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About HotWire Model 7915 Standalone Termination Units

1-5

7915-A2-GB20-20

September 1997

Cellular network providers must lease large numbers of E1 circuits in order to
connect remote cell sites to mobile telephone switching offices (MTSOs).
HotWire Model 7915 products provide an alternative to standard repeatered E1
services.

Figure 1-3

depicts a typical cellular network access application.

Switch

Management

Station

7900 Nest

Nest

Cards

Telco 2-wire

facilities between

Cell Sites

and MTSO

Customer Premises

Central Site

G.703

G.703 Unit

G.703

G.703 Unit

G.703

Cell Site

Mobile Telephone

Switching Office

97-15536

Figure 1-3.

Cellular Network Access

User Interface Types

There are three types of user interfaces to the standalone units:

VT100-compatible terminal interface (Terminal Mode, see

Chapter 3)

Manual setting of switches and jumpers (Switchpack Mode, see

Chapter 3)

Front Panel LED status indicators (see

Chapter 6)

Содержание HotWire 7915

Страница 1: ...CHANGE Please note that the area code for Paradyne Corporation in Largo Florida has changed from 813 to 727 For any Paradyne telephone number that appears in this manual with an 813 area code dial 72...

Страница 2: ...HOTWIRE MODEL 7915 STANDALONE E1 SDSL TERMINATION UNIT USER S GUIDE Document No 7915 A2 GB20 20 September 1997...

Страница 3: ...es the right to revise this publication and to make changes from time to time in the contents hereof without obligation of Paradyne Corporation to notify any person of such revision or changes Changes...

Страница 4: ...ory requirements of the country in which it is installed If necessary consult with the appropriate regulatory agencies and inspection authorities to ensure compliance 7 A rare phenomenon can create a...

Страница 5: ...n a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense The authority to operate this equipment is condition...

Страница 6: ...Network and Application Equipment 2 2 Connecting Power to the Unit 2 3 3 Using Terminal and Switchpack Modes Choosing an Interface Mode 3 1 Connecting to a System Terminal 3 1 Switching Between Termin...

Страница 7: ...onitor 6 1 Board Status 6 2 Performance Statistics 6 3 Remote Unit Information 6 4 Front Panel LEDs 6 5 7 Testing Detecting a Problem 7 1 Understanding Loopback Tests 7 1 Local Loopbacks 7 2 Remote Lo...

Страница 8: ...B Cable Pin Assignments Terminal Connection Cable B 1 SDSL Connection Cable Pin Assignments B 2 DB25 to V 35 Adapter Cable Pin Assignments B 3 C Switchpacks and Jumpers G 703 Compatible Units C 1 V 3...

Страница 9: ...7915 and typical configurations Chapter 2 Installing the Unit Describes how to install the unit and make connections Chapter 3 Using Terminal and Switchpack Modes Provides instructions for connecting...

Страница 10: ...and terms used in this document Index Lists key terms acronyms concepts and sections in alphabetical order Product Related Documents Document Number Document Title 7900 A2 GB20 HotWire Model 7900 Basi...

Страница 11: ...epeaterless E1 transmission on loops exceeding standard specifications Tolerates bridged tap Provides local and remote alarm surveillance and performance monitoring HotWire 7915 may be ordered either...

Страница 12: ...ply 7915 A1 301 2Mb s G 703 compatible 75 Ohm interface Connection to 230 Vac power supply 7915 A1 302 2Mb s V 35 V 11 compatible Connection to 230 Vac power supply 7915 A1 311 2Mb s G 703 compatible...

Страница 13: ...er premises remote unit CP Each HotWire Model 7915 standalone unit is configured at the factory to operate at the CP side of an E1 SDSL connection However you can easily reconfigure a unit for use at...

Страница 14: ...HotWire 7900 Nest containing HotWire Model 7915 nest cards Each nest card terminates a single subscriber line in the CO Each line is then converted to a G 703 interface for connection to other centra...

Страница 15: ...work access application Switch Management Station 7900 Nest Nest Cards Telco 2 wire facilities between Cell Sites and MTSO Customer Premises Central Site G 703 G 703 Unit G 703 G 703 Unit G 703 Cell S...

Страница 16: ...ination units and uses only a single power source HotWire Model 7915 A1 50x units which use 48 Vdc direct power must be installed in a HotWire 7900 10 Slot Standalone Shelf Installation instructions f...

Страница 17: ...ation Equipment DSL RCV XMT 75 E1 2048KB S 48 VDC 97 15529 G 703 Compatible 75 Ohm Interface HotWire 7915 Rear Panel DSL E1 2048 Kb S 48 VDC 120 OHM 97 15704 G 703 Compatible 120 Ohm Interface HotWire...

Страница 18: ...able Pin Assignments in Appendix B for pin assignments depending on whether you need a DB25 or V 35 34 pin connector Connect the other end to your V 35 V 11 equipment 4 G 703 compatible units only Con...

Страница 19: ...Mode You change configuration parameters by moving switchpacks and jumpers on the board The standalone unit is not preconfigured You must ensure that the switchpack is set for your desired configurati...

Страница 20: ...he operating mode of the unit to either Terminal Mode the default setting or Switchpack Mode Refer to Chapter 4 for G 703 compatible units or Chapter 5 for V 35 V 11 compatible units for information o...

Страница 21: ...the unit operates You can change a unit s configuration options by Selecting the Board Configuration branch of the Main Menu while in Terminal Mode Changing switchpack and jumper settings on the board...

Страница 22: ...It also allows you to change certain parameters on the board This function is affected by the status of the switchpack DIP switch control setting When operating in Terminal Mode the system default you...

Страница 23: ...Line Encode HDB3 3 Starting Time Slot 1 Payload rate 512 Kbps 8x64 SDSL FW Rev 02 Globespan FW Rev 1 07 CP Serial 088165 1 3 Board Configuration 4 Switchpack Definitions Prints Board Configuration and...

Страница 24: ...ode Possible Settings HDB3 AMI Default Setting HDB3 Specifies the type of line encoding used to ensure one s density in the transmission signal To toggle the encoding method enter 2 at the Config prom...

Страница 25: ...s and Jumpers 4 Replace the enclosure cover and power up the board to reset and enable the new configuration Configuring Framed or Unframed Operation G 703 to G 703 Configuration In Switchpack Mode sw...

Страница 26: ...y the definition of each position in switchpack S4 enter 4 at the Config prompt Switchpack definitions are also listed in Appendix C Switchpacks and Jumpers Config 4 Switch pack definition 1 CO CP OFF...

Страница 27: ...unit operates You can change a unit s configuration options by Selecting the Board Configuration branch of the Main Menu while in Terminal Mode Changing switchpack and jumper settings on the board ha...

Страница 28: ...rameters on the board When operating in Terminal Mode the system default you can make configuration changes through the terminal menus When operating in Switchpack Mode you can display configuration p...

Страница 29: ...erface V 35 2 Payload Rate 512 Kbps 8x64 3 Timing Internal SDSL FW Rev 4 3 Globespan FW Rev 1 12 CP Serial 85649 1 3 Board Configuration 4 Switchpack Definitions Prints Board Configuration and this me...

Страница 30: ...24 x 64 3 192 Kbps 3 x 64 14 896 Kbps 14 x 64 25 1600 Kbps 25 x 64 4 256 Kbps 4 x 64 15 960 Kbps 15 x 64 26 1664 Kbps 26 x 64 5 320 Kbps 5 x 64 16 1024 Kbps 16 x 64 27 1728 Kbps 27 x 64 6 384 Kbps 6 x...

Страница 31: ...rs in the correct position for each desired configuration option Refer to Appendix C Switchpacks and Jumpers for the definition of each switch and jumper 4 Replace the enclosure cover and power up the...

Страница 32: ...100 384 6x64 00101 1408 22x64 10101 448 7x64 00110 1472 23x64 10110 512 8x64 00111 1536 24x64 10111 576 9x64 01000 1600 25x64 11000 640 10x64 01001 1664 26x64 11001 704 11x64 01010 1728 27x64 11010 76...

Страница 33: ...ormance statistics for the unit and its network connection You can monitor operations by viewing the Board Status option from the Main Menu Performance Monitor option from the Main Menu Board Status a...

Страница 34: ...Status DTR ACTIVE DSR ACTIVE LOOPBACK STATUS OFF SDSL STATUS LOOP is UP S N RATIO 43 5 dB Command Board Status for V 35 V 11 Compatible Unit E1 status displays one of the following Network is Up Rece...

Страница 35: ...ning total These statistics can be cleared and restarted at any time Enter 2 at the Command prompt to enter the Performance Monitor menu Command 2 Performance Monitor Time Since Board Power Up or Rese...

Страница 36: ...de Refer to the Glossary for definitions of the types of errors reported Remote Unit Information The same type of information provided for the locally attached unit CP or CO can also be displayed but...

Страница 37: ...T S R X D T X D 97 15532 Front Panel LEDs for V 35 V 11 Compatible Unit LED Meaning Local1 The local G 703 interface has a loss of signal Remote1 The remote G 703 interface has a loss of signal Loop B...

Страница 38: ...nables a technician to isolate equipment on the HDSL circuit to determine where on the circuit trouble may be occurring Loopback takes the system off line Data received from E1 or V 35 application equ...

Страница 39: ...ntil the loopback is disabled Terminal 97 15249 01 CO CP E1 HDSL 7900 7900 E1 HDSL 7900 7900 Diagnostic Equipment Diagnostic Equipment Loop Bk LED lights Figure 7 1 Local Loopback Initiated by the CO...

Страница 40: ...led The Loop Bk LED on the local initiating unit does not light Terminal 97 15259 01 CO CP E1 HDSL 7900 7900 Diagnostic Equipment E1 HDSL 7900 7900 Diagnostic Equipment Loop Bk LED lights Figure 7 3 R...

Страница 41: ...loopback test enter 5 at the Command prompt Command 5 Remote Loopback is Enabled Command 5 Remote Loopback is Disabled Resetting the Unit Enter R at the Command prompt to reset the board This is equi...

Страница 42: ...on settings based on the types of units G 703 compatible or V 35 V 11 compatible on either end of the SDSL connection There are three combinations of the two types of units G 703 compatible units on b...

Страница 43: ...5 G 703 Unit To connect two G 703 compatible units configure the units as follows Terminal Mode factory defaults are in bold for Switchpack mode defaults see Appendix C Configuration Option G 703 Comp...

Страница 44: ...bps select a starting time slot appropriate for the payload rate If the payload rate is 2048 Kbps use Unframed E1 Line Code N A HDB3 or AMI Timing Loop not configurable N A V 35 V 11 to V 35 V 11 Conf...

Страница 45: ...x 64 1088 kbps 2 2 x 64 128 kbps 18 18 x 64 1152 kbps 3 3 x 64 192 kbps 19 19 x 64 1216 kbps 4 4 x 64 256 kbps 20 20 x 64 1280 kbps 5 5 x 64 320 kbps 21 21 x 64 1344 kbps 6 6 x 64 384 kbps 22 22 x 64...

Страница 46: ...in 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...

Страница 47: ...42 01 1 4 5 7 8 2 3 7 6 8 20 4 5 Modular Pin 25 Pin D Shell Pin RXD TXD GND TXD RXD GND DSR DCD DTR RTS CTS SDSL Connection Cable Pin Assignments The SDSL modular connector that plugs into the rear pa...

Страница 48: ...assignments 97 15569 13 12 11 10 9 8 7 6 5 4 3 2 1 25 24 23 22 21 20 19 18 17 16 15 14 1 2 14 3 16 15 12 17 9 4 5 8 6 7 24 11 20 21 18 25 A P S R T Y AA V X C D F E B U W H N L NN SHIELD TD A TD B RD...

Страница 49: ...S4 Switchpack S4 VT100 Terminal Modular Jack DSL Line Jack Position 1 2 3 7 8 Settings OFF CP ON CO OFF AMI line encoding ON HDB3 line encoding Starting Time Slot see Table C 1 OFF Terminal Mode ON S...

Страница 50: ...x 64 2 OFF ON OFF OFF OFF 1920 Kbps 30 x 64 3 ON ON OFF OFF OFF 1856 Kbps 29 x 64 4 OFF OFF ON OFF OFF 1792 Kbps 28 x 64 5 ON OFF ON OFF OFF 1728 Kbps 27 x 64 6 OFF ON ON OFF OFF 1664 Kbps 26 x 64 7...

Страница 51: ...t Maximum Payload Rate Starting at Time Slot Switch Position Starting Time Slot Maximum Payload Rate Starting at Time Slot 7 6 5 4 3 26 OFF ON OFF ON ON 384 Kbps 6 x 64 27 ON ON OFF ON ON 320 Kbps 5 x...

Страница 52: ...d leave OFF Payload Rate see table OFF Terminal Mode ON Switchpack Mode Pins 1 2 2 3 Settings V 35 signaling V 11 signaling Default in bold 3 2 1 6 7 8 ON 1 2 3 4 5 OFF Internal timing ON External tim...

Страница 53: ...12 x 64 768 kbps ON ON OFF ON OFF 13 x 64 832 kbps OFF OFF ON ON OFF 14 x 64 896 kbps ON OFF ON ON OFF 15 x 64 960 kbps OFF ON ON ON OFF 16 x 64 1024 kbps ON ON ON ON OFF 17 x 64 1088 kbps OFF OFF OFF...

Страница 54: ...An EIA lead standard for V 24 circuit CT 106 an output signal DCE to DTE Code Violation This is equivalent to a BPV Used with HDB3 coding format Data Communications Equipment The equipment that provi...

Страница 55: ...ork reported condition A reinitialization of the device that occurs at power up or in response to a reset command Request to Send An EIA lead standard for V 24 circuit CT 105 an input signal DTE to DC...

Страница 56: ...t settings 3 2 configuration options G 703 compatible units 4 1 V 35 compatible units 5 1 Switchpack Mode 4 5 5 5 Terminal Mode 4 2 5 2 worksheets A 1 configuration worksheets G 703 compatible unit A...

Страница 57: ...1 2 connecting 2 3 problems detecting 7 1 R rear panel diagram 2 2 related documents vi remote loopback test 7 3 remote unit status 6 4 resetting the unit 4 4 5 4 7 4 S service information A starting...

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