Patton electronics NetLink 2707C User Manual

Patton electronics NetLink 2707C User Manual

G.703 ntu with v.35, x.21 interfaces
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An ISO-9001
Certified Company
Part# 07M2707-UM
Doc# 08619U2-001,
Rev. B
Revised 10/27/06
USER
MANUAL
MODEL 2707C, D
G.703 NTU with
V.35, X.21
Interfaces
SALES OFFICE
(301) 975-1000
TECHNICAL SUPPORT
(301) 975-1007

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Summary of Contents for Patton electronics NetLink 2707C

  • Page 1 Part# 07M2707-UM Doc# 08619U2-001, Rev. B Revised 10/27/06 An ISO-9001 Certified Company USER MANUAL MODEL 2707C, D G.703 NTU with V.35, X.21 Interfaces SALES OFFICE (301) 975-1000 TECHNICAL SUPPORT (301) 975-1007...
  • Page 2: Table Of Contents

    Warranty Information ... 2 FCC Information ... 2 CE Notice... 2 Service... 3 General Information... 4 Features... 4 Description... 4 Configuration ... 5 DIP Switch Configuration... 5 Switch SW1-1 through SW1-8... 6 Switch SW1-1 Line Coding: HDB3 (default) ... 6 SW1-2 Local Loop: Inactive (default) ...
  • Page 3: Warranty Information

    1.0 WARRANTY INFORMATION Patton Electronics warrants all Model 2707 components to be free from defects, and will—at our option—repair or replace the product should it fail within one year from the first date of shipment. This warranty is limited to defects in workmanship or materials, and does not cover customer damage, abuse, or unauthorized modification.
  • Page 4: Service

    1.3 SERVICE All warranty and nonwarranty repairs must be returned freight prepaid and insured to Patton Electronics. All returns must have a Return Mate- rials Authorization number on the outside of the shipping container. This number may be obtained from Patton Electronics Technical Services at: Tel: (301) 975-1007 E-mail: support@patton.com URL: www.patton.com...
  • Page 5: General Information

    2.0 GENERAL INFORMATION Thank you for your purchase of this Patton Electronics product. This product has been thoroughly inspected and tested and is warranted for One Year parts and labor. If any questions or problems arise during installation or use of this product, please do not hesitate to contact Pat- ton Electronics Technical Support at (301) 975-1007 .
  • Page 6: Configuration

    3.0 CONFIGURATION The Model 2707 features configuration capability via hardware DIP switches. This section describes all possible DIP switch configurations of the Model 2707. 3.1 DIP SWITCH CONFIGURATION The Model 2707 has one internal DIP switch that allow configuration for a wide range of applications.
  • Page 7: Switch Sw1-1 Through Sw1-8

    Figure 2. Close up of configuration switches Switch SW1-1 through SW1-8 Position Function SW1-1 Line Code SW1-2 SW1-3 SW1-4 SW1-5 SW1-6 Clock Mode SW1-7 Clock Mode SW1-8 TM from DTE Switch SW1-1 Line Coding: HDB3 (default) Use Switch SW1-1 to control the Network Line Coding options. Set these options to be the same as the Line Coding given to you by your Service Provider.
  • Page 8: Sw1-2 Local Loop: Inactive (Default)

    Options: HDB3, AMI HDB3: In this line coding, the transmitter substitutes a deliberate bipolar violation when excessive zeros in the data stream are detected. The receiver recognizes these special violations and decodes them as zeros. This method enables the network to meet minimum pulse density requirements.
  • Page 9: Sw1-6 And Sw1-7 Clock Modes

    SW1-6 and SW1-7 Clock Modes Use Switches SW1-6 and SW1-7 to configure the 2707 for internal, external, or receive recover clock mode. Table 3: SW1-6 and SW1-7 Clock Modes SW1-6 Network Clock Internal Clock External Clock SW1-8: Enable/Disable Loop Tests from DTE Use Switch SW1-8 to allow Model 2707 to enter loopback tests when the DTE raises the appropriate loop request pin.
  • Page 10: Installation

    4.0 INSTALLATION Once the Model 2707 is properly configured, it is ready to connect to the G.703 interface, to the serial port, and to the power source. This section describes how to make these connections. 4.1 CONNECTING TO THE G.703 NETWORK The Power, G.703 and serial Line connections are located on the rear panel of the Model 2707.
  • Page 11: Connecting The Twisted Pair (120 Ohm) To The G.703 Network

    Connecting the Twisted Pair (120 Ohm) to the G.703 Network The Model 2707 is equipped with a single RJ-48C jack for connections to a 120 Ohm twisted pair G.703 network interface. If your G.703 network terminates via RJ-48C, use Figure 4 below to connect the 120 Ohm G.703 network channel.
  • Page 12: Power Connection

    The DCE/DTE strap is located near the DB15 connector on the top side of the board. The arrows on the top of the strap indicate the configura- tion of the X.21 port (for example, if the DCE arrows are pointing toward the DB-15 connector, the X.21 port is wired as a DCE).
  • Page 13: Dc Power

    DC Power The 36-60 VDC DC to DC adapter is supplied with the DC version of the Model 2707. The black and red leads plug into a DC source (nominal 48VDC) and the barrel power connector plugs into the barrel power sup- ply jack on the 2707.
  • Page 14: Operation

    When the Model 2707 has been properly configured and installed, it should operate transparently. This sections describes power-up, LED status monitors, and the built-in loopback test modes. 5.1 POWER-UP Before applying power to the Model 2707, please read section 4.3, “Power Connection”...
  • Page 15: Local Loop Diagnostics

    5.3 LOCAL LOOP DIAGNOSTICS The Model 2707 offers V.54 loop diagnostics. Use these diagnostics to test the NTU and any communication links. This test can be activated via DIP switches or via signals on the Model 2707 serial port interface. Operating Local Loopback (LL) The Local Loopback (LL) test checks the operation of the local Model 2707, and is performed separately on each unit.
  • Page 16: Model 2707, G.703 Specifications

    MODEL 2707, G.703 SPECIFICATIONS Network Data Rate: Network Connector: Nominal Impedance: Line Coding: Line Framing: Clocking: Distance: Configuration: Power Supply: Humidity: Temperature: Dimensions: APPENDIX A 2.048 Mbps RJ-48C/Dual Coax BNC (2707/D) 75/120 Ohm Selectable AMI or HDB3 G.703 (Unframed) Internal or Network (Receive Recover) Maximum 1.8 km (6,000 ft.) on 24 AWG Cable One 8-Position DIP Switches...
  • Page 17: Model 2707, Interface Pin Assignment

    APPENDIX B MODEL 2707, INTERFACE PIN ASSIGNMENT V.35 Interface (M/34F Female Connector) (DCE Configuration) Pin # 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 18 APPENDIX B - Continued V.35 TO V.35 (STRAIGHT- THROUGH CABLE) PIN Function Frame Ground Signal Ground TD (A) RD (A) TD (B) RD (B) SCTE (A) RT (A) SCTE (B) RT (B) V.35 TO V.35 (CROSS OVER CABLE) PIN OUT Function Frame Ground Signal Ground...
  • Page 19: Model 2707, Interface Pin Assignment

    APPENDIX C MODEL 2707, INTERFACE PIN ASSIGNMENT X.21 Interface (DB-15 Female Connector) (DTE/DCE Configuration) Pin # 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)
  • Page 20: D Model 2707, Factory Replacement Parts

    MODEL 2707, FACTORY REPLACEMENT PARTS AND ACCESSORIES Model # 2707/C G.703 NTU with a V.35 interface 2707/D G.703 NTU with an X.21 interface 2707/I G.703 NTU w/ 10Base-T EN interface 0805US American Power Cord 0805EUR European Power Cord CEE 7 0805UK United Kingdom Power Cord 0805AUS...

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X.21 interfaces

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