
Preparing for Installation
114948-A Rev. A 1-7
*. These jumpers determine the output voltage levels on the unbalanced driver devices. We
recommend that you leave the jumpers in the ±12V position for correct unbalanced operation.
† When configuring for V.35, place the S11 jumpers (A through E) in the unbalanced position to
support V.35/V.28 control signals.
Table 1-1. Single Sync/Single Ethernet Jumper Settings
Option Setting Jumper
Interface voltage ±5 or ±12 ±12 for RS-232, V.28, V.35
±5 for RS-423*
Com 1 Unbalanced signal for RS-232,
RS-423, V.28†
Balanced signal for X.21*
Balanced signal for RS-422*
S7
S8
S7
S8
S11
E
A
Comentarios a estos manuales