This section covers all the basics that are normally required for setting up the link using either the telnet, SSH, or serial COM port to access the units. Step by step instructions with session examples are given. The CLI interface has more functions available than the Web Interface. Simply type the “?” to see a list of available commands.
Videos are also available showing similar configuration via CLI or via web interface.
Step 1: Connect to Each Unit via one of the CLI interfaces
In all the examples given, telnet was used, but the login procedure is similar for each. Log into each ApexPlus unit using the default IP address of 192.168.100.100.
Use the windows telnet program or any other telnet client program. When prompted for the Login enter admin and for password, enter trango. The Trango Systems command line interface application should respond as follows:
Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.
C:\Documents and Settings\user>telnet 192.168.100.100
CLI login: admin
Password:
Trango System: TrangoLINK ApexPlus Command Line Interface v1.0.0
When logging into the radio unit, the operator always enters the (CLI-view)# node, from which only status of the system can be seen. To make changes to system settings, the operator must enter the (CLI-config)# node of to allow changes to the system to be made. Type the command config and the password trango. The password can be changed later.
(CLI-view)# config
Password:
Step 2: Change the Out of Band (OBM) Management IP Address
It is recommended to change the IP address on both ends of the radio first, before installing the link to ensure that no problems will be encountered accessing the units in the field from the destination network subnet
To change the IP address of the system, first check the ip settings using the ip command.
(CLI-config)# ip
IP Address: 10.14.1.41
Subnet Mask: 255.255.0.0
Gateway IP: 10.14.1.1
ETH0 MAC: 00:01:de:87:cd:ac
ETH1 MAC: 00:01:de:87:cd:ad
Next, change the IP address and subnet mask. The system will not be responsive after the change. Reconnect to the ApexPlus using the new IP address.
CLI-config)# ipconfig ip 10.14.1.41 255.255.254.0
IP Address: 10.14.1.41
Netmask: 255.255.254.0
SUCCESS
After re-connecting, change the gateway address as necessary.
(CLI-config)# ipconfig gateway 10.14.0.1
Gateway IP: 10.14.0.1
SUCCESS
Confirm that the changes are made:
(CLI-config)# ip
(CLI-config)# ipconfig
IP Address: 10.14.1.41
Subnet Mask: 255.255.254.0
Gateway IP: 10.14.0.1
ETH0 MAC: 00:01:de:87:cd:ac
ETH1 MAC: 00:01:de:87:cd:ad
Step 3: Turn the ODU Section of the radio on
Type odupower on to apply power to the Radio section of the unit. After the CLI returns the status of “on”, enter model to show the models, serial numbers, TR spacing and transmit frequency range of the unit.
(CLI-config)# odupower on
ODU Power enable: on
SUCCESS
(CLI-config)# model
OMU Model: AP-OMU-1
OMU Serial ID: 8900004
ODU Model: HP1-23-1200-5B
ODU Serial ID: R02120022
Tx Freq Min: 22400.00
Tx Freq Max: 22800.00
Freq duplex: 1200.00 (MHz)
Step 4: Set the Transmitter and Receiver Center frequency
The center frequency must be within the min and max shown in the model command and must be at least ½ of the occupied transmitter bandwidth away from the limits for proper operation.
Enter the transmit frequency in MHz (the resolution of the frequency is .250 MHz). The receive frequency will automatically be programmed as follows:
For A models, RX Freq = TX freq + Freq Duplex.
For B models, RX Freq= TX Freq – Freq Duplex.
In some cases the Freq duplex can be changed, but typically this will not be necessary. Changing the Freq duplex will automatically change the RX frequency.
First set the local end transmit frequency:
(CLI-config)# freq 21472
Tx Freq: 21472.00 (MHz)
Rx Freq: 22704.00 (MHz)
Freq duplex: 1232.00 (MHz)
Next, Set the far end transmitter frequency (separate session with the other radio)
(CLI-config)# freq 22704
Tx Freq: 22704.00 (MHz)
Rx Freq: 21472.00 (MHz)
Freq duplex: 1232.00 (MHz)
If the system has been installed and the far end transmitter is also on the link can be checked using the linktest command
(CLI-config)# linktest
LOCK RSSI MSE BER
1> 1 -45.00 -36.70 0.00E+00
Step 5: Enable Adaptive Coding and Modulation (ACM) (Optional)
If ACM is desired, the acm enable command should be used on both ends of the link.
IMPORTANT: After the ACM is enabled after initial link establishment, the speed command must be reissued.
(CLI-config)# acm enable on
ACM enable: on
SUCCESS
The two steps above must be done on both ends of the link, starting with the unit that does not have output band management or which relies on the ApexPlus IBM connection for management
Step 6: Set the Speed and Modulation
The speed setting may require a license key if the resulting payload speed is above 100 Mbps.
(CLI-config)# speed
Modulation: 128QAM
Bandwidth: 20.00
Symrate: 17.42
Speed: 111.00
(CLI-config)# speed 80 qam256
Modulation: 256QAM
Bandwidth: 80.00
Symrate: 49.50
Speed: 365.00
SUCCESS
Step 7: Enable the Transmitters
Turn opmode on on both ends of the link. This enables the transmitter on the unit. After the opmode is turned on, the TX frequency cannot be changed unless opmode is turned off again.
(CLI-config)# opmode on
Opmode: on
SUCCESS
Step 8: Verify the link is working
Run the linktest command to confirm that the link is running properly after enabling ACM. Notice that the Tx and Rx modulation levels are now shown. Now, if the link conditions degrade due to rain fading, either the Tx or Rx may downshift during the fade event. Running the linktest command again will show the lower modulation such as 64QAM, 32QAM, etc. for Tx or Rx. The RSSI will also likely change for rain fading, but may remain unchanged if the link degradation is due to multipath. The modulation/RSSI will automatically return to the set value once the fading condition has passed.
(CLI-config)# linktest
LOCK RSSI MSE BER Tx Rx
1> 1 -38.00 -35.00 0.00E+00 128QAM 128QAM
Step 9: Save the configuration
Run the config save command to save all the settings that were changed into non-volatile FLASH memory. If a power interruptions should occur, the link should re-establish itself after the interruption is over.
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