IMITATIONS OF All claims for breach of the foregoing warranty shall be deemed waived unless notice of such claim is received by Quick Eagle Networks during the applicable warranty period and unless the items claimed to be defective are returned to Quick Eagle Networks within thirty (30) days after such claim.
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[including negligence], strict liability, or otherwise) shall in no event exceed the repair price of the unit from which such cause arises. In no event shall Quick Eagle Networks be liable for incidental, indirect, special or consequential damages resulting from any SUCH CAUSE EVENT WHETHER OR NOT QUICK EAGLE NETWORKS IS AWARE OF THE POSSIBILITY OF SUCH DAMAGES.
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2000 compliant” requirements. In addition, software released in and after 1998 meets the Year 2000 compliance criteria. For more information on Year 2000 compliance, see our web site information at www.quickeagle.com and click on the Year 2000 compliance icon. DL3800E Inverse Multiplexer User’s Guide — July 9, 2001...
The following section is required by the FCC. CAUTION: In accordance with FCC Part 15 section 15.21, changes or modifications made by the buyer that are not expressly approved by Quick Eagle Networks could void the buyer’s authority to operate this equipment. This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules.
Table of Contents Preface Audience Organization Conventions Symbols Typography Quick Eagle Networks Technical Support Returning a Unit Send Us Your Comments Document Change Record Chapter 1, Quick Install Guide Purpose Configuration Equipment Needed Setup Terminal Log On Terminal Configuration Unit Configuration...
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Chapter 4, Terminal Interface Log In/Log Off Terminal Operation Overview General Menu Flow Screen Description Inverse Multiplexer Main Menu Commands Select Local/Remote Alarms and Status Statistics Event History viii DL3800E Inverse Multiplexer User’s Guide — July 9, 2001 4-11 4-15...
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Configuration Unit Configuration DTE Configuration Network Configuration Network Thresholds Save Configuration System Utilities Software Download Software Download Options RAM Software Options Delete Entire Unit Configuration (revert to factory config) Login Configuration SNMP Configuration In-Band SNMP to Remote Save Configuration Tests DTE/Network Loopback Payload Loopback Line Loopback...
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Equipment Return And Repair Running Diagnostic Tests DTE/Network Loopback Test LOCAL Loopback Test Payload Loopback and Line Loopback Tests Possible Sources of Problems Troubleshooting the DL3800E DL3800E Inverse Multiplexer User’s Guide — July 9, 2001 5-12 5-14 5-14 5-15 5-15 5-16...
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Appendix A, Specifications E1 Network Interface External Clock Interface DTE Interface COMM PORT NMS Port (SNMP) Front Panel Diagnostics Power Environmental Physical /Connectors External Alarm Contacts Appendix B, Pinouts Terminal Connection DCE Connectors Channel 1 Data Cable Pin Assignments DB-25 to DC-37 Data Port Cable Pin Assignments Communication Port Pin Assignments RS-449, DC-37 to DB-25 DCE Cable Pin Assignments E1 Network Pin Assignments...
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Index DL3800E Inverse Multiplexer User’s Guide — July 9, 2001...
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List of Figures Figure 1-1 DL3800E Inverse Multiplexer (front panel) Figure 2-1 DL3800E Inverse Multiplexer Figure 2-2 Typical Application for DL3800E Figure 2-3 DL3800E Functional Schematic Figure 3-1 DL3800E Rear Panel Figure 4-1 INVERSE MULTIPLEXER MAIN MENU Figure 4-2 ALARMS AND STATUS MENU...
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Figure 4-17 SOFTWARE UTILITIES MENU Figure 4-18 LOGIN CONFIGURATION MENU Figure 4-19 SNMP CONFIGURATION MENU Figure 4-20 TESTS MENU Figure 4-21 Loopbacks within the DL3800E unit Figure 4-22 MANUAL NETWORK RESTORATION MENU Figure 5-1 DL3800E Front Panel Figure 6-1 TESTS MENU...
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List of Tables Table 4-1 Main Menu Table 4-2 3800E Alarm Descriptions Table 4-3 NET Statistics Items Table 4-4 Alarm Level Table 4-5 Node Configuration Options Table 4-6 DTE Configuration Menu Options Table 4-7 Network Configuration Menu Options Table 4-8 Login Configuration Options Table 4-9 SNMP Configuration Options Table 5-1 Front Panel LEDs Table 5-2 Net Statistics Menu Information Display...
Multiplexer system architecture, a discussion of features and benefits, and a sample application. Chapter 3, “Installation,” DL3800E Inverse Multiplexer in the operation site. Use this chapter to find out about command tools, system access, and basic configuration. Chapter 4, “Terminal Interface,”...
LECTRO this, or the previous, paragraph to avoid the discharge of static electricity, and subsequent damage to the equipment. xviii DL3800E Inverse Multiplexer User’s Guide — July 9, 2001 — CAUTION: Follow the instructions in TATIC ISCHARGE...
Typography Quick Eagle Networks manuals delineate the names of files, commands, and actions by using the fonts and typefaces described in the following table: Typeface or Symbol Purpose The names of commands, files, and Courier directories, as well as on-screen Font computer output.
3. Attach an address label to the shipping carton. Be sure to include the ERA number: DL3800E Inverse Multiplexer User’s Guide — July 9, 2001 ECHNICAL Telephone (408) 745-4200...
All suggestions and comments are appreciated. OCUMENT HANGE Date May 1996 January 1999 January 2000 September 2000 October 2000 June 2001 OMMENTS Quick Eagle Networks Technical Publications (408) 745-6250 E-mail techpubs@quickeagle.com ECORD Issue Rev. Description Initial Release Update & Misc. Changes Update & Misc.
URPOSE This chapter is a quick reference for the setup and configuration of the DL3800E Inverse Multiplexer (see Figure 1-1). Please note that not all configuration items will be discussed, because this chapter only serves to get you up and running.
Setup Terminal Log On Connect your terminal to the COMM port on the back of the DL3800E unit. Before you can log into the unit, you must make sure that terminal settings match the DL3800E. Defaults for the DL3800E unit COMM port: 9600 baud, no parity, 8 bit word length, 2 stop bits.
Network Configuration Set up a port for each E1 line you plan to use. Set Alarm to Report. Set ACTICVE/RESTORE MODE to Use w/auto restore. Normally is CRC4 enable. Primary clock Xmt=Network (assuming carrier or remote unit providing timing). Primary clock RCV should be set to AUTO. Configure SER to Immediate Confirm and select EXIT.
The inverse multiplexing technique employed by the DL3800E unit is completely transparent to the DTE application, as the multiple E1 circuits act as a single high-speed data link. The DL3800E unit can accept up to a 31-millisecond differential delay between individual E1 circuits, thus providing the capability to accommodate E1 circuits from divergent paths.
The DL3800E unit features an automatic rate fallback in the event of a failing E1 circuit. If the performance of an E1 circuit is detected to be falling below accepted levels, the DL3800E unit automatically removes the E1 from service, and throttles back the DTE to a data rate corresponding to the remaining E1s.
E1 circuits appear as a single high-speed data link to the DTE. The DL3800E unit accepts up to a 31-millisecond differential delay between individual E1 circuits, ensuring reliable operation in multiple carrier networks.
Signal Flow The DL3800E unit is configured by you for the number of E1 signals to be used for transmission. The DL3800E unit will provide a smooth clock to the DTE at the data rate required for the number of E1 outputs you have configured.
LED restores to green. Port crossover status clears and the SNMP alarm enCrossoverAlarm is idled. An IMUX E1 circuit is reestablished as soon as the mismatched circuits are disconnected and reconnected properly. Figure 2-3 is a functional schematic of the DL3800E unit showing a unit supporting four E1 lines. Introduction...
ASCII terminal interface, and the other port providing access to the built-in SNMP agent functionality. The DL3800E unit can be ordered with DC or AC power supplies and the built-in power supply has a range of 110 to 240 VAC and -40 to -75 VDC.
Quick Eagle Networks and your package carrier immediately. 1. Unpack and inspect the DL3800E unit for damage that might have occurred during shipment. If necessary, wipe off the exterior with a soft cloth. Save all packing slips and papers that come with the unit.
10. Configure DTE OUNTING Rack Mounting The DL3800E unit (Figure 3-1) is shipped with mounting ears for a 19- or 23-inch rack that are mounted for use with a 19-inch rack. Desk Operation And Stacking Four stick-on rubber feet are supplied with each DL3800E unit. Remove the covering and stick them onto the DL3800E unit bottom.
OWER ABLES The DL3800E unit can be ordered with an AC or DC power supply. AC Power Connection An AC power cord is supplied with the DL3800E -AC-XXX to provide 120 to 240 VAC power. The power cord receptacle is located on the rear panel of the DL3800E-AC-XXX.
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WARNING: Do not operate the DL3800E unit without an earth ground connection to the ground stud. The DL3800E unit is designed to operate with a negative power supply. This means the positive terminal is connected to the ground. WARNING: Damage to the DL3800E unit may result if power is connected improperly.
50-pin SCSI socket receptacle for HSSI compatible DTE, and a DB-25 (E1A-530) socket connector for V.35/X.21 or RS-449 compatible DTEs. If using a HSSI interface, the cable connecting the DL3800E unit to the DTE consists of 25 twisted pairs with an overall foil/braid shield. The DL3800E unit end of the cable should have a plug connector.
RS-232 straight cable, connect the modem to the appropriate RS-232 comm port (COMM PORT or NMS) on the rear panel of the DL3800E. Then, connect the modem to the phone line and the ASCII terminal or SNMP workstation. DE-9 to DB-25 adapters and null-modem adapters are available from Quick Eagle Networks.
If using a cable other than the above, see for Terminal Port pin assignments. With this cable, CTS (pin 8) must be connected between DL3800E units, but must not be connected to the terminal. The one socket connector on the ribbon is to be connected to the terminal or modem (if a remote site).
Each DL3800E unit is equipped with an integrated RS-232 ASCII user interface that can be accessed through the COMM PORT (DE-9 connector) located on the rear panel of the DL3800E. Through this interface, you can perform various functions described in this section.
ERMINAL PERATION General Menu Flow The menu interface for the DL3800E unit consists of the Main Menu, and a series of submenus. From the Main Menu, select the submenu to be selected or function to be performed by moving the highlight bar through the menu screen with the Cursor Arrow keys until the desired function is highlighted.
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Manual Network Restoration Logout Figure 4-1 INVERSE MULTIPLEXER MAIN MENU The product type is a DL3800E Digital Inverse Multiplexer. The software revision is This number is useful to determine the features that are supported with this release. The Node number, in this case further identify the node within your network.
Manual Network Restoration Allows you to manually restore a E1 circuit instead of it being restored automatically upon the clearing of a problem. Logout Allows you to log out of the DL3800E unit without having to wait for automatic logout. ELECT OCAL...
The ALARMS AND STATUS MENU is a view-only screen that allows you to review the current ALARMS AND STATUS items being reported by the DL3800E. To access this screen, move the highlight bar in the INVERSE MULTIPLEXER MAIN MENU to ALARMS AND STATUS and press Enter.
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*Active Not Active Excessive Delay Set Code Detected Reset Code Detected CRC Threshold DL3800E Inverse Multiplexer User’s Guide — July 9, 2001 Table 4-2 3800E Alarm Descriptions ALARM DESCRIPTION Alarm Indication Signal Detected — Net Port detects an unframed continuous stream of binary ones.
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Table 4-2 3800E Alarm Descriptions ALARM SES Threshold Net Port has exceeded the Severely Errored Second Threshold. UAS Threshold Net Port has exceeded the Unavailable Second Threshold. BPV MN/MJ Net Port has declared a Bipolar Violation Major or Minor Alarm. OOF MN/MJ Net Port has declared an Out Of Frame Major or Minor Alarm.
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Sync Sync No Net Sync HSSI Channel Lpbk User Lpbk V.35 LT Lpbk DL3800E Inverse Multiplexer User’s Guide — July 9, 2001 Table 4-2 3800E Alarm Descriptions ALARM DESCRIPTION This occurs if the checksum for the code image stored in ROM does not match that expected.
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Table 4-2 3800E Alarm Descriptions ALARM DTE Loss The signal indicating DTE presence has been lost. DTR On The V.35 DTR signals is present. RTS On The V.35 RTS signal is present. RLB On The V.35 DTE Remote Loopback signal has been set.
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If the E1 Network Configuration is set to NEVER USE and a good E1 is connected, the Alarm & Status display will read NOT USED. In Single DSU Mode, the DL3800E unit is Active if it is receiving valid E1 pulses from the network without Blue, Yellow, or Red Alarms...
Major 01/01/90 04:58:17 Network 15 Minute UAS Major Threshold Exceeded Major 01/01/90 04:58:17 Network 15 Minute UAS Major Threshold Exceeded Digital Link DL3800E SR 2.00.00 NODE 7: 01/01/90 05:55:07 SELECTED DEVICE ADDRESS: STATISTICS MENU Exit NETWORK 1 STATISTICS NETWORK 2 STATISTICS...
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15-minute intervals. The statistics for the second 24 hours are only in accumulative form. It also allows you to clear the display and reset the counters. For the DL3800E unit, the E1 statistics displayed are BPV, EB, FE, ES, SES, BBE, UAS, EFS, ESR, SESR, and BBER.
DIGITAL LINK DL3800E SELECTED DEVICE ADDRESS: NET STATISTICS - PORT 1 CURRENT SECONDS: 563 ESR: 0.0% CURRENT CUMULATIVE 1 CUMULATIVE 2 03:30-03:45 03:15-03:30 03:00-03:15 02:45-03:00 02:30-02:45 Figure 4-5 Parameter Definition Error Free Seconds (EFS) is calculated whenever ESR is calculated, and is the simple percentage complement of ESR: EFS = 100.0 - ESR.
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An Errored Block (EB) is a block in which one or more bits are in error. The EB if therefore equivalent to the Code Violation (CV) count calculated and displayed in the previous versions of the DL3800E unit. This count allows you to monitor the rate of EB faults on a line that is unavailable.
SESR, and BBER are the ratio of the fault-seconds count to the total seconds in available time. Event History Use this screen to review and clear the DL3800E unit alarm and status history. To view the EVENT HISTORY, move the highlight bar to EVENT HISTORY in the NODE MAIN MENU, and press Enter.
Major 01/01/90 04:58:17 Unit: Network 15 Minute UAS Major Threshold Exceeded Major 01/01/90 04:58:17 Unit: Network 15 Minute UAS Major Threshold Exceeded DIGITAL LINK DL3800E SR 2.00.00 NODE 7: SELECTED DEVICE ADDRESS: CONFIGURATION MENU Exit Unit Network Network Thresholds SAVE configuration...
Enter key. MM 0-59 minutes Alarm Enable This option allows you to ENABLE or DISABLE the DL3800E unit External Alarms. Highlight ALARM ENABLE and, using the space bar, toggle between ENABLED and DISABLED until the desired choice appears.
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Option Action Front Panel This feature enables (On) or disables (Off) your ability to make changes in the configuration or run tests from the front panel display and buttons. To change the Front Panel feature, highlight Front Panel, and use the Space Bar to toggle between Off and On.
Action Terminal Multidrop Mode If the terminal is connected to more than one DL3800E, it must be in Multidrop Mode. If it is connected to only one unit, this feature can be disabled. When it is disabled, the system starts up directly, without you having to log in.
Parameter Description/Action DTE Interface This allows you to select V.35, RS449, X.21 or HSSI as the DTE Interface. To change the present DTE Interface, use the UP and DOWN ARROW keys to highlight DTE Interface. Use the Space Bar to toggle between V.35, RS-449, X.21, and HSSI until the desired choice appears.
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Confirm, and press Enter to confirm the change.(In x.21 mode, RTS refers to the x.21 signal called Control). (Default - RTS) The following entries must be added: 4-24 DL3800E Inverse Multiplexer User’s Guide — July 9, 2001 Table 4-6 DTE CONFIGURATION MENU Options (Continued)
To access the NETWORK CONFIGURATION MENU, move the highlight bar to NETWORK CONFIGURATION in the CONFIGURATION MENU and press Return. The NETWORK CONFIGURATION MENU will be slightly different depending on which version DL3800E unit is being used. shows the NETWORK CONFIGURATION MENU. various parameters included. Table 4-6...
Parameter Description/Action Alarm This item allows you to enable (Report) or disable (Mask) the DL3800E unit from reporting alarms or sending SNMP traps from any of the individual E1 network ports. To change the present Alarm mode, use the UP and DOWN ARROW keys to highlight the Alarm item in the appropriate line for the desired port, and use the Space Bar to toggle between Report and Mask.
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NOTE: E1 links are not truly independent. This field is selectable on a per- E1 link basis. When the DL3800E unit treats the set of E1 links as a whole. If only one E1 link is selected for FLAG, then the DTE bandwidth is reduced to an amount corresponding to all links having been set for a time slot loss.
The second error restoral configuration is found on the Network Interval Configuration Screen on the DL3800E/3900s. Choices for configuration are immediate, 5, 10, 15, 30 seconds and 1, 5, 10, 15 minutes. As seen from previous discussions on fallback conditions, you should notice that it is possible that an E1 will constantly go in and out of service on a flaky circuit.
System Utilities The SYSTEM UTILITIES MENU in the INVERSE MULTIPLEXER MAIN MENU is used to access submenus in the DL3800E unit to configure various system utilities and perform certain functions with the DL3800E. These System Utilities include Software Download, Delete Entire Node Configuration, Login Configuration, SNMP Configuration, and Save Configuration.
• Binary Image with Kermit Make the proper RS-232 connection between the PC and the DL3800E. A DE-9 connector is pinned out on the DL3800E unit such that the use of a null modem is not necessary. DE-9 to DB-25 adapters may be needed depending upon the PC used.
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The file transfer will take at least 10 minutes at 9600 baud. 6. Once the file has downloaded, the DL3800E unit will take up to 30 seconds to reboot if the IMMEDIATE SOFTWARE ACTIVATION feature is enabled. If any communications errors were encountered, it may be necessary to perform this operation again.
Software Download Options Immediate Software Activation (Enable/Disable) The IMMEDIATE SOFTWARE ACTIVATION mode is controlled from the SYSTEMS UTILITIES/SOFTWARE DOWNLOAD MENU. When the IMMEDIATE SOFTWARE ACTIVATION feature is enabled, the software download (using MSR, Xmodem, Kermit, TFTP) is immediately activated (that is, copied from RAM to FLASH and rebooted). For consistency with the previous software version, IMMEDIATE=enabled is the default setting.
RAM Image is invalid (CRC error) The DL3800E unit image ID is reserved for use in a future application. This command does not activate the software if it is downloaded and is pending activation, nor does it indicate the software revision of the downloaded image.
RAM to FLASH and then rebooting. A TFTP Software Download server is built into the DL3800E. This feature allows you to do an TFTP transfer (using the SLIP/NMS port) to the unit RAM.
CODE appears in the field. The change must then be confirmed. Move the highlight bar to CONFIRM, and press Enter. Restart Node Software Restart Node Software resets the unit without powering down. 4-36 DL3800E Inverse Multiplexer User’s Guide — July 9, 2001 NET : 2 (114) NET : 1 (114) 01/01/90 05:55:07 MJ 7.00.000...
To access the LOGIN CONFIGURATION MENU, move the highlight bar to LOGIN CONFIGURATION in the NODE MAIN MENU and press Enter. Figure 4-18 is an example of the LOGIN CONFIGURATION MENU. DIGITAL LINK DL3800E SR 3.00.22 NODE SELECTED DEVICE ADDRESS: 1.00.000...
No Access Not allowed to access the menu screens. Terminal Automatic Sets the Automatic Logout feature of the DL3800E. The unit will logout if Logout no activity is detected for the amount of time configured. To change configuration, highlight the item and, using the Space Bar, toggle until your selection appears.
SNMP Configuration Through the SNMP CONFIGURATION MENU, you configure the Network Manager (NMS) port on the rear panel of the DL3800E, setting various addresses and configurable items required for operation with an SNMP Network Manager. The DL3800E unit utilizes SLIP protocol over the RS232 port to communicate with the SNMP management station.
To set or change the Trap Community String, move the highlight bar to Trap Community String, and enter an alphanumerical identifier. Press Enter when finished. 4-40 DL3800E Inverse Multiplexer User’s Guide — July 9, 2001 Table 4-9 SNMP Configuration Options...
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Option Description/Action SNMP Baud Rate This feature selects the SNMP port’s baud rate. To set or change the SNMP port baud rate, move the highlight bar to SNMP Baud Rate, and press the Space Bar to toggle between the options until the desired speed appears.
This option allows you to manually backup the database to EEPROM at any time To SAVE CONFIGURATION and backup the database to EEPROM, highlight MENU, and press the Enter key. 4-42 DL3800E Inverse Multiplexer User’s Guide — July 9, 2001 Figure 4-19 on page in the SYSTEM UTILITIES SAVE CONFIGURATION 4-39.
PAYLOAD LOOPBACK, LINE LOOPBACK, and LOCAL LOOPBACK. For troubleshooting suggestions see To access the TESTS MENU, move the highlight bar to TESTS in the DL3800E unit Main Menu, and press Enter. Figure 4-20 is an example of the TESTS MENU. The individual loopbacks and operation of the menu are described below in the text following the menu.
The data is regenerated prior to being looped back; however, no additional processing of the data is done by the DL3800E. This minimizes the impact of the DL3800E unit during this test so that network problems can be isolated.
Figure 4-21 Loopbacks within the DL3800E unit Remote Loopback Detection The DL3800E has the capability of detecting loopbacks which are set on the remote 3800E or somewhere in the network line. When a remote loopback is detected, the 3800E removes the port from the DTE data bundle and reduces the DTE data rate, sets the port LED to yellow and changes the port status in the Alarms &...
In this mode, a port in loopback will remain in service, which will disrupt traffic. Manual Network Restoration The DL3800E’s E1 ports are normally set to auto restore. However, you may choose to individually restore E1 networks after they fail, through the MANUAL NETWORK RESTORATION MENU.
Network 15 Minute UAS Major Threshold Exceeded Major 01/01/90 04:58:17 Unit: Network 15 Minute UAS Major Threshold Exceeded DIGITAL LINK DL3800E SR 2.00.00 NODE 7: 01/01/90 05:55:07 SELECTED DEVICE ADDRESS: 7.00.000 You must confirm to save changes. MANUAL NETWORK RESTORATION...
The front panel also features six LEDs for the DTE port, one for each of the E1 networks, three for the DL3800E unit status and one for Network Test. Figure 5-1...
End Test combination has no effect. Enter Button The ENTER button is used to select a submenu loop or configuration option. This button doubles as the right arrow button in a few situations. DL3800E Inverse Multiplexer User’s Guide — July 9, 2001...
It lights red when there is a HW DTE Loopback or DTE/NET Loopback in progress. It is connected to the TEST lead going from the DL3800E unit to the DTE, so both the LED and the lead carry the same data Network LEDs (T-1 through T-8) Network is in Red Alarm.
Status Access Levels And Protected Mode Front panel access can be limited by placing the DL3800E unit in the Protected Mode. In this mode, you can use the Front Panel User Interface only to monitor the status of the unit and its Error Counters, and view its configuration.
When the Self Test message is removed, the default message Inverse Multiplexer NOTE: The menu system in the DL3800E unit is consistent with other Quick Eagle Networks products. Therefore, a user familiar with an existing product can easily operate the DL3800E. An example of a...
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ALARM AND STATUS MENU through the terminal interface, or the Network Manager. The TEST MENU is used for DTE and Network loopbacks. The DL3800E unit does not allow performing tests on the remote unit through the front panel user interface. This feature is only available with the terminal interface.
Pressing the DOWN ARROW cursor button when the default message is in the display brings the message display. This allows you to log onto either the local or remote DL3800E. When logged onto the local unit it displays onto the remote unit, the display will read DL3800E unit being monitored and controlled, press Enter.
Use the UP and DOWN ARROW buttons to view the following messages, see Equipment Alarm and Status items that could appear in this menu. DL3800E Inverse Multiplexer User’s Guide — July 9, 2001 DISPLAY MENU ENTER NODE STATUS...
DTE Status The next display shows the status of the DTE data port. The menu is accessed by pressing Enter when If errors are detected, one or more of the following messages will appear. Use the down and UP ARROW buttons to view further messages. Table 4-2 on page 4-5 Status items that could appear in this menu.
This display provides the number of FEs that have occurred in the accumulation period. 5-10 DL3800E Inverse Multiplexer User’s Guide — July 9, 2001 press Enter again. The first display will Net N CV, , showing the number of seconds in the current ).
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An Errored Block (EB) is a block in which one or more bits are in error. The EB if therefore equivalent to the Code Violation (CV) count calculated and displayed in the previous versions of the DL3800E. This count allows a user to monitor the rate of EB faults on a line that is unavailable.
The submenus are accessed by pressing Enter when the appropriate menu appears in the display. 5-12 DL3800E Inverse Multiplexer User’s Guide — July 9, 2001 appears in the display. Pressing the down or UP ARROW...
TEST MENU EXIT DTE TESTS EXIT NET 1 TESTS EXIT NET 2 TESTS EXIT NET 3 TESTS EXIT NET 4 TESTS Return to Menu item: TESTS NOTE: A menu item will appear only for those E1 network interfaces. installed. Front Panel Interface Strike ENTER to activate ENTER DTE/NET LOOP...
DTE and associated cabling, the DTE Board, and the link between the DTE Board and the E1 Main Board. To initiate a DTE/NET LOOP from the DL3800E unit front panel, press Enter when When a DTE/DTE LOOP is in operation, a “plus sign” will appear after...
PAYLD, LINE, and LOCAL LOOPBACK. Payload Loopback The PAYLOAD LOOPBACK on the DL3800E unit is used to verify the proper operation of the E1 network and the DL3800E. To initiate a PAYLOAD LOOPBACK from the DL3800E, press Enter when PAYLD LOOPBACK appears in the display for the E1 (NET 1 through NET 8) line to be looped back.
E1 network back towards the network. The data is regenerated prior to being looped back, however, no additional processing of the data is performed by the DL3800E. This minimizes the impact of the DL3800E unit during this test so that the problems can be isolated.
DTE interface parameters. The remote unit configuration may also be viewed and changed. The DL3800E unit configuration can only be changed when the unit is not in the Protected Mode. In Protected Mode the configuration can only be viewed but not changed.
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DTE signal is defined missing when the DTR and the RTS line is not asserted. Other options include DTE/DCE mode, V.35/RS449/X.21, and clocking option (SCTE/SCT Normal or SCT Invert) 5-18 DL3800E Inverse Multiplexer User’s Guide — July 9, 2001 ENTER BACKUP DATABASE BACKUP DATABASE...
Menu Definition NETWORK CONFIG Used to set the operating mode (Inverse Mux or Single Line DSU), and MENU clocking options of that are common to all E1 Network Ports. NET N CONFIG MENU Used to set various configurable items that are unique to each individual E1 Network Port, including Framing Format, TS16, Alarm Reporting, Auto- Restore, and Equalization.
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The NODE CONFIGURATION MENU is used to configure various parameters of the DL3800E, including the following. 5-20 DL3800E Inverse Multiplexer User’s Guide — July 9, 2001...
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Parameter Unit ID Unit Number REM Access ON/OFF Date & Time Node Comm Port Baud Rate Parity Data Bits Stop Bits Table 5-5 NODE CONFIGURATION MENU Definition The Unit ID is an alphanumeric designation up to 16 characters in length. The unit is shipped without a Unit ID. To access Unit ID from the NODE CONFIGURATION MENU press...
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Terminal quit sending data when its buffers are full. The choices are Use or Ignore XON/XOFF If the local terminal is connected to more than one DL3800E, it must be in Multidrop Mode. If it is connected to only one unit, this feature can be disabled.
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COMM PORT CONFIG EXIT BAUD RATE 9600 EXIT PARITY EVEN EXIT DATA BITS 8 EXIT STOP BITS 2 EXIT USE XON/XOFF EXIT MULLTIDROP MODE To node configuration menu item: COMM PORT CONFIG Note that both the NODE HW (HARDWARE) REV and the NODE SW (SOFTWARE) REV are set at the factory and cannot be changed.
Pressing Exit aborts the operation without making the change. Each of the Configurable items are described in detail in “Network Configuration” on page 4-25. 5-24 DL3800E Inverse Multiplexer User’s Guide — July 9, 2001...
Pressing Exit aborts the operation without making the change. Each of the Configurable items are described, along with the various options, in detail in “Network Configuration” on page 4-25. 5-26 DL3800E Inverse Multiplexer User’s Guide — July 9, 2001...
Minor alarm threshold will generate an alarm report and the exceeding a Major alarm threshold will actually cause an E1 line to be automatically taken out of service. 5-28 DL3800E Inverse Multiplexer User’s Guide — July 9, 2001 of this User Manual.
Pressing Enter when NET THRESHOLDS appears in the display screen will start the menu and allow you to scroll, using the down or up arrow buttons, through the following options: Table 5-6 NET THRESHOLD Options and Values OPTION VALUE CON CRCS CON CRCS CON SES CONSES...
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UP and DOWN ARROW buttons to get to that particular alarm and press Enter. Use the Up or Down buttons to raise or lower the value. 5-30 DL3800E Inverse Multiplexer User’s Guide — July 9, 2001 Table 5-6 NET THRESHOLD Options and Values (Continued) VALUE...
Quick Eagle Technical Support at (408) 745-4200. UNNING IAGNOSTIC You should test the DL3800E unit before you use it. If it, or an associated module, does not operate properly during or after testing, call Quick Eagle Networks Technical Support at: (408) 745-4200.
E1 network. It can test a problem whose source is the E1 line. LOCAL Loopback Test Use the LOCAL Loopback test to verify the operation of the DL3800E unit data port and its connections. To receive valid test data at the DTE device, run LOCAL Loopback on all active E1 ports.
Telco demarcation points, the DL3800E unit at one or both ends, or the cable between the E1 line reporting errors and the DL3800E. The TEST LED on the DL3800E unit turns red during the tests, and the E1 port LED turns yellow. ROUBLESHOOTING THE This section describes problems you may encounter on the DL3800E unit and suggests ways you can troubleshoot them.
Problem Solution DL3800E unit doesn’t If the DL3800E unit is AC powered, make sure it is plugged into a live AC power up. outlet. If it is DC powered, make sure the respective DC leads are not crossed.
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DL3800E unit are are what the carrier is providing. constantly red. Check each DL3800E unit for excessive errors. Check the E1 cabling or inside wiring for possible problems. Verify with the service provider that the local Smart Jack is not looped up.
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Problem Solution The NETWORK E1 LEDs Make sure a valid DTE device is connected to the DL3800E, and is powered on an DL3800E unit are flashing green. If no DTE device is connected and the unit is configured for V.35 or RS449, make sure that DTE LOSS is set to None.
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Make sure the DTE device supports the DTE port clocking option. Use SCTE clocking for the DTE device if the application is using V.35, and the DL3800E unit has more than two connected E1 circuits. Try inverting DTE Tx clock and/or Rx clock when in v.35/RS-449 or x.21 modes.
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Make sure the Comm Port parameters match the terminal’s, and the DL3800E unit has a unique ID. If the DL3800E unit is in a daisy-chain, you can display a roll call of all unit numbers by pressing Ctrol-x five times.
E1 N ETWORK NTERFACE Parameter Interface Type Number of Ports Framing Formats Line Code Transmit Line Rate Receive Line Rate Synchronization Network Connector XTERNAL LOCK Parameter Rate Connector Type Input Impedance Input Voltage Specifications Setting 2, 4, 6 or 8 CRC4 (Enabled or Disabled) HDB3 2.048 Mbps ±...
RONT ANEL Item Display Key Pad DTE Status LEDs TEST Status LEDs Unit Status LEDs IAGNOSTICS Item Loopbacks Self Test Alarms Lamp Test OWER Power AC Input DC Input (Optional) Power Consumption NVIRONMENTAL Item Temperature Operating Temperature Interface 16 Character Alphanumeric Four Keys TD, RD, RTS (TA), CTS (CA), HSSI, TEST, T1-T8 TEST...
17.2 in W x 2.8 in H x 11in D (43.7 cm W x 7.1 cm H x 27.9 cm D) XTERNAL LARM DB-9 DL3800E Inverse Multiplexer User’s Guide — July 9, 2001 C to 60 ONTACTS Alarm Designations Alarm In (+)
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Will indicate an alarm when the circuit is open. Alarm In – This alarm can be used to indicate to the DL3800E unit that an external alarm has occurred such as a door opening or closing. This would require the customer to use a 48V volt supply to drive the alarm.
ERMINAL ONNECTION SIGNAL DIRECTION Receive Data To Terminal Send Data From Terminal Clear to Send To Terminal (Connect between units, but not to the Terminal) Signal Ground (Bidirectional) DCE C ONNECTORS SIGNAL DIRECTION SG - Signal Ground — RT - Receive Timing To DTE CA - DCE Available To DTE...
The pin assignments for the DB-25 to DC-37 Data Port cable are listed in Table B-5. Table B-5 DB-25 to DC-37 Data Port Cable Pin Assignments DC-37 DB-25 DL3800E Inverse Multiplexer User’s Guide — July 9, 2001 Signal Name Signal TT A From DTE...
5,6,7,8,10,12,1314,15 Not Connected DB-25 DE-9 A An adapter is available from Quick Eagle Networks that will allow the Quick Eagle Networks DE-9 ribbon cable to be compatible with a DB-25 connector on the terminal port. DB-25 DL3800E Inverse Multiplexer User’s Guide — July 9, 2001...
* Needs to be wired in when using X.21 with SCTE. XTERNAL LOCK A DE-9 connector is provided on the DL3800E unit rear panel for connection to an External Clock. Pin Assignments for the External Clock connector are as Listed in Table B-14:...
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Per RS-422 requirements, the receiver has an input sensitivity of 200 mV over the input voltage range of ±7 V. The frequency is 2.048 MHz ± 50 ppm, and the impedance is 10 k W. DL3800E Inverse Multiplexer User’s Guide — July 9, 2001...
LARM INOUT Pin Assignments for the Alarm connector are as follows: Alarm in The above table shows the signal names and pin connections. These outputs of Major alarms normally open and normally closed, Minor alarms normally open normally closed, and Alarm in + & - are done through relays and an optoisolators respectively.
ABAM A designation for 22-gauge, 110-ohm, plastic-insulated, twisted-pair Western Electric cable normally used in central offices. AIS (Alarm Indication Signal) An unframed sequence of All Ones normally sent by a DSU/CSU that cannot maintain the required pulse density in AMI mode or sent by a CSU that has a loss of signal condition on its data port.
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The signal is sent to maintain continuity of transmission and to notify the far-end that a transmission fault exists on the line. Same as Alarm Indication Signal (AIS). DL3800E Inverse Multiplexer User’s Guide — July 9, 2001...
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broadband Services or interfaces that operate above the T1 data rate, typically at NxT1, T3, SONET, or ATM speeds. BPV (Bipolar Violation) Occurs when the ones bit is not represented with the opposite signal of the previous ones bit. CCITT International Telegraph and Telephone Consultative Committee.
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(e.g. voice-band voice and data). A DACS is in essence a manual T-1 switch. DL3800E Inverse Multiplexer User’s Guide — July 9, 2001...
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data link Any serial data communication transmission path, generally between two adjacent nodes or devices and without any intermediate switching nodes. data link layer In the OSI model, the network processing entity that establishes, maintains and releases data link connections between adjacent elements in the network. DCE (Data Circuit-Terminating Equipment) Equipment that is either a part of the network, an access point to the network, a network node, or equipment at which a network circuit terminates.
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BPV or OOF events. EIA (Electronic Industries Association) An organization which sets data communication industry standards. encoding/decoding The process of reformatting information into a format suitable for transmission, and then recovering it after transmission. DL3800E Inverse Multiplexer User’s Guide — July 9, 2001...
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equalization The spacing and operation of amplifiers so that the gain provided by the amplifier, per transmission frequency, coincides with the signal loss at the same frequency; circuitry that compensates for the differences in attenuation at different frequencies. ES (Errored Second) Occurs when a second has one or more OOF events or CRC violations or with one or more BPV or OOF events.
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An adjustable value used to tune the attenuation between the DSU/CSU card and the last repeater on the T1 circuit. LED (Light emitting diode) A device that accepts electrical signals and converts the energy to a light signal. DL3800E Inverse Multiplexer User’s Guide — July 9, 2001...
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LOF (Loss of Frame) Occurs when a received digital signal loses frame synchronization. LOFC (Loss of Frame Count) A count of declared Loss of Frame events (ESF framing only). loopback A diagnostic test in which the transmitted signal is returned to the sending device after passing through a data communications link or network.
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An additional, non-informational bit appended to a group of bits indicating that the number of “ones” in the bits group is odd or even. parity check A process of error checking using the parity bit. G-10 DL3800E Inverse Multiplexer User’s Guide — July 9, 2001...
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polarity Any condition where there are two opposing charges, such as positive and negative. port The physical point of access into a computer, network or other electronic device. protocol A formal set of rules governing the format, timing, sequencing and error control of exchanged messages on a data network.
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A sequential transmission of bits constituting an entity of data over a data circuit. SES (Severely Errored Second) A second during which 320 or more CRC violations or OOF events have occurred (ESF framing only). G-12 DL3800E Inverse Multiplexer User’s Guide — July 9, 2001...
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SG (Signal Ground) A signal from DTE to DSU/CSU. simplex current One way transmission used by Telco to provide power to repeaters. SLIP (Serial Line IP) A TCP/IP protocol that allows IP packets to be transmitted over a serial link, such as a dial-up or private telephone line.
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Operating modes include local and remote digital loopback and local and remote analog loopback. V.54 A CCITT standard for loop test devices in modems. It defines local and remote loopbacks. G-14 DL3800E Inverse Multiplexer User’s Guide — July 9, 2001...
Alarm Level 4-16 Alarms and Status Application Audience xvii AWG tray cable Button Overview cable installing DC power cable ties COMM and NMS Port Pin Assignments COMM PORT Configuration 4-17 Configuration Menu 5-17 CONFIGURATION MENU Items Conventions xviii DB-25 to DE-9 Adapter Pinouts DB-25 to DE-9 Pinouts B-6, DC power DC Power Connections...