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Leased Line Modem

DXL421

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SER

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S

G

UIDE

M210636EN-B

February 2005

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Summary of Contents for DXL421

Page 1: ...Leased Line Modem DXL421 USER S GUIDE M210636EN B February 2005...

Page 2: ...echanical including photocopying nor may its contents be communicated to a third party without prior written permission of the copyright holder The contents are subject to change without prior notice...

Page 3: ...Safety Considerations 4 ESD Protection 4 Warranty 5 CHAPTER 2 PRODUCT OVERVIEW 7 Introduction to DXL421 7 Assembly 7 CHAPTER 3 OPERATION 9 Installation 9 Mode Settings 10 Operator Commands 11 Point to...

Page 4: ...9 Figure 3 Mode Settings 11 Figure 4 DXL421 and ROSA in Leased Line 2 wire Poin to point 13 Figure 5 DXL421 and ROSA in Leased Line 4 wire Point to point 13 Figure 6 DXL421 and ROSA in Leased Line Mu...

Page 5: ...information for installing operating and DXL421 Leased Line Modem Contents of This Manual This manual consists of the following chapters Chapter 1 General Information provides general notes for the pr...

Page 6: ...he product ESD Protection Electrostatic Discharge ESD can cause immediate or latent damage to electronic circuits Vaisala products are adequately protected against ESD for their intended use However i...

Page 7: ...For certain products Vaisala normally gives a limited one year warranty Please observe that any such warranty may not be valid in case of damage due to normal wear and tear exceptional operating condi...

Page 8: ...ser s Guide _______________________________________________________________________ 6 ____________________________________________________________________ M210636EN B This page intentionally left blan...

Page 9: ...ms The operation mode and settings are selectable with the DIL switch and jumpers The DXL421 can be used to connect the weather station to the leased line 2 or 4 wire point to point or multi point app...

Page 10: ..._____________________ 8 ____________________________________________________________________ M210636EN B 0410 169 Figure 1 DXL421 Leased Line Modem The following numbers refer to Figure 1 above 1 DIL...

Page 11: ...rmation that is needed to operate this product Installation Install DXL421 modem onto a DIN rail Make sure that connection between the DIN rail and the grounding point is good Surge protection is incl...

Page 12: ...firmware version and the second row corresponds to the mode settings according to the DIL switch position Mode Settings The operation mode is set by a four positions DIL switch The 2 4 wire mode is s...

Page 13: ...the command mode by the command XOPEN DXL id Prior to this command the user has to press ENTER once which will wake up the RS 232 serial line XOPEN DXL id id marks the address of DXL421 modem The val...

Page 14: ...ry default is 9600 baud The speed buffer mode has to be activated by the DIL switch before using the BAUD command This command does not change modem line speed BAUD 9600 LEVEL level This command displ...

Page 15: ...to point Operation PC DTE and DXL421 Set DXL421 mode as follows originate 1200 baud and 6 0db Set PC DTE serial port 1200 baud if DXL421 is set DIL 4 ON Speed buffer 9600 mode then set PC DTE serial...

Page 16: ...ire Multi point Operation PC DTE and DXL421 Set DXL421 mode as follows originate 1200 baud and 6 0db Set PC DTE serial port 1200 baud if DXL421 is set DIL 4 ON Speed buffer 9600 mode then set PC DTE s...

Page 17: ...790 Return Instructions If the product needs repair please follow the instructions below to speed up the process and avoid extra costs 1 Read the warranty information 2 Write a Problem Report with the...

Page 18: ...heaters motors etc that were connected to the same power output What was done when the failure was noticed 4 Include a detailed return address with your preferred shipping method on the Problem Repor...

Page 19: ...Yes transil diode Reverse connect protection Yes Connector 2 pos screw terminal Indicator One green LED power on Table 5 Serial RS 232 Interface Property Description Value Topology RS 232C interface S...

Page 20: ...nvironmental Property Description Value Operating temperature 40 C 55 C Storage temperature 60 C 75 C Humidity 0 to 100 RH non condensing EMC EN 55022 Immunity ESD EN 61000 4 2 contact dis 4kV air dis...

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