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24

DLM4000 User Guide

PN 161-09997-003A

Feb 2005

Appendix B
CCDF Module  

When Installed

Description

The CCDF module is designed to allow Data-Linc Group dial-up modems to make their connection when continuous RS232
data is flowing into its RS232 port. This device is designed for use with Data-Linc Group dial-up modems DLM4000/DL and
DLM4100/DL.

When a given modem is in dial-up mode it is also in command mode. Any data sent into the RS232 port while the modem is
trying to dial will cause it to disconnect, thus the need for the CCDF.

Installation

Installation of the module is simple. No external power is required for the CCDF module. The module has a male DB25
connector which plugs into the modem. The other end of the module is a female DB25 connector which is connected to the
host device via data cable.

Note:

 The module is installed between the modem and the host device that is transmitting information constantly.

Operation

Internal circuitry monitors the carrier detect line of the dial-up modem and routes the received RS232 signals depending on
the carrier detect line status. If there is no carrier detect established on the modem the module will pass incoming RS232
data to ground. After the modems have successfully compledted the initiation sequence the carrier detect line of the modem
goes high and RS232 data is allowed to flow into the modem for transmission over the phone line.

CCDF

Summary of Contents for DLM4000

Page 1: ...R GUIDE I NDUSTRIAL D ATA C OMMUNICATIONS It is essential that all instructions contained in the User Guide are followed precisely to ensure proper operation of equipment Dial Up Leased Line Modem DLM4000 ...

Page 2: ...PN 161 09997 003A Feb 2005 Product User Guide ...

Page 3: ...ifying Operation 8 Setting Up Equipment for Bench Test Verification 9 Setting Up and Using HyperTerminal for Testing 10 Command Descriptions 13 Registers 17 Technical Specifications 19 Troubleshooting 20 Technical Support 22 Product Warranty 22 Return Material Authorization 22 Contact Information 22 Appendix A Enclosure Dimensions 23 Appendix B CCDF Module 24 Appendix C Auto Answer Module 25 ...

Page 4: ...2 DLM4000 User Guide PN 161 09997 003A Feb 2005 ...

Page 5: ...e leased line must be an analog voice grade line or unshielded twisted pair and must be two wire The DLM4000 will not work on a digital line 5 The DLM4000 is an asynchronous modem and therefore will not operate directly with synchronous protocols 6 Handshaking lines such as DTR and RTS are not required for this modem and are ignored per the standard configuration 7 Error correction and compression...

Page 6: ...06 or email sales data linc com Pin Identification for the port 13 1 25 14 1 n i P d n u o r G e v i t c e t o r P 2 n i P C L P e h t m o r f m e d o M e h t o t n i a t a D I D 3 n i P C L P e h t o t n i m e d o M e h t f o t u o a t a D O D 4 n i P t l u a f e d y b d e r o n g i m e d o M o t C L P m o r f d n e s o t t s e u q e R S T R 5 n i P d e l b a s i d s i l o r t n o c w o l f C L P...

Page 7: ...Line System Example Diagram 2 Leased or dedicated wire application Multipoint operation is not an option Only a point to point link is possible in Leased Line Mode DLM4000 425 882 2206 DATA LINC GROUP C T R DLM4000 425 882 2206 DATA LINC GROUP C T R DLM4000 425 882 2206 DATA LINC GROUP C T R DLM4000 425 882 2206 DATA LINC GROUP C T R Master Station RS 232 Dial UP Phone Connection to Telco Network ...

Page 8: ...e h w s t h g i L y d a e R l a n i m r e T a t a D R T c n i L a t a D e h T d e t c e t e d s i l a n g i s R T D n e h w s e h s a l F R T D s a d e t o n e D R T D e r o n g i o t s i t l u a f e d p u o r G t c e t e D r e i r r a C D C d e t c e t e d s i r e i r r a c s m e d o m e t o m e r e h t n e h w s t h g i L D X T r o a t a D d n e S D S r o m e d o m e t o m e r e h t o t a t a d ...

Page 9: ...vice and only the two center connection points of the RJ11 jack are used DLM4000 24V Connection Points 24 VDC The power connection to the DLM4000 24V is a terminal block The connection points are designated in the above diagram There is no on or off switch on this version RS232 The connection for the RS232 port on the modem is a DB25 female connection This device is considered a DCE PHONE OUT For ...

Page 10: ...rial port of the DLM4000 5 A phone line simulator or preferably two direct dial up lines Components Required for Leased Line Verification 1 A desktop or laptop computer 2 Two DLM4000 modems configured for leased line operation 3 A serial cable for connection to the computer Refer to diagram below 4 A paperclip or jumper wire for the serial port of the DLM4000 5 A phone cord or pair of wires with R...

Page 11: ...r terminal emulation program may be used The following setup of HyperTerminal may be referenced if another program is being used Follow these instructions step by step to achieve the proper configuration for bench testing DLM4000 425 882 2206 DATA LINC GROUP C T R DLM4000 425 882 2206 DATA LINC GROUP C T R Master Station RS 232 Dial Up Phone Connection to Telco Network Dial Up Phone Connection to ...

Page 12: ...will walk through launching and configuring HyperTerminal to talk to the DLM4000 modem 1 Launching HyperTerminal Click on Start at the bottom of the computer desktop and a column of options should be displayed Next select Programs Accessories Communications and then select HyperTerminal Now select the icon labeled Hypertrm exe Selecting this icon will launch HyperTerminal 2 Configuring HyperTermin...

Page 13: ...e following diagram illustrates how to accomplish this ON OFF 9VAC PHONE OUT PHONE IN 13 25 1 14 PINS 2 AND 3 JUMPERED The jumper on the serial port of the receiving modem will allow data that is being sent to the modem to be sent back to the transmitting DLM4000 The text file that is being sent will be displayed on the screen of the computer It is now time to transfer a text file Select transfer ...

Page 14: ...3 Default Setup Strings Dial Up Mode same from master or remote AT F L1 U3 0 A99 D0 R1 Q0 N1 C0 S0 1 W W254 Leased Line Mode Master AT F L1 D0 L1 R1 Q0 N1 C0 H1 S0 0 W W254 NOTE All Modes If 1200 2400 Baud used then enter line AT U3 10 W W254 Leased Line Mode Remote AT F L1 D0 L1 R1 Q0 N1 C0 H1 S0 1 W W254 Spaces betweens commands can be ommited used only to show command separation C84 ZD8 ZD7 R31...

Page 15: ... on or off hook On hook means hang up where H0 Modem goes on hook H1 Modem goes off hook L This command adjusts the volume of the modem speaker for call progress monitoring L0 Selects low speaker volume L1 Selects low speaker volume L2 Selects medium speaker volume L3 Selects high speaker volume M This is the speaker on off control M0 Turns the speaker off at all times M1 Turns the speaker on unti...

Page 16: ...ERROR CONNECT 1200 NO DIAL TONE and NO ANSWER X3 This command enables the response codes OK CONNECT RING NO CARRIER ERROR CONNECT 1200 BUSY and NO ANSWER X4 This command enables the response codes OK CONNECT RING NO CARRIER ERROR CONNECT 1200 NO DIAL TONE BUSY and NO ANSWER Z This command resets the modem Z1 Resets the modem with SCP1 stored configuration profile 1 Z2 Resets the modem with SCP2 st...

Page 17: ...ne speed This is used when the DLM4000 is in normal or reliable mode J1 Turns on the port adjustment The modem automatically adjusts it s port speed to match the on line speed N This selects the ECDC operation mode N0 Selects normal mode Error correction is disabled but the data buffer is activated N1 Selects direct mode Both error correction and the data buffer are deactivated N2 Selects ECDC rel...

Page 18: ...1200 2400 4800 7200 9600 19200 C This command controls data compression C0 Data compression is disabled C1 Enables V 42bis and MNP Class 5 data compression E This command determines if the DLM4000 will automatically retrain when telephone line quality is poor E0 Disables automatic retrain capability E1 Enables auto retrain When the line quality is poor the DLM4000 makes three attempts to re establ...

Page 19: ...ce key for editing and as the character echoed to move the cursor backwards on the screen Range 0 32 Unit ASCII Default 8 S6 Determines how long the modem waits after off hook before it proceeds to dial This delay allows the central office to detect the off hook status of the line and apply a dial tone If this is set too short this may not allow a call to go through This register is valid only whe...

Page 20: ...to be dialed is stored String An Range n 000 009 To activate location one in memory the convention would be AT A001 W Z Stores a phone number to the designated active memory location set by A Note that both Z and A use the same number String Zn Range n 0 9 An example of storing a number would be AT Z1 4258822206 W The stored number may be verified by entering AT V1 Up to 10 numbers may be entered ...

Page 21: ...l i f o r p t l u a f e d y r o t c a f 2 s e t y b 0 0 1 f o l a t o t a n i h c a e s r e t c a r a h c 6 3 h t i w s r e b m u n e n o h p e l e t d e r o t s 0 1 e c a f r e t n I 2 3 2 S R n o i t c e n n o c e l a m e F 5 2 B D e c a f r e t n I e n o h p e l e T n o i t c e n n o c 1 1 J R e r i w 2 e c n a t s i D n o i s s i m s n a r T e n i l d e d a o l o c l e T a n o d e t i m i l n ...

Page 22: ... line DLM4000 modems are powered up but they do not try to connect 1 The modems are most likely not configured for leased line operation 2 Refer to the DLM4000 requirements for the proper jumper setting in the modem The DLM4000 modems have carrier but my PLCs are not communicating 1 Make sure that the PLC is setup to use a 10 bit word and that the baud rate matches that of the modem 2 Verify that ...

Page 23: ...tions 3 Verify DLM4000 operation with a bench test 4 Verify that DLM4000 power supplies are still operating properly I cannot locate a software driver for the DLM4000 modem No driver is necessary for the DLM4000 modem We configure the modem for the application ahead of time Industrial software and logic controllers may offer additional configuration options but no software driver is required The D...

Page 24: ... workmanship for one year from date of shipment to original user Data Linc Group will replace or repair at our option any part found to be defective Buyer must return any part claimed defective to Data Linc Group transportation prepaid Return Material Authorization If a part needs to be sent to the factory for repair contact Data Linc Group s corporate office and request a Return Material Authoriz...

Page 25: ...35 cm 6 Places 0 375 in 0 953 cm 0 625 in 1 59 cm 3 63 in 9 22 cm 6 63 in 16 84 cm 10 53 in 26 75 cm 3 00 in 7 62 cm 6 00 in 15 24 cm 3 00 in 7 62 cm 1 375 in 3 49 cm 10 00 in 25 40 cm Note Enclosure Size Mounting Holes and Locations may change without notice contact Data Linc Group 425 882 2206 for the latest Enclosure Dimensions ...

Page 26: ...wer is required for the CCDF module The module has a male DB25 connector which plugs into the modem The other end of the module is a female DB25 connector which is connected to the host device via data cable Note The module is installed between the modem and the host device that is transmitting information constantly Operation Internal circuitry monitors the carrier detect line of the dial up mode...

Page 27: ... will override the activated dial up feature The time for re dial is factory adjusted to 50 of R8 s value on the AADB daughter board To change the length of time the unit takes to cycle power open the case and adjust R8 Note Data Linc Group recommends leaving R8 set at the 50 position Typical Connection Diagram The following describes the function of the connection points on the screw terminal blo...

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