User's Manual
NTI RACKMUX Console Drawer with UNIMUX Switch 
20
CASCADING 
The UNIMUX can be cascaded as shown in Fig. 21 below. Single user or multi-user UNIMUX switches may be connected 
downstream (see Figs. 23 and 24). The first switch in a cascaded system is referred to as the "master", while all downstream 
switches are referred to as "slaves". The only additional hardware required to cascade switches is a set of device and monitor 
cables for each “SLAVE UNIT” (USB-VEXT-xx-MM). All CPUs and switches can then be controlled by users using OSD 
commands with Command Mode. 
Notes: 
•  The UNIMUX used in a RACKMUX cannot be connected in a cascaded system with UNIMUX-USBV-x switches made 
prior to 10-1-04. 
•  Slaves in a cascaded system must be either all single-user switches or all multi-user switches, but not a 
combination of both. 
Cascaded Installation 
a. Using the 15HD video cable ends of a USBVEXT-xx-MM cable, connect the USB KVM slave's MONITOR port to the master’s 
 VIDEO 1 port. 
b.  Using the USB ends of the same USBVEXT-xx-MM cable, connect one of the USB slave’s USB DEVICES ports to the 
 master’s CPU 1 port. 
Note: Only one of the two ports labeled DEVICES on a slave needs to be used in order for cascading to work. 
c. Repeat step b. & c. for each additional slave, keeping in mind that each slave will connect to the next available master’s 
 port (i.e. Slave #2 to master’s VIDEO 2 & CPU 2, etc.) See Fig. 24 on page 22. 
    Figure 21- Connections for Cascading 
. 
(slave unit 1) (slave unit 2)
(slave unit 3)
(master unit)
USB-VEXT-xxMM
USBVEXT-xx-MM
USB
CPU
UNIMUX-USBV-8
USB
CPU
USB
CPU
USB
CPU
USB
CPU
USB
CPU
USB
CPU
USB
CPU
USBVEXT-xx-MM
U
S
B
V
E
X
T
-
x
x
-
M
M
U
S
B
V
E
X
T
-
x
x
-
M
M
USB-VEXT-xxMMUSB-VEXT-xxMM
UNIMUX-USBV-8 UNIMUX-USBV-8
UNIMUX-USBV-8










