6
CASCADING
The KEEMUX-USBV-xU switch can be cascaded as illustrated below.
If KEEMUX-USBV-xU switches are being cascaded,
configure the dip switches accordingly (see Tables 1 and 2 on page 7).
Note:
Only one of the two ports labeled USB DEVICES on the slaves needs to be used in order for cascading to work.
1. LIMITATIONS
a.
All switches used as slaves must be the same size (all 4, 8, or 16 port).
b.
Up to 8 slaves be connected to form a maximum system size of 152 ports (1x32 port 8x16 port slaves).
c.
Slaves must be added to the master in order (slave #1 to master’s port 1, slave #2 to master’s port 2, etc).
NOTE:
Master Port 1 (with an 8-port Slave connected to it) will become ports 1-8 (1-4 for a 4-port slave). Master Unit Port 2 (with
a second 8-port Slave Unit connected) will become port numbers 9-16 (5-8 for a 4-port slave).
d.
All switches must be powered OFF during dip switch configuration.
2. CONFIGURATION:
All units are configured using the 6-position dip switch (located on the front of each unit) according to the tables on page 7 (1 and
2).
3. CASCADED INSTALLATION
a
.
Configure each switch as per the tables below before proceeding.
b.
The NTI KEEMUX-USBV-xU switch must be ON before connecting any hot cables from CPUs or other switches.
c.
Using a VEXT-xx-MM cable, connect the KEEMUX-USBV-xU slave’s MONITOR port to the master’s VIDEO 1 port.
d. With a USB-AB-xxM, connect one of the KEEMUX-USBV-xU slave’s USB DEVICES port to the master’s CPU 1 port.
e. Repeat step c. and d. 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 and CPU 2, etc.)
See Fig. 7 on page 7.
f. With a RMT extension cable, connect the master’s DAISY OUT port to slave #2’s DAISY IN port. Then connect slave #2’s
DAISY OUT to slave #3’s DAISY IN. Continue until all slaves are connected together.
Fig. 6
Cascading Switches
(slave unit 1)
(slave unit 2)
(slave unit 3)
(master unit)
REXT-SR-xx
REXT-SR-xx
REXT-SR-xx
VEXT-xx-MM
VEXT-xx-MM
VEXT-xx-MM
USB-AB-xxM
VEXT-xx-MM
VEXT-xx-MM
VEXT-xx-MM
VEXT-xx-MM
VEXT-xx-MM
KEEMUX-USBV-8U
USB
CPU
USB-AB-xxM
KEEMUX-USBV-8U
KEEMUX-USBV-8U
KEEMUX-USBV-8U
USB-AB-xxM
USB-AB-xxM
USB-AB-xxM
USB-AB-xxM
USB-AB-xxM
USB
CPU
USB
CPU
USB
CPU
USB
CPU
USB
CPU
USB
CPU
USB
CPU