Patton electronic 2720/I Seriesの取扱説明書

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Summary
  • Patton electronic 2720/I Series - page 1

    USER MANU AL MODEL 2720/I Series NetLink-T1™ T1/Fractional T1 CSU/DSU SALES OFFICE (301) 975-1000 TECHNICAL SUPPORT (301) 975-1007 http://www .patton.com Part# 07M2720I-UM Doc#08618U2-001, Rev . B Revised 10/26/06 An ISO-9001 Certified Company Copyright © 2006 Patton Electronics Company All Rights Reserved ...

  • Patton electronic 2720/I Series - page 2

    1 2 T ABLE OF CONTENTS Section Page 1.0 W arranty Information .............................................................2 1.1 W arranty Statement 1.2 Radio and TV Interference 1.3 Industry Canada Notice 1.4 FCC Compliance 1.5 Service Information 1.6 CE Notice 2.0 General Information ............................................................... ...

  • Patton electronic 2720/I Series - page 3

    4 3 1.3 INDUSTR Y CANADA NOTICE The Canadian Department of Communications label identifies cer- tified equipment. This certification means that the equipment meets certain telecommunications network protective, operational and safety requirements. The Department does not guarantee the equipment will operate to the user's satisfaction. Before i ...

  • Patton electronic 2720/I Series - page 4

    6 3.0 PPP Operational Background 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 symmetric 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 establish ...

  • Patton electronic 2720/I Series - page 5

    7 For example, the customer site is assigned the addresses 192.168.1.0/24 through 192.168.1.1/24. The address 192.168.1.1/24 is also the default gateway for the remote network. The above settings remove any routing/forwarding intelligence from the CPE. The associ- ated Cisco configuration will set serial interface (s0) to accommodate half bridging ...

  • Patton electronic 2720/I Series - page 6

    Switch S2-6 and S2-7: Clock 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 Clock . T ransmitter timing is derived from the received line signal. On Off Internal Clock . T ransmitter clock is derived from an internal oscillator . NOTE 1: When using the Model 2720 as a high-speed sh ...

  • Patton electronic 2720/I Series - page 7

    11 12 3.1.2 Switch S1 The chart below shows the default configurations for Switch S1. A description of all S1 options follows this table. Switch S1-1: RDL T ype Switch S1-1 selects the type of Remote Digital Loopback that the 2720 will initiate when the RDL is initiated from this unit. The 2720 will respond to both the V54 and the CSU loopback rega ...

  • Patton electronic 2720/I Series - page 8

    13 14 3.2 SOFTW ARE CONFIGURA TION The Model 2720 features a menu-driven command system that allows you to monitor/configure its operating parameters. Follow the instructions below to configure the Model 2720 using the software selections: 1) Plug the 9-pin male end of the cable to your terminal or com- puter ’s DB-9 serial port and start up the ...

  • Patton electronic 2720/I Series - page 9

    15 16 3.2.1 Introduction to Main Menu After entering the password, you may access all of the system’s functions and parameters. The Main Menu looks like this: HELPFUL HINTS 1. T o make a selection, key the highlighted letter that corre- sponds to a menu selection. 2. T o execute the selection, type [Enter/CR] 3. T o toggle between options on a hi ...

  • Patton electronic 2720/I Series - page 10

    17 18 3.2.2 System Configuration The default System Configuration menu looks like this: The System Configuration options are described below: Line Format: ESF (default) Options: ESF , D4, UNFRAMED D4: This is an older , but widely used, line format that does not provide FDL, so network interface performance cannot be monitored so easily . A T&T ...

  • Patton electronic 2720/I Series - page 11

    Clocking : Network (default) Options: Network, Internal, External Network: This is the most commonly used setting when connect ing to a carrier ’s network. In this mode, the unit recovers the clock from the received signal and uses it to transmit data. In this way the unit remains synchronized to a master clock. In campus applications, one of the ...

  • Patton electronic 2720/I Series - page 12

    21 22 ESF Data Link: ANSI T1.403 (default) Options: ANSI T1.403, A T&T TR54016 ANSI T1.403: This ANSI developed standard (see ANSI T1.403- 1995: Network-to-Customer Installation—DS1 Metallic Interface) uses the FDL to send and receive one second Performance Report Messages (PRMs). The messages con- tain the NI performance over the last four s ...

  • Patton electronic 2720/I Series - page 13

    23 24 unit. This will cause the unit to enter a special mode. Then turn off the unit and change the switch settings to the desired settings. When you turn the unit on again, the unit will be set up with the selected switch settings. DS0 Channel Configuration Menu: [ Bandwidth/# Channels = 1,536/24 ] (default) The DS0 Channel Configuration Menu has ...

  • Patton electronic 2720/I Series - page 14

    25 26 Remote Loop Idle (default) The Remote Digital Loopback (RDL) test checks the performance of both the local and remote Model 2720s, as well as the communica- tion link between them. Data from the local DTE is sent across the entire communication circuit and looped back to the local DTE. The Model 2720 Initiating a RL can be in one of the follo ...

  • Patton electronic 2720/I Series - page 15

    27 28 NI ST A TUS The Network interface (NI) status is shown in the middle of the Diagnostics/Statistics screen. The brackets are empty when the link is operat- ing normally . In this example, various two or three-letter messages are displayed within the brackets, illustrating what you may see if the Model 2720 is not connected at all or is in a lo ...

  • Patton electronic 2720/I Series - page 16

    29 30 Rx PRM The NetLink-T1™ transmits ANSI performance report messages once a second when the framing mode is ESF . When the ESF Data Link is set to ANSI T1.403, the unit recognizes PRMs with addresses of 38h or 3Ah. The address 3Ah indicates the PRM is coming from a Carrier , whereas the address 38h indicates the PRM is coming from a Customer . ...

  • Patton electronic 2720/I Series - page 17

    31 32 Loop Timeout The Loop T imeout setting can be set to one of the following: 00:05 = five minutes 00:10 = ten minutes 00:15 = fifteen minutes 00:30 = thirty minutes (default setting) 00:45 = forty-five minutes 01:00 = one hour 01:30 = 90 minutes 02:00 = two hours 03:00 = three hours NEVER = forever—the unit will remain in loopback without use ...

  • Patton electronic 2720/I Series - page 18

    33 34 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/I Series - page 19

    35 36 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 ser ...

  • Patton electronic 2720/I Series - page 20

    5.3 BIT ERROR RA TE (V .52) DIAGNOSTICS The NetLink-T1™ offers three V .52 Bit Error Rate (BER) test pat- terns. These test patterns may be invoked along with the LAL and RDL tests to evaluate the unit(s) and the communication links. When a 51 1, 2047, or QRSS test is invoked, the NetLink-T1™ generates a pseudo-random bit pattern of 51 1 bits, ...

  • Patton electronic 2720/I Series - page 21

    40 39 APPENDIX B P A TTON NETLINK-T1™ MODEL 2720 CABLE RECOMMENDA TIONS The Patton Model 2720 Series has been performance tested by Patton technicians using twisted-pair cable with the following charac- teristics: W ire Gauge Capacitance Resistance 19 A WG 83nf/mi or 15.72 pf/ft. .0163 Ohms/ft. 22 A WG 83nf/mi or 15.72 pf/ft. .0326 Ohms/ft. 24 A ...

  • Patton electronic 2720/I Series - page 22

    42 APPENDIX D P A TTON NETLINK-T1™ MODEL 2720 INTERF ACE PIN ASSIGNMENT RJ-48C T1 (DS0) Network Interface (Female Modular Jack) Pin # Signal 1 RX Data (TIP 1) 2 RX Data (RING1) 4 TX Data (TIP) 5 TX Data (RING) TRS Jack (RS-232 Control Port) Pin # Signal Source Tx Data From Model 2720 Rx Data T o Model 2720 Sleeve N/A RS-232 Control Port (Signals ...

  • Patton electronic 2720/I Series - page 23

    43 44 APPENDIX E P A TTON NETLINK-T1™ MODEL 2720 EIA-530 INTERF ACE PIN ASSIGNMENT DB-25 Female Connector , T erminal Interface Pin # Signal 1 FG (FrameGround) 2 TD (T ransmit Data-A, DTE Source) 3 RD (Receive Data-A, DCE Source) 4 RTS (Request to Send-A, DTE Source) 5 CTS (Clear to Send-A, DCE Source) 6 DSR (Data Set Ready-A, DCE Source) 7 SGND ...

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