3Com CM 4000 Switch User Manual


 
Control Panel Operation
CP 3830
6−93CM 4000 Installation and Operating Manual
If another CP 3830 panel selects this output for control, that panel’s PROT button will blink red. If the other panel at-
tempts to switch this output, a “PROTECT” message will appear, along with the name of the protecting panel.
If a CP 3808 panel selects this output for control, that panel’s TAKE button will blink red (the CP 3808 has no Protect
button).
To unprotect the output:
1. Press the PROT button again.
The PROT button switch to “low” green. If the output has been protected by another panel, the PROT button will show
protect status by blinking red.
An output may be force unprotected, no matter which panel protected it, if the password level of the unprotecting panel is
level 90 or greater. The password level is defined on the MPK Device table (page 5−107). This operation is useful for a master
panel capable of switching any source to any destination. The operator would be required to force unlock the output prior
to changing its source selection.
For additional protect/lock information − see page 6−12.
CHOP OUTPUTS
To chop* an output, select the first source and press TAKE. Then 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
Preset window being switched to the destination. The chop may be manually terminated by performing another source selec-
tion and pressing TAKE.
For additional chop information − see page 6−13.