Dipswitches, Fig. 7 fig. 8, Wiring schematic of matrix-y-1 cable – Network Technologies KEEMUX-P2 User Manual
Page 9
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ON
OFF
1 2 3 4 5 6 7 8
Dipswitches
The dipswitches located next to the RS232 connection (Fig. 8) are used to configure the baud rate and
address of the KEEMUX. The default baud rate is 9600. The default address is 1. Use the charts
below to change the baud rate and address as needed.
DIP SWITCH
The unit powers up with a default
baud rate of 9600 and a fixed data
protocol of 8 data bits, no parity, and
1 stop bit. To change the baud rate,
unit address, and loop back (more on
the unit address and loop back later),
an 8-SPST DIP switch on the panel
near the DB-9 connectors can be
used. This table shows the DIP switch
functions and their default positions.
SWITCH FUNCTION
DEF-
AULT
1
loop back
ON
2
baud rate 0
ON
3
baud rate 1
ON
4
baud rate 2
ON
5
unit address 0
ON
6
unit address 1
OFF
7
unit address 2
OFF
8
unit address 3
OFF
BAUD RATE
The baud rate can be
changed by powering
down the unit,
changing the DIP
switch, and then
powering back up.
This table shows how
to set the baud rate.
DIP SWITCH
BAUD
RATE
4
3
2
OFF OFF
OFF 300
OFF OFF
ON 600
OFF ON OFF 1200
OFF ON ON 2400
ON OFF
OFF
4800
ON OFF
ON 9600
ON ON
OFF
9600
ON ON
ON 9600
DIP SWITCH
UNIT ADDRESS
8
7
6
5
OFF
OFF
OFF
OFF
0 (not valid)
OFF
OFF
OFF
ON
1
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
UNIT ADDRESS
To allow multiple units to be controlled from a single host
port, the remote interface is designed to allow "daisy
chaining" of up to 15 units. By setting the appropriate
DIP switches, each unit can be given a unique address
(1-15). Then the unit will only respond to commands on
the bus if its address is embedded in the command. The
"loop back" DIP switch should be ON for the last unit in
the chain, and OFF for all other units. If only one unit is
being controlled, DIP switch 1 should be left ON. This
table shows how to set the unit address.
(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
Fig. 7
Fig. 8