FLEXNET – FNER Expandable (Modular) Routing Switches – Installation & Operation Manual
4-5
CHAPTER 4: INITIALIZING SYSTEM FROM THE KEYPAD
network programming, particularly socket programming.
4.5.3 COMM Port Number Default Setting
The default setting of the COMM port is 9100. This number was selected because it is a port number that is not widely used
or registered by IANA (Internet Assigned Numbers Authority). Most applications use much lower numbers like 1000 or less.
4.5.4 Why Change the COMM Port Number?
In almost all cases, there is not a conflict and the port number will be left at the default of 9100. In case your network happens
to be using port # 9100 for some reason, you can change FNER’s port number to some other value to avoid communication
conflicts.
4.5.5 Reset Password
Option 2 will load the Reset Password screen shown in Figure 14.
To get to the Reset Password screen from the main menu: key sequence 2, 2, 2, 3, 2
2. System Options
2. Interface Options
2.
Ethernet
3.
Qec
Port
2.
Password
Figure 14: Reset Password
The Reset Password screen enables you to reset the COMM port access password to the FLEXNET-specified default. Press
F4 to exit or F1 to reset the password.
4.5.6 Why Reset the Password?
The password can be set with the ELP command from a communication port on the MPC 128. You can find more information
about this in the FNER protocol document found in the appendix.
This ELP command allows the user to use almost any ASCII hex values to set the password. The user can even use ASCII
hex values that are not found on a standard keyboard. If the password is accidentally programmed with a Hex value that can’t
be typed in from a keyboard then the password needs to be reset.
