Mike's PBX Cookbook

Configuring an MRV


The MRV provides IP (network) access to serial COM ports, such as PBX Core or MGC TTY's. In a PBX environment, the network side is generally connected to the ELAN data switch - however, before doing this, the MRV needs to be configured.


To configure the LX-4000T MRV for the first time:

1Connect Hyper-terminal to the DIAG port, Port 0 - Values are 9600,8,N, and Xon/Xoff flow control (or NONE).

2The "Main Menu" displays, and the unit starts loading after 8 seconds.

3"... would you like to run Initial Connectivity Setup? y/n" displays. Press y (yes).

4Enter the Superuser password: system.

The Quick Configuration menu displays:

Quick Configuration menu

1 Unit IP address 
2 Subnet mask 
3 Default Gateway 
4 Domain Name Server 
5 Domain Name Suffix 
6 Cluster Secret
7 Superuser Password
8 Exit and Save 

Enter your choice:

5Enter the appropriate values for IP address, Subnet mask, and Gateway. Press 8 to Exit and Save.


1 Unit IP address
2 Subnet mask
3 Default Gateway
4 Domain Name Server 
5 Domain Name Suffix 
6 Cluster Secret
7 Superuser Password	Not Changed
8 Exit and Save 

Is this information correct? (y/n):

6Press y, then Save the configuration to flash memory.

7Press Enter several times to display the Login: prompt. The default login name is InReach, the default password is access

8Enter the following commands at the InReach (password: system) command prompt:

InReach:0 >enable
Password: ******
InReach:0 >>config port async 1-16 speed 9600
InReach:0 >>config port async 1-16 no autohangup
InReach:0 >>config port async 1-16 no authentication
InReach:0 >>config port async 1-16 no authentication outbound
InReach:0 >>save config flash
InReach:0 >>

Note: At the InReach:0 >> prompt, type setup to re-run the setup utility, eg: to change IP addresses.

Accessing and Configuring the GUI:

To perform this procedure, you need a PC with Java Runtime Environment (JRE) 1.4.2 or later installed. A suitable Java installer is on the supplied CD. You must also have correctly programmed the MRV with the correct IP adresses (as above) before hand.

  1. In a browser window, type the IP address of your LX-4000T unit. The LX-Series Console Access page displays.

  2. Click on the Launch Secure Console button.
  3. If Java is correctly installed, a Security Warning window displays:

  4. Accept the Security prompt. The Security Warning window closes.
  5. Enter your Username and Password, and click Login.
    The defaults are username: InReach and password: access.

Using Web Configure Mode

  1. If you log in as a "user", the following window displays:

  2. To log in as a "superuser", click the Admin button on the toolbar and enter the default Superuser password: system.
    You can now configure the unit via the GUI.
  3. Click on the menu items on the left side of the window.
    For example, selecting Ports: Async opens the Async ports window.

  4. Configure the Async ports as required.
  5. Connect the (PBX) TTY's with the special RJ-45 to DB-9 cables, and test.
    The MRV is a DTE device, so some null modem adapters maybe required.

To connect to a serial port

Devices connected to serial ports 1-48 on the LX 4048T are assigned Telnet port numbers 2100-6800 by default. The corresponding SSH port numbers are 2122-6822. For example:

Port # Telnet and SSH port numbers
Port 1 21002122
Port 2 22002222
Port 3 23002322
Port 4 24002422

You can gain Telnet/SSH access to a serial device by using the LX-IP address and default port number of that serial port.

For example:

> telnet 2100

Note: if you use the standard DOS telnet program in Windows, there is no colon before the port number, in UNIX there is.

To access the CLI port from a terminal attached to a serial port

  1. Press Return several times to autobaud (if autobaud is enabled) the port and get the Login: prompt.
  2. Enter your login name (default is InReach).
  3. Enter your password (default is access).
  4. The Superuser password default is system.

Configuration Backup

You'll need a TFTP server, such as PumpKIN, running on your network.
Telnet into your MRV, login as a Superuser, and issue the following command:

> save configuration network <filename> <ip>

A backup file will be placed in the TFTP servers root directory.

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