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D.3 Jumper Settings
The power jumpers have been pre-
set at the factory for DC voltage
operation as shown in Tables D-1.
Table D-1. Jumper Settings for -12/-24/-48 VDC Operation
Jumper(s)
JP2
JP3, JP4
(set to same position)
For other jumper settings, refer
to the rest of this manual. (But for
the DC modems, ignore the
information in the manuals for
jumpers JP2, JP3, and JP4.)
APPENDIX D: DC Voltage Models
Setting
Pins 2 and 3 connected
Pins 1 and 2 connected
183
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