3Com CM 4000 Switch User Manual


 
Control Panel Operation
CP 3832 / 3864
6−102 CM 4000 Installation and Operating Manual
Breakaway Switching − Sticky* Level(s)
Blinking LEVEL button
indicates Sticky mode
Figure 6−133.
To “retain” certain levels (keep them selected after a Take), press PRESET (so that the button is flashing red). Then
press the LEVEL button. The name of the first level will be displayed in the Preset window. Advance to the desired
level by pressing LEVEL; then press PROT/LOCK. The message “Retain” will appear briefly in the Current win-
dow and the LEVEL button will blink green as an indication that sticky level switching is now in effect. Press LEV-
EL to select another level; PROT/LOCK again, etc. When all selections have been made, press CLEAR.
To make a switch when sticky levels are in effect (indicated by the blinking LEVEL button), select the desired
input. Only the sticky levels will switch.
To find out which levels are sticky, press PRESET, then LEVEL. If the first level is sticky, the word “Retain” will
appear briefly in the Current window, if the level is not sticky, the message “No retain”will appear. Advance to
the next level by pressing LEVEL; when finished, press CLEAR.
To cancel sticky levels, press PRESET, then LEVEL. The name of the first level will be displayed in the Preset
window. Advance to the sticky (Retained) level by pressing LEVEL; then press PROT/LOCK to cancel stickiness.
Press LEVEL to select another level; then PROT/LOCK again, etc. When finished, press CLEAR.
Breakaway statusing − To status a specific level of a previous breakaway level switch, use LEVEL to select the level to be
statused; the name of the input will be shown in the Current window.
“Protect/lock” output indicator:
Blinking green − The output has been protected* by this panel. See Protecting or Unprotecting an Output
below.
Red − The output has been locked* by this panel. See Locking or Unlocking an Output below.
Blinking red − The output has been protected or locked by another panel. To find out if the output is pro-
tected, or locked, and by what panel, select an input button. Then go to that panel and refer to the appropriate
section below.