NTI UNIMUX SERIES USB KVM SWITCH
14
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: Switch 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)
2
3
3
3
5
5
5
2
2
7
8
1
4
6
Jumper
Jumpers
Not connected to
source connector
(Unit #2)
9D Female
9D 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 50 feet.
