Patton electronic 2450 DTE Terminal Connection, AC Power Connection, 1 120 VAC Power US

4.2 DTE (TERMINAL) CONNECTION

The Model 2450 is wired to connect to a DTE. If your terminal device is DCE, call Patton Technical Support at (301) 975-1007 for specific installation instructions.

Four versions of the Model 2450 are available, with respect to DTE interface and connector type (see Appendix C). All versions connect to the DTE using a straight through cable. When constructing or purchasing your interface cable, refer to the pinout diagrams in Appendix D.

4.3 AC POWER CONNECTION

Power is supplied to the Model 2450 by a 10 VAC, 1 A wall mount transformer. This transformer connects to the Model 2450 by means of a cannon jack on the rear panel. The Model 2450 is powered-up as soon as it is plugged into an AC outlet–there is no power switch.

4.3.1 120 VAC Power (US)

The 120 VAC adapter supplied with the standard version of the Model 2450 is a “wall mount” type, and may be plugged into any approved 120 VAC wall plug.

4.3.2 230 VAC Power (IEC)

The 230 VAC adapter supplied with the “international” version of the Model 2450 is equipped with an IEC-320 shrouded male connector. This connects with one of several available country-specific power cords (see the ordering information in Appendix C). You may purchase these power cords from Patton Electronics, or from a local vendor of your choice.

5.0 OPERATION

Once you have configured the Model 2450 properly (see Section 3.0) and made line, DTE and power connections correctly (see Section 4.0), you are ready to operate the unit(s). (Note: the unit is operational as soon as power is applied–there is no power switch.) This section describes the LED status monitors, and use of the built-in V.54 and V.52 test modes.

5.1 LED STATUS MONITORS

The Model 2450 features six front panel status LEDs that indicate the condition of the unit and communication link. Figure 6 (below) shows the front panel location of each LED. Following Figure 6 is a description of each LED's function.

Model 2450 MiniLink-I 56/64 CSU/DSU

V.54 Test

Modes

TD RD CD NS Error Test

511	Remote
511E	Normal
	Local

Figure 6. Front view of Model 2450

•“TD” (Transmit Data) glows red to indicate an Idle condition or Binary “1” data. Green indicates Binary “0” data.

•“RD” (Receive Data) glows red to indicate an Idle condition or Binary “1” data. Green indicates Binary “0” data.

•“CD” (Carrier Detect) glows green when carrier is active. In 64 Kbps mode, CD glows red if there is no carrier, or if a bipolar violation occurs. In 56 Kbps mode, CD glows red if there is no carrier, if an Out-of-Service or Out-of-Frame violation occurs, or if idle code is detected.

•“NS” (No Signal) glows red when there is no valid carrier. This means the Model 2450 receiver has not detected a valid signal from the digital service provider, or, in the case of short-haul operation, from the remote Model 2540. If NS is lit, check for an unplugged cable, broken wire or an incorrect Line Rate selection.

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