Patton electronic 2500 Series user manual Operation, LED Descriptions, Status Displays

5.0 OPERATION

Once the Model 2500 Series unit is installed and configured properly it is ready to operate. This section describes the function of the LED indicators, the status displays, the use of loopback test modes, and Switched 56 dialing procedures (Models 2510 and 2520 only).

5.1 LED DESCRIPTIONS

The Model 2500 Series is equipped with nine LED indicators that monitor the status of communication. Figure 5 (below) shows the location of the LEDs on the Model 2500 Series front panel. Note also the location of the test mode switches and RS-232 control port (used in Switched 56 dialing as well as software configuration). Following Figure 5 is a description of each LED’s function.

Figure 5. The Model 2500 Series' front panel LEDs

•“TD” and “RD” will glow red to indicate an Idle condition or Binary “1” data on the respective terminal interface signals. Green indicates Binary “0” data.

•“CTS” will glow red to indicate an Off condition. Green indicates an On condition. When on, the unit is ready to send data. If CTS remains off, check the Forced RTS, Circuit Assurance and Anti-Stream settings.

•“CD” will glow green to indicate that the a valid carrier is present. Red indicates that there is no valid carrier detected.

•“DTR” will glow green to indicate that the DTR signal from the terminal is active.

•“NS” will glow red to indicate No Signal. This means the Model 2500 Series receiver does not detect a signal from the

digital service provider (or, in the case of short-haul operation, from the remote Model 2500 Series). If NS is lit, check for an unplugged cable, broken wire or an incorrect Line Rate selection.

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•“OS” glows red to indicate Out-of-Service. This means the Model 2500 Series has received an Out-of-Service signal from the digital service provider and indicates a problem with the service provider’s equipment. If this condition persists, contact your service provider.

•“ER” glows red to indicate that an error has been detected in the received signal. ER will flash if the Model 2500 Series receives illegal bi-polar violations or framing errors. During the 511 or 511/E test, ER will flash to indicate that the Test Pattern Detector has detected a bit error.

•“TM” glows red to indicate Test Mode. It will light if the unit is placed into a test mode. The unit can be placed in test mode by the local user, by the remote user or by the service provider.

5.2STATUS DISPLAYS

The Model 2500 Series lets you use a VT-100 type RS-232 terminal to display the current configuration settings, as well as the line/loop status.

5.2.1 DISPLAYING CONFIGURATION SETTINGS

To display the current settings of the hardware and /or software switches, go to the Main Menu (see Section 4.2) and select item 2, “Read Configuration”. This will take you to the Read Configuration Menu (below).

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