Patton-electronic X.21 Interfaces Manual do Utilizador descarregar pdf (Página 12)

The DCE/DTE strap is located near the DB15 connector on the top side

of 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 toward

the DB-15 connector, the X.21 port is wired as a DCE). Reverse 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.

Note

If the 2707/D is conﬁgured as a DTE, the clocking mode must

be set for external clock.

4.3 POWER CONNECTION

Universal AC Power (100-240VAC)

The Model 2707 uses a 5VDC, 2A universal input 100-240VAC, 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 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.

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 18 19 20

Sem comentários

Patton-electronic X.21 Interfaces Manual do Utilizador Página 12