1261B User Manual
Configuring The 1261B 2-16
Racal Instruments
Ó
1995
Fan Speed Range
(HI - LO)
Selection (For
Models With
System Monitor)
The 1261B is shipped with the fan speed range configured to the
HI
setting for rack mount (or High Speed Fan) models, and to the
LO
setting for bench top (or Low Noise Fan) models. If your
application requires more cooling or lower acoustic noise levels
you may re-configure the fan speed range as described below,
and in
Figure 2-10
Fan Speed Range (HI -LO) Selection.
1. Remove SMS or EMS module. See Removal and
Replacement in Chapter 7.
2. Position the jumper at J14 between pins 1-2 for the
LO
setting, or between pins 2-3 for the
HI
setting.
3. Replace the SMS or EMS module. See Removal and
Replacement in Chapter 7.
Figure 2-10, Fan Speed Range (HI -LO) Selection
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