Edgeport Industrial Installation Guide (90000409 Rev. J) – Page 3
Figure 1: Two Position DIP Switch
1 2
DS1: ON signal ground short to chassis
ground
OFF signal ground isolated from chassis
ground
DS2: not used
Configuring the DIP Switches
Two Position Switch
The two position DIP switch, located on the back
panel, connects the signal ground to chassis ground.
IMPORTANT: Do not connect signal ground to
chassis ground on more than one location in order to
prevent ground loops and potentially high currents
(figure 1).
Eight Position Switch
The Edgeport/2i also has two sets of eight position DIP switches,
located on the back panel next to their corresponding serial port.
Figure 2 shows what each switch selects in the ON and OFF
positions. Consult the diagrams in figure 3 for various
configuration options. For more configuration information, go to
the documentation section of our web site at
www.digi.com/support. If the drivers are not already installed, go
to "Edgeport Driver Installation‖ starting on page 6.
Figure 2: Eight Position DIP Switch
1 2 3 4 5 6 7 8
ON OFF
1. echo disabled 1. echo enabled
2. half duplex 2. full duplex
3. terminating 3. no terminating
resistor resistor
4. ---------- 4. set to OFF
5. set to ON 5. ----------
6. set to ON 6. ----------
7. not used 7. not used
8. not used 8. not used
Figure 3: Various Configurations for the Edgeport/2i DIP Switches
X X
Option #1: RS-422 to RS-422
X X
Option #2: RS-485 Half Duplex
End Unit with Terminating Resistor
X X
Option #3: RS-485 Half Duplex
Middle Unit
X X
Option #5: RS-485 Full Duplex
End Unit, Slave
X X
Option #6: RS-485 Full Duplex
Middle Unit, Master
X X
Option #4: RS-485 Full Duplex
End Unit, Master
X X
Option #7: RS-485 Full Duplex
Middle Unit, Slave
Key: on user’s chioce
off X doesn’t matter
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Comments to this Manuals