Patton electronics 2701RC Series User Manual

Patton electronics 2701RC Series User Manual

E1/fractional e1 csu/dsu rack card
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Pa r t# : 0 7 M 2 7 0 1 R C
R ev. H
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USER
MANUAL
MODEL 2701RC Series
NetLink-E1
E1/Fractional E1
CSU/DSU Rack Card
SALES OFFICE
(301) 975-1000
TECHNICAL SUPPORT
(301) 975-1007
TM

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Summary of Contents for Patton electronics 2701RC Series

  • Page 1 USER MANUAL MODEL 2701RC Series NetLink-E1 E1/Fractional E1 CSU/DSU Rack Card SALES OFFICE Pa r t# : 0 7 M 2 7 0 1 R C R ev. H (301) 975-1000 R evis e d 1 1 /1 1 /1 1...
  • Page 2: Table Of Contents

    CONTENTS Warranty Information ..............5 Warranty Statement..............5 Compliance................... 6 EMC Compliance:................. 6 Safety Compliance: ..............6 PSTN Regulatory:................. 6 Service..................6 General Information..............7 Features..................7 General Product Description............7 Configuration ................9 DIP switch configuration ............... 9 Switches S1-1 through S1-8 ............10 Switch S1-1 Line Coding ............
  • Page 3 DTE Shield (DB-15 Pin 1) & FRGND (JB3) ......24 SGND & FRGND (JB4) ............25 Model 1001RCM11575 Strap Settings ........25 VT-100 software Configuration ........... 26 Accessing the Menu System ............26 Introduction to Main Menu ............29 System Configuration ..............30 System Diagnostics ..............
  • Page 4 A.13 DS0 Mapping Position ..............59 A.14 Diagnostics ................. 59 A.15 Indicators ..................59 A.16 Configuration ................59 A.17 Power Supply ................59 A.18 Humidity ..................59 A.19 Temperature ................59 A.20 Dimensions ................. 59 Cable Recommendations............60 Factory replacement parts and accessories......61 E1 Interface Pin Assignment ...........
  • Page 5: Warranty Information

    Electronics Technical Services at (301) 975-1007. 1.1 WARRANTY STATEMENT Patton Electronics warrants all Model 2701RC Series components to be free from defects, and will—at our option—repair or replace the prod- uct should it fail within one year from the first date of shipment. This war- ranty is limited to defects in workmanship or materials, and does not cover customer damage, abuse, or unauthorized modification.
  • Page 6: Compliance

    1.2 COMPLIANCE EMC Compliance: • EN55022, Class A • EN55024 Safety Compliance: • IEC/EN 60950-1 • AS/NZS 60950-1 PSTN Regulatory: • TBR 12 & 13 • AS/ACIF S016 1.3 SERVICE All warranty and nonwarranty repairs must be returned freight prepaid and insured to Patton Electronics.
  • Page 7: General Information

    2.2 GENERAL PRODUCT DESCRIPTION The Model 2701RC Series are single port E1/FE1 CSU/DSUs that provide high-speed WAN connectivity in a rack card package. Connecting to the serial WAN port of a switch, router or multiplexer, the NetLink-E1™ provides E1 or FE1 access connection at data rates of 2.048 Mbps and nx64.
  • Page 8 agable through the 1001MC. With a 1001CC card, a terminal can manage addressable 2701RC cards using menu driven controls. The Netlink-E1™ uses AMI and HDB3 line coding. Netlink-E1™ also supports a full range of system and diagnostic features that make system setup easy. The NetLink-E1™...
  • Page 9: Configuration

    Figure 1 shows the location of the DIP switches on the top of the printed circuit board. Figure 1. Model 2701RC Series top view showing location of DIP switches DIP Switches S1, S2, and S3 can be configured as either “On” or “Off”.
  • Page 10: Switches S1-1 Through S1-8

    Note Hardware reset allows users to put the 201RC under switch control. You may force the unit to use the DIP switches as the default configuration source by turning off the unit, setting all the S3 DIP switches to the ON position, then powering on the unit. This will cause the unit to enter a special mode.
  • Page 11: S1-2 And S1-3 Clock Modes

    AMI. Alternate Mark Inversion defines a pulse as a “mark,” a binary one, as opposed to a zero. In an E1 network connection, signals are transmit- ted as a sequence of ones and zeros. Ones are sent as pulses, and zeros are sent as spaces, i.e., no pulse.
  • Page 12 Table 2: DTE data rate settings SW-4 SW-5 SW-6 SW-7 SW-8 Speed 64 kbps 128 kbps 192 kbps 256 kbps 320 kbps 384 kbps 448 kbps 512 kbps 576 kbps 640 kbps 704 kbps 768 kbps 832 kbps 896 kbps 960 kbps 1024 kbps 1088 kbps...
  • Page 13: Switches S2-1 Through S2-8

    Table 3: Switch set 2 summary table Position Function Factory Default Selected Option S2-1 CAS MF Disabled S2-2 CRC-4 multiframe Disabled S2-3 RDL Type V.54 S2-4 RDL Response Disabled S2-5 TM from DTE Disabled S2-6 Front Panel Switch Enabled S2-7 NMS/VT-100 Switch S2-8...
  • Page 14: Switch S2-3: Remote Digital Loopback Type

    Switch S2-3: Remote Digital Loopback Type The user can set this switch to select the type of remote loop that will be initiated by the Model 2701. If set to V.54, the Model 2701 will initiate a V.54 loop when Remote Loop is selected by the front panel switches. If set to CSU, the Model 2701 will initiate a CSU loop when Remote Loop is selected by the front panel switches.
  • Page 15: Switch S2-6: Front Panel Switches

    Switch S2-6: Front Panel Switches As the front panel switches may be inadvertently toggled, or in the event that the end-user may not need to use the switches, the installer may dis- able the front panel switches. Set switch S2-6 to determine whether the front-panel toggle switches are enabled or disabled.
  • Page 16: Hardware Reset

    this mode). Switch S3 selects control and management mode for the Model 2701RC. Table 4: DIP switch S3 settings S3-1 to S3-8 Management selection All Off DIP switch control (factory default) All On Hardware reset Hardware reset. The Model 2701RC is set at the factory for DIP switch control.
  • Page 17: Setting The Card Address

    Figure 3. Sample DIP switch settings Setting the card address. Table 5 and Figure 3 show examples of how to set a card address using switches S3-1 through S3-8. The addresses are listed in their hexadecimal (hex) and corresponding decimal values.
  • Page 18: Dce/Dte Selector (X.21 Version Only)

    DTE arrows pointing toward the front panel. 3.6 CONFIGURING THE REAR INTERFACE CARD The Model 2701RC Series has five interface card options: the Model 1001RCM12548C (DB-25/RJ-48C), the Model 1001RCM13448C (M/34/ RJ-48C), the Model 1001RCM11548C (DB-15/RJ-48C), the Model...
  • Page 19 RJ-48C Figure 5. Model 2701RC Series interface card options Note The 2701RC Series function card is paired with a specially designed rear card and must not be swapped with other Patton rear cards. Prior to installation, you will need to examine the rear card you have selected and make sure it is properly configured for your application.
  • Page 20: Model 1001Rcm12548C Strap Settings

    Model 1001RCM12548C Strap Settings Figure 7 shows strap locations for the Model 1001RCM12548C (DB-25) rear cards. These straps determine various grounding characteristics for the terminal interface and twisted pair lines. JB3 and JB4 are user con- figurable. Figure 7. 1001RCM125XX strap locations. Table 7 provides an overview of interface strap functions for the rear interface cards.
  • Page 21: Sgnd & Frgnd (Jb4)

    DTE Shield (DB-25 Pin 1) & FRGND (JB3). In the connected position, this strap links DB-25 pin 1 & frame ground. In the open position, pin 1 is disconnected from frame ground (see Table 8) Table 8: JB3 strap settings Position Description 1 &...
  • Page 22: Dte Shield (Db-25 Pin 1) & Frgnd (Jb3)

    Model 1001RCM13448C Strap Settings Figure 8 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 8. 1001RCM13448C strap locations. Table 10 provides an overview of interface strap functions for the rear interface cards.
  • Page 23: 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 11). Table 11: JB3 strap settings Position Description 1 &...
  • Page 24: Dte Shield (Db-15 Pin 1) & Frgnd (Jb3)

    Figure 9. 1001RCM11548C strap locations. Table 13 provides an overview of interface strap functions for the rear interface cards. Following the table overview are detailed descriptions of each strap’s function. Table 13: Interface Card Strap Summary Strap Function Position 1&2 Position 2&3 DTE Shield (Pin1) &...
  • Page 25: Model 1001Rcm11575 Strap Settings

    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 15). Table 15: JB4 strap settings Position Description 1 &...
  • Page 26: Vt-100 Software Configuration

    Table 16: Interface Card Strap Summary Strap Function Position 1&2 Position 2&3 DTE Shield (Pin1) & FRGND Connected* Open FRGND & SGND (Pin 8) Connected* Open * Indicates default setting 3.7 VT-100 SOFTWARE CONFIGURATION This section describes the VT-100 configuration using a 1001CC. For information on configuration using SNMP through the 1001MC, please refer to the 1001MC user manual.
  • Page 27 4. Here is an example of a terminal emulator setup session. In normal font are the various parameter types. In bold type are the values that should be used for best results. Your terminal program’s setup screen may differ from this one: 5.
  • Page 28 The password prompt will be displayed as shown below. Note The password is case sensitive. Type the password and press <Enter>. The factory default password for the unit is: patton Note If the entry is incorrect, the password screen will clear and prompt you again for the correct password.
  • Page 29: Introduction To Main Menu

    Introduction to Main Menu After entering the password, you may access all of the system’s func- tions and parameters. The Main Menu looks like this: 1. To make a selection, key the highlighted letter that corresponds to a menu selection. 2.
  • Page 30: System Configuration

    a unique name and password. Also, you can reset the unit to its default settings without the manual. It also has a Service Information screen in case you need technical assistance from Patton. Save Changes. Once you have configured the unit to your satisfac- tion, you can save the changes permanently by executing the Save Changes command.
  • Page 31 G.704: G.704 reserves TS0 for signaling and frame alignment. Maxi- mum data rate depends on whether CAS MF is enabled or not. Line Coding: HDB3 (default) Options: AMI, HDB3 HDB3: In this line coding, the transmitter substitutes a deliberate bipolar violation when excessive zeros in the data stream are detected.
  • Page 32 Line Build Out: 120 ohm (default) Options: 120 ohm, 75 ohm 120 ohm: Use with 120 ohm RJ-48C connector. 75 ohm: Use with the 1001RCM11575 rear card. (Dual BNC con- nectors) CRC-4 Setting: Disabled (default) Options: Enabled, Disabled CRC-4 Multiframe: CRC-4 Multiframe uses TS0 to carry CRC-4 information.
  • Page 33 few seconds to complete. When V.54 Loopback is disabled, the unit will not be able to send or respond to V.54 loopback commands. The duration of the loopback is limited by the loopback timeout setting. While V.54 is being activated, user data is overwritten. Default Config Source: Switch (default) Options: EEPROM, Switch The Model 2701RC can be initialized via the configuration in the on-...
  • Page 34 DS0 Channel Configuration Menu [Bandwidth/# Channels = 2,048k/na] (default). The Channel Configuration Menu has a sub-menu that looks like this: 2701RC You may configure the Model 2701RC to operate with any combina- tion of active and inactive DS0 channels in this screen. When you execute the Save Changes command, the selected settings will be saved to permanent memory, and the system will be updated to operate with the new channel settings.
  • Page 35: System Diagnostics

    Front Panel Switches: enabled (default) Options: enabled, disabled As the front panel switches may be inadvertently toggled, or in the event that the end-user may not need to use the switches, the installer may disable the front panel switches. Set switch S2-6 to determine whether the front-panel toggle switches are enabled or disabled.
  • Page 36 The System Diagnostics/Statistics options and functions are described below. Local Loop Idle (default) The Local Loop is a bi-lateral loopback in which the data from the local DTE and the data from the remote unit are looped back to their respective sources (See section 5.3, “Bit error rate (V.52) diagnos- tics”...
  • Page 37 The Model 2701RC has successfully negotiated the Remote Loopback test and is in control of the remote unit. You may send a test pattern at this point by press- ing: d <spacebar> TxTr The Model 2701RC is sending a Terminate Loopback message to the remote unit.
  • Page 38: Ni Status

    switches. If set to CSU, the Model 2701 will initiate a CSU loop when Remote Loop is selected by the front panel switches. S2-3 RDL Type Initiate a V.54 RDL loop when selected Initiate a CSU loopback when selected Test Pattern: Idle (default) Options: Idle or Sending To send a pattern, press the ‘c’...
  • Page 39: Current Dip Switch Settings

    Current DIP Switch Settings. The switch settings are displayed here to facilitate troubleshooting your unit without opening up the unit first. Unit Options The Unit Options screen looks like this (factory default): Header Line 1 and Header Line 2 Headers 1 and 2 are provided for easy identification of your unit after installation.
  • Page 40 Loop Timeout The Loop Timeout 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...
  • Page 41 Set to Default Configuration You may set the Model 2701RC to its factory default configuration, except for the header lines and the password, by executing the Set to Default Configuration command. Service Information If you need to contact us for help, you can view the Service Informa- tion screen.
  • Page 42: Installation

    4.0 INSTALLATION This section describes the functions of the Model 1001R14 rack chassis, tells how to install front and rear Model 2701RC Series cards into the chassis, and how to connect to the twisted pair interface and the serial interface.
  • Page 43: The Rack Power Supply

    The Rack Power Supply The power supply included in the Model 1001R14 rack uses the same mid-plane architecture as the modem cards. The front card of the power supply slides in from the front, and the rear card slides in from the rear. They plug into one another in the middle of the rack.
  • Page 44 No hay componentes a los que el usuario pueda darles servicio en la sección de la fuente de aliment- ación del modelo 1001R14 rack. Los cambios de ajuste del voltaje y reemplazo de fusibles deberán ser realizados solamente por personal de servicio cualificado.
  • Page 45: Powering Up Your 1001R14 Rack

    Powering up your 1001R14 rack To avoid a shock hazard, connect the chassis ground prior to connecting power or module I/O cables. The distance between the equipment rack and ground must not exceed the distance specified in the electri- cal code applicable to the location where the rack is WARNING installed.
  • Page 46: Grounding The Model 1001Rp Series

    Note Please refer to the Model 1001R14 Series User Manual AC and DC Rack Mount Power Supplies for fuse and power card replacement information. Grounding the Model 1001RP Series 1. Assemble a ground wire using #6 AWG wire with green-colored insulation and two ring terminals.
  • Page 47: Mise A Terre Le Model 1001Rp Series

    Mise a terre le Model 1001RP Series 1. Connecter le cable terre #6AWG couleur verte isole avec 2 anneaux terminals. faite le cable long pour atteindre une des sources suiva- ntes: Les piquets de terre de l'immeuble qui sont situe en general a l'entree principale de l'immeuble Au tuyau de l'extincteur automatique, ou celui de l'eau froide La structure metallique de l'immeuble...
  • Page 48: So Erden Sie Das Model 1001Rp Series

    So erden Sie das Model 1001RP Series 1. Konfigurieren Sie ein Erdungskabel mittels #6 AWG Kabel mit grün- farbener Isolation und Kabelschuh an beiden Enden. Machen Sie das Kabel lang genug um eine der beiden folgenden Erdung- squellen zu erreichen: Der Staberder des Gebäudes Eine Leitung des Sprinkler Systems oder eine Kaltwasserlei- tung...
  • Page 49: Conección A Tierra Del Model 1001Rp Series

    Conección a tierra del Model 1001RP Series 1. Prepare un alambre para coneccion a tierra de grosor AWG #6 con aislamiento color verde y dos terminales metálicas de anillo. Corte el alambre lo suficientemente largo para alcanzar una de las fuentes de tierra siguientes: La barra de tierra del edificio (situada generalmente en la entrada principal de servicio del sitio)
  • Page 50: Installing The Model 2701Rc Into The Chassis

    4.1 INSTALLING THE MODEL 2701RC INTO THE CHASSIS The Model 2701RC 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 2701RC into the rack chassis: 1.
  • Page 51: Connecting The E1 Interface

    4.4 CONNECTING THE E1 INTERFACE The E1cables shall be a minimum of 26 AWG, accept- able for external use, and be rated for the application with respect to voltage, current, anticipated tempera- ture, flammability, and mechanical serviceability. CAUTION Les cables E1 doivent etre de section minimum 26AWG, accepte pour utilisation externe, et quote pour des applications avec respect du voltage, cou- rant, temperature anticipe, et service mechanique.
  • Page 52: Connecting Dual-Coax Bnc (75 Ohm)

    Note If the NetLink-E1™ 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. See Appendix D on page 63 for interface pin assignments. 4.5 CONNECTING DUAL-COAX BNC (75 OHM) In addition to the 120 ohm twisted pair connection, the Model 2701RC, when used with the 1001RCM11575 rear card, is equipped with dual female BNCs (TX and RX) for connection to a 75 ohm dual coax G.703...
  • Page 53: Operation

    5.0 OPERATION Once the NetLink-E1™ is installed and configured properly it is ready to place into operation. This section describes the function of the LED indi- cators, and the use of the loopback and pattern test modes. 5.1 LED DESCRIPTIONS The NetLink-E1™...
  • Page 54: Loop (V.54 & Telco) Diagnostics

    When the unit sends a one, the TXD LED is green. When it sends a zero, the TXD LED is yellow. Moreover, the TXD LED is active only in active DS0 channels. In inactive channels, the TXD LED is off. When the unit receives a one, the RXD LED is green.
  • Page 55: Operating Local Loopback (Ll)

    Operating Local Loopback (LL) The Local Loopback (LL) test checks the operation of the local NetLink- E1™, and is performed separately on each unit. Any data sent to the local NetLink-E1™ in this test mode will be echoed (returned) back to the user device (i.e., characters typed on the keyboard of a terminal will appear on the terminal screen).
  • Page 56: Operating Remote Digital Loopback (Rl)

    Operating Remote Digital Loopback (RL) The Remote Digital Loopback (RL) test checks the performance of both the local and remote NetLink-E1™, as well as the communication link between them. Any characters sent to the remote NetLink-E1™ 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 termi- nal screen after having been passed to the remote NetLink-E1™...
  • Page 57: Csu Loop

    — Activate RL from the HTTP browser screens when using the 1001MC card — Activate the “RL” signal on the DTE. If you are not sure which lead is the “RL” signal, please refer to section Appendix D, “E1 Interface Pin Assignment” on page 63. —...
  • Page 58 2. Activate the test pattern. This may be done in one of following ways: Test Pattern from the System Diagnostics/Statistics — Enter menu and toggle the <Spacebar> until the desired test pattern appears. Test One of two result codes will appear to the right of the Pattern listing: OK—Indicates that the received test pattern is error-free.
  • Page 59: Specifications

    APPENDIX A SPECIFICATIONS A.1 NETWORK DATA RATE 2.048 Mbps A.2 NETWORK CONNECTOR RJ-48C or dual BNC A.3 NOMINAL IMPEDANCE 120 ohm (75 ohm available when using Patton Model 1001RCM11575 rear card) A.4 DTE INTERFACE V.35 (DCE Orientation) X.21 (DCE or DTE orientation), RS-530, 10Base- T, Ethernet A.5 LINE CODING Selectable AMI or HDB3...
  • Page 60: Time Slot Rate

    A.11 TIME SLOT RATE 64 kbps A.12 DS0 START POSITION Arbitrary (when using VT-100 or SNMP management). A.13 DS0 MAPPING POSITION Contiguous, or Arbitrary (when using VT-100 or SNMP management). A.14 DIAGNOSTICS V.54 Loopback; V.52 Patterns: 511, 2047 A.15 INDICATORS Power, Transmit Data, Receive Data, Alarm, Loss of Sync, Test Mode, Error A.16 CONFIGURATION...
  • Page 61: Cable Recommendations

    24 AWG 83nf/mi or 15.72 pf/ft. 0.05165 ohms/ft. To gain optimum performance from the Model 2701RC Series, please keep the following guidelines in mind: • Always use twisted-pair wire—this is not an option. • Use twisted pair wire with a capacitance of 20pf/ft or less.
  • Page 62: Factory Replacement Parts And Accessories

    APPENDIX C FACTORY REPLACEMENT PARTS AND ACCESSORIES Patton Model # Description 2701RC/D/V E1/FE1 CSU/DSU Rack Card, X.21 Interface with DB15FS/RJ48C rear card 2701RC/B/B E1/FE1 CSU/DSU Rack Card, RS530 Interface with DB25F/RJ48C Rear Card 2701RC/A/I E1/FE1 CSU/DSU Rack Card, V.35 Interface with M/34F/RJ48C Rear Card 1001RPEM-RAC 90/260V Rear Power Entry Module...
  • Page 63: E1 Interface Pin Assignment

    APPENDIX D E1 INTERFACE PIN ASSIGNMENT The E1 cables shall be a minimum of 26 AWG, accept- able for external use, and be rated for the application with respect to voltage, current, anticipated tempera- ture, flammability, and mechanical serviceability. CAUTION les cables E1 doivent etre au moinimum 26AWG, accepte pour utilisation externe, et quote pour des applications avec respet au voltage, courant, temper-...
  • Page 64: Interface Pin Assignment

    APPENDIX E V.35 INTERFACE PIN ASSIGNMENT M/34 Connector, Terminal Interface Pin # Signal GND (Earth Ground/Shield) SGND (Signal Ground) CTS (DCE Source) DSR (DCE Source, Always On) CD (DCE Source) LL (Local Loop, DTE Source) TM (Test Mode Indicator, DCE Source) RL (Remote Loop, DTE Source) TD (Transmit Data +, DTE Source) RD (Receive Data +, DCE Source)
  • Page 65: Eia-530 Interface Pin Assignment

    APPENDIX F EIA-530 INTERFACE PIN ASSIGNMENT DB-25 Female Connector, Terminal Interface Pin # Signal FG (FrameGround) TD (Transmit Data-A, DTE Source) RD (Receive Data-A, DCE Source) RTS (Request to Send-A, DTE Source) CTS (Clear to Send-A, DCE Source) DSR (Data Set Ready-A, DCE Source) SGND (Signal Ground) CD (Carrier Detect-A, DCE Source) RC/ (Receiver Clock-B, DCE Source)
  • Page 66: Interface Pin Assignment

    APPENDIX G X.21 INTERFACE PIN ASSIGNMENT DB-15 Female Connector (DTE /DCE Configuration) Table 17: 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)
  • Page 67 Notes _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________...
  • Page 68 Notes _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ Copyright © 2009-2011. Patton Electronics Company All Rights Reserved.

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