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NTI UNIMUX SERIES USB KVM SWITCH
13
DIP SWITCH UNIT ADDRESS
8 7 6 5
OFF OFF OFF OFF 0 (not valid)
OFF OFF OFF ON 1 (default)
OFF OFF ON OFF 2
OFF OFF ON ON 3
OFF ON OFF OFF 4
OFF ON OFF ON 5
OFF ON ON OFF 6
OFF ON ON ON 7
ON OFF OFF OFF 8
ON OFF OFF ON 9
ON OFF ON OFF 10
ON OFF ON ON 11
ON ON OFF OFF 12
ON ON OFF ON 13
ON ON ON OFF 14
ON ON ON ON 15
Note: Pin 4 on the RS232 dip switch is not used.
In order to connect multiple switches (up to 15) with RS232 connections to the same CPU, an NTI Matrix-Y-1 cable must be used.
Connect the Matrix-Y-1 cable between the RJ45-to-DB9 serial adapter (provided with the RS232 option) and the CPU as shown in
Fig. 11.
Figure 11- RS232 connection with Matrix-Y-1 cable
Figure 12- Pinout of Matrix-Y-1 cable
(Unit #1)
(Source)
23
33
555
22
7
8
1
4
6
Jumper
Jumpers
Not connected to
source connector
(Unit #2)
9D Female9D Male 9D Male
Wiring Schematic of Matrix-Y-1 cable
Note: The "loop back" RS232 dip switch (RS232 dip
switch 1) should be ON for each unit in the chain.
NTI
SWITCH
CPU
RS232
First Unit
NTI
SWITCH
RS232
NTI
SWITCH
RS232
Second Unit Last Unit
RS232
Serial Port
Matrix-Y-1
Matrix-Y-1 Matrix-Y-1
RJ45
TO DB9
SERIAL
ADAPTER
RJ45
TO DB9
SERIAL
ADAPTER
RJ45
TO DB9
SERIAL
ADAPTER
CAT5 CABLE CAT5 CABLE CAT5 CABLE
Note: The maximum combined
RS232 cable length between the
CPU and any NTI switch cannot
exceed 15 feet.