Programming instructions

Accessing The DSS/BLF Console Button Levels
The IB24X and IB48X DSS/BLF consoles have four levels of buttons, quadru
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pling the consoles’ button capacity. The four buttons at the bottom of each
console allow you to select which button level is currently active. To change
button levels, press one of the buttons at the bottom of the console. The leftmost
button activates level one, the next button activates level two, and so forth. A
light beside the appropriate button lights to indicate which level is currently
active. You can use one level on the IB48X and two levels on the IB24X.
84 Attendant Manual - DSU II Digital Expandable System
Other Features GCA70-245
ib48x
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IB48X DSS/BLF Console
ib24x
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IB24X DSS/BLF Console