User Guide
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When the SL-6 is attached, the DC voltage indicator (battery icon) on the 688’s
Main screen will display NP or SL to indicate which power source is active.
External DC Power via SL-6
Normal Voltage
(Green)
Battery Power via NP-1 in SL-6
Warning Voltage
(Yellow)
L
The color, which could also appear red (critical) or orange (low voltage), indicates
a source’s power level.
Power Screen
When the SL-6 is attached to the 688, the mixer’s Power screen displays the
voltage level of the attached NP-1 battery, the SL-6 external DC power source,
and the SL-6 PowerSafe battery, in addition to the 688’s own power sources.
SL-6 DC Outputs
The SL-6 right panel features four DC power outputs via locking coaxial connec-
tors (numbered 1 through 4) and a USB charging port. Outputs 1 through 4 are
12 V DC outputs that draw from the active SL-6 power source. Outputs 1 and 2
are isolated and do not share a common ground with the system.