Specifications

24 Selecting an Interface
Selecting an Interface
The Eiconcard S5x is capable of connecting as a DTE to devices
which support the V.24, V.35, or X.21 interface. It can also connect
directly to a host computer or back-to-back to another Eiconcard.
The Eiconcard S5x is shipped with the HSI port set to the V.24 and
V.35 interfaces. If you wish to use the X.21 interface, you must
reposition the jumper located next to the HSI connector.
To change the jumper from position A (V.24/V.35) to position B
(X.21), lift it straight up off the board, then position it above the
center and rightmost rows of pins. Carefully press it down onto the
pins. Figure 13 shows the jumper in position B.
If you find the jumper hard to move, use a small slotted screwdriver
to edge it up gradually from each side until you can lift it off.
Figure 13. Selecting an Interface
To select the X.21 interface,
position the jumper on the two
rows of pins to the right of the “A”
printed on the Eiconcard.
AB