Patton electronic 3088 user manual Connecting Power, There are no user-serviceable parts in the

The DCE/DTE strap is located on the top side of the 3088/D pc board (See figure 10, below). The arrows on the top of the strap indicate the configuration of the X.21 port (for example, if the DCE arrows are point- ing toward the DB-15 connector, the X.21 port is wired as a DCE). Change the DCE/DTE orientation by pulling the strap out of its socket, rotating it 180º, then plugging the strap back into the socket. You will see that the DCE/DTE arrows now point in the opposite directions, showing the new configuration of the X.21 port. To close the case, fit the 2 halves together snugly and snap them back in place.

DB-15 Connector

DCE/DTE Strap

Figure 10. Setting the DCE/DTE Strap

5.4 CONNECTING POWER

The Model 3088 uses a 5 VDC, 2A universal input 100–240 VAC, power supply (center pin is +5V). The universal input power supply has a male IEC-320 power entry connector. This power supply connects to the Model 3088 by means of a barrel jack on the rear panel. Many interna- tional power cords are available for the universal power supply (Please refer to Appendix B for country-specific power cords.

The Model 3088 powers up as soon as it is plugged into an AC outlet-- there is no power switch.

	There are no user-serviceable parts in the
	power supply section of the Model 3088. Fuse
	replacement should only be performed by quali-
	fied service personnel. Contact Patton Electron-
	ics Technical support at (301)975-1007, via our
WARNING	web site at www.patton.com, or by e-mail at
	support@patton.com, for more information.

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