Patton electronics 2073RC User Manual

64k/g.703 access converter

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Part# 07M2073RC
Doc# 031151U Rev. A
Revised 1/23/03
An ISO-9001Certified
Company
USER
MANUAL
MODEL 2073RC
64k/G.703 Access
Converter
SALES OFFICE
(301) 975-1000
TECHNICAL SUPPORT
(301) 975-1007

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Summary of Contents for Patton electronics 2073RC

  • Page 1 Part# 07M2073RC Doc# 031151U Rev. A Revised 1/23/03 An ISO-9001Certified Company USER MANUAL MODEL 2073RC 64k/G.703 Access Converter SALES OFFICE (301) 975-1000 TECHNICAL SUPPORT (301) 975-1007...
  • Page 2: Table Of Contents

    Remote Loop ... 9 Switch SW3-4 Response to Remote digital (RDL) Loopback... 9 Switch SW3-3 Terminal (DTE) data sampled using the 2073RC Transmit clock or External Clock (provided by V.35 DTEs only) ... 9 Configuring the Rear Interface Card... 10 Model 1001RCM13448C Strap Settings ...
  • Page 3 A.2 Transmission Line ... 24 A.3 Clocking ... 24 A.4 Interface Modules ... 24 A.5 Line Rates ... 24 A.6 DTE Rates ... 24 A.7 Diagnostics ... 24 A.8 LED Status Indicators ... 24 A.9 Connectors ... 24 A.10 Temperature Range ... 24 A.11 Altitude ...
  • Page 4: Warranty Information

    The Model 2073RC has been tested and found to comply with the limits for a Class A computing device in accordance with specifica-...
  • Page 5: Service

    Patton Electronics' technical staff is also available to answer any ques- tions that might arise concerning the installation or use of your Model 2073RC. Technical Service hours: 8 AM to 5 PM EST (8:00 to 17:00 UTC-5), Monday through Friday.
  • Page 6: General Information

    X.21 or ethernet device to communicate bi-directionally over the G.703 co- directional PCM network. Supporting internal, external DTE timing or G.703 network generated timing, the Model 2073RC is perfect for network- ing applications that require speeds of 64 kbps. The modular rear cards...
  • Page 7: Configuration

    This section describes all possible hardware switch configuration. Figure 1 shows the location of the DIP switches on the top of the printed circuit board Figure 1. Model 2073RC top view showing location of DIP switches Figure 2 shows the orientation of the DIP switches with respect to ON/ OFF positions.
  • Page 8: Configuring The Front Interface Card

    3.1 CONFIGURING THE FRONT INTERFACE CARD Switches SW3-2 and SW3-1: Clocking Mode Use Switch SW3 to set the system clock for the Model 2073RC. When using two Model 2073RC together in a point-to-point application as short range modems, set one unit for either Internal or External transmit clock and the other unit to Network clock.
  • Page 9: Switches Sw3-5: Front Panel Switch Enabled/Disabled

    Switch SW3-4 Response to Remote digital (RDL) Loopback Use Switch SW3-4 to enable or disable response to Remote digital Loop- back by the local 2073RC when a RDL request is sent by a remote device. SW3-4 Switch SW3-3 Terminal (DTE) data sampled using the 2073RC Transmit clock or External Clock (provided by V.35 DTEs only)
  • Page 10: Configuring The Rear Interface Card

    3.2 CONFIGURING THE REAR INTERFACE CARD Your Model 2073RC comes with one of the following rear cards: • The Model 1001RCM13448C (M/34/ RJ-48C) • The Model 1001RCM11548C (DB-15/RJ-48C) • The Model IM2RC/IA (RJ-45/10Base-T RJ-48C) Each of these options supports one DTE interface connection and one 4- wire line connection.
  • Page 11 Figure 4. Orientation of Interface Card Straps The following sections describe the strap locations and possible settings for each rear card.
  • Page 12: Model 1001Rcm13448C Strap Settings

    Model 1001RCM13448C Strap Settings Figure 5 shows the strap location for the Model 1001RCM13448C (M/34) rear card. This strap determines whether Signal Ground and Frame Ground will be connected. Figure 5. 1001RCM13448C strap locations. Table 1 provides an overview of interface strap functions for the rear interface cards.
  • Page 13: Dte Shield (M/34 Pin A) & Frgnd (Jb3)

    DTE Shield (M/34 Pin A) & FRGND (JB3). In the connected position, this strap links M/34 pin A & frame ground. In the open position, pin A is disconnected from frame ground (see Table 2). Position 1 & 2 DTE Shield (Pin A) and FRGND Connection 2 &...
  • Page 14: Dte Shield (Db-15 Pin 1) & Frgnd (Jb3)

    Table 4 provides an overview of interface strap functions for the rear interface cards. Following the table overview are detailed descriptions of each strap’s function. Strap DTE Shield (Pin1) & FRGND FRGND & SGND (Pin 8) DTE Shield (DB-15 Pin 1) & FRGND (JB3). In the connected position, this strap links DB-15 pin 1 &...
  • Page 15: Sgnd & Frgnd (Jb4)

    SGND & FRGND (JB4). In the connected position, this strap links DB-15 pin 8 (Signal Ground) and frame ground through a 100 ohm resistor. In the open position, pin 8 is connected directly to frame ground (see Table 6). Position 1 &...
  • Page 16: Link

    • 4 pulses = IMRC2/IAbuffer is saturated • 5 pulses = WAN receive frame(s) too large • 6 pulses = WAN receive frame(s) not Octet aligned • 7 pulses = WAN receive frame(s) aborted • 8 pulses = Detected WAN receive frame(s) with bad CRC •...
  • Page 17 Note If the 2073RC is being used for private short-range modem applications, the twisted-pair cable connected to its port will need to be a cross-over cable.
  • Page 18: Installation

    This section describes the functions of the Model 1001R14 rack chassis, tells how to install front and rear Model 2073RC Series cards into the chassis, and how to connect to the twisted pair interface and the serial interface. 4.1 THE MODEL 1001R14 RACK CHASSIS The Model 1001R14 Rack Chassis (see Figure 10) has 14 or 16 device card slots, plus a single power supply or dual redundant power supplies.
  • Page 19: Powering Up Your 1001R14 Rack

    4.2 INSTALLING THE MODEL 2073RC INTO THE CHASSIS The Model 2073RC is comprised of a front card and a rear card. The two cards meet inside the rack chassis and plug into each other by way of mating 50 pin card edge connectors. Use the following steps as a guide- line for installing each Model 2073RC into the rack chassis: 1.
  • Page 20: Connecting To A G.703/64 Kbps Network

    RJ-48C (see Figure 11). Figure 11. NetLink-E1 twisted-pair interface Note If the 2073RC is being used for private short-range modem applications, the twisted-pair cable connected to its port will need to be a cross-over cable. 1 RX data (TIP)
  • Page 21: Operation

    Once the 2073RC is installed and configured properly it is ready to place into operation.This section describes the function of the LED indicators, and the use of the loopback and pattern test modes. 5.1 LED DESCRIPTIONS The 2073RC is equipped with 12 LED indicators that monitor the status of communication.
  • Page 22: Loop (V.54 & Telco) Diagnostics

    To perform a LL test, follow these steps: 1. The Local Loop can be initiated from the 2073RC unit either by acti- vating the LL signal on the DTE (if you are not sure which lead is the RDL signal, please refer to the Appendix,) or by toggling the top front panel switch towards the label “LLB”.
  • Page 23: Operating Remote Digital Loopback (Rdl)

    The Remote Digital Loopback (RDL) test checks the performance of both the local and remote 2073RC as well as a point-to-pointcommunication link between them. Any characters sent to the remote 2073RC in this test mode will be returned back to the originating device (i.e,characters typed on the keyboard of the local terminal will appear on the local terminal screen after having been passed to the remote 2073RC and looped back).
  • Page 24: Model 2073Rc Specifications

    APPENDIX A MODEL 2073RC SPECIFICATIONS A.1 TRANSMISSION FORMAT Synchronous 64k/G.703 co-directional A.2 TRANSMISSION LINE Four-Wire unconditioned twisted pair A.3 CLOCKING Internal, External (V.35 only), or Network A.4 INTERFACE MODULES ITU/T V.35, ITU/T X.21, 10Base-T A.5 LINE RATES 256 kbps A.6 DTE RATES 64 kbps A.7 DIAGNOSTICS...
  • Page 25: B Interface Pin Assignment

    APPENDIX B INTERFACE PIN ASSIGNMENT V.35 Interface (M/34F Female Connector) (DCE Configuration) Pin # Signal SGND (Signal Ground) RTS (Request to Send) CTS (Clear to Send) DSR (Data Set Ready) CD (Carrier Detect) DTR (Data Terminal Ready) LLB (Local Line Loop) TM (Test Mode) RDL (Remote Digital Loop) TD(Transmit Data)
  • Page 26 X.21 Interface (DB-15 Female Connector) (DTE /DCE Configuration) Pin # Signal Frame Ground T (Transmit Data-A) C (Control-A) R (Receive Data-A) I (Indication-A) S (Signal Element Timing-A) BT (Byte Timing-A) SGND (Signal Ground) T/ (Transmit Data-B) C/ (Control-B) R/ (Receive Data-B) I/ (Indication-B) S/ (Signal Element Timing-B) BT/ (Byte Timing-B)
  • Page 27 Notes _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________...
  • Page 28 Notes _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ Copyright © 2003 Patton Electronics Company All Rights Reserved.

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