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Manual Patton electronic 3120

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  • Patton electronic 3120 - page 1

    Model 3120 Remote Access Ser ver (RAS) Getting Star ted Guide Sales Office: +1 (301) 975-1000 T echnical Support: +1 (301) 975-1007 E-mail: support@patton.com WWW : www .patton.com Document Number: 107061U Rev . D Part Number: 07MD3120-GS Revised: April 29, 2003 ...

  • Patton electronic 3120 - page 2

    P atton Electronics Company , Inc. 7622 Rickenbacker Drive Gaithersburg, MD 20879 USA tel: +1 (301) 975-1000 fax: +1 (301) 869-9293 support: +1 (301) 975-1007 web: www .patton.com e-mail: support@patton.com Copyright © 2001 & 2002, P atton Electronics Company . All rights reserved. The information in this document is subject to change without ...

  • Patton electronic 3120 - page 3

    1 Contents About this guide .....................................................................................................................................................5 Audience................................................................................................................................................................. 5 ...

  • Patton electronic 3120 - page 4

    Contents Model 3120 RAS Getting Started Guide 2 Connecting the Ethernet ports ........................................................................................................................23 Connecting the 10/100Base-T Ethernet ports to an Ethernet switch or hub .............................................24 Connecting a 10/100Base-T Eth ...

  • Patton electronic 3120 - page 5

    3 Model 3120 RAS Getting Started Guide Contents Exporting the current RAS configuration ..................................................................................................61 Removing the defective RAS .....................................................................................................................62 Installing the ...

  • Patton electronic 3120 - page 6

    Contents Model 3120 RAS Getting Started Guide 4 ...

  • Patton electronic 3120 - page 7

    5 About this guide This guide describes installing and configuring a P atton Electronics M odel 3120 Remote A ccess Server (RAS). By the time y ou are finished with this guide, your RAS will be r eceiving calls and transferring data. The instructions in this guide are based on the following assumptions: • The RAS will connect to a T1, E1, or PR ...

  • Patton electronic 3120 - page 8

    About this guide Model 3120 RAS Getting Started Guide 6 Precautions N otes and cautions, which have the follo wing meanings, are used throughout this guide to help you become aware of potential RAS problems: Note Calls attention to important information. T ypographical conventions used in this document This section describes the typographical conve ...

  • Patton electronic 3120 - page 9

    7 Model 3120 RAS Getting Started Guide About this guide Mouse conventions The following conventions ar e used when describing mouse actions: T able 2. Mouse conventions Convention Meaning Left mouse button This button refers to the primar y or leftmost mouse button (unless you have changed the default configuration). Right mouse button This button ...

  • Patton electronic 3120 - page 10

    About this guide Model 3120 RAS Getting Started Guide 8 ...

  • Patton electronic 3120 - page 11

    9 Compliance Information Radio and TV Interference The M odel 3120 generates and uses radio frequency energy , and if not installed and used properly—that is, in strict accordance with the manufactur er's instructions—may cause interference to radio and television recep- tion. The Model 3120 has been tested and found to comply with the lim ...

  • Patton electronic 3120 - page 12

    Compliance Information Model 3120 RAS Getting Started Guide 10 FCC rules and regulation CFR 47 68.218(b)(6), you must notify the telephone company prior to disconnec- tion. The following information may be required when applying to y our local telephone company for leased line facilities. The U niversal Service Order Code (USOC) is RJ48. The F acil ...

  • Patton electronic 3120 - page 13

    11 Chapter 1 Introduction Chapter contents Model 3120 Remote Access Server overview ..........................................................................................................12 Hardware overview ........................................................................................................................................... ...

  • Patton electronic 3120 - page 14

    1 • Introduction Model 3120 RAS Getting Started Guide 12 Model 3120 Remote Access Server overview Model 3120 Remote Access Server over view The M odel 3120 is a central site remote access server with integrated modems which terminate dial-up analog and digital users. The Model 3120 RAS combines 96 or 120 analog and digital modems, RAS software, t ...

  • Patton electronic 3120 - page 15

    Hardware overview 13 Model 3120 RAS Getting Started Guide 1 • Introduction Hardware overview The M odel 3120 RAS is a fully integrated remote access server for central site concentration of analog and dig- ital modem calls. The RAS (see figure 2) comprises a 1U-high 17-inch wide chassis that contains a mother- board and two r emovable dual-r edu ...

  • Patton electronic 3120 - page 16

    1 • Introduction Model 3120 RAS Getting Started Guide 14 Hardware overview Signaling Robbed-bit, R1, R2, Q.921/Q.931 Modems U p to 96/120 V .92, V .90, K56F lex, V .34+, ISDN B-channel digital calls (additional ports/functionality can be added by installing optional PMC expansion modules), or 64 kbps and 56 kbps DO VBS ( data over v oice bearer s ...

  • Patton electronic 3120 - page 17

    Hardware overview 15 Model 3120 RAS Getting Started Guide 1 • Introduction Physical dimensions W eight: 8.94 lbs (20.12 kg) Refer to figure 3 for height, width, and depth dimensions. Figure 3. Model 3120 RAS chassis physical dimensions Security – Internal database of o ver 111 static users – RADIUS Client supporting dual Authorization and Ac ...

  • Patton electronic 3120 - page 18

    1 • Introduction Model 3120 RAS Getting Started Guide 16 Hardware overview – SNMP version 1 configuration management – S upport for MIB-II (RFC-1213), DS1 MIB (RFC-1406), RIPv2 MIB (RFC 1389), Ethernet MIB (RFC- 1643), F rame Relay DTE MIB (RFC-1315) and P atton ’ s enterprise MIB (1768) – System logging to configuration port, non-volat ...

  • Patton electronic 3120 - page 19

    Approvals 17 Model 3120 RAS Getting Started Guide 1 • Introduction – SYSTEM: G reen if the RAS is operating normally . – ETHERNET A: G reen if link status is nominal for E thernet port A. – ETHERNET B: G reen if link status is nominal for E thernet port B. – CALLS ACT : Green to indicate call activity on the M odel 3120. – W AN ST A TUS ...

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    1 • Introduction Model 3120 RAS Getting Started Guide 18 Software overview Software overview The P atton Model 3120 supports all common remote access services as well as integrated routing and forward- ing (see table 3). Authentication and networ k management offer control and detailed monitoring from any web bro wser . From the PSTN, the M odel ...

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    19 Chapter 2 Hardware installation Chapter contents Introduction ..........................................................................................................................................................20 Unpacking the Model 3120 RAS ................................................................................................... ...

  • Patton electronic 3120 - page 22

    2 • Hardware installation Model 3120 RAS Getting Started Guide 20 Introduction Introduction This chapter contains the following procedur es for installing the M odel 3120 RAS: – “U npacking the Model 3120 RAS”—lists the contents of the RAS shipping container – “RAS chassis installation ”—describes installing the RAS on a flat sur ...

  • Patton electronic 3120 - page 23

    Cable installation 21 Model 3120 RAS Getting Started Guide 2 • Hardware installation 5. Secure the RAS in position with the mounting scr ews. Cable installation This section describes installing the power , ground, and network interface cables. Installing the power cables—AC power supply This section describes installing the female end of the p ...

  • Patton electronic 3120 - page 24

    2 • Hardware installation Model 3120 RAS Getting Started Guide 22 Cable installation 2. Rotate the po wer cable retainer clip so it secur es the power cable plug in the IEC-320 connector as sho wn in figure 6. Figure 6. Power cable retainer clip 3. Repeat steps 1 and 2 to install the remaining po wer cable. Installing the power cables—DC Power ...

  • Patton electronic 3120 - page 25

    Cable installation 23 Model 3120 RAS Getting Started Guide 2 • Hardware installation 3. Insert the stripped end of the positive lead into the “+DC input ” of the terminal block. T ighten the screw until the power lead is firmly fastened. R epeat the procedure for the negativ e lead, using the “-DC input” of the terminal block. Make sure ...

  • Patton electronic 3120 - page 26

    2 • Hardware installation Model 3120 RAS Getting Started Guide 24 Cable installation Connecting the 10/100Base-T Ethernet por ts to an Ethernet switch or hub Each 10/100Base-T Ethernet port (see figure 8 on page 23) is designed to connect to an E thernet switch or hub. Connect a straight-through CA T -5 cable (one wired as shown in figure 9) be ...

  • Patton electronic 3120 - page 27

    Completing the hardware installation 25 Model 3120 RAS Getting Started Guide 2 • Hardware installation Connecting to the T1/E1/PRI W AN ports An active T1/E1/PRI is not necessar y to configur e the RAS. H owev er , an active T1/E1/PRI connection is required to r eceive or make calls. The factory-set default configuration of the access ser ver h ...

  • Patton electronic 3120 - page 28

    2 • Hardware installation Model 3120 RAS Getting Started Guide 26 Completing the hardware installation 2. Connect the male end of the power cor d to an appropriate po wer outlet. 3. V erify that the green PO WER LED is lit. If the PO WER LED is flashing gr een , refer to Chapter 5, “T rou- bleshooting and maintenance ”. Hardwar e installatio ...

  • Patton electronic 3120 - page 29

    27 Chapter 3 Configuring the RAS for operation Chapter contents Introduction ..........................................................................................................................................................28 Configuration prerequisites ....................................................................................... ...

  • Patton electronic 3120 - page 30

    3 • Configuring the RAS for operation Model 3120 RAS Getting Started Guide 28 Introduction Introduction This chapter contains the following procedur es for configuring the M odel 3120 Remote A ccess Server for operation: • “Configuration prerequisites ”—lists the items you need to have on hand before configuring the RAS. • “P repar ...

  • Patton electronic 3120 - page 31

    Preparing the RAS for configuration 29 Model 3120 RAS Getting Started Guide 3 • Configuring the RAS for operation – 8 bits – N o P arity – 1 S top bit – N o flow control 3. Set up H yperT erminal™ as follows: – O pen a H yperT erminal session. – E nter a name for this connection. – Click on the Connect using: pop-up menu and choo ...

  • Patton electronic 3120 - page 32

    3 • Configuring the RAS for operation Model 3120 RAS Getting Started Guide 30 Preparing the RAS for configuration Figure 14. COM properties Figure 15. T er minal keys configuration – Configur e the Settings for F unction, arro w and ctrl keys act as to T er minal keys as sho wn in figure 15. 4. P ress <RETURN> to display the login wind ...

  • Patton electronic 3120 - page 33

    Preparing the RAS for configuration 31 Model 3120 RAS Getting Started Guide 3 • Configuring the RAS for operation Figure 16. Login window 5. T ype superuser as the default username and password, then press <RETURN>. The T op Level Man- agement window displays (see figure 17). Figure 17. VT -100 T op Level Management window 6. Select option ...

  • Patton electronic 3120 - page 34

    3 • Configuring the RAS for operation Model 3120 RAS Getting Started Guide 32 Configuring the RAS with a Web browser 16. U se the left arro w key to return to the top level management page. 17. Select a H ome . 18. Select 1 S tor eConfig to save your IP address and netmask. The RAS is now prepar ed for configuration using a W eb browser . Note ...

  • Patton electronic 3120 - page 35

    Configuring the RAS with a Web browser 33 Model 3120 RAS Getting Started Guide 3 • Configuring the RAS for operation 3. When the username and password windo w displays, type superuser as the username and passwor d, then press <RETURN>. The Administration P ages Home windo w appears (see figure 18). Figure 18. Home page ...

  • Patton electronic 3120 - page 36

    3 • Configuring the RAS for operation Model 3120 RAS Getting Started Guide 34 Configuring the RAS with a Web browser Home page overview The HOME window is divided into two panes : the Configuration Menu pane and the configuration/informa- tion pane (see figure 19). The Configuration Menu contains the links to the various RAS subsystems, while ...

  • Patton electronic 3120 - page 37

    Configuring the RAS with a Web browser 35 Model 3120 RAS Getting Started Guide 3 • Configuring the RAS for operation F rom the Home page, the following actions can be performed: • Recor d C urrent Configuration —clicking on this button (figure 20) causes the curr ent configuration to be stored in FLASH memory . Any changes made to the RAS ...

  • Patton electronic 3120 - page 38

    3 • Configuring the RAS for operation Model 3120 RAS Getting Started Guide 36 Configuring the RAS with a Web browser Configuring simple authentication The following sections describe two methods for configuring simple authentication to test the setup . No V alidation A N o V alidation authentication setting means that the user will be able to l ...

  • Patton electronic 3120 - page 39

    Configuring the RAS with a Web browser 37 Model 3120 RAS Getting Started Guide 3 • Configuring the RAS for operation Figure 22. Authentication Configuration window 2. Click on Modify . The Authentication Configuration window appears (see figur e 22). 3. Change V alidation to noV alidation(0) . 4. Click on the Submit Query button. A Static User ...

  • Patton electronic 3120 - page 40

    3 • Configuring the RAS for operation Model 3120 RAS Getting Started Guide 38 Configuring the RAS with a Web browser 3. Add the desired username and passwor d. 4. Click on the Submit Query button. 5. Click on Modify . The Authentication Configuration window appears (see figur e 22 on page 37). 6. Change V alidation to StaticUsers(1) . 7. Click ...

  • Patton electronic 3120 - page 41

    Configuring the RAS with a Web browser 39 Model 3120 RAS Getting Started Guide 3 • Configuring the RAS for operation 2. Click on Modify . The Modify D ial-In windo w appears (see figure 25). Figure 25. Modify Dial-In window , Login section 3. The IP address pool contains the IP addresses that ar e assigned dynamically to the dial-in connections. ...

  • Patton electronic 3120 - page 42

    3 • Configuring the RAS for operation Model 3120 RAS Getting Started Guide 40 Configuring the RAS with a Web browser Figure 26. Modify Dial-In window , Domain Name Ser ver section 6. Enter in the IP Addr ess of the primary and secondar y domain name servers (DNS). The DNS enables users to find locations on the Internet. 7. Click on Submit Query ...

  • Patton electronic 3120 - page 43

    Configuring the RAS with a Web browser 41 Model 3120 RAS Getting Started Guide 3 • Configuring the RAS for operation Configuring line settings and signaling for E1 1. Select T1/E1 Link on the Configuration Menu . The T1/E1 Link Activity window appears (see figure 28). Figure 28. T1/E1 Link Activity window 2. Link: 1 corresponds to Line 1 on th ...

  • Patton electronic 3120 - page 44

    3 • Configuring the RAS for operation Model 3120 RAS Getting Started Guide 42 Configuring the RAS with a Web browser Configuring the line settings 1. Click on the Line T ype pop-up menu (see figure 29 on page 41) and choose from the following options: – F or an E1/PRI line your options will be either dsx1E1(4) or dsx1E1-CR C(5) – F or an E1 ...

  • Patton electronic 3120 - page 45

    Configuring the RAS with a Web browser 43 Model 3120 RAS Getting Started Guide 3 • Configuring the RAS for operation Figure 31. W AN Circuit Configuration window , signaling Settings section Setting the line signaling for an E1/PRI (ISDN) line Do the follo wing: 1. Scroll down the W AN Circuit Configuration window , until the Signaling Settings ...

  • Patton electronic 3120 - page 46

    3 • Configuring the RAS for operation Model 3120 RAS Getting Started Guide 44 Configuring the RAS with a Web browser Figure 32. MFR V ersion 2 Modify window 5. Click on the Countr y pop-up menu. If your country is not available, select ituS tandard(1). 6. Click on Submit . 7. Scroll down to the Interregister signaling section. 8. T ype the Called ...

  • Patton electronic 3120 - page 47

    Configuring the RAS with a Web browser 45 Model 3120 RAS Getting Started Guide 3 • Configuring the RAS for operation 14. Click on Submit . signaling is now configured for MFC-R2. Note The information entered into the Interr egister Signaling section must match the information the telco provided. I f the information entered is not the same, the R ...

  • Patton electronic 3120 - page 48

    3 • Configuring the RAS for operation Model 3120 RAS Getting Started Guide 46 Configuring the RAS with a Web browser Configuring the line settings 1. Click on the Line T ype pop-up menu (see figure 29 on page 41) and choose from the following options: – dsx1ESF E xtended S uperF rame DS1 – dsx1D4 A T&T D4 format DS1 – F or ISDN PRI se ...

  • Patton electronic 3120 - page 49

    Configuring the RAS with a Web browser 47 Model 3120 RAS Getting Started Guide 3 • Configuring the RAS for operation Signaling settings for each W AN port: Example 2 The remote access server hosts 1 NF AS group containing 3 PRIs. Signaling setting for each W AN port: Setting the line signaling for a robbed-bit T1 line Do the follo wing: 1. Scroll ...

  • Patton electronic 3120 - page 50

    3 • Configuring the RAS for operation Model 3120 RAS Getting Started Guide 48 Saving your configuration Channel assignment This section describes configuring the RAS so it will know which channels are activ e. Do the follo wing: 1. Select T1/E1 Link on the Configuration Menu . The T1/E1 Link Activity windo w appears (see figure 28 on page 41). ...

  • Patton electronic 3120 - page 51

    Saving your configuration 49 Model 3120 RAS Getting Started Guide 3 • Configuring the RAS for operation 4. T o impor t or export a configuration, click on Impor t/Export under the Configuration Menu to display the Import/Expor t main window (see figur e 34). Figure 34. Import/Expor t main window 5. T o expor t the flash configuration, click ...

  • Patton electronic 3120 - page 52

    3 • Configuring the RAS for operation Model 3120 RAS Getting Started Guide 50 Completing the installation T o save the displayed data as a text file, select the Sa ve option on your bro wser (see figure 36). F or example, under N etscape, select File > Save As . A dialog box will display enabling you to sav e the contents of the export param ...

  • Patton electronic 3120 - page 53

    Completing the installation 51 Model 3120 RAS Getting Started Guide 3 • Configuring the RAS for operation Note If the RAS does not respond as described, the most likely cause is that the RAS default settings are not compatible with the T1/E1 line. If this is the case, use the RS-232 CONFIG port to correct the RAS set- tings. Y ou will have to exa ...

  • Patton electronic 3120 - page 54

    3 • Configuring the RAS for operation Model 3120 RAS Getting Started Guide 52 Completing the installation ...

  • Patton electronic 3120 - page 55

    53 Chapter 4 Operation and shutdown Chapter contents Introduction ..........................................................................................................................................................54 Activating the RAS ............................................................................................................ ...

  • Patton electronic 3120 - page 56

    4 • Operation and shutdown Model 3120 RAS Getting Started Guide 54 Introduction Introduction This chapter describes how to start or power-do wn the RAS. Activating the RAS Once the RAS has been installed, no operator action is requir ed under normal conditions; the RAS is designed for unattended operation. The RAS does not have a power switch. Wh ...

  • Patton electronic 3120 - page 57

    55 Chapter 5 T roubleshooting and maintenance Chapter contents Introduction ..........................................................................................................................................................56 Fault analysis ...................................................................................................... ...

  • Patton electronic 3120 - page 58

    5 • Troubleshooting and maintenance Model 3120 RAS Getting Started Guide 56 Introduction Introduction This chapter describes troubleshooting and fault analysis that can be performed by the operator . If you require more help , refer to Chapter 6, “Contacting P atton for assistance ”. Refer to table 4 for a list of common symp- toms and sugges ...

  • Patton electronic 3120 - page 59

    Fault analysis 57 Model 3120 RAS Getting Started Guide 5 • Troubleshooting and maintenance Fault analysis The following procedur es outline steps you should follow when tr oubleshooting a RAS malfunction. 1. If possible, talk to the person who filed the trouble complaint and determine the operational symptoms. Recor d the symptoms on the appropr ...

  • Patton electronic 3120 - page 60

    5 • Troubleshooting and maintenance Model 3120 RAS Getting Started Guide 58 Fault analysis ETHERNET Front panel Green Off • A valid link has not been detected. • V erify that the cable is plugged into the hub, switch, or workstation and the RAS. • V erify that the hub, switch, or workstation is powered on. • Replace the cable. If the prob ...

  • Patton electronic 3120 - page 61

    Periodic maintenance 59 Model 3120 RAS Getting Started Guide 5 • Troubleshooting and maintenance Periodic maintenance U se a lint-free cloth to clean dust off the RAS chassis as needed. Clean the air filter every 6 to 12 months (depending on the air quality in the site where the RAS is installed). Refer to “Cleaning the air filter ”. Cleani ...

  • Patton electronic 3120 - page 62

    5 • Troubleshooting and maintenance Model 3120 RAS Getting Started Guide 60 Maintenance – I mmerse in warm, soapy water—Where stubborn air-borne dirt is present, the filter can be dipped in a solution of warm water and mild detergent. After cleaning, rinse the filter in clear water , then let it dr y completely before returning it to servic ...

  • Patton electronic 3120 - page 63

    Maintenance 61 Model 3120 RAS Getting Started Guide 5 • Troubleshooting and maintenance Replacing the RAS If you isolate a problem to the a RAS component, the entir e RAS must be replaced as follo ws: Exporting the current RAS configuration The Import/Export function enables you to make a backup (or expor t ) copy of your access server ’ s con ...

  • Patton electronic 3120 - page 64

    5 • Troubleshooting and maintenance Model 3120 RAS Getting Started Guide 62 Maintenance Figure 40. T ypical access ser ver flash memor y configuration data 4. T o save the displayed data as a text file, select the Sa ve option on your bro wser (see figure 41). F or exam- ple, under N etscape, select File > Save As . A dialog box will displ ...

  • Patton electronic 3120 - page 65

    Maintenance 63 Model 3120 RAS Getting Started Guide 5 • Troubleshooting and maintenance 2. U nplug both male power cable connectors from their outlets. 3. Rotate the po wer cord r etainer clips out of the way , then remove both po wer cables from the malfunction- ing RAS. 4. Disconnect and label the follo wing cables from the malfunctioning RAS: ...

  • Patton electronic 3120 - page 66

    5 • Troubleshooting and maintenance Model 3120 RAS Getting Started Guide 64 Maintenance 2. S tart a new VT -100 terminal session configured with the following characteristics: – D irect connection to COM port – 19.2 kbps – 8 bits – N o P arity – 1 S top bit – N o flow control 3. Set up H yperT erminal™ as follows: – O pen a H yp ...

  • Patton electronic 3120 - page 67

    Maintenance 65 Model 3120 RAS Getting Started Guide 5 • Troubleshooting and maintenance – Configur e the COM port settings as shown in figure 43. Figure 43. COM properties – Configur e the Settings for F unction, arro w and ctrl keys act as to T er minal keys as sho wn in figure 44. Figure 44. T er minal keys configuration ...

  • Patton electronic 3120 - page 68

    5 • Troubleshooting and maintenance Model 3120 RAS Getting Started Guide 66 Maintenance 4. P ress <RETURN> to display the login windo w (see figure 45). Figure 45. Login window 5. T ype superuser as the default username and password, then press <RETURN>. The T op Level Man- agement window displays (see figure 46). Figure 46. VT -100 ...

  • Patton electronic 3120 - page 69

    Maintenance 67 Model 3120 RAS Getting Started Guide 5 • Troubleshooting and maintenance 15. Select e P rimaryIpMask to set the E thernet B IP subnet mask. 16. U se the left arro w key to return to the top level management page. 17. Select a H ome . 18. Select 1 Stor eConfig to save your IP address and netmask. The RAS is now prepared for config ...

  • Patton electronic 3120 - page 70

    5 • Troubleshooting and maintenance Model 3120 RAS Getting Started Guide 68 Maintenance Replacing a power supply M odel 3120 RAS power supplies ar e hot-swappable, so a defective supply can be replaced without deactiv ating the RAS. Do the follo wing to replace a malfunctioning pow er supply: Note Y ou will need a flat-tip screwdriver to perform ...

  • Patton electronic 3120 - page 71

    Maintenance 69 Model 3120 RAS Getting Started Guide 5 • Troubleshooting and maintenance 6. Remo ve the replacement po wer supply from its shipping container . 7. Insert the power supply into the RAS chassis (as sho wn in figure 48) until the locking tabs ar e pressing against the chassis. When that occurs, push do wn on the locking tabs while pr ...

  • Patton electronic 3120 - page 72

    5 • Troubleshooting and maintenance Model 3120 RAS Getting Started Guide 70 Maintenance ...

  • Patton electronic 3120 - page 73

    71 Chapter 6 Contacting Patton for assistance Chapter contents Introduction ..........................................................................................................................................................72 Contact information ................................................................................................. ...

  • Patton electronic 3120 - page 74

    6 • Contacting Patton for assistance Model 3120 RAS Getting Started Guide 72 Introduction Introduction This chapter contains the following information: • “Contact information ”—describes how to contact P A TTON technical support for assistance. • “W arranty Service and Returned Mer chandise Authorizations (RMAs)”—contains informat ...

  • Patton electronic 3120 - page 75

    Warranty Service and Returned Merchandise Authorizations (RMAs) 73 Model 3120 RAS Getting Started Guide 6 • Contacting Patton for assistance Return for credit policy • Less than 30 days: N o Charge. Y our credit will be issued upon receipt and inspection of the equipment. • 30 to 60 days: W e will add a 20% restocking charge (crediting your a ...

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