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Stinger® ADSL 48-Port Annex C LIM Guide

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Configuring an ADSL 48-Port Annex C
Line Interface Module (LIM)

The Stinger ADSL 48-port Annex C Line Interface Module (LIM) provides 48 asymmetric
digital subscriber line (ADSL) interfaces that support high-speed, asymmetric data transfer.
The module supports the ITU G.992.1, G.992.2, G.994.1, and G.997.1 protocols.

The ADSL 48-port Annex C LIM, product code STGR-LIM-AC-48, supports Annex C in the
Stinger LS chassis only.

Note:

The ADSL 48-port Annex C LIM is designed to be used in a Stinger unit that is

equipped with the model A-J control module (STGR-CM-A-J). The A-J control module
supplies the 400Hz clock required by Annex C ADSL. The model A-J control module operates
only with the Stinger LS unit, model STGRLS-1-J or STGRLS-2-J.

Installing an ADSL 48-port Annex C LIM

The ADSL 48-port Annex C LIM is installed in a Stinger unit in the same manner as any other
LIM. See the Getting Started Guide for your unit for details. After installation, configure the
module following the instructions in this document.

Module specifications

The specifications for the ADSL 48-port Annex C LIM are as follows:

Installing an ADSL 48-port Annex C LIM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Module specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Interpreting ADSL 48-port Annex C LIM status lights . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Configuring ADSL Annex C interfaces. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Configuring call control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14

Checking status of ADSL DMT interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16

Physical dimensions

Height: 15 inches (38.1cm)

Width: 1.06 inches (2.69cm)

Depth: 9 inches (22.8cm)

Weight: 4.0 pounds (1.8kg)

Power requirements

84 W (typical).

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Summary of Contents for Stinger STGR-LIM-AC-48

Page 1: ...Stinger ADSL 48 Port Annex C Line Interface Module LIM Guide For software version 9 2 167 December 2001 ...

Page 2: ...tificate for this equipment according to EN 45014 access the Lucent INS online documentation library at http www lucentdocs com ins Safety compliance and warranty information Before handling any Lucent Access Networks hardware product read the Edge Access Safety and Compliance Guide included in your product package See that guide also to determine how products comply with the electromagnetic inter...

Page 3: ...e number Software and hardware options If supplied by your carrier service profile identifiers SPIDs associated with your line Your local telephone company s switch type and operating mode such as AT T 5ESS Custom or Northern Telecom National ISDN 1 Whether you are routing or bridging with your Lucent product Type of computer you are using Description of the problem Obtaining assistance through em...

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Page 5: ... The Interleave Path Config subprofile 1 10 Margin Config subprofile 1 12 Configuring call control 1 14 Checking status of ADSL DMT interfaces 1 16 AL DMT Stat profile 1 16 Checking status of physical interface 1 17 Displaying ADSL DMT port status and nailed groups 1 18 Obtaining statistics about operations 1 19 Chapter 2 Configuring LIM and LIM Port Redundancy 2 1 Overview of LIM and LIM port red...

Page 6: ...vi Stinger ADSL 48 Port Annex C LIM Guide Contents Checking the status of extended LIM port redundancy 2 13 ...

Page 7: ...nnex C LIM 1 2 Figure 1 2 Relationship between noise margin parameters and power adjustments 1 12 Figure 1 3 Future support How noise margins relate to dynamic rate adaptation 1 14 Figure 2 1 LIM redundancy in a Stinger FS 2 2 Figure 2 2 LIM port redundancy on a Stinger FS 2 10 ...

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Page 9: ...Stinger ADSL 48 Port Annex C LIM Guide ix Tables Table 1 1 ADSL 48 port Annex C LIM status light 1 3 Table 1 2 Supported ADSL mode bitmap and latency combinations 1 4 ...

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Page 11: ...the command line interface CLI You should understand the fundamental concepts of digital subscriber line DSL technology and be familiar with the relationship between DSL interfaces and associated configuration profiles Documentation conventions Following are the special characters and typographical conventions that might be used in this manual Convention Meaning Monospace text Represents text that...

Page 12: ...ger control module redundancy Square brackets indicate an optional argument you might add to a command To include such an argument type only the information inside the brackets Do not type the brackets unless they appear in boldface Separates command choices that are mutually exclusive Points to the next level in the path to a parameter or menu item The item that follows the angle bracket is one o...

Page 13: ... Management of the ATM Stack Supplement Describes SNMP management of ATM ports interfaces and connections on a Stinger unit to provide guidelines for configuring and managing ATM circuits through any SNMP management utility Stinger T1000 Module Routing and Tunneling Supplement Describes how to configure the Layer 3 routing and virtual private network VPN capabilities supported by a Stinger T1000 m...

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Page 15: ...nex C ADSL The model A J control module operates only with the Stinger LS unit model STGRLS 1 J or STGRLS 2 J Installing an ADSL 48 port Annex C LIM The ADSL 48 port Annex C LIM is installed in a Stinger unit in the same manner as any other LIM See the Getting Started Guide for your unit for details After installation configure the module following the instructions in this document Module specific...

Page 16: ...te the status of the module and its ports Figure 1 1 shows the front panel and status lights of the ADSL Annex C LIM Figure 1 1 ADSL 48 port Annex C LIM Temperature range LT version 32 F to 131 F 0 C to 55 C Relative humidity 10 to 90 noncondensing Physical connectors USOC RJ21X 50 pin telephone industry standard connector Must meet JIS C5973 standards Interface Standards ITU G 992 1 Annex C G dmt...

Page 17: ... slot 1 2 1 14 2 28 06 20 1999 00 27 37 shelf 1 slot 1 3 1 14 3 28 06 20 1999 00 27 37 shelf 1 slot 1 4 1 14 4 28 06 20 1999 00 27 37 shelf 1 slot 1 5 1 14 5 28 06 20 1999 00 27 37 shelf 1 slot 1 6 1 14 6 28 06 20 1999 00 27 37 shelf 1 slot 1 7 1 14 7 28 06 20 1999 00 27 37 shelf 1 slot 1 8 1 14 8 28 06 20 1999 00 27 37 shelf 1 slot 1 9 1 14 9 29 06 20 1999 00 27 37 shelf 1 slot 1 10 1 14 10 29 06...

Page 18: ...ave has increased latency but less errors Select the bitmap based on data rate loop length and time code modulation TCM ISDN interference factors DBM is superior for shorter loops but affects TCM ISDN service FBM is superior for loops greater than 2km and has no effect on TCM ISDN service Both DBM and FBM are not affected by TCM ISDN service An AL DMT profile contains the following parameters and ...

Page 19: ...wn interleave line latency up interleave trellis encoding yes gain default 20 db upstream start bin 6 upstream end bin 31 Parameter Description Name Specifies the name of the interface The default value is the interface address in shelf slot port format for example 1 2 3 but you can assign a text string of up to 16 characters Physical Address Specifies the physical address of the interface in the ...

Page 20: ...i dmt setting is not supported for Annex C Line Latency Down Specifies the latency path to be used for downstream data transport Default value is interleave for Annex C Fast latency is not supported for G lite For related settings see Fast and interleaved bit rate parameters on page 1 9 Line Latency Up Specifies the latency path to be used for upstream data transport Default value is interleave fo...

Page 21: ...s the system to generate an error message Automatic at startup rate adaptation means that the rate is selected during the training startup process The line initializes at a minimum specified bit rate and target noise margin If the line fails to achieve the minimum bit rate in either direction it cannot start and it sends a message that the requested bit rate was too high If the line can support a ...

Page 22: ...rain Consequently Lucent Technologies recommends the use of filters on all analog telephone lines at the subscriber location Power level parameters and power spectral density PSD Maximum aggregate power level is the maximum output power allowed on the line at the transmitter output This value is expressed in decibels with reference to 1 milliwatt dBm where 0dBm equals 1 milliwatt It is defined for...

Page 23: ... customer premises equipment CPE are connected and the ADSL interleaved or fast channel The line latency up and line latency down settings in the Line Config subprofile fast or interleave determine which channel is used in each direction Fast line latency is not available when the G lite line code is used For more information see Overview of AL DMT profile on page 1 4 The Fast Path Config subprofi...

Page 24: ... any shelf any slot 0 interleave path config min bitrate up 128 min bitrate down 128 max bitrate up 1000 max bitrate down 8000 planned bitrate up 512 planned bitrate down 1000 Parameter Description min bitrate up Specifies the minimum bit rate for upstream traffic from 0Kbps through 1024Kbps When the automatic rate adaptive mode is in use the line initializes at this upstream rate or fails to init...

Page 25: ... for the first interface of a 48 port Annex C LIM in slot 2 max bitrate down Specifies the maximum bit rate for downstream traffic from 0Kbps through 15 000Kbps The default value for the ADSL 48 port Annex C LIM is 8000Kbps Note Not configured for operator controlled rate adaptation planned bitrate up Specifies the constant bit rate for upstream traffic when operator controlled rate adaptive mode ...

Page 26: ...transceiver unit ATU attempts to reduce the far end output power If the noise drops below a minimum margin the ATU attempts to increase the far end power output until the noise level is at or above the configured minimum Although the noise margin settings can be from 1dB through 31dB the modem software limits the maximum noise margin to 15dB If you specify a setting greater than 15 the modem softw...

Page 27: ...DSL 48 port Annex C LIMs Min Noise Margin Up Specifies the minimum upstream noise margin the line tolerates relative to 0dB before attempting to increase power output The valid range is 0dB through 31dB with a practical limitation of 15dB set by the modem software The default is 0dB for ADSL 48 port Annex C LIMs Min Noise Margin Down Specifies the minimum downstream noise margin the line tolerates...

Page 28: ...s SPVCs across port state changes This allows xDSL subscribers to establish connections on LIM interfaces in operating states before the line state is fully up and modem has successfully trained SPVC connections are accepted when the modem has not fully trained up to the port up state If a LIM interface with an active SPVC connection changes from a port up state to the state it was in before it wa...

Page 29: ...or not Specify one of the following values no the default The Stinger call control mechanism allows calls to be established when the line state is up and disallows calls when the line state is down yes The Stinger call control mechanism ignores the line state and allows calls to be established on a port as long as the specified slot is operational and the specified port is enabled ignore lineup In...

Page 30: ...tate Indicates the overall state of the line Values are does not exist Link is not physically present on board disabled Line is disabled active Multipoint is established Spare Physical Address Indicates the shelf slot and port number of spare LIM Sparing State Indicates the state of the redundancy function If redundancy is not enabled sparing none is the value If redundancy is enabled and the LIM ...

Page 31: ... 288000 down stream rate interleave 3200000 up stream latency interleave down stream latency interleave firmware ver 0047 ansi adsl ver 4 initial adsl ver 2 hardware ver 9 modem hw state init ok accum bit err 0 num sec valid 0 num sec invalid 0 operational mode annex C gdmt fbm Parameter Description IF Group Index Indicates the SNMP interface group index of the line Unit Type Indicates the operati...

Page 32: ...ast or interleave The none setting indicates that the line is not operational Firmware Ver Indicates the version number of the ADSL modem firmware ANSI ADSL Ver Indicates the supported issue of the ANSI T1 413 standard Issue 2 Hardware Ver Indicates the hardware version of the ADSL modem Modem Hw State Indicates the state of the interface after initialization Valid values are init ok all is well b...

Page 33: ...istics about operations The Physical Statistic subprofile enables you to check interface operations Following are the Physical Statistic parameters shown with sample settings for an active interface in AL DMT STAT shelf 1 slot 3 4 physical statistic line up timer 2 19 22 rx signal present yes up dwn cntr 1 self test passed noise margin down 4 attenuation down 0 output power down 2 noise margin up ...

Page 34: ...t upstream attenuation in decibels Output Power Up Indicates the current upstream aggregate power level in dBm Near End FEC Indicates forward error correction FEC errors detected by the COE ADSL transceiver unit ATU Near End CRC Indicates cyclic redundancy check CRC errors detected by the COE ATU Near End HEC Indicates header error control HEC errors detected by the COE ATU Far End FEC Indicates f...

Page 35: ...in behind or next to it in place of a line protection module LPM All other LIMs must use an LPM with port redundancy LPM RP for line protection Note Some older Stinger systems are equipped with an interface redundancy module IRM located behind the spare LIM and LPMs with redundancy LPM R located behind the LIMs to be backed up In this case additional configuration steps might be needed For more in...

Page 36: ...reestablished on the spare secondary LIM When the redundancy function is disabled the spare LIM is deactivated Its logical connections are terminated and reestablished on the primary LIM Figure 2 1 illustrates LIM redundancy for a failed SDSL LIM in slot 4 of a Stinger FS chassis A Stinger LS chassis has its LPMs and PSMs or CLT modules next to its LIMs rather than behind them Figure 2 1 LIM redun...

Page 37: ...09 shelf 1 slot 16 0 The spare ADSL LIM has the following profile admin read lim sparing config 1 14 0 LIM SPARING CONFIG shelf 1 slot 14 0 read Parameter Specifies spare slot type Type of spare LIM installed in the slot This value is automatically detected and set by the software when the Stinger powers up sparing mode Enable disable redundancy You can enable two LIM redundancy modes The inactive...

Page 38: ... sparing mode parameter to manual To disable manual redundancy set the sparing mode parameter to inactive If manual redundancy is currently in use setting the parameter to inactive causes the spare LIM to become inactive again terminating its connections and then reestablishing them on the primary LIM that was replaced For example suppose that the SDSL LIM in slot 4 fails see Figure 2 1 To enable ...

Page 39: ... though the physical port switchover is successful Following is a listing of an Auto LIM Sparing Config subprofile with all parameters set to their default values in LIM SPARING CONFIG auto lim sparing config lim sparing config 1 active yes error averaging period 10 error threshold 100 up down threshold 3 modem failure threshold 12 Parameter Specifies active When redundancy mode is set to automati...

Page 40: ... Sparing Config subprofile for the LIM in slot 1 Note that the active parameter is set to yes Because this is the default value for all seven slots you do not have to set it unless you have previously changed it 2 Set the redundancy mode admin list in LIM SPARING CONFIG shelf 1 slot 15 0 physical address shelf 1 slot 15 0 spare slot type sdsl atm card sparing mode inactive spare slot number slot 1...

Page 41: ...PM Rs or LPM RPs installed in the slots behind or next to them When the profile is created the software automatically assigns a value to the spare slot type and spare slot number parameters For example if a Stinger has an SDSL LIM and an IRM installed in slot 16 and it also has an SDSL LIM with an LPM R installed in slot 4 you must first create a LIM Sparing Config profile for slot 16 admin new li...

Page 42: ...ring state sparing none Parameter Indicates spare slot type Shelf slot and port number of the spare LIM sparing mode State of the redundancy function If redundancy is not enabled sparing none is the value If redundancy is enabled and the LIM slot is a primary LIM the value can be primary active or primary inactive If redundancy is enabled and the LIM slot is the secondary spare LIM the value can b...

Page 43: ...PM 3 0 Empty IRM LPM 4 92 48 port Enhanced LPM 5 0 Empty IRM LPM 6 0 Empty IRM LPM 7 0 Empty IRM LPM 10 0 Empty IRM LPM 11 0 Empty IRM LPM 12 0 Empty IRM LPM 13 0 Empty IRM LPM 14 93 Path Selector Module PSM 15 0 Empty IRM LPM 16 94 Copper Loop Tester CLT Midplane sparing bus usage 4 4 3 2 1 8765 4321 0987 6543 2109 8765 4321 0987 6543 2109 8765 4321 XXXX XXXX XXXX XXXX XXXX XXXX Configuring LIM p...

Page 44: ...cular number at a time For example suppose port 1 on an SDSL LIM fails and is replaced As long as redundancy is active on that port no other failed SDSL or ADSL port 1 on that unit can be replaced by a spare LIM port For example port 2 on an ADSL LIM in slot 1 can be backed up by port 2 of the spare ADSL LIM in slot 14 A subsequent failure of port 6 on an SDSL LIM in slot 4 can be backed up by por...

Page 45: ... spare LIM port to become inactive again terminating its connections and then reestablishing them on the primary LIM port that was replaced For example suppose a Stinger FS is equipped with an ADSL LIM in slot 1 and an SDSL LIM in slot 4 Spare LIMs are located in slots 14 and 16 respectively Port 2 fails on the ADSL LIM and port 6 fails on the SDSL LIM To provide redundancy for these ports proceed...

Page 46: ... You can restart the process by resetting the system or by setting the sparing mode parameter to inactive and then back to automatic The parameters used for automatic LIM port redundancy are found in the Auto LIM Sparing Config subprofile of the LIM Sparing Config profile for the spare LIM of the same type For example suppose you want to set up automatic port redundancy for port 1 in an SDSL LIM i...

Page 47: ... manual sparing change time 309108872 sparing change counter 1 Parameter Indicates spare physical address Shelf slot and port number of spare LIM sparing state State of the redundancy function If redundancy is not enabled sparing none is the value If redundancy is enabled and the LIM slot is a primary LIM the value can be primary active or primary inactive If redundancy is enabled and the LIM slot...

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