Telenetics DSP9612RM manuale d’uso

¤ DSP9612RM Flash Poll Rack-Mount Modem User’s Guide 0049 − 0519 − 000 Rev. A ARC Electronics 800-926-0226 www.arcelect.com[...]

Compliances This device complies with Part 15A of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. This equipment has been tested and found to com ply with the [...]

Page iii Contents CHAPTER 1 INTRODUCTION ................................ ......................... 5 F EATURES ................................ ................................ ................................ 6 A PPLICATIONS ................................ ................................ ......................... 7 A NCILLARY D OCUMENTATION ...[...]

Contents Page iv N OTES[...]

Page 5 Chapter 1 Introduction ongratulations for purchasing the finest industrial-grade fast- poll rack-mount modem available. The Telenetics DSP9612RM (Flash Poll) modem is a 9600/4800/0-1800 bps rack-mount modem designed for 4-wire, full- duplex or 2-wire, half-duplex operation over a voice-band leased line. The modem is designed utilizing the la[...]

Introduction Page 6 Features Though functionally similar to comm ercial modems , the DSP9612RM provides the following unique features that make it well suited for utility and industrial applications. c Requires only one rack slot in a Telenetics or a Motorola/UDS RM16M Universal Data Shelf. c Operates over voice-band conditioned or unconditioned le[...]

Applications Page 7 Applications The DSP9612RM modem is designed for point-to-point and m ultipoint data communications. Figure 1-1 shows a typical m ultipoint configuration. Figure 1-1. Netw ork of Multipoint Configuration There are a number of factors that can affect the network ’ s and modem ’ s operation and perform ance. These include: c O[...]

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Page 9 Chapter 2 Installation his chapter describes how to install the modem. Unpacking Y our Hardware Your package should include: c At least one DSP9612RM modem c This User ’ s Guide If your package contents are damaged or missing, please contact your place of purchase immediately. Additional Items Y ou Need To use your modem, you need the foll[...]

Installation Page 10 Hardware Overview Front View Figure 2-1 shows a front view of the DSP9612RM modem. Starting from the top, this view shows: c A loopback test switch. See page 28. c A set of eight LEDs. See page 27. Figure 2-1. Front View of Modem[...]

Hardware Overview Page 11 Component View Figure 2-2 shows the component view of the modem . This view shows: c Two configuration switch blocks, designated SW1 and SW2 . See page 12. c Jumpers located in various positions on the modem . Do not change or remove the straps from these jum pers. c Edge connectors at the back of the modem, which plug int[...]

Installation Page 12 Installation Summary The modem installation involves the following steps: 1. Configuring the modem. See the section below. 2. Connecting to a transmission line. See page 25. 3. Connecting an RS-232 device. See page 26. Configuring the Modem You configure the modem using the two sets of DIP switches on the component side of the [...]

Configuring the Modem Page 13 Table 2-1. Modem Sw itch Settings for High-Speed Mode Switch Settings Switches ON OFF (Default) SW 1-1 − 1-4: Transmit Level (page 14 ) (see Table 2-2 on page 14) SW 1-5: Receiver Dynamic Range (page 15) − 10 to − 43 dBm +3 to − 30 dBm SW 1-6: TX Cable Equalizer (page 15) Enabled Disabled SW 1-7: RX Cable Equal[...]

Installation Page 14 SW1-1 through SW1-4 − Transmit Level (high- & low-speed modes) Switches SW1-1 through SW1-4 adjust the modem ’ s transm it level. Table 2-2 shows the transmit levels you can select using these switches. Table 2-2. Transmit Levels (High-Speed and Low-Speed Modes) SW1 through SW4 Switch Settings Transmit Level SW1-1 SW1-2[...]

Configuring the Modem Page 15 SW1-5 − Receiver Dynamic Range (high- & low-speed modes) SW1-5 ON = − 10 to − 43 dBm OFF = +3 to − 30 dBm For a low receive signal level, set SW1-5 to ON ( − 43 dBm ). For short distances or to select a strong receive signal, set SW1-5 to OFF. SW1-6 and SW1-7 − Cable Equalizer (high-speed mode only) SW1[...]

Installation Page 16 SW2-1 − Fast Poll/FSK (high- & low-speed modes) SW2-1 ON = Low-Speed Mode (FSK) OFF = High-Speed Mode (Fast Poll) SW2-1 configures the modem for either low-speed (FSK) m ode or high-speed (Fast Poll) mode. As a result, the SW2-1 setting you choose determines the switch definitions for the other switches. c For high-speed [...]

Configuring the Modem Page 17 SW2-8 − Carrier Control (high- & low-speed modes) SW2-8 ON = Constant OFF = Switched SW2-8 selects either constant or switched carrier. Constant carrier allows DTEs, such as asynchronous dumb terminals or RTUs, to operate with modems, without the input RTS signal. When constant carrier mode is enabled (SW2-8 set [...]

Installation Page 18 Low-Speed (FSK) Mode Table 2-3 shows the modem switch settings that can be used when the modem is configured for low-speed (FSK) m ode. This mode is enabled when switch SW2-1 is set to ON. Following this table is an explanation of these settings. Table 2-3. Modem Sw itch Settings for Low -Speed Mode Switch Settings Switches ON [...]

Configuring the Modem Page 19 SW1-1 through SW1-4 − Transmit Level (high- & low-speed modes) Switches SW1-1 through SW1-4 adjust the modem ’ s transm it level. Table 2-4 shows the transmit levels you can select using these switches. Table 2-4. Transmit Levels (High-Speed and Low-Speed Modes) SW1-1 through SW1-4 Switch Setting s Transmit Lev[...]

Installation Page 20 SW1-5 − Receiver Dynamic Range (high- & low-speed modes) SW1-5 ON = − 10 to − 43 dBm OFF = +3 to − 30 dBm For a low receive signal level, set SW1-5 to ON ( − 43 dBm ). For short distances or to select a strong receive signal, set SW1-5 to OFF. SW1-6 and SW1-7 − RTS-CTS Delay (low-speed mode only) Switches SW1-6 [...]

Configuring the Modem Page 21 SW2-1 − Fast Poll/FSK (high- & low-speed modes) SW2-1 ON = Low-Speed Mode (FSK) OFF = High-Speed Mode (Fast Poll) SW2-1 configures the modem for either low-speed (FSK) m ode or high-speed (Fast Poll) mode. As a result, the SW2-1 setting you choose determines the switch definitions for the other switches. c For hi[...]

Installation Page 22 SW2-5 − Soft Carrier (low-speed mode only) SW2-5 ON = Disabled OFF = Enabled SW2-5 controls the soft carrier and is valid for low-speed mode only. Setting this switch to OFF configures the modem to transm it a 900 Hz soft carrier to the remote modem after RTS is turned off. Setting this switch to ON prevents the modem from tr[...]

Installing the Modem in the Universal Data Shelf Page 23 In switched-carrier mode (SW2-8 set to OFF), the RTS/CTS delay is 23 ms. SW 2-9 − RX Termination (high- & low-speed modes) SW2-9 ON = Disable Rx Termination OFF = Enable Rx termination SW2-9 selects whether RX termination is enabled for a modem . If you set this switch OFF, the receiver[...]

Installation Page 24 3. Remove the front panel of the Universal Data Shelf and pick an empty slot. 4. Hold the modem so the front panel LEDs are facing you and the edge connectors are pointing to the backplane of the Universal Data Shelf. 5. Install the modem into the selected slot in the Universal Data Shelf (see Figure 2-3). 6. Push firmly on the[...]

Connecting to a Transmission Line Page 25 Figure 2-4. Modems Installed in the Rack Connecting to a T ransmission Line The Universal Data Shelf has different Telco options. Your version may have 16 8-pin modular jack connectors, one for each slot in the Shelf. It may also have an optional 50-pin mass-term ination Telco connector. To connect your mod[...]

Installation Page 26 c The Tx line of the Shelf ’ s RJ-45 jack must connect to the Rx line of the other modem. For more information, refer to the Telenetics RM16M Installation and Operation Manual for the Universal Data Shelf version you have. Mass Termination Connector As an option, a 50-pin mass-termination connector can be used as the Telco co[...]

LEDs Page 27 LEDs The front panel of the modem provides the LEDs shown in Table 2-7. Table 2-7. Modem LEDs LED Color Description Power Green Power RTS Yellow Request To Send CTS Yellow Clear To Send TxD Yellow Transmit Data RxD Yellow Receive Data DCD Yellow Carrier Detect ALB Red* Analog Loopback DLB Red* Digital Loopback * When the modem is in re[...]

Installation Page 28 Loopback Control Switch The front panel of the modem has a push button for initiating the following loopback diagnostic tests: c Local analog loopback  started by pressing the button one time. c Local digital loopback  started by pressing the button two times. c Remote digital loopback  set the local modem ’ s RTS si[...]

Page 29 Appendix A Troubleshooting n the event you encounter a problem using your Telenetics modem , refer to the troubleshooting information in this appendix. To troubleshoot the power supply and backplane on the Universal Data Shelf, refer to the Telenetics RM16M Installation and Operation Manual for the Universal Data Shelf version you have. , I[...]

Troubleshooting Page 30 Table A-1. Troubleshooting Suggestions If … Perform These Procedures … The RTS , CTS , and TxD LEDs do not blink. The attached terminal or DTE may not be sending data to the 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[...]

Page 31 Appendix B Specifications General Specifications Data rate : 9600, 4800, or 0-1800 bps asynchronous Data format : 8 or 9 data bits with 1 or m ore stop bits DTE interface : EIA RS-232 or V.24 compatible Line conditions : TELCO Voice band 4- or 2-wire leased line, conditioned or unconditioned Private metallic circuits up to 9.5 miles (24 AWG[...]

Specifications Page 32 Receiver dynamic range: 0 to – 30 dBm or – 10 to – 43 dBm Operating temperature: -40 ° C to +85 ° C Surge protection: Leased line, up to 15KV Carrier Control : Constant or switched, DIP switch selectable Carrier loss recovery : Train on Data Throughput delay : Less than 10 milliseconds for fast polling. Auto RTS: Supp[...]

Back-to-Back Connections to a Second Modem Page 33 Back-to-Back Connections to a Second Modem Rx Rx Rx Rx Tx Tx Tx Tx Modem 1 Modem 2 RS-232 (RTU) Interface 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 O[...]

Specifications Page 34 Environmental Specifications Operating temperature: -40 to + 85 o C Storage temperature: -40 to +125 o C Operating humidity: 5 to 95 %, non-condensing. Isolation: 3750 V RMS Surge protection: Leased line up to 15K VA Compliances The modem is designed to m eet the following agency requirements: EMI/RFI: FCC part 15 for Class A[...]

Page 35 Appendix C Limited Product Warranty Telenetics warrants that the Product sold will be free f rom defects in material and workmanship and perform to Telenetics' applicable published specif ications for a period of 18 months from the date of delivery to Customer or 12 months from placement into service, whichever occurs first. The liabil[...]

Page 36 Appendix D RMA Procedure Return Merchandise Authorization (RMA) Procedure Before returning any Telenetics product, an RMA number must be obtained. Bef ore asking for an RMA number, ascertain that the product was purchased from Telenetics. If you bought the product from a Distributor or Systems Integrator, the product should be returned to t[...]