3Com CM 4000 Switch User Manual


 
Control Panel Operation
CP 3832 / 3864
6−103CM 4000 Installation and Operating Manual
CHOP (CP 3864 ONLY)
To chop* an output:
1. With PRESET off, select the first source.
2. Press PRESET.
3. Select the second source, and press CHOP.
The CHOP button will blink red, with the first source displayed in the Current window, and the second source displayed in
the Preset window.
The chop operation will automatically stop after approximately three minutes. The chop will finish with the source in the
Current window remaining switched to the destination. The chop may be manually terminated by performing another source
selection.
For additional chop information − see page 6−13.
PROTECTING OR UNPROTECTING AN OUTPUT
Protecting an output prevents that output from being switched by other panels in the system. The protecting panel may still
change the outputs.
To protect an output:
1. Press the PROT/LOCK button.
The Preset display will ask “Lock?”
2. Press the PROT/LOCK button again.
The Preset display will ask “Protect?”
3. Press TAKE.
This has the effect of protecting only those levels this control panel can control (as defined on the CP Level set assigned
to the panel). The button will blink “high” green, indicating the output has been protected by this panel. If a CP 3810
expansion panel is associated with the CP 3832/3864 panel, the output button on the expansion panel will also blink
green.
If a CP 3832 or CP 3864 at another location selects this output for control, that panel’s PROT/LOCK button will blink
red. If a CP 3810 expansion panel is associated with the remote CP 3832/3864 panel, the output button on the expansion
panel will also blink red. If the remote panel attempts to switch this output, a “PROTECT” message will appear, along
with the name of the protecting panel.