Connecting Multiple Sw Usbs In A System - Extron electronics SW USB Series User Manual

Figure 9.

Connecting Multiple SW USBs in a System

The USB specification states that a maximum of five hubs (or five SW USBs) can be
connected in a series.
NOTE: Do not exceed five cascaded hubs and a total of 127 peripheral devices in the
Figure 9 on the next page shows an example of a single host with the maximum of five
SW USB switchers cascaded in a series.
U B
T H B 3
P U U S
U T
B O
U S
B 2
U S U S
B 1
U S
T
P U
IN
G 4
P C
IN
C H
W IT
B S 3
P C
U S
2
P C
1
P C
R
W E
P O
M A X
V
12
1. 5A
Extron
SW4 USB
USB Switcher
A
0 .2
4 0 V
0 -2
1 0
H z
-6 0
5 0
Extron
SW4 VGA Ars
VGA/Audio Switcher
Using the SW USB with a Contact Closure Device and an AV Switcher
entire system.
2
-2 3
R S
T
A C
N T
C O 4
3
R x
T x 2
1
T x
-2 3 2
R U
R S T H
S S
P A
B 4
RS-232
Loop-through
A r s
G A
6 V
S W
T E
M O
U T
R E
T P
O U
R
U T
T P
O U L
3
T S
P U
IN
4
1
2
Contact Closure
Extron
CCR 4BLB
Controller Module
SW USB Series • Installation 13