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0049-0117-100 DSP9612 Flash Poll Modem – User Guide

10/12/2011

Rev. F1

Page 7 of 44

Applications

The DSP9612 modem is designed for point-to-point and multipoint data
communications. Figure 1-1 shows a typical multipoint configuration.

Figure 1-1. Network of Multipoint Configuration

There are a number of factors that can affect the network’s and modem’s
operation and performance. These include:

Operating

speed

2-wire or 4-wire configuration

Transmission line characteristics, noise, and line impairments

Network configuration (point-to-point or multipoint)

Number of nodes on the network

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Содержание DSP9612

Страница 1: ...0049 0117 100 DSP9612 Flash Poll Modem User Guide 10 12 2011 Rev F1 DSP9612 Flash Poll Modem User s Guide ...

Страница 2: ...0049 0117 100 DSP9612 Flash Poll Modem User Guide 10 12 2011 Rev F1 Page 1 of 44 Raymar Information Technology Inc 7325 Roseville Road Sacramento CA 95842 800 695 1951 Fax 916 783 1952 ...

Страница 3: ... without notice and does not represent a commitment on the part of Raymar Telenetics Raymar Telenetics assumes no responsibility for any inaccuracies that may be contained in this User s Guide Raymar Telenetics makes no commitment to update or keep current the information in this User s Guide and reserves the right to make changes to this User s Guide and or product without notice No part of this ...

Страница 4: ...2 DIP Switch Settings 17 SW3 DIP Switch Settings 21 CONNECTING TO A TRANSMISSION LINE 26 CONNECTING TO A VOLTAGE SOURCE 27 CONNECTING AN RS 232 DEVICE 28 LEDS 29 LOOPBACK CONTROL SWITCH 30 APPENDIX A TROUBLESHOOTING 32 PROBLEM SOLVING 32 APPENDIX B DIP SWITCH SUMMARY 33 APPENDIX C SPECIFICATIONS 35 GENERAL SPECIFICATIONS 35 MECHANICAL SPECIFICATIONS 36 INTERFACE CONNECTOR PIN ASSIGNMENTS 37 RS 232...

Страница 5: ...0049 0117 100 DSP9612 Flash Poll Modem User Guide 10 12 2011 Rev F1 Page 4 of 44 NOTES ...

Страница 6: ...ulation and encoding scheme to achieve fast modem training time The modem is also backward compatible with Bell 202 and ITU T V 23 modems The DSP9612 modem is ideally suited for multi point communication systems that require fast response time short training time and low throughput delay The DSP9612 is the most technologically advanced modem on the market This User s Guide describes both the DSP96...

Страница 7: ...ocations Works within an extended temperature range of 40ºC to 85ºC Designed with coupling transformers for high voltage isolation and common mode noise rejection in industrial and commercial environments Operate over voice band conditioned or unconditioned leased line and pilot wires Accepts power from a wide range of AC and DC power supplies DSP9612FP 85 to 265 VAC or 85 to 400 VDC DSP9612 LV 10...

Страница 8: ... shows a typical multipoint configuration Figure 1 1 Network of Multipoint Configuration There are a number of factors that can affect the network s and modem s operation and performance These include Operating speed 2 wire or 4 wire configuration Transmission line characteristics noise and line impairments Network configuration point to point or multipoint Number of nodes on the network ...

Страница 9: ...0049 0117 100 DSP9612 Flash Poll Modem User Guide 10 12 2011 Rev F1 Page 8 of 44 NOTES ...

Страница 10: ...P9612FP for 85 to 265 VAC or 85 to 400VDC Model DSP9612 LV for 10 to 53 VDC A leased line cable A shielded DC power cable model DSP9612 LV modem only User s Guide CD If your package contents are damaged or missing please contact your place of purchase immediately Additional Items You Need To use your modem you need the following additional items Two or four wire transmission line or leased line A ...

Страница 11: ...to 53 Volts DC if you have the model DSP9612 LV modem Hardware Overview Back View Figures 2 1 and 2 2 show the back view of the two DSP9612 modem models Starting from the left side these views show A 4 wire 2 wire configuration block See page 26 A female 25 pin RS 232 connector for connecting a standard DTE RTU See page 28 A POWER ON OFF switch A power connector See page 27 Figure 2 1 Back View of...

Страница 12: ... 2 2 Back View of Model DSP9612 LV Modem Front View The Model DSP9612FP and Model DSP9612 LV modems have identical front panels Figure 2 3 shows the front view of the modem Starting from the left side this view shows A set of nine LEDs A loopback test switch Figure 2 3 Front View of Modem ...

Страница 13: ... a voltage source 5 Connecting a DTE device Finding a Suitable Location The location you select should provide easy access to the back panel communications interface s and front panel power interface It should also let you view all the LEDs on the front panel Note Raymar Telenetics also offers a rack mount version of this modem Model DSP9612RM as a plug in module for the Telenetics UDS RM16M Centr...

Страница 14: ... switches 1 Use DIP switch 3 SW3 to configure the modem for your host DTE interface and network topology Using SW3 you select the modem to operate in high speed fast poll or low speed FSK mode 2 If you set SW3 for FSK mode in step 1 use DIP switch 2 SW2 to configure the modem for either Bell 202T or ITU T V 23 compatibility Otherwise you can use the modem in fallback mode 3 Use DIP switch 1 SW1 to...

Страница 15: ...ws the table Note SW1 settings apply for both high speed fast poll and low speed FSK modes Table 2 1 Modem Switch Settings for DIP Switch SW1 Switch Settings Switches ON OFF Default SW1 1 1 4 Transmit Level page 15 see Table 2 2 on page 15 SW1 5 Receiver Dynamic Range page 16 10 to 43 dBm 3 to 30 dBm SW1 6 TX Cable Equalizer page 16 Enabled Disabled SW1 7 RX Cable Equalizer page 16 Enabled Disable...

Страница 16: ... these switches Table 2 2 Transmit Levels SW1 through SW4 Switch Settings Transmit Level SW1 1 SW1 2 SW1 3 SW1 4 0 dBm OFF OFF OFF OFF 1 dBm OFF OFF OFF ON 2 dBm OFF OFF ON OFF 3 dBm OFF OFF ON ON 4 dBm OFF ON OFF OFF 5 dBm OFF ON OFF ON 6 dBm OFF ON ON OFF 7 dBm OFF ON ON ON 8 dBm ON OFF OFF OFF 9 dBm ON OFF OFF ON 10 dBm ON OFF ON OFF 11 dBm ON OFF ON ON 12 dBm ON ON OFF OFF 13 dBm ON ON OFF ON ...

Страница 17: ...erformance use the fixed Compromise Cable Equalizer when polling on long metallic circuits The cable equalizer is active only when the modem is in fast poll mode SW3 1 set to OFF SW1 8 Anti streaming SW1 8 ON Anti streaming active OFF Anti stream inactive Typically anti streaming is used in multi point applications to prevent a malfunctioning slave modem from occupying the line indefinitely When a...

Страница 18: ...2 Switch Settings Switches ON OFF Default SW2 1 FSK Mode V 23 Bell 202 SW2 2 Receiver Squelch page 18 valid for FSK mode 2 wire half duplex operation only Turnaround Squelch Bell 202 8ms Turnaround Squelch V 23 150ms Turnaround Squelch Bell 202 0ms Turnaround Squelch V 23 0ms SW2 3 FSK Soft Carrier page 19 Disabled Enabled SW2 4 and SW2 5 FSK RTS CTS Delay page 19 see Table 2 4 SW2 6 FSK CD Delay ...

Страница 19: ...th ITU T CCITT recommendation V 23 with the following parameters Mode 2 modulation only No backward channel No provisions for disablement of echo suppressors DTR circuit 108 is ignored Setting SW2 1 OFF selects Bell 202 mode SW2 2 Receiver Squelch FSK Mode 2 Wire Half Duplex Only SW2 2 ON 8ms for Bell 202 150ms for ITU T V 23 OFF 0ms SW2 2 configures the turnaround squelch delay and is valid when ...

Страница 20: ... Only SW2 3 ON None OFF 8ms SW2 3 controls the soft carrier and is valid for Bell 202 FSK mode only SW2 1 set to OFF Setting this switch to OFF will configure the modem to transmit a 900 Hz soft carrier to the remote modem for 8 milliseconds after RTS is turned off Setting this switch to ON will prevent the modem from transmitting a soft carrier after RTS is turned off SW2 4 and SW2 5 RTS CTS Dela...

Страница 21: ...D 6 milliseconds after it detects a valid carrier signal This switch setting is deactivated when the modem is configured for V 23 mode SW2 1 ON and a delay of 18 milliseconds is used instead SW2 7 Remote Loopback SW2 7 ON Loopback enabled OFF Loopback disabled During instances of channel noise the modem may mistaken a received preamble as a request to go into remote digital loopback Setting SW2 7 ...

Страница 22: ...es ON OFF Default SW3 1 Fast Poll FSK page 22 FSK Fast Poll Auto Rate SW3 2 Data Rate page 23 4800 bps 9600 bps SW3 3 Async Character page 23 11 bits 10 bits SW3 4 Auto RTS page 23 Enabled Disabled SW3 5 Transmitter Termination page 24 Switched by RTS 600 Ω SW3 6 Reserved Test Only page 24 Test Normal SW3 7 2 or 4 wire page 24 2 wire half duplex 4 wire full duplex SW3 8 Carrier Control page 25 Con...

Страница 23: ... Signal Fast poll mode OFF Is not connected or is set HIGH FSK mode OFF Is set LOW FSK mode ON Doesn t care You should use the DRS signal in RTS control mode It does not work in either constant carrier mode SW3 8 set to ON or in the auto RTS mode SW3 4 set to ON The DRS signal is only sampled when the transmitter is idle when not sending a preamble data or a turn off sequence Note that DRS control...

Страница 24: ...is in high speed fast poll mode SW3 1 OFF setting SW3 3 ON selects an 11 bit async character while setting SW3 3 OFF selects a 10 bit async character SW3 4 Auto RTS Fast Poll Mode Only For data terminals that do not support hardware RTS set SW3 4 to ON to enable auto RTS mode In this mode TXD is detected at the modem and an internal RTS signal is turned ON After training completes the TXD is trans...

Страница 25: ...his configuration should be used for all slave modems to prevent the transmitting modem from being unnecessarily burdened To select this configuration set SW3 5 ON on the slave modems If you use the modem with transmission lines that are transformer coupled or with an impedance isolated network such as a transformer bridge set SW3 5 OFF for proper operation SW3 6 Reserved Test Only SW3 6 Must be O...

Страница 26: ... and the RTS CTS delay is minimum 0 5 ms You can use constant carrier in 4 wire point to point or multi point applications from master to slave modems In switched carrier mode SW3 8 set to OFF the RTS CTS delay is active SW3 9 RX Termination SW3 9 ON Enable Rx Termination OFF Disable Rx Termination SW3 9 selects whether RX termination is enabled for a modem If you set this switch ON the receiver i...

Страница 27: ...ata Rx and Rx Table 2 7 shows the pin numbers and corresponding signals for the modem Figure 2 4 shows the transmission line interface Note For communication to occur the Rx line of one modem must connect to the Tx line of the other modem The modem s Tx Rx pair is non polarized Note The modem does not support leased line operations with DC current Table 2 7 Transmission Line Connector Pin Assignme...

Страница 28: ...ms can be powered from the following power sources Model DSP9612FP AC version 85 to 265 Volts AC 50 to 60 Hz single phase or 85 to 400 VDC Model DSP9612 LV DC version 10 to 53 Volts DC The model DSP9612 LV comes with a shielded power cord for making this connection Figure 2 1 on page 10 shows the connection to the Model DSP9612FP s power interface Figure 2 2 on page 11 shows the connection to the ...

Страница 29: ... environmental conditions Screw terminals on the power interface accept 24 to 16 AWG However surge protection is guaranteed only if the ground wire is greater than 18 AWG and if there is a solidly earthed ground connection Be sure the power source is not controlled by a wall switch which can be inadvertently turned off shutting off power to the modem Connecting an RS 232 Device The modem back pane...

Страница 30: ...in Table 2 8 Table 2 8 Modem LEDs LED Color Description PWR Green Power Input RTS Yellow Request To Send CTS Yellow Clear To Send TD Yellow Transmit Data RD Yellow Receive Data CD Yellow Carrier Detect MR Yellow Modem Ready ALB Red Analog Loopback DLB Red Digital Loopback When the modem is in remote loopback both the ALB and DLB LEDs go ON ...

Страница 31: ...s the local modem s diagnostics button three times and raise the local modem s RTS signal to start the test The ALB and DLB LED s go ON when the modem is in Remote Digital Loopback This test is available in fast poll mode only Note During instances of channel noise the modem may mistake a received preamble as a request to go into remote digital loopback Setting SW2 7 to OFF prevents the modem from...

Страница 32: ...0049 0117 100 DSP9612 Flash Poll Modem User Guide 10 12 2011 Rev F1 Page 31 of 44 Figure 2 4 illustrates these three diagnostics Figure 2 4 Loopback Diagnostics ...

Страница 33: ...t operate properly Problem Solving Table A 1 offers troubleshooting solutions for modem problems Table A 1 Troubleshooting Suggestions If Perform These Procedures Modem does not respond to the attached DTE and the all LEDs are off Check the power supply input for your specific model see page 27 Modem does not receive data and the DCD and RxD LEDs are off The receive line pair may be disconnected f...

Страница 34: ...ted If data is being transmitted make sure the RS 232 cable is sound and securely connected to the modem and terminal or DTE Appendix B DIP Switch Summary Switch Settings Switches ON OFF Default SW1 1 1 4 Transmit Level page 15 see Table 2 2 on page 15 SW1 5 Receiver Dynamic Range page 16 10 to 43 dBm 3 to 30 dBm SW1 6 TX Cable Equalizer page 16 Enabled Disabled SW1 7 RX Cable Equalizer page 16 En...

Страница 35: ...6 FSK CD Delay page 20 23ms 6ms SW2 7 Remote Loopback page 20 Enabled Disabled SW2 8 Reserved Test Only page 20 Test Normal SW3 1 Fast Poll FSK page 22 FSK Fast Poll Auto Rate SW3 2 Data Rate page 23 4800 bps 9600 bps SW3 3 Async Character page 23 11 bits 10 bits SW3 4 Auto RTS page 23 Enabled Disabled SW3 5 Transmitter Termination page 24 Switched by RTS 600 Ω SW3 6 Reserved Test Only page 24 Tes...

Страница 36: ...nditioned Private metallic circuits up to 9 5 miles 24 AWG without cable equalizer Up to 15 0 miles 24 AWG with TX and RX cable equalizer Operating modes 2 wire half duplex or 4 wire full duplex Modulation High speed fast poll Telenetics proprietary FSK Bell 202T or V 23 compatible Mark 1200 Hz 1300 Hz V 23 Space 2200 Hz 2100 Hz V 23 Soft Carrier 900 Hz Bell 202T only Equalizer Automatic adaptive ...

Страница 37: ...ant or switched DIP switch selectable Carrier loss recovery Train on Data Throughput delay Less than 10 milliseconds for fast polling Auto RTS Support DTE without hardware RTS high speed only Anti Streaming 27 second timer to prevent transmitter lock up network Mechanical Specifications Enclosure Aluminum with removable front and rear panels Dimensions 5 70 wide x 8 30 long x 1 50 high Weight 1 9 ...

Страница 38: ...10 12 2011 Rev F1 Page 37 of 44 Interface Connector Pin Assignments Leased Line Terminal Block Pin Assignments This Pin Number Corresponds to This Signal 1 Rx 2 Rx 3 Tx 4 Tx RM Model RJ45 3 4 Rx 4 Rx 5 Tx 6 Tx Back to Back Connection to a Second Modem ...

Страница 39: ...g humidity 5 to 95 non condensing Line Isolation 3750 V RMS Surge protection Leased line up to 15K VA Signal Name Modem Input Output DB25 Pin Description Earth GND 1 Earth Ground TXD Input 2 Transmit Data RXD Output 3 Receive Data RTS Input 4 Request To Send CTS Output 5 Clear To Send DSR Output 6 Data Set Ready Modem Ready SG 7 Signal Ground DCD Output 8 Data Carrier Detected DRS Input 23 Data Ra...

Страница 40: ...SP9612 Flash Poll Modem User Guide 10 12 2011 Rev F1 Page 39 of 44 Compliances The modem is designed to meet the following agency requirements EMI RFI FCC part 15 for Class A computing device Industry Canada Emissions ...

Страница 41: ...ful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and the receiver Connect the equipment to an outlet on a circuit other than the one to which the recei...

Страница 42: ...e 41 of 44 Department of Canada Statement This Class A digital apparatus meets all requirements of the Canadian Interference Causing Equipment Regulations Cet appareil numerique de la classe A respecte toutes les exigences du Reglement sur le materiel brouilleur du Canada ...

Страница 43: ...0049 0117 100 DSP9612 Flash Poll Modem User Guide 10 12 2011 Rev F1 Page 42 of 44 ...

Страница 44: ...CHASE PRICE OF THE PRODUCT FOR ANY LOSS OF USE LOSS OF TIME INCONVENIENCE COMMERCIAL LOSS LOST PROFITS OR SAVINGS OR OTHER INCIDENTAL SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THIS RAYMAR PRODUCT TO THE FULL EXTENT SUCH MAY BE DISCLAIMED BY LAW WITHOUT LIMITING THE FOREGOING RAYMAR SHALL HAVE NO LIABILITY FOR ANY DATA STORED IN OR USED WITH THE PRODUCT INCLUDING T...

Страница 45: ...del number the serial number a description of the problem being encountered and the cause of the problem if known Please note that prior to authorizing a return a product support specialist may call to verify that the product is properly installed or may ask you to perform tests to insure that the product has actually failed The product must be properly packed and returned to Raymar Telenetics 732...

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