Patton electronic 1004ABRC user manual DTE as DSR or RI JB6 & JB7, THE MODEL 1000R16 RACK CHASSIS

DTE as DSR or RI (JB6 & JB7)

Because this rear card is designed to function in more applications than the Model 1004ABRC, this jumper must be installed only in one position. Place the jumper across pins 1&2 so that the terminal (DTE) sees DSR as high when the DTE raises DTR. The other positions, across pins 2&3, are for Ring Indicate as defined by EIA/TIA-561. The RI function is irrelevant (and on the Model 1004ABRC is also discon- nected) and can cause improper operation if the jumper is installed incorrectly.

JB6 & JB7

Position 1&2 = DSR

Position 2&3 = N/A

4.0 INSTALLATION

This section describes the functions of the Model 1000R16 rack chassis, tells how to install front and rear Model 1004ABRC cards into the chassis and provides diagrams for wiring up the interface connec- tions correctly.

4.1 THE MODEL 1000R16 RACK CHASSIS

The Model 1000R16 Rack Chassis (Figure 5) has sixteen short range modem card slots, plus its own power supply. Measuring only 3.5” high, the Model 1000R16 is designed to occupy only 2U in a 19” rack. Sturdy front handles allow the Model 1000R16 to be extracted and transported conveniently.

Figure 5. Model 1000R16 Rack Chassis with power supply

4.1.1 THE RACK POWER SUPPLY

The power supply included in the Model 1000R16 rack uses the same mid-plane architecture as the modem cards. The front card of the power supply slides in from the front, and the rear card slides in from the rear. They plug into one another in the middle of the rack.

The front card is then secured by thumb screws and the rear card by conventional metal screws.

WARNING! There are no user-serviceable parts in the power supply section of the Model 1000R16. Voltage set- ting changes and fuse replacement should only be per- formed by qualified service personnel. Contact Patton Electronics Technical support at (301)975-1007 for more information.

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