)

Configuration Key Concepts
Trango Broadband Wireless — TrangoLINK-45 page 20
Chapter 3 Configuration
Key Concepts
Prior to configuring the radios it is important to understand several key concepts:
Master Unit (MU) The MU is typically considered the primary radio within the link. For management purposes
it is recommended to install the MU closest to the head-end of the network.
Remote Unit (RU)
The RU is typically installed at the remote end of the link. The primary distinction between
the MU and RU is that when the radios are not associated, the MU will transmit and the RU
will listen until the wireless link is established.
Peer ID
The Peer ID is defined as the MAC address of the opposite radio. In other words, the Peer ID
of the MU is the RU’s MAC address and the Peer ID of the RU is the MU’s MAC address.
Authentication is controlled by the MAC address of each radio.
Opmode The radio has two modes of operation:
1) Opmode OFF – The radio is in a state which will not allow the establishment of
a link with another radio. This state is mainly used for administration and pre-
installation site survey
2) Opmode ON – The radio is in a state which allows it to establish a link to
another radio if the proper settings are made. This is the normal “in service”
state of the radio.
Default Opmode Opmode (on or off) which the radio enters after reboot. Note: if you telnet into a radio
within 30 seconds after reboot, the radio will remain in opmode OFF even if the default
opmode is ON.
Essentials to Establish a Wireless Link
Configuration of the TrangoLINK-45 system is simple and at a minimum requires the following settings:
1. Designate one radio’s unit type (utype) as the Master Unit (MU) and one unit as the Remote Unit (RU).
2. Program Peer ID in each radio.
3. Set MU and RU to same channel and antenna polarization
4. Set default Opmode to “ON” so that radio will automatically enter opmode after reboot.
5. Turn radios Opmode “ON”.
If all of these parameters are met, and if the MU and RU are within range and properly aligned, the wireless link will
automatically establish itself and Ethernet traffic will begin to pass between the radios.
Master Unit Configuration
Start a telnet session with one of the radios. Follow these steps for configuration.
1. Set the Unit Type (utype) to MU in one radio. (default for all radios is RU)
#> utype mu
Success.
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