ATL Telecom AM2048 - Manual (Page 23)

ATL TELECOM USER GUIDE
AM2048A
43
7.6.1.3 Resetting to Factory Default Configuration
Press the Local Loop and Loop Back buttons together, and then with the buttons still pressed,
press the Remote Loop button as well. The unit will automatically restart with all of its
configuration data cleared.
Note: When the units reboots it will be configured as a “Slave”.
7.6.1.4 Setting Loops
The following test loops may be set using the front panel buttons.
• Local Loop
• Loop back
• Remote Loop
N.B. These buttons may be disabled from the ‘Test > User Port’ menu.
User Local Loop
User Loopback
User Remote Loop
7
42 ATL TELECOM USER GUIDE
AM2048A
7.6 FRONT PANEL
7.6.1 Controls
The front panel controls have a dual purpose. For normal operation, the LED indicators display
status information as described in section 7.6.2 and the push buttons are used for applying
test loops as described in section 7.6.1.4. These controls can however, also be used to
configure the modems without the need to plug in a VT100 terminal or PC. To do this, the
front panel controls must be enabled for “Full Control” (default setting) and the modem set
to Programming Mode.
7.6.1.1 Disabling the Front Panel Controls
The modems are delivered with the front panel controls fully enabled as the default
configuration. This means that both test loop activation and modem programming are
possible from the front panel. They can however be disabled to prevent unauthorised persons
from using them to interfere with the settings of the modem. The VT100 management system
(which is password protected) is used to enable or disable the front panel controls via the
Configuration > Front Panel menu (see the VT100 Management User Guide for details). The
options available are “Full Control” (default), “Loops Only” and “Input Disabled”.
7.6.1.2 Programming Mode
To enter the programming mode, press the Local Loop and Loop Back buttons together and
then release them. Upon releasing the buttons, the Status indicator starts to flash. This
indicates that the modem is in programming mode and will continue to flash for
approximately 30 seconds after the last programming action. Programming is carried out using
the Local Loop and Loop Back buttons with the LED indicators showing the parameter
numbers and their values, and the Remote Loop button is used to store the new parameter
values causing the modem to reboot. If the values aren’t stored within the 30 second timeout
period, the modem will exit programming mode (Status Indicator stops flashing) and the new
parameter values will be discarded.
Refer to Appendix C for a full explanation on entering parameters using the front panel
controls.