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Manual Patton electronic 2720

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  • Patton electronic 2720 - page 1

    USER MANU AL MODEL 2720/I T1/Fractional T1 CSU/DSU with Ethernet Bridging SALES OFFICE (301) 975-1000 TECHNICAL SUPPOR T (301) 975-1007 http://www .patton.com P ar t# 07M2720/I-A Doc#086181U A Revised 04/11/01 CERTIFIED An ISO-9001 Certified Company ...

  • Patton electronic 2720 - page 2

    1 2 T ABLE OF CONTENTS Section P age 1.0 W arranty Information .............................................................2 1.1 W arranty Statement 1.2 Radio and TV Interference 1.3 Equipment Attachment Limitations 1.4 FCC Compliance 1.5 Service Information 2.0 General Information ...............................................................4 2 ...

  • Patton electronic 2720 - page 3

    4 3 1.3 INDUSTR Y CANAD A NO TICE The Canadian Depar tment of Communications label identifies cer- tified equipment. This cer tification means that the equipment meets cer tain telecommunications network protective , operational and saf ety requirements. The Department does not guarantee the equipment will operate to the user's satisf action. ...

  • Patton electronic 2720 - page 4

    5 6 2.0 GENERAL INFORMA TION Thank you for your purchase of this Patton Electronics product. This product has been thoroughly inspected and tested and is warrant- ed for One Y ear parts and labor . If any questions arise during installa- tion or use of the unit, contact Patton Electronics T echnical Services at (301) 975-1007. 2.1 FEA TURES • T e ...

  • Patton electronic 2720 - page 5

    7 3.0 PPP Operational Bac kg round PPP is a protocol used for multi-plexed transport over a point- to-point link. PPP operates on all full duplex media, and is a sym- metric peer-to-peer protocol, which can be broken into three main components: 1. A standard method to encapsulate datagrams over serial links; 2. A Link Control Protocol (LCP) to esta ...

  • Patton electronic 2720 - page 6

    Line Framing Options: D4/Superframe : The D4 framing format, as specified in A T&T TR6241 1 is the standard in which twelve frames make up a superframe. All signaling and synchronization are done in- band. Extended Superframe (ESF) : Extended Superframe, as speci- fied in A T&T TR 54016, consists of twenty-four (24) T1 frames. The framing b ...

  • Patton electronic 2720 - page 7

    11 12 Switch S2-6 and S2-7: Cloc k Mode Set Switch S2-6 and S2-7 to determine the 2720’s transmitter tim- ing. S2-6 S2-7 Clock Mode Off Of f Network Cloc k . T ransmitter timing is derived from the received line signal. On Off Internal Clock . T ransmitter clock is derived from an internal oscillator . NO TE 1: When using the Model 2720 as a high ...

  • Patton electronic 2720 - page 8

    13 14 Switch S1-3: Tx Clock Inv er t Switch S1-3 allows the user to in ver t the transmit clock originating in the 2720. When S1-2 is set for tr ansmit clock, it may be necessary to inv er t the transmit clock to allow f or delays due to long cab les. S1-3 Tx Clock In v er t On T ransmit clock is in verted Off T ransmit clock is normal Switches S1- ...

  • Patton electronic 2720 - page 9

    15 16 4) When the unit is first turned on, the ter minal screen may appear blank. Press the [Enter] key . If y our ser ial connection is good, the unit will immediately displa y a pass word prompt. The f ollowing message will appear in the middle of the screen: 5) T ype in the password and press [Enter]. The factory default pass word f or the unit ...

  • Patton electronic 2720 - page 10

    17 18 The Main Menu options are briefly described below . System Configuration options allow you to change v ar ious aspects of the Model 2720’ s operation, e.g., framing, line cod- ing, and aggregate bandwidth. System Diagnostics/Statistics options allow you to monitor the network performance, initiate V .54 loops, local loops, and send test pat ...

  • Patton electronic 2720 - page 11

    19 20 B8ZS: Bipolar violations occur when consecutive pulses are of the same polarity . In B8ZS , or Bipolar Eight Zero Substitution, bipolar violations are introduced deliberately to indicate that eight zeros ha ve been transmitted. This special encoding is recognized b y the receiver and decoded correctly . See A T&T TR62411 Section 4.2.2 f o ...

  • Patton electronic 2720 - page 12

    21 22 Clocking : Network (def ault) Options: Network, Internal, External Network: This is the most commonly used setting when connect ing to a carrier’ s networ k. In this mode, the unit recov ers the clock from the receiv ed signal and uses it to transmit data. In this wa y the unit remains synchronized to a master clock. Incampus applications, ...

  • Patton electronic 2720 - page 13

    23 24 Remote In-band Loops : Enabled (def ault) Options: Enabled, Disabled In ESF , D4 and Unframed formats, the unit can respond to special repeating codes in the data stream that represent loopback com- mands. The command to loop up (go into loopback) is a repeating pat- tern of 00001s. This patter n ov erwr ites the nor mal data. When this code ...

  • Patton electronic 2720 - page 14

    25 26 3.2.3 System Diagnostics The System Diagnostics/Statistics screen looks like this: NO TE: This screen is updated once per second. The System Diagnostics/Statistics options and functions are described below . Local Loop: Idle (def ault) The Local Loop is a bi-lateral loopbac k in which the data from the local DTE and the data from the remote u ...

  • Patton electronic 2720 - page 15

    27 28 RxPr The Model 2720 is receiving a preparatory pattern. Sack The Model 2720, upon receiving a preparatory pattern, sends an acknowledgement message. RL The Model 2720 is in remote loopback mode. RxT r The Model 2720 is receiving a terminate loopback mes- sage. Wt1s The Model 2720 is waiting for a sequence of all ones and will time out if it d ...

  • Patton electronic 2720 - page 16

    29 30 Receive Alarm Indication [RAI] indicates that the local unit is receiv- ing a Y ellow Alarm. This alarm is sent by the remote unit or the central office when it loses the received signal. This indicates the local unit’ s transmitted signal is not reaching the remote unit. Rx Level The Model 2720 displays the current received signal strength ...

  • Patton electronic 2720 - page 17

    31 32 3.3.6 Unit Information The Unit Options screen looks like this (factory default): Header Line 1 & Header Line 2 Headers 1 and 2 are provided for easy identification of your unit after installation. Y ou may want to give each unit a unique name via the header lines to help distinguish one unit from another . Y ou can enter a header up to 4 ...

  • Patton electronic 2720 - page 18

    33 34 4 4 . . 0 0 I I N N S S T T A A L L L L A A T T I I O O N N The Model 2720 is equipped with DTE, network, and power inter- f aces. This section briefly describes connection to each. 4.1 Connecting the 10Base-T Ethernet Port to a PC (DTE) The 10Base-T Interface is configured as DTE (Data T erminal Equipment). If the Model 2720/I is to to conne ...

  • Patton electronic 2720 - page 19

    35 36 5 5 . . 0 0 O O P P E E R R A A T T I I O O N N Once the NetLink-T1™ 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 NetLink-T1™ is equipped with six LED indicators that monitor ...

  • Patton electronic 2720 - page 20

    5.2 LOOP (V .54 & TELCO) DIAGNOSTICS The NetLink-T1™ offers three V .54 loop diagnostics and is com- patible with two T elco loop diagnostics. Use these diagnostics to test the CSU/DSU and any communication links. These tests can be acti- vated via the software control port (See Section 3.2.3 System Diagnostics ), via signals on the serial po ...

  • Patton electronic 2720 - page 21

    40 39 2. Perform a bit error rate test (BERT) using the internal V .52 generator (as described in Section 5.3 ), or using a separate BER T ester . If the BER test indicates a fault, and the Local Line Loopback test was successful for both NetLink™s, you may have a problem with the twisted pair line connection. 5.2.3 CSU Loop The NetLink-T1™ als ...

  • Patton electronic 2720 - page 22

    42 APPENDIX A P A TTON NETLINK-T1 MODEL 2720 SPECIFICA TIONS W AN Speed: 1.544 Mbps W AN Connection: RJ-48C Nominal Impedance: 100 Ohms DTE Interface: 10Base-T Ethernet (802.3) Line Coding: AMI/B8ZS Line Framing D4/ESF/Unframed Receive LBO: Automatic T ransmit LBO: Selectable - 0, 7.5, 15, or 22.5 dB, plus DSX-1 Clock Options: Internal or network c ...

  • Patton electronic 2720 - page 23

    43 44 APPENDIX C P A TTON NETLINK-T1™ MODEL 2720 F ACT OR Y REPLACEMENT P ARTS AND A CCESSORIES Patton Model # Description 10 - 09F ............................6 Foot Control Port Cable, 2.5mm to DB9F 07M2720/I........................User Manual 2720/C/UI.........................T1 N x 64 CSU/DSU(M/34 female, UI) 2720/B/UI........................ ...

Manufacturer Patton electronic Category Network Router

Documents that we receive from a manufacturer of a Patton electronic 2720 can be divided into several groups. They are, among others:
- Patton electronic technical drawings
- 2720 manuals
- Patton electronic product data sheets
- information booklets
- or energy labels Patton electronic 2720
All of them are important, but the most important information from the point of view of use of the device are in the user manual Patton electronic 2720.

A group of documents referred to as user manuals is also divided into more specific types, such as: Installation manuals Patton electronic 2720, service manual, brief instructions and user manuals Patton electronic 2720. Depending on your needs, you should look for the document you need. In our website you can view the most popular manual of the product Patton electronic 2720.

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A complete manual for the device Patton electronic 2720, how should it look like?
A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use Patton electronic 2720 by users. Manuals are usually written by a technical writer, but in a language understandable to all users of Patton electronic 2720.

A complete Patton electronic manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

1. Preface and tips on how to use the manual Patton electronic 2720 - At the beginning of each manual we should find clues about how to use the guidelines. It should include information about the location of the Contents of the Patton electronic 2720, FAQ or common problems, i.e. places that are most often searched by users in each manual
2. Contents - index of all tips concerning the Patton electronic 2720, that we can find in the current document
3. Tips how to use the basic functions of the device Patton electronic 2720 - which should help us in our first steps of using Patton electronic 2720
4. Troubleshooting - systematic sequence of activities that will help us diagnose and subsequently solve the most important problems with Patton electronic 2720
5. FAQ - Frequently Asked Questions
6. Contact detailsInformation about where to look for contact to the manufacturer/service of Patton electronic 2720 in a specific country, if it was not possible to solve the problem on our own.

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