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3. Layout und Jumpereinstellungen
3.1 Layout
JP1, JP2 für S1:
Mode Einstellungen
RS232/S422/485
J1: S1
J3: S2
JP4, JP5 für S2:
Mode Einstellungen
RS232/S422/485
3.2 Jumper-Einstellung
Es gibt zwei Jumper-Reihen um die Ports S1 und S2 einzustellen
1. Mode Einstellungs-Jumper: JP1/JP2 für S1 und JP4/JP5 für S2
2. Abschlusswiderstand Jumper: JP2 für S1 und JP5 für S2
3. Echo oder No Echo Jumper: JP2 für S1 und JP5 für S2
4. TXD Control Einstellungs-Jumper: JP3 für S1 und JP6 für S2
JP2 für S1 (JP5 für S2):
Mode Einstellung
TERM
ECHO
MO
RS232/422/485
M1
Mode Einstellung
H
L
Seriell RS232/422/485 PCI Karte
JP8: Aux
JP3: S1 RS485
Anschluss vom
TXD Control
PC Netzteil
J5: Aux
Strom Anschluss
J2, J4:
Nur für Testzwecke
im Werk
JP6: S2 RS485
TXD Control
JP1 für S1 (JP4 für S2):
Umschaltung zwischen RS232 und
RS422/485. Der Mode RS422 und
RS485 haben die gleiche Einstellung
232 422/485
4
Seriell RS232/422/485 PCI Board
2. Termination Resistor Enable/Disable:
JP2 (for S1) and JP5 (for S2):
This jumper enables/disables the 120 Ohm termination resistor between DATA+ and
DATA- of the RS485 transceiver:
TERM
TERM = L
ECHO
TERM = H
MO
M1
H
L
3. Echo or No Echo Settings:
JP2 (for S1) and JP5 (for S2):
This jumper is to set the transmission data will be echoed back or not. The Echo mode
is useful for the application program to detect if the RS485 bus has collision. If the ech-
oed data was not equal to the transmitted data, then the bus was in a collision. This
setting only affects the RS485 2-wire mode. It doesn't affect RS485 4-wire, RS422, and
RS232 modes.
TERM
ECHO = L
No Echo Data (Default)
ECHO
ECHO = H
Transmission data will be echoed
MO
M1
H
L
4. TXD Control Setting:
This jumper is used to select the control signal for the transmitter buffer in RS485 2-
wire mode. There are 2 settings are selectable, one is "MAN" (manually) the other
one is "AUT" (automatically, factor default), please keep it at "AUT" in all cases.
JP3 for S1 Port
JP6 for S2 Port
MAN AUT
AUT = TXD Control is Automatic (Default)
ON
= TXD Control is Manual
(Needs to be Configured Manually in the Device Manager)
5. Factory Use Only Connectors (J2 and J4):
This connector is only used for factory production purpose, please don't install any
jumper or cable on it!
English
Termination Resistor Disabled (Default)
Termination Resistor Enabled
13
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