USG_520-01014-001_C
Contents
1. Remote digital loopback set the local modem s RTS signal to low Press the local modem s diagnostics test button three times Both the ALB and DLB LEDs should be ON Then raise the local modem s RTS signal to start the test The ALB and DLB LEDs of the remote modem should go ON when the modem is responded to remote digital loopback This test will verify both modems transmitters receivers and the leased line 26 User s Manual SM19202 Fast Poll Modem Installation NOTE Be sure switch S1 9 is set to the ON position to enable the remote modem to respond to remote digital loopback requests This test is only available in fast poll mode at 2400 bps or higher Figure 2 8 shows these three loopback diagnostics N Leased Line Ni Local Host Analog Loop Back Transmitter A m _ A Leased Line Local Host Digital Loop Back N a Leased Line Ai Remote RTU Digital Loop Back Receiver Figure 2 8 Loopback Diagnostic Modes 27 User s Manual SM19202 Fast Poll Modem Appendix A Troubleshoot ing In the event you encounter a problem using your Synxcom modem refer to the troubleshooting information in this appendix IMPORTANT lf you encounter a problem with your modem be sure the switches on the modem are set2. line drop outs or power outage conditions In order to regain synchronization at the receiver the SM19202FP modem implements a re train algorithm which allows the receiving modem to send out a re train request to the remote modem for re train and re gain synchronization This option is most useful for the modem to operate at 19200 bps and constant carrier or constant RTS modes e S2 10 ON Re Train Request is Enabled for 19 200 bps only S2 10 OFF Re Train Request is Disabled default S3 1 and S3 2 RS 232 or RS 485 Interface Select The SM19202FP standalone modem support either RS 232 V24 or RS 485 4 wire or RS 485 2 wire operation To select the interface standards to match you RTU configure S3 1 and S3 2 as following e RS 232 V 24 S3 1 OFF S3 2 OFF e RS 485 4 wire S3 1 ON S3 2 OFF e RS 485 2 wire S3 1 OFF S3 2 ON 20 User s Manual SM19202 Fast Poll Modem Installation S3 3 RS 485 Receiver Termination When RS 485 is used a 120 ohm receiver termination may be used to terminate the receiver e S3 3 ON a120 ohms load is placed across the RX and RX signal e 3 3 OFF no termination is connected to the receiver S3 4 Not Used S 3 5 Leased Line Receiver Termination S3 5 ON The modem leased line receiver is terminated with 600 ohms default S3 5 OFF The modem s line receiver is set high input impedance multi point S3 6 Common Signal Ground and Chassis Ground S3 6 ON The modem cha
3. email to support Synxcom com Information required must include Company name Address including any Mail Stop or specific delivery information Name contact information and e mail address for the technical contact s at your company If the above information is on your letterhead that format is acceptable For each item you wish to return please include The product model number usually found on the serial number tag The serial number for each item you wish to return A description of the problem you are encountering The cause of the problem if known 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 After reviewing the problem Synxcom will assign an RMA number and you will be notified by email or FAX The product must be properly packed and returned to Synxcom Inc 10 Lee Irvine CA 92620 Attn Technical Support The RMA number must be legibly displayed on the shipping carton No RMAs will be issued without a product review Synxcom will not be responsible for any product returned without an RMA number If you believe the product may be out of warranty include a method of payment for repairs either a Purchase Order number or credit card number card holder name date of expiration on the RMA request Repairs currently require 5 working days and are returned UPS second day air Contact us
4. modem versions Configuration jumper JP1 for the rack mount modem card is used to select receiver termination impedance It is important to follow the steps described below in the order shown to ensure that you configure your modem properly using the modem DIP switches 1 Use DIP switch 1 S1 to configure the modem for your host DTE interface and network topology Using S1 you select the modem s operating speed to match you host computer or RTU devices and other DTE specific operating parameters Use DIP switch 2 S2 to select the modem s transmitter output level and receiver dynamic range specific leased line conditions The S2 settings apply for both high speed fast poll QAM and low speed FSK modes After you change the DIP switch settings recycle power to the modem to have the settings take effect NOTE The DIP switch settings may not take effect until you recycle power to the modem To access the configuration DIP switches on the stand alone modem 1 Ground yourself to discharge any ESD which might cause damage to the sensitive devices on the modem board Due to re designing of the modem s main assembly circuit board and the chassis you do not need to open the enclosure to get access to the DIP switches Place the modem on a flat surface with the bottom up The locations of the DIP switches for the stand alone modem are shown in Figure 2 4 on the next page To set the configuration for the modem use a
5. sharp pin or small screw driver to slide the switch lever to the ON or OFF positions as shown in Table 2 1 For DIP switches and jumpers on the rack mount plug in module see Figure 2 5 IMPORTANT Carefully check the DIP switches for the ON close or OFF open positions according to vour RTU interface specifications and to match the data rate and other control inputs to the modem User s Manual SM19202 Fast Poll Modem Installation Standalone Modem Bottom View Tl oO 5 r U 8 LA Figure 2 4 SM19202 Fast Poll Stand alone Modem Switches User s Manual SM19202 Fast Poll Modem Installation Configuration DIP Switches Configuration Jumper for Receiver Termination pea A fi wan ghd a a 8RZGAZZZAN FRRERESESS B o GREEN BEE sl f mE 1 10 Li 10 8 bl g S1 S2 a UI u21 am E 5 L 3 L 3 5 5 dm j j ti Ge g O z bal o s3 a 3 ia g o 2 Fi a u5 o amp F2 o u l b 5 us d Pit F3 a ai je 5 Ta bl ra 0 0 0 o o j bi Qjojojo
6. 202FP Modem serena 10 Figure 2 2 Back View of SM19202FP Modem nr 10 Figure 2 3 Rack Mount Module for the SM19202FP RM Modem Board 11 Figure 2 4 SM19202 Fast Poll Stand alone Modem Switches seen 13 Figure 2 5 SM19202 Fast Poll Rack mount Modem Board nem 14 Figure 2 6 SM19202FP Modem Transmission Line Interface 22 Figure 2 7 Pin Locations on the Modem s RJ 11C Jack ses 24 Figure 2 8 Loopback Diagnostic Modes nn nn nnnnnrr nn nr nnnnnnn 27 Figure 2 9 Back to Back Connection to a Second Modem nn nnnnnnnnnnnnnn 30 Tables Table 2 1 Table 2 2 Table 2 3 Table 2 4 Table 2 5 Table 2 6 Table A 1 Table B 1 Table B 2 Table B 3 Modem Switch Settings sir nie 14 Modem Operating Speed i seas i A 16 Transmit Levels een 18 Transmission Line Connector Pin Assignments e sen nnnnnnneennnnnnn 22 RJ 11C Modular Jack Pin Assignments sse 24 M d m LEDS tn nee ee ee ee 26 Problem SolViN gs ik ee 28 Leased Line Terminal Block Pin Assignments ss nennen 30 RS 232 DTE INlellace a nnane i Ba 31 RS 485 DTE i A TA euere 31 User s Manual SM19202 Fast Poll Modem Chapter 1 Introduction Thank you for purchasing Synxcom s SM19202FP fast poll modem the finest industrial grade fast poll modem available The Synxcom modem is a 19200 9600 4800 2400 1200 bps modem designed for 4 wire full duplex or 2 wire half duplex operation over a voice band leased line or private line T
7. 85 Interface Select nennen 20 S3 3 RS 485 Receiver Termination sa 21 S3 4 isej B a 21 S 3 5 Leased Line Receiver Termination nn nn 21 S3 6 Common Signal Ground and Chassis Ground e nnnzzznnzzi 21 Configuring the Jumper Blocks nn 21 For Stand alone Units a a 21 For Rack Mount Plug in Modules 21 User s Manual SM19202 Fast Poll Modem Contents Connecting to a Transmission Line nn nnnnnnr nanna 22 Connecting to a Voltage Source nn 23 Connecting to an RS 232 Device ee a 24 Connecting to an RS 485 Device nn 24 FEEDS een 26 Loopback Control Sweet Bi 26 Appendix A Troubleshooting sssreennnnnnnnnnnnzznznnnnn nn nn nnnnnnnmnmnnn tran nn nnnmmmnnn 28 Problem SOWING ee een 28 Appendix B Speeificalions nnae aan 29 General SPECHEAlONS ae eier een 29 Mechanical Specifications isseire a aa 30 Interface Connector Pin Assignments nn 30 RS 232 AD Ey WEA nee een 31 RS 485 DTE Interface ais eslerGrneeeaseiicetaemeeenene 31 Environmental Specifications anne 31 Appendix C Limited Product Warranty sssssssennnnnnnnnnnnznnzznnnnnnnnnnnnnnzzzzznenn 32 Appendix D RMA Procedure issa ak ak a nnd 33 iv User s Manual SM19202 Fast Poll Modem Contents Figures Figure 1 1 Point to Point Network Using the SM19202FP Modem s en 8 Figure 1 2 Multipoint Polling Network Using the SM19202FP Modem sen 8 Figure 2 1 Front View of the SM19
8. A female 9 pin RS 232 connector labeled RS 232 for connecting the modem to a standard DTE RTU A power connector labeled 10 48V DC a O LEASED LINE Figure 2 2 Back View of SM19202FP Modem 10 User s Manual SM19202 Fast Poll Modem Installation Rack Mount View Figure 2 3 shows the rack mount plug in module mun 1 om Ar u oe kud me tad gt Aiaia E PEEL sp Figure 2 3 Rack Mount Module for the SM19202FP RM Modem Board Installation Summary This section describes the steps for installing the modem NOTE Itis important to follow the steps below to configure the modem s DIP switches to match your DTE RTU interface requirement and the transmission line characteristics If you are not certain about your system s parameters or the leased line configuration please contact your network administrator for assistance Configure the modem using the DIP switches and jumpers See pages 14 and 20 Connect to a transmission line See page 22 Connect to a voltage source See page 23 SN oS Connect a DTE device See page 24 11 User s Manual SM19202 Fast Poll Modem Installation Configuring the Stand alone Modem You configure the modem using the three sets of DIP switches located at the bottom of the modem box S1 and 82 and S3 Configuration DIP switches S1 and S2 for the stand alone and rack mount modems are identical Their descriptions in this users manual apply to both
9. ARNING Before you connect a voltage source observe the following power supply voltage guidelines Otherwise you will void your warranty if the wrong voltage is applied Be sure the voltage source is within the permitted ranges shown above Otherwise your modem and any attached devices may be damaged e Customer supplied cables must be suitable for the site environmental conditions e Screw terminals on the power interface accept 24 to 16 AWG However surge protection is effective only if there is a solidly earthed ground connection greater than 18 AWG Be sure the power source is not controlled by a wall switch which can be inadvertently turned off shutting off power to the modem 23 User s Manual SM19202 Fast Poll Modem Installation Connecting to an RS 232 Device The modem back panel provides a female 9 pin RS 232 connector that accepts an attached RS 232 device see Figure 2 2 on page 10 This connector accepts a standard connection to a DTE RTU that conforms to the pin assignments shown under Table B 2 RS 232 DTE Interface in Appendix B Connecting to an RS 485 Device The modem rear panel provide an RJ 11C module jack connector for a 4 pin RS 485 or RS 422 interface in the event that your DTE or RTU does not support the RS 232 interface see Figure 2 2 on page 10 and Figure 2 7 The RS 485 interface supports 4 wire full duplex or 2 wire half duplex The pin assignments for the RS 485 interface a
10. D SG connections set the modem s switch S1 5 to ON to enable auto RTS mode In this mode the modem does not require RTS input from the DTE or RTU If TXD is detected at the modem the modem turns on its internal RTS and carrier signals at the transmitter After training completes the TXD is transmitted to the remote modem The transmitter turns itself off if no TXD is detected after some length of idle time approx 2 characters S1 6 Transmit Carrier Control For SM19202FP K only e S1 6 ON Enable transmit carrier control for radio push to talk 16 User s Manual SM19202 Fast Poll Modem Installation S1 6 OFF Normal Leased Line operation default When DIP switch SW1 6 is ON the modem will activate its Push To Talk feature The main theory of operation of this feature is for the modem to turn on the radio as soon as RTS is asserted by the RTU to the SM19202FP K modem The modem will use the delayed Clear To Send CTS as the indicator to the RTU to signal the start of sending data to the host end When the modem turns on the radio by way of a TTL logic low signal Key on the modem will wait for 30 msec before start sending any analog signal to the radio and the master modem end This timing is critical and is required by the radio and the modem to ensure the training pattern of the modem is fully transmitted without distortion For RTUs that only provide the 3 wire RS 232 interface or using the RS 485 interface the m
11. Ohms S3 5 Receiver Termination 600 Ohms Default High Impedance S3 6 Signal Ground and Chassis Ground Connected Together S1 1 S1 2 S1 3 Modem Data Rate e S1 1 S1 2 S1 3 Select the modem speed per Table 2 2 15 User s Manual SM19202 Fast Poll Modem Installation Table 2 2 Modem Operating Speed To Select f Set Switch S1 1 to Set Switch 1 2to Set Switch S1 3 to 19 200 bps Note geoobps ON or Or O wows EEE ow HE o HERE e C aos BER o o S aan o oe m o C vano owo o ow en For modem speeds of 2400 bps or higher the modem uses QAM modulation automatically When the modem is operating at 1200 bps either in Bell202T or ITU V 23 mode the modem uses FSK modulation Note Leased lines with a relatively flat 300 3400Hz bandwidth is required to support 19 200 bps operation S1 4 Async Character Fast Poll Mode Only S1 4 ON 11 bits S1 4 OFF 10 bits default Switch S1 4 selects whether the async character is 10 or 11 bits long 10 bits character 1 start 1 stop bit 7 data 1 parity amp E 1 or 8 data with no parity 8 N 1 11 bits character 1 start 1 stop bit 8 data 1 parity 8 E 1 This switch setting is ignored when the modem set at 1200 bps or less FSK modulation S1 5 Auto RTS S1 5 ON Enable Auto RTS S1 5 OFF Disable Auto RTS default For data terminals that do not provide hardware Request To Send RTS i e only provide TXD RX
12. SYNXCOM M 0 User s Manual For Models SM19202FP SM19202FP K SM96202FP SM96202FP K Fast Poll Modems Document Number 520 01014 001 Rev C Copyright 2012 Synxcom Incorporated All Rights Reserved Web site www synxcom com The products and programs described in this User s Manual are licensed products of Synxcom Inc This User s Manual contains proprietary information protected by copyright and this User s Guide and all accompanying hardware and documentation are copyrighted Synxcom Inc does not warrant that the product will work in all environments and applications and makes no warranty and representation either implied or expressed with respect to the quality performance merchantability or fitness for a particular purpose Information in this User s Guide is subject to change without notice and does not represent a commitment on the part of Synxcom Inc Synxcom Inc assumes no responsibility for any inaccuracies that may be contained in this User s Manual No part of this manual may be reproduced or transmitted in any form or by any means electronic or mechanical including photocopying recording or information storage and retrieval systems for any purpose other than the purchaser s personal use without the express written permission of Synxcom Inc How to obtain Technical Supports e mail support synxcom com Phone 949 390 8236 Fax 949 872 2889 Technical Support is availab
13. User s Manual or CD ROM If your package contents are damaged or missing contact your place of purchase Additional Items You Need to Complete Your Installation To complete your installation and operate your modem you need these additional items Two or four wire transmission line or leased line A DB 9 data cable for your RS 232 interface Data Terminal Equipment DTE port or a RJ 11C data cable for your RS 485 DTE Power supply that provides either 90 to 265 Volts AC 50 to 60 Hz single phase or 100 to 400 VDC if you have the model SM19202FP modem or 10 to 60 Volts DC if you have the model SM19202FP DC modem For the SM19202FP RM consult the documentation for your Motorola UDS RM16M 9 User s Manual SM19202 Fast Poll Modem Installation Hardware Overview Front View Figure 2 1 shows the front view of the SM19202FP stand alone modem Starting from the left side this view shows A set of eight LEDs for modem interface status see Table 2 6 on page 26 A loopback control push button switch see Loopback Control Switch on page 26 RTSCTS TD RD CD MR ALB DLB TEST Figure 2 1 Front View of the SM19202FP Modem Back View Figure 2 2 shows the back view of the SM19202FP stand alone modem Starting from the left side this view shows A 4 wire 2 wire configuration block labeled LEASED LINE An RJ 11 modular jack labeled RS 485 for connecting the modem to an RS 485 RTU
14. able Equalizer Fast Poll Mode Only S2 5 ON Enable TX Cable Equalizer S2 5 OFF Disable TX Cable Equalizer default S2 6 ON Enable RX Cable Equalizer S2 6 OFF Disable RX Cable Equalizer default If you use the SM19202FP as a limited distance modem over pilot wire or unloaded cables you may need to improve or extend the modem s polling performance on long transmission lines by using the modem s internal fixed Compromise Cable Equalizer when polling on long metallic circuits when the cable exceeds 4 to 5 miles long The cable equalizer is active only when the modem is in QAM fast poll mode 2400 bps or higher S2 7 Anti streaming e S2 7 ON Anti streaming is active S2 7 OFF Anti stream is inactive default Typically anti streaming is used in multi point applications to prevent a malfunctioning slave data terminal or RTU from occupying the line indefinitely When anti streaming is active the modem can transmit data for a maximum of 27 seconds before the transmitter turns off automatically The modem then looks for an ON to OFF RTS transition before proceeding with normal operation Anti streaming can be selected in either high speed or low speed mode S2 8 RTS CTS Delay Bell 202 Mode Only S2 8 ON 33 0 ms delay S2 8 OFF 8 0 ms delay default Switches S2 8 determines the duration of the RTS CTS delay in Bell 202 mode For V 23 mode the RTS CTS delay is fixed at 33 ms 19 User s Manual SM19202 Fa
15. by e mail support synxcom com or Fax 949 872 2889 if you should have any questions 33 User s Manual SM19202 Fast Poll Modem 34 RMA Procedure User s Manual SM19202 Fast Poll Modem
16. ctor pin assignments for the rack mount module can be found in the documentation for your Motorola UDS RM16M Table 2 4 Transmission Line Connector Pin Assignments This Pin Number Corresponds to This Signal Rx 4 wire only Rx 4 wire only Tx Tx Rx 2 wire Tx Tx Rx 4 wire EEE Earth Ground optiona NOTE When 2 wire half duplex is used the TX pair must be used for both transmit and receive CPA 11121131 4 5 LEASED LINE RS 485 RS 232 10 48 VDC Figure 2 6 SM19202FP Modem Transmission Line Interface 22 User s Manual SM19202 Fast Poll Modem Installation Connecting to a Voltage Source The back panel of the modem provides a 2 position screw terminal power interface connector For your convenience the DC voltage of the input power is non polarized To meet your specific application tne modems can be powered from the following power sources Model SM19202FP with AC DC power converter 90 to 265 Volts AC 50 to 60 Hz single phase or 100 to 400 VDC The output of the converter is a 12 VDC source that will power the modem Model SM19202FP DC DC version 10 to 60 Volts DC The model SM19202FP DC comes with a power cord for making this connection Figure 2 2 on page 10 shows the connection to the Model SM1920FP s power interface shows the connection to the Model SM19202FP DC s power interface W
17. e items such as lamps and fuses No warranty is made with respect to custom products or Products produced to Customer s specifications except as specifically stated in writing by Synxcom in the agreement for such custom products Warranty is voided if the serial number label on the printed circuit assembly of returned modems is removed defaced or destroyed This label contains the serial number that will provide proof of the date of manufacturing This warranty is the only warranty made by Synxcom with respect to the goods delivered hereunder and may be modified or amended only by a written instrument signed by a duly authorized officer or Synxcom and accepted by Customer This warranty and limitation extends to customer and to users of the product and is in lieu of all warranties with respect to the product whether express implied or statutory including without limitation the implied warranties of merchantability and fitness for a particular purpose 32 User s Manual SM19202 Fast Poll Modem Appendix D RMA Procedure Before returning any Synxcom product an RMA number must be obtained Before asking for an RMA number ascertain that the product was purchased from Synxcom If you bought the product from a Distributor or Systems Integrator the product should be returned to that vendor The most convenient method to obtain an RMA number for a product purchased from Synxcom is to fill out and submit the RMA form on line or send an
18. he modem is designed utilizing the latest digital signal processing DSP technology to achieve high performance The modem employs efficient modulation 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 SM19202FP is the most technologically advanced modem on the market Boasting a fast DSP processor and automatic adaptive equalizer the SM19202FP modem is ideally suited for multi point communication systems that require fast response time short training time and low throughput delay This User s Guide describes the SM19202FP AC powered and SM19202FP DC DC powered stand alone modems as well as the rack mount SM19202FP RM plug in module for the Motorola UDS RM16M This manual is designed to get your modem up and running as quickly as possible It contains all the information you need to configure and install your modem It also contains troubleshooting information in the unlikely event you encounter a problem with your modem 6 User s Manual SM19202 Fast Poll Modem Introduction Features The SM19202FP modem is specifically designed for harsh environments typically associated in utility substations and industrial facilities Though functionally similar to commercial modems the SM19202FP provides the following unique features that make it well suited for utility and industrial applications Packaged in a rugged compact enclosure for ind
19. jojojo EJ Gas l ii Figure 2 5 SM19202 Fast Poll Rack mount Modem Board Setting the DIP Switches 1 S2 and S3 are miniature switches used to configure all the options and features of the modem Table 2 1 shows the setting of the switches NOTE Switches S1 to S3 are slide switches To configure the switches use a small sharp pin or small screw driver to push the handle to turn ON or to turn OFF each switch Never leave anv switch in half wav ON or OFF When the switch is slide to the ON position it is referring to as CLOSE condition When the switch is in the OFF position it is in the OPEN state Table 2 1 Modem Switch Settings on ETT 19200 SW1 OFF SW2 OFF SW3 OFF S1 1 to S1 3 Modem Data Rate 9600 SW1 ON SW2 OFF SW3 OFF 4800 SW1 ON Sw2 ON SW3 OFF 2400 SW1 OFF SW2 ON SW3 OFF Bell 202T SW1 OFF SW2 OFF SW3 ON V 23 SW1 ON sw2 ON Sw3 ON S1 4 DTE Async Character 11 bit 10 bit 14 User s Manual SM19202 Fast Poll Modem Installation on oo S1 5 Auto RTS Enabled Disabled S1 6 Transmit Carrier Control Radio Push to Talk option Normal Leased Line SM19202FP K only ED SWISS O S2 1 to S2 3 Transmit Output Level S2 4 Modem Receive Dynamic Range DIP Switch S3 S3 1 RS 232 Interface operation Both S3 1 and S3 2 are setto OFF S3 2 RS 485 4 wire interface S3 1 ON S3 2 OFF 2 wire interface S3 1 OFF S3 2 ON S3 3 RS 485 Receiver Termination High Impedance 120
20. l or DTE may not be sending data to the do not blink modem Verify that data is being transmitted If data is being transmitted make sure the RS 232 cable is sound and securely connected to the modem and terminal or DTE 28 User s Manual SM19202 Fast Poll Modem Appendix B Specification S General Specifications Data rate Modem Training Time RTS CTS Delay Data format DTE interface Line conditions Operating modes Modulation Equalizer Receiver dynamic range Operating temperature Power supply Surge protection Carrier control Carrier loss recovery Throughput delay Auto RTS 29 19200 9600 4800 2400 0 1800 Bell 202T or 0 1200 bps V 23 asynchronous 17 4 ms fast poll at 19200 bps 23 ms fast poll at 2400 4800 9600 bps 8 or 33 ms Bell 202T 33 ms V 23 8 or 9 data bits with 1 or more stop bits or 7 data bit with parity bit EIA RS 232 V 24 or RS 485 2 wire HD or 4 wire FD compatible TELCO voice band 4 or 2 wire leased line conditioned or unconditioned Private metallic circuits up to 9 5 miles at 9600 bps 24 AWG without cable equalizer Up to 15 0 miles 24 AWG with TX and RX cable equalizer Up to 25 miles for FSK modes 2 wire half duplex or 4 wire full duplex over leased or private line QAM High speed fast poll mode FSK Bell 202T or V 23 compatible e Mark 1200 Hz 1300 Hz V 23 Space 2200 Hz 2100 Hz V 23 Soft Carrier 900 Hz Be
21. le from 8 00 am to 5 00 pm PST weekdays except major holidays e mail support is 7 day a week excluding major holidays SM19202FP Fast Poll Modem User s Manual 520 01014 001 Rev C March 15 2012 Contents Chapter 1 Introduchion nun innen ka 6 Feature Sereen a EREE E EER EEE Eae EERE ERA Ea EREI beein 7 ADPPIICAONS nee een ee 8 Chapter 2 Installation asia aaa 9 Unpacking Your Hardware nee 9 Additional Items You Need to Complete Your Installation 440 9 AatawareCWERIEW a A a 10 Front VIEW esse 10 Back VIEW ia st 10 Ra ck M unt MEN ee een 11 Installation Summary ann enter 11 Configuring the Stand alone Modem nannti 12 Setting the DIP Switches u 14 S1 1 S1 2 S1 3 Modem Data Rate ss cccecece cesses eesueesseeeseeaaeneneaes 15 S1 4 Async Character Fast Poll Mode Onlv nn 16 2175 Auld BT a ia iii een 16 S1 6 Transmit Carrier Control For SM19202FP K only nn 16 S1 7 2 4 Wire Leased Line Operation 17 S1 8 Transmitter Impedance rna 17 S1 9 Remote Loopback Enable ss ne 18 S1 10 Reserved Test Onlv a 18 S2 1 through S2 3 Transmit Level ea ee 18 S2 4 Receiver Dynamic Range 19 S2 5 and S2 6 Cable Equalizer Fast Poll Mode Onlv 220000 19 52 7 Anti sreaming sk 19 S2 8 RTS CTS Delay Bell 202 Mode Onlv nn 19 S2 9 Forced RTS ON Constant RTS L 20 S2 10 Re Train Request Enabled ss 20 S3 1 and S3 2 RS 232 or RS 4
22. ll 202T only Automatic adaptive 0 to 30 dBm or 10 to 43 dBm 40 C to 85 C Wide range switching power supply e SM19202FP AC version 90 to 265 Volts AC 50 60 Hz single phase or 90 to 400 VDC e SM19202FP DC DC version 10 to 60 Volts DC Leased line up to 15KV Constant or switched DIP switch selectable Train on data automatically Less than 10 milliseconds for fast polling Support DTE without hardware RTS User s Manual SM19202 Fast Poll Modem Specifications Anti streaming 27 second timer to prevent transmitter lock up network Mechanical Specifications Enclosure Aluminum with removable front and rear panels Dimensions 5 0 wide x 6 5 long x 1 30 high Weight 1 0 lbs without AC to DC power converter module Interface connectors Leased Line 5 position screw terminal includes earth ground Data Terminal Equipment DB 9 female connector for RS 232 RJ 11C modular jack for RS 485 Interface Connector Pin Assignments Table B 1 Leased Line Terminal Block Pin Assignments S GG EEE b O T Earth Ground optional NOTE When 2 wire half duplex is used the TX pair must be used for both transmit and receive Modem 1 Modem 2 Figure 2 9 Back to Back Connection to a Second Modem 30 User s Manual SM19202 Fast Poll Modem Specifications RS 232 DTE Interface Table B 2 RS 232 DTE Interface TE aa Carr Detcied exo EM Saat Groner i e Modem Ready as
23. odem will not receive the RTS signal for the key on function As such the modem must be configured to enable the Auto RTS option SW 1 5 to ON With this option the modem will generate its internal RTS when data is detected from the RTU and turn on the Push To Talk signal to the radio Note Please refer to switch setting S2 9 forced RTS ON for other applications S1 7 2 4 Wire Leased Line Operation e S1 7 ON 2 Wire Half Duplex Mode S1 7 OFF 4 Wire Full Duplex Mode default Switch S1 7 configures the modem for either 4 wire full duplex or 2 wire half duplex leased line operation S1 8 Transmitter Impedance e S1 8 ON Transmitter termination is controlled by RTS S1 8 OFF Transmitter always terminated with 600 Q default Switch S1 8 is used for multi point configuration networks When multiple modems are connected on the same metallic circuit The transmitter termination should be of high impedance if the modem is not transmitting in order not to put a load on the transmission line The transmitter is only terminated with 600 ohms when RTS is asserted This configuration should be used for all slave modems to prevent the transmitting modem from being unnecessarily burdened To select this configuration set switch S1 8 ON for the slave modems such that the slave modem is in high impedance when not transmitting 17 User s Manual SM19202 Fast Poll Modem Installation If you use the modem wi
24. re listed in Table 2 5 Pin 6 Pin 1 aid Figure 2 7 Pin Locations on the Modem s RJ 11C Jack Table 2 5 RJ 11C Modular Jack Pin Assignments RJ 11 Pin Number Corresponds to Signal Name Modem Input or Output N m 24 User s Manual SM19202 Fast Poll Modem 25 Installation Modem DTE RTU 4 wire RS 485 Connection Modem DTE RTU RxD TxD 2 i RxD TxD Not Used 2 wire RS 485 Connection User s Manual SM19202 Fast Poll Modem Installation LEDs The front panel of the modem provides the LEDs shown in Table 2 5 Table 2 6 Modem LEDs nn sive Data nn Modems o e O e OO Analogkoopback a Cita Loop Loopback Control Switch The front panel of the modem has a push button for initiating the following loopback diagnostic tests Local analog loopback started by pressing the button one time The ALB LED should be ON When a DTE is connected to the RS 232 port of the modem the transmit data is loop back to the DTE as receive data This test will verify the modem transmitter receiver and its RS 232 interface along with the connecting cable Local digital loopback started by pressing the button two times The DLB LED should be ON When a DTE is connected to the RS 232 port of the modem the transmit data is loop back to the DTE as receive data This test will verify the modem s RS 232 interface along with the cable attached
25. ssis ground and signal ground are connected S3 6 OFF The modem chassis ground and signal ground are not connected Configuring the Jumper Blocks For Stand alone Units No internal jumper block is required For Rack Mount Plug in Modules Jumper block JP1 is used to set the modem s receiver termination impedance e 600 ohms A shorting jumper is placed over pin 2 amp 3 default e Highimpedance A shorting jumper is placed over pin 1 amp 2 Select high receiver impedance Hi Z if multiple modems are connected in a multi point configuration but without an impedance matching bridged such as private metallic circuit environment In this configuration only one receiver should be configured for 600 ohms 21 User s Manual SM19202 Fast Poll Modem Installation Connecting to a Transmission Line The modem has a transmission line interface that can be configured for 2 or 4 wire analog connection where one pair Tx A and Tx B is used to transmit data and the other pair Rx A and Rx B is used to receive data The transmit pair and receive pair are non polarized Table 2 4 shows the pin numbers and corresponding signals for the modem Figure 2 6 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 are non polarized NOTE The modem does not support leased line operation with DC shielding current Leased line conne
26. st Poll Modem Installation S2 9 Forced RTS ON Constant RTS S2 9 ON Force the modem s internal RTS to on It also force the modem to turn on CTS and the transmit carrier S2 9 OFF Internal RTS is controlled by the RTU default Switch 2 9 will force the modem to turn on its internal RTS CTS and transmit carrier continuously allowing the RTU and DTE to operate with the modem without supplying RTS signal This is primary used by DTE s or RTU s that support only TD RD and SG signals Forced RTS on option is typically used for point to point connections between two RTUs or modems For multi point applications the salve modems should not use this option S2 10 Re Train Request Enabled When the SM19202FP modems are operating in high speed polling modes the modem s receivers require a special training pattern from the remote transmit modem to synchronize the receive timing before data can be received The SM19202FP will only send out a training pattern when the transmit modem s RTS is raised from the OFF to ON state i e Switched Carrier mode However if the modems are configured in Constant Carrier mode or the RTS is ON continuously by the DIP switches no training pattern will be sent from the transmit modems When in configurations where constant carrier is received at the modem s receiver there is a possibility that the modem might lose synchronization due to transmission line interferences such as line hits
27. t Request To Send E RS 485 DTE Interface Table B 3 RS 485 DTE Interface RJ 11 Pin Number Corresponds to Signal Name Modem Input or Output Not m et S TEE BEE ma Environmental Specifications Operating temperature 40 to 85 C Storage temperature 40 to 125 C Operating humidity 5 to 95 non condensing Line isolation 3750 V RMS Surge protection Leased line up to 15K VA 31 User s Manual SM19202 Fast Poll Modem Appendix C Limited Product Warranty Synxcom warrants that the Product sold will be free from defects in material and workmanship and perform to Svnxcom applicable published specifications for a period of 24 months from the date of delivery to Customer The liability of Synxcom hereunder shall be limited to replacing or repairing at its option any defective Products that are returned F O B to Synxcom s Irvine California facility or at Synxcom s option refunding the purchase price of such products In no case are Products to be returned without first obtaining permission and a customer return order number from Synxcom In no event shall Synxcom be liable for any consequential or incidental damages Products that have been subject to abuse misuse accident alteration neglect unauthorized repair or installation are not covered by the warranty Synxcom shall make the final determination as to the existence and cause of any alleged defect No liability is assumed for expendabl
28. th transmission lines that are transformer coupled or with an impedance isolated network such as a transformer bridge set switch S1 8 OFF for proper operation S1 9 Remote Loopback Enable S1 9 ON Loopback enabled S1 9 OFF Loopback disabled default During instances of channel noise the modem may mistake a received preamble as a request to go into remote digital loopback Setting switch S1 9 to OFF prevents the modem from participating in a remote digital loopback with another modem Switch S1 9 does not prevent the modem from sending a remote digital loopback request to a remote modem S1 10 Reserved Test Only e S1 10 must be OFF for normal modem opertation Switch S1 10 must be in the OFF position for normal operation It is reserved for factory testing only S2 1 through S2 3 Transmit Level Switches S2 1 through S2 3 are used to adjust the modem s transmit level Table 2 5 shows the transmit levels you can select using these switches Table 2 3 Transmit Levels S2 1 through S2 3 Switch Settings ki f o s f s f a po dem or or on O en nn on on on an en en en 18 User s Manual SM19202 Fast Poll Modem Installation S2 4 Receiver Dynamic Range S2 4ON 10 to 43 dBm S2 4 OFF Oto 30 dBm default For short distances or to select a strong receive signal set S2 4 to OFF For a long distance cable or low receive signal level set S2 4 to ON 43 dBm S2 5 and S2 6 C
29. to the appropriate positions see Table 2 1 on page 14 If a switch is halfway between an on and off setting the modem will not operate properly Problem Solving Table A 1 offers troubleshooting solutions for modem problems Table A 1 Problem Solving G A Forlorm These Prozeduren No LEDs are ON at the front Check the power supply source Be sure the input power to the panel modem s power connector is between 10 to 60VDC The MR LED should be on if the modem is powered up properly and when it is not in any loopback test mode Modem does not respond to the Check the connecting RS 232 or RS 485 cable between the DTE and attached DTE and the all LEDs the modem The MR DSR LED Modem Ready Data Set Ready on are off the front panel should be ON when the modem is idle Modem does not receive data Check the DIP switches of both modems to make sure that the same and the DCD and RxD LEDs are data rate and operating parameters are identical on both modems off The receive line pair may be disconnected from the modem Make sure the transmission line connection to the modem is accurate and secure The receive signal level may be below the CD threshold Set switch S1 5 ON to see whether configuring the modem for a 43 dBm threshold resolves the problem If this problem remains unresolved perform a local ALB loopback test to determine if the modem s receiver is functioning correctly The RTS CTS and TxD LEDs The attached termina
30. typical multipoint configuration using the SM19202FP modem LM EZI Eeee Modem oon i Sood Remote Terminal Workstation Figure 1 1 Point to Point Network Using the SM19202FP Modem i Modem Remote Terminal IM orkstation Modem Remote Terminal Modem Figure 1 2 Multipoint Polling Network Using the SM19202FP Modem There are a number of factors that can affect the modem s operation and performance These include Modem speed i e bit error rate transmission line distance 2 wire or 4 wire configuration Transmission line characteristics noise and line impairments Network configuration point to point or multipoint 8 User s Manual SM19202 Fast Poll Modem Chapter 2 Installation This chapter describes how to configure and install the modem to maximize the performance and to match with your Data Terminal Equipment DTE or Remote Terminal Unit RTU Unpacking Your Hardware Your package should include At least one of the following SM19202FP modems Model SM19202FP for 90 to 265 VAC Model SM19202FP DC for 10 to 60 VDC Model SM19202FP RM for RM16M plug in module A switching power supply module for 90 265VAC input model SM19202FP only A leased line cable with optional earth ground conductor for stand alone units only A DC power cable model SM19202FP DC modem only This
31. ustrial applications Leased line interface protected with heavy duty surge protection devices e Built in hardware watchdog timer for software lock up prevention without requiring human intervention making it ideal for unmanned locations e Works within an extended temperature range of 40 C to 85 C 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 SM19202FP 90 to 265 VAC or 100 to 400 VDC SM19202FP DC 10 to 60 VDC SM19202FP RM Plug in module for the Motorola UDS RM16M modem nest Standard industrial connectors for data analog and power interfaces allow reliable interconnection to other industrial equipment Asynchronous data rates selectable of 19200 9600 4800 2400 and 0 1800 bps Easily accessible DIP switches for user configuration and option selection DB9 F connector for RS 232 V 24 interface and RJ 11 for RS 485 Local analog local digital and remote digital loopback diagnostics 7 User s Manual SM19202 Fast Poll Modem Introduction Applications The SM19202FP modem is designed for point to point and multipoint data communications Figure 1 1 shows a typical point to point configuration using the SM19202FP modem and Figure 1 2 shows a
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