How to Change Audia/Nexia IP Settings Using HyperTerminal
RS232 CONTROL One of the many ways that Audia and Nexia can be controlled is via RS232 commands. This type of control is one of the preferred methods when using third party controllers. Sometimes it is required to gain access to a unit in order to view/change IP settings or rescue a faulty unit. In any of these cases, a unit can be accessed by using HyperTerminal. This note explains how to establish a connection via HyperTerminal to change IP Settings.
PROCEDURE 1. 2. 3.
Connect your computer serial port (Com port) to the RS232 port on the unit using a 9 pin straight-through cable. (NOT a null-modem cable) In Windows XP or 2000, open a HyperTerminal session by going to Start Æ Programs Æ Accessories Æ Communications Æ HyperTerminal. Please note that Windows Vista does not have the HyperTerminal application installed by default. The application can be downloaded from the web. In the connection description dialog, enter a name for your connection and click OK.
Figure 1 – Connection Description dialog
4.
In the Connect To dialog, under the pull-down menu labeled Connect Using, select the location of your Serial Com Port and click OK.
Figure 2 – Connect To dialog
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5.
In the COMx Properties dialog, set the Com port properties to 38400 / 8 / None / 1 / None as shown in figure 3 and click OK.
Figure 3 – COMx Properties dialog
6.
To display what’s being typed, go to File Æ Properties, and select the Settings Tab. Click on ASCII Setup and enable “echo typed characters locally”. For easier reading, you can also enable “Send line ends with line feeds” and click OK.
Figure 4 – ASCII Setup dialog
7.
To test the connection, hit the Enter key a couple of times to ensure that communication has been established. The unit should respond with a –ERR message as seen in figure 5. If “Send line ends with line feeds” was also enabled, there will be a second message from the unit every time we hit the Enter key. Please disregard these.
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Figure 5 – Error messages
PLEASE NOTE: If you will be using the configuration file loaded in the unit, make a back-up copy on your computer before proceeding with the next steps. 8. Clear out any configuration that might be loaded onto the device by typing the following command in HyperTerminal (all in capitals): CLEAR 0 DEVCONFIG And hit the Enter key. If the command is accepted, you will get a +OK response as shown in figure 6. (Please disregard the “–ERR : SYNTAX” response if “Send line ends with line feeds” was enabled in ASCII Setup window)
Figure 6 – Clear configuration response
9.
Please note HyperTerminal doesn’t allow the use of the Backspace key to correct mistakes. If you make a typing error, hit Enter, receive the error message from the unit in response, and start again. To change the unit’s IP address, type the following command in HyperTerminal (all in capitals). You may replace the IP address with the desired one: SET 0 IPADDR 192.168.1.101 And hit the Enter key. If the command is accepted, you will get a +OK response as shown on figure 7.
Figure 7 – IP address response
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10.
To change the unit’s subnet mask, type the following command in HyperTerminal (all in capitals): SET 0 SUBNETMASK 255.255.255.0 And hit the Enter key. If the command is accepted, you will get a +OK response as shown in figure 8.
Figure 8 – Subnet mask response
11.
To change the unit’s default gateway, type the following command in HyperTerminal (all in capitals). You may replace the default gateway with the desired one: SET 0 DEFAULTGW 192.168.1.1 And hit the Enter key. If the command is accepted, you will get a +OK response as shown in figure 8.
Figure 9 – Default gateway response
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12.
With Hyper Terminal still pen and the serial cable connected; power-cycle the unit. Upon boot up, it will display a welcome message with its current IP settings through the HyperTerminal window as shown below.
Figure 10 – Welcome message
You can now connect to the unit using Audia or Nexia software and the new IP settings.
If this application note did not answer your questions on the topic of “How to Change Audia/Nexia IP Settings Using HyperTerminal”, please contact Biamp Technical Support Group by phone at + 1 800 426 1457 or by email at
[email protected].
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