
Preparing for Installation
114948-A Rev. A 1-17
*. 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.
Table 1-5. Ethernet Synchronous Advanced Filtering-4 Jumper Settings
Option Setting Jumper
Interface voltage ±5 or ±12 ±12 for RS-232
±5 for RS-422, V.35*
S3
S4
S3
S4
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