LevelOne KVM-0420 Manual - Page 11

LevelOne Cascade Configuration Connection Before connecting a device (a computer or a Slave KVM Switch) to a KVM Switch under power, you must turn off the device. Note: The Master must have equal or more 'PC x' ports than that of the Slave, i.e., if an 8-port switch is the master, a 4-port or an 8-port switch can be a Slave, but not a 16-port one. PS/2-only models can be cascaded with USB-PS/2 combo models. The ports labeled "PC 1"~"PC 8" can be connected to either a computer or a Slave's CONSOLE port, as shown in figure 10. The ports "PC A"~"PC H" can only be connected to computers. Figure 10: Slave console connection Note: Use only 1-to-3 (PS/2) cables for connection between the Master's PC ports and a Slave's CONSOLE port in cascade application. The maximum number of computers controlled by a master/slave configuration with all 4-port units is 16 -- with 4 Slaves and each Slave connects to 4 computers, see figure 11. 19 LevelOne Figure 11: All 4-port KVM Switches in cascade The maximum number of computers controlled by a master/slave configuration with all 8-port units is 64 -- with 8 Slaves and each Slave connects to 8 computers, see figure 12. Figure 12: All 8-port KVM Switches in cascade The maximum number of computers controlled by a master/slave configuration with all 16-port units is 136 -- with 8 units of 16-port Slaves (to "PC 1"~"PC 8") and each Slave connects to 16 computers; 20