Patton electronics NetLink 2707C User Manual

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Patton electronics NetLink 2707C User Manual Manual pdf 12 page image

11The DCE/DTE strap is located near the DB15 connector on the top sideof the board. The arrows on the top of the strap indicate the configura-tion of the X.21 port (for example, if the DCE arrows are pointing towardthe DB-15 connector, the X.21 port is wired as a DCE). Reverse theDCE/DTE orientation by pulling the strap out of its socket, rotating it180º, then plugging the strap back into the socket. You will see that theDCE/DTE arrows now point in the opposite directions, showing the newconfiguration of the X.21 port.Note If the 2707/D is configured as a DTE, the clocking mode mustbe set for external clock.4.3 POWER CONNECTIONUniversal AC Power (100-240VAC)The Model 2707 uses a 5VDC, 2A universal input 100-240VAC, powersupply (center pin is +5V). The universal input power supply has a maleIEC-320 power entry connector. This power supply connects to theModel 2707 by means of a barrel jack on the rear panel. Many interna-tional power cords are available for the universal power supply.The Model 2707 powers up as soon as it is plugged into an AC outlet--there is no power switch.