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HOTWIRE MODEL 7914 STANDALONE T1 SDSL TERMINATION UNIT USER’S GUIDE Document No. 7914-A2-GB20-00 February 1998...
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Via the Internet: Visit the Paradyne World Wide Web site at http://www.paradyne.com Via Telephone: Call our automated call system to receive current information via fax or to speak with a company representative. — Within the U.S.A., call 1-800-870-2221 — Outside the U.S.A., call 1-727-530-2340 Printed on recycled paper February 1998 7914-A2-GB20-00...
(1) a National Electrical Code (NEC)/Canadian Electrical Code (CEC) Class 2 circuit for use in North America, or (2) a Safety Extra Low Voltage (SELV)/Limited Power Source (LPS) input certified for use in the country of installation. 7914-A2-GB20-00 Important Regulatory Information February 1998...
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To Users of Digital Apparatus in Canada: This Class A digital apparatus meets all requirements of the Canadian interference-causing equipment regulations. Cet appareil numérique de la classe A respecte toutes les exigences du règlement sur le matérial brouilleur du Canada. February 1998 7914-A2-GB20-00...
Contents About This Guide Document Purpose and Intended Audience Document Summary Product-Related Documents About Hotwire Model 7914 Termination Units Hotwire 7914-A1 Models and Features Typical Configurations User Interface Types Installing the Unit Overview Package Checklist for Hotwire Model 7914-A1 Planning for Your SDSL Application...
The Hotwire 7914 may be ordered either as a standalone unit (7914-A1-xxx) or as a nest-mounted card (7914-B1-xxx) that fits in a Hotwire 7900 nest. This guide describes the installation and maintenance procedures for the standalone version, Model 7914-A1-xxx.
Local and remote T1 and SDSL performance monitoring The Hotwire 7914 may be ordered either as a standalone unit (7914-A1-xxx) or as a nest-mounted card (7914-B1-xxx) that fits in a Hotwire 7900 nest. This guide describes the installation and maintenance procedures for the standalone version, Model 7914-A1-xxx.
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Chapter:ChapName There are several versions of the Model 7914-A1, each supporting a different interface (DSX-1 or V.35/V.11) and power supply (120 Vac or 220 Vac): Model Number 7914-A1-201 7914-A1-202 7914-A1-301 7914-A1-302 Features 1.544 Mb/s DSX-1 compatible. Connection to 120 Vac power supply.
(CO) unit and the other is the remote or customer premises (CP) unit. The Hotwire Model 7914 standalone unit is configured at the factory to operate at the CP side of a T1 SDSL connection. (Conversely, Hotwire Model 7914 nest cards are configured for CO operation.) The central site unit must be reconfigured...
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Figure 1-2 Hotwire Model 7914 nest cards. The nest cards at the central site each terminate a single SDSL subscriber line. Each line is then converted to a DSX-1 interface for connection to other central office equipment, such as a digital cross-connect system (DCS).
Cellular network providers must lease large numbers of T1 circuits in order to connect remote cell sites to mobile telephone switching offices (MTSOs). Hotwire Model 7914 products provide an alternative to standard repeatered T1 services. Cell Site DSX-1 DSX-1 Unit...
Installing the Unit Overview This chapter describes the procedure for installing a single standalone termination unit using a 120 Vac or 230 Vac power supply (Model 7914-A1-20x or 7914-A1-30x). Package Checklist for Hotwire Model 7914-A1 Verify that your package contains the following:...
Plan the phone line to be dedicated to SDSL. The same phone line used for the 7914 Termination Unit pair cannot also be used at the same time to carry other voice or data services. This is because the SDSL frequency spectrum...
V.35/V.11 socket on the rear panel. Connect the other end to your V.35/V.11 equipment. V.35/V.11-Compatible Hotwire 7914 – Rear Panel 3. DSX-1-compatible units only: Connect a DSX-1 interface cable into the DS1 jack on the rear panel. Connect the other end to your DSX-1 equipment.
Connect the power lead into the – 48 Vdc jack on the rear panel. To obtain information on the power supplies and power cord adapters available, refer to Warranty, Sales, and Service Information this User’s Guide. on page A at the beginning of February 1998 7914-A2-GB20-00...
Switchpack Mode. Connecting to a System Terminal An optional system maintenance terminal can be attached to your Model 7914 Termination Unit through the modular jack on the front panel. You can have terminals attached to both endpoints (CO and CP).
6. Power up the board to reset and enable the new configuration. Chapters 4 for the DSX-1 and V.35/V.11 units, (for DSX-1-compatible units) or Chapter 5 Switchpack Definitions February 1998 (for V.35/V.11-compatible , for switchpack locations on your Switchpack 7914-A2-GB20-00...
R) Board Reset ?) Redisplays this Menu Command This guide depicts the system terminal menus as they appear from a CP unit. This is the default configuration for Model 7914 standalone units. 7914-A2-GB20-00 G123 CP units are SDSL Termination Units – Remote (STUR) CO units are SDSL Termination Units –...
– 0 to 133 feet, 0dB SDSL FW Rev – 1.0 Globespan FW Rev – 1.12 CP Serial # – 088165 on page 4-5. Worksheets , for help in selecting the appropriate February 1998 Making Changes in Table 4-1. 7914-A2-GB20-00...
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5) 533 to 655 ft N) No change NOTE: 7914-A2-GB20-00 Customizing DSX-1-Compatible Units Additional options may be displayed on your terminal. These other options (for –7.5, –15, and –22.5 dB) are not for use with this product. Use of these options will cause a weak signal and degrade performance.
The definition of each switch in the switchpack is also provided in Appendix C, 4. Replace the enclosure cover and power up the board to reset and enable the new configuration. on page 3-2. Switchpack Definitions Switchpack Definitions February 1998 Switching Between 7914-A2-GB20-00...
1–3 – LBO 4–8 – N/A <<Press a key to continue!>> Possible values for each parameter are listed in Worksheets application. 7914-A2-GB20-00 Table C-1 on page C-2. Table C-1 on page C-2). Contact your network administrator to verify see table below...
Use of these settings will cause a weak signal and degrade performance. Switchpack Definitions LBO SETTING 0 to 133 feet – 0dB 133 to 266 feet 266 to 399 feet 399 to 533 feet 533 to 655 feet -7.5 dB -15 dB -22.5 dB February 1998 7914-A2-GB20-00...
R) Board Reset ?) Redisplays this Menu Command This guide depicts the system terminal menus as they appear from a CP unit. This is the default configuration for Model 7914 standalone units. 7914-A2-GB20-00 The G123 code denotes G123 a successful startup CP units are SDSL Termination Units –...
The S4 Switchpack setting is displayed only if the unit is in Switchpack Mode. on page 5-4. – CP – V.35 – 1544 Kbps (Unframed) – Loop – 1.2 – 1.12 – 085561 , for help in selecting the appropriate configuration options for your February 1998 Table 5-1. See Appendix A, 7914-A2-GB20-00...
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External – The V.35/V.11 interface is used as the clock source. When Timing is changed, a system message warns that the board will automatically be reset. Enter Y to reset the board and change the timing. 7914-A2-GB20-00 Customizing V.35/V.11-Compatible Units 12 – 768 kbps (12 x 64) 13 –...
3-7 – << Press a key to continue!>> Switchpack Definitions – CO/CP OFF=CP, ON=CO – Timing (CO Only) OFF=Internal, ON=External – Unused Payload Rate See table below – Configuration OFF=Terminal, ON=Switchpack February 1998 on page 3-2. Switchpack Definitions Switchpack 7914-A2-GB20-00...
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1536 kbps. If you change from 1544 kbps to a lower rate, and the far-end unit is DSX-1-compatible, you must set the starting time slot on the DSX-1-compatible unit and reset the units. 7914-A2-GB20-00 Customizing V.35/V.11-Compatible Units SWPK SWITCHES | 7,6,5,4,3...
Enter 1 at the Command prompt to display board status. Command Board Status –––––––––––– T1 STATUS: LOOPBACK STATUS: OFF SDSL STATUS: S/N RATIO: Command Board Status for DSX-1-Compatible Unit 7914-A2-GB20-00 Network is UP LOOP is UP 44.0 dB February 1998...
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Loopback status is either OFF, Local Loopback ON, or Remote Loopback SDSL Status displays whether the loop is up or down. Signal to Noise (S/N) ratio is not displayed if the loop is down. ACTIVE ACTIVE LOOP is UP 43.5 dB. February 1998 7914-A2-GB20-00...
Select from the above list to display statistics for a specified time period. NOTE: There is no verification presented before statistics are deleted. Be sure you want to clear all statistics before pressing 7. 7914-A2-GB20-00 – 1 minute stats. – 15 minute stats. – 1 hour stats.
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(Shown only when Framing is set to D4.) Cyclic Redundancy Check. An invalid CRC value was detected. (Shown only when Framing is set to ESF.) February 1998 0 (D4 framing only) 0 (ESF framing only) 0 (D4 framing only) 0 (ESF framing only) 7914-A2-GB20-00...
To access the STUC (or STUR) Menu, enter 6 at the Command prompt. ***** STUC Menu ***** 1) Board Status 2) Performance Monitor 3) Board Configuration ?) Redisplay this menu Q) Quit STUC Command 7914-A2-GB20-00 February 1998 Monitoring the Unit...
A failure in the SDSL loop has been detected. NOTE: The Loop LED lights or blinks during power up, then goes out when the loop has been established. February 1998 7900 7900 97-15716 7900 97-15717 Testing , for more information. 7914-A2-GB20-00...
In a remote loopback, the data is passed on to the remote (far-end) unit and then reflected back. Figures 7-1 through 7-4 illustrate how local and remote loopbacks operate in different configurations. The bold arrows indicate the direction of data flow. 7914-A2-GB20-00 Monitoring the Unit February 1998...
Figure 7-2. Local Loopback Initiated by the CP Unit E1 HDSL E1 HDSL 7900 7900 Loop Bk LED lights Terminal E1 HDSL E1 HDSL 7900 7900 February 1998 Diagnostic Equipment 7900 7900 97-15249-01 Diagnostic Equipment 7900 7900 Loop Bk LED lights 97-15518 Terminal 7914-A2-GB20-00...
The Loop Bk LED on the local (initiating) unit does not light. Diagnostic Equipment Figure 7-3. Remote Loopback Initiated by the CO Unit Diagnostic Equipment Figure 7-4. Remote Loopback Initiated by the CP Unit 7914-A2-GB20-00 E1 HDSL E1 HDSL 7900 7900 Loop Bk LED lights...
Reset will bring the loop down. Are you sure? (y/n) Command If “y” is selected, the Main Menu is displayed, the loop goes down, and the Loop LED blinks until the loop is restored. Pressing any key other than “y” is interpreted as an “n”. February 1998 7914-A2-GB20-00...
(DSX-1-compatible or V.35/V.11-compatible) on either end of the SDSL connection. There are three combinations of the two types of units: DSX-1-compatible units on both ends V.35/V.11-compatible CP unit, DSX-1-compatible CO unit V.35/V.11-compatible units on both ends 7914-A2-GB20-00 February 1998...
2) 133 to 266 ft 3) 266 to 399 ft 3) 266 to 399 ft 4) 399 to 533 ft 4) 399 to 533 ft 5) 533 to 655 ft 5) 533 to 655 ft February 1998 Multiplexer DSX-1 Unit Central Site 97-15718 7914-A2-GB20-00...
This section defines the pin assignments for the terminal cable from the front panel modular jack to your PC’s COM port. If your PC’s COM port requires a 9-pin D-shell connector, the cable must use the following pin assignments. Modular 7914-A2-GB20-00 9-Pin D-Shell Pin February 1998 97-15268-02...
The SDSL modular connector that plugs into the rear panel of the unit has the following pin assignments. 3 – 8 NOTE: Pin 1 is on the left when viewing the jack from its inserted position. 25-Pin D-Shell Pin Signal Loop Tip Loop Ring unused February 1998 97-15442-01 7914-A2-GB20-00...
The modular connector that plugs into the rear panel of DSX-1-compatible units has the following pin assignments. 6 – 8 NOTE: Pin 1 is on the left when viewing the jack from its inserted position. 7914-A2-GB20-00 Signal Tx Ring Tx Tip open...
To help detect center of signaling element on BB Element Timing (B) Transmit Signal To help detect center of signaling element on BA Element Timing (A) Transmit Signal To help detect center of signaling element on BB Element Timing (B) Test Indicator Reserved for test February 1998 7914-A2-GB20-00...
Switchpack Definitions DSX-1-Compatible Units VT100 Terminal * Default in bold DSL Line Jack DSX-1-Compatible Unit Switchpack Location 7914-A2-GB20-00 Switchpack S4 Modular Jack Position 3 – 7 Switchpack S5 Position 1 – 3 4 – 8 February 1998 Settings* OFF = CP...
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448 kbps (7 x 64) 384 kbps (6 x 64) 320 kbps (5 x 64) 256 kbps (4 x 64) 192 kbps (3 x 64) 128 kbps (2 x 64) 64 kbps (1 x 64) [Unit set for Terminal Mode] 7914-A2-GB20-00...
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Build Out values. Table C-2. Line Build Out: Switches 1 – 3 on Line Build Out 0–133 Feet 133–266 Feet 266–399 Feet 399–533 Feet 533–655 Feet –7 dB –15 dB –22 dB 7914-A2-GB20-00 Switchpack S5 Switch Position February 1998 Switchpack Definitions...
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February 1998 Settings* OFF = CP ON = CO For CO units: OFF = Internal timing ON = External timing For CP units: unused, leave OFF Payload Rate (see table) OFF = Terminal Mode ON = Switchpack Mode 97-15525 7914-A2-GB20-00...
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18 x 64 (1152 kbps) 19 x 64 (1216 kbps) 20 x 64 (1280 kbps) 21 x 64 (1344 kbps) 22 x 64 (1408 kbps) 23 x 64 (1472 kbps) 24 x 64 (1536 kbps) 7914-A2-GB20-00 Switch Position February 1998 Switchpack Definitions...
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2.048 Mbps defined by CCITT standards G.703 and G.704. factory defaults A predetermined set of configuration options for general operation. Frame Alignment Signal . A loss of signal (LOS) error detection. Frame Alignment Word. A loss of synchronization error detection. 7914-A2-GB20-00 February 1998 GL-1...
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A data signaling rate common in the United States. A term for a digital carrier facility used to transmit a DS1 formatted signal of 1.544 Mbps. Transmit Data. An EIA-lead standard for V.24 circuit CT 103; an input signal (DTE-to-DCE). V.35 ITU-T standard for a high-speed, 34-pin, DCE/DTE interface. GL-2 February 1998 7914-A2-GB20-00...
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DSX-1-compatible unit, A-4 V.35-compatible unit, A-4– A-6 configurations campus network, 1-3 cellular, 1-5 central site, 1-4 customer service, B 7914-A2-GB20-00 D4 framing, 4-3 data rate, 5-3, 5-5 DB25-to-V.35 adapter cable, installation, 2-3 display board status, 6-1 line build-out definitions, 4-6...
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1-1 of user interfaces, 1-5 Switchpack Mode DSX-1-compatible units, 4-4 V.35-compatible units, 5-4 overview, 3-1 switching to and from, 3-2 switchpacks DSX-1-compatible unit, C-1 V.35-compatible unit, C-4 how to display, 4-5, 5-4 February 1998 7914-A2-GB20-00...
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3-2 V.35/V.11-compatible unit, 5-2 testing, 7-1 time slot selection, 4-5 unframed, 4-3 user interface, 1-5, 3-1 7914-A2-GB20-00 V.11, jumper settings for, C-4 V.35 adapter cable, B-5 jumper settings for, C-4 V.35 to DSX-1 configuration, A-3 V.35 to V.35 configuration, A-3 V.35/V.11 signaling, default, 5-4...