Lucent Technologies 7820-0657-001 Скачать руководство пользователя страница 24

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Viewing configuration information

3-4

DSLPipe DSU (SDSL) User’s Guide

V35

Indicates

OFF_line

ON_line

Data Bit Polarity

Indicates

Norm

(Normal) or

Rev

(Reverse). The default is

Rev.

This means that the transmitter inverts the data polarity

before sending data.

Sign/Magn Bit Seq

Indicates

Norm

(Normal) or

Rev

(Reverse). The default is

Rev

. This means that the magnitude bit is followed by the sign

bit.

Noise Margin

Shows the noise margin value (in dB). If the noise margin is
less than -5dB, the SDSL line is terminated.

Data Rate

Shows the current transmission rate

DSL ch Data

Encode/Decode

Shows one of the following:

NRZ

NRZI

FMO

FM1

, or

Manchester

. The default is NRZ. This means that signal

transmissions go from positive to negative without ever
assuming a zero value (Non-Return to Zero).

V.35 ch Data

Encode/Decode

Shows one of the following:

NRZ

NRZI

FMO

FM1

, or

Manchester

. The default is NRZ. This means that signal

transmissions go from positive to negative without ever
assuming a zero value (Non-Return to Zero).

DSL ch Rx CRC

Shows either

Enable

Disable

. The default is

Enable

This means that the receiver will check for CRC over the SDSL
line.

DSL ch Tx CRC

Shows either

Enable

Disable

. The default is

Enable

This means that the CRC is appended to the end of the frame
when data is sent over the SDSL line

V.35 ch Rx CRC

Shows either

Enable

Disable

. The default is

Enable

This means that the receiver will check for CRC over the V.35
line.

Table 3-1. Fields in the DSLPipe status window (Continued)

Fields

Description

Содержание 7820-0657-001

Страница 1: ...DSLPipe DSU SDSL User s Guide Part Number 7820 0657 001 For software version 7 0 0 October 1999 ...

Страница 2: ...ucent Technologies Notice Every effort was made to ensure that the information in this document was complete and accurate at the time of printing However information is subject to change Trademarks DSLPipe CellPipe DSLTNT and MAXDSL20 are trademarks of Lucent Technologies Other trademarks and trade names mentioned in this publication belong to their respective owners Ordering Information To order ...

Страница 3: ... release notes and addenda to this manual Obtaining technical assistance You can obtain technical assistance by telephone email fax modem or regular mail as well as over the Internet Enabling Lucent to assist you If you need to contact Lucent for help with a problem make sure that you have the following information when you call or that you include it in your correspondence Product name and model ...

Страница 4: ...e the United States at one of the following numbers Obtaining assistance through correspondence Lucent maintains two email addresses for technical support questions One is for customers in the United States and the other is for customers in Europe the Middle East and Asia If you prefer to correspond by fax BBS or regular mail please direct Telephone outside the United States 510 769 8027 Austria G...

Страница 5: ...nit Refer all servicing to trained service personnel 3 Product installation should be performed by trained service personnel only 4 Install only in restricted access areas in accordance with UL1950 C22 2 No 950 and IEC60950 5 The maximum recommended operating ambient is 104 F 40 C Allow sufficient air circulation or space between units when installed in a closed or multiple rack assembly 6 Slots a...

Страница 6: ...e three wire power cord which includes earthing conductor For models with dc power inputs the protective earth connection must be established by using the dedicated earthing terminal marked with the PE symbol or if provided the earthing pin of the input terminal block 10 Models with dc power inputs must be connected to a 48V dc supply source that is electrically isolated from the ac source in acco...

Страница 7: ...install telephone jacks in wet locations unless the jack is specifically designed for wet locations Never touch uninsulated telephone wires or terminals unless the telephone line has been disconnected at the network interface Use caution when installing or modifying telephone lines Avoid using equipment connected to telephone lines other than a cordless telephone during an electrical storm There i...

Страница 8: ...enn sie nicht ordnungsgemäß ausgetauscht wird Ersetzen Sie die Batterie nur mit einer Batterie des gleichen oder eines ähnlichen vom Hersteller empfohlenen Typs Entsorgen Sie gebrauchte Batterien gemäß den Anweisungen des Herstellers 19 Mains Disconnect no power switch Caution The power supply cord is used as the main disconnect device Make sure that the outlet socket is located installed near the...

Страница 9: ...Setting up the DSLPipe DSU 2 2 Setting the data transmission rate 2 3 Configuring the unit as either CPE or COE 2 3 Connecting the cables 2 4 Checking the activity of the LED lights 2 4 Viewing configuration information 3 1 Items you need 3 1 Connecting serial cable and setting up communications software 3 1 Viewing configuration information 3 3 Viewing diagnostic information 3 5 Hardware Specific...

Страница 10: ......

Страница 11: ...t use a DSLPipe DSU for channelized services such as voice transmission The DSLPipe DSU uses 2B1Q line encoding with echo cancellation to transfer at a high data rate It also provides high immunity to background noise The size of the wire in part determines the maximum transmission rate and distance as shown in Table 1 1 Table 1 1 DSLPipe DSU transmission rate DSLPipe DSU features 1 2 DSLPipe DSU ...

Страница 12: ...st 18 000 feet at 786 Kbps with a 24 gauge wire DSLPipe DSU configuration You can use a DSLPipe DSU as either a Customer Premises Equipment CPE or Central Office Equipment COE Figure 1 1 illustrates how you can use the unit as a CPE Figure 1 1 Example Using a DSLPipe DSU as CPE A DSLPipe DSU accepts HDLC data from a V 35 router It converts the data into SDSL format and sends it via a WAN link to a...

Страница 13: ...e data to V 35 Router B DSLPipe DSU architecture Figure 1 3 illustrates the DSLPipe architecture Figure 1 3 DSLPipe DSU architecture The DSLPipe DSU driver picks up the HDLC data and sends it to the Ethernet controller for processing The data is sent via the bus to the SDSL chip The chip converts the data to RFC 1490 packets and sends it across a WAN link to another device DSLPipe DSU as COE WAN V...

Страница 14: ......

Страница 15: ...s The package in which you received your DSLPipe DSU should contain the following items See Figure 2 1 1 DSLPipe DSU The model name DSL HST DSU is printed on the bottom of the unit 2 V 35 to DB 25 connector 3 WAN cable with RJ 11 modular plug connectors 4 DSLPipe DSU SDSL User s Guide 5 Power supply Checking package contents 2 1 Setting up the DSLPipe DSU 2 2 Connecting the cables 2 4 Checking the...

Страница 16: ...LPipe DSU Figure 2 2 shows the DSLPipe DSU s rear panel To set up your DSLPipe DSU you use components located on the rear panel to set the data transmission rate configure the unit as either CPE or COE and connect the necessary cables Figure 2 2 DSLPipe DSU Rear Panel 1 2 3 4 5 V 35 TERMINAL WAN RATE DC IN ...

Страница 17: ...uring the unit as either CPE or COE If you want the DSLPipe DSU to function as a CPE leave the fourth DIP switch in the up off position If you want the unit to function as a COE move the fourth DIP switch down Note JP3 and JP4 must be installed for Dip Switch 4 to be functional Table 2 1 Data transmission settings Rate DIP Switch 1 DIP Switch 2 DIP Switch 3 144 Kbps ON ON ON 272 Kbps ON ON OFF 400...

Страница 18: ...o verify that your DSLPipe DSU is connected properly observe the activity pattern of the lights at the front of the unit see Figure When all the cables are connected verify that The con light is on initially and then turns off It blinks if there are any SDSL errors The wan light turns on after the con light turns off It blinks until a connection is established and then remains on The lnk light is ...

Страница 19: ...DSLPipe DSU SDSL User s Guide 2 5 Figure 2 3 shows the location of the status lights on the DSLPipe DSU front panel Figure 2 3 Location of the LED lights in the DSLPipe DSU front panel ...

Страница 20: ......

Страница 21: ...ctor on the back of the DSLPipe unit If your computer is a Macintosh the cable must fit the modem port s nine pin mini DIN connector You also need communications software that supports VT100 emulation Connecting serial cable and setting up communications software To establish a serial connection proceed as follows 1 Use a serial cable to connect your computer s serial or modem port to the terminal...

Страница 22: ... s serial ports the software uses If the only serial port available is currently used by an internal modem you may need to use your computer s setup software to specify an external connector for the port that will be used in place of the internal modem In some cases you also may need to remove the modem See the manual for the modem and your computer s user manual for details Terminal type Specify ...

Страница 23: ...tion After you set up the communications software and the DSLPipe unit s configuration menu appears see Figure 3 1 you can enter 0 to view DSLPipe status information The DSLPipe status screen continues to refresh every few seconds press any key to stop the refresh Table 3 1 describes the fields that display in the status window SDSL V 35 DSU Software Version 3 31 0 Show DSL Status 1 Change Configu...

Страница 24: ... This means that signal transmissions go from positive to negative without ever assuming a zero value Non Return to Zero V 35 ch Data Encode Decode Shows one of the following NRZ NRZI FMO FM1 or Manchester The default is NRZ This means that signal transmissions go from positive to negative without ever assuming a zero value Non Return to Zero DSL ch Rx CRC Shows either Enable or Disable The defaul...

Страница 25: ...ay in the list that appears V 35 ch Tx CRC Shows either Enable or Disable The default is Enable This means that the CRC is appended to the end of the frame when data is sent over the V 35 line V 35 ch RxC Polarity Indicates Norm Normal or Rev Reverse The default is Norm This means that data will be sampled at the rising edge of the clock V 35 ch TxC Polarity Indicates Norm Normal or Rev Reverse Th...

Страница 26: ...eceived by the SDSL line V35_RX PACKETS Shows the number of packets received by the V 35 line V35_RX_ERROR_COUNT Shows the number of errors received by the V 35 receiver V35_TX_ERROR_COUNT Shows the number of errors transmitted by the V 35 transmitter SDSL_RX_ERROR_COUNT Shows the number of errors received by the SDSL receiver SDSL_TX_ERROR_COUNT Shows the number of errors transmitted by the SDSL ...

Страница 27: ...agnostic information DSLPipe DSU SDSL User s Guide 3 7 DMA_TXB_STATUS Shows Working if the V 35 line is working Otherwise shows Non Working Table 3 2 Fields in the HDLC Registers list Continued Fields Description ...

Страница 28: ......

Страница 29: ...r SDSL WAN DB 25 to V 35 connector Transmission rate 144 Kbps 2320 Kbps DSL line code 2B1Q Line impedance 135 ohms Dimensions 220mm x 169mm x 40mm Weight Approximately 2 lbs 0 9 kg Electrical power input 1A 9 to 18 VDC via AC Adapter Electrical power consumption Less than 5 watts Operating humidity 5 95 noncondensing Operating temperature 0 50 C EMC FCC 15B Safety UL A ...

Страница 30: ......

Страница 31: ...procedures or Lucent Technologies tests disclose that the alleged defect is not due to defects in material or workmanship 3 Lucent Technologies liability shall be limited to either repair or replacement of the defective goods at Lucent Technologies option 4 Lucent Technologies MAKES NO EXPRESS OR IMPLIED WARRANTIES REGARDING THE QUALITY MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE BEYOND TH...

Страница 32: ...e defective product is not returned within this time period Lucent Technologies will bill the customer for the product at list price Out of warranty repair Lucent Technologies will either repair or at its option replace a defective product not covered under warranty within ten 10 working days of its receipt Repair charges are available from the Repair Facility upon request The warranty on a servic...

Страница 33: ...nt users should make sure that it is permissible to be connected to the facilities of the local telecommunications company An acceptable method of connection must be used to install the equipment The customer should be aware that compliance with the above conditions may not prevent degradation of service in some situations Repairs to certified equipment should be coordinated by a representative de...

Страница 34: ......

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