Page 1 All Rights Reserved Produced in Canada Information is subject to change without notice. Nortel Networks reserves the right to make changes in design or components as progress in engineering and manufacturing may warrant. 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, and the radio interference regulations of Industry Canada.
Page 3 Page 3 of 236 Revision history October 2003 Standard 1.00. This document is a new NTP for Succession 3.0. It was created to support a restructuring of the Documentation Library, which resulted in the merging of multiple legacy NTPs. This new document consolidates information previously contained in the following legacy documents, now retired: •...
Page 4 Page 4 of 236 553-3001-182 Standard 1.00 October 2003...
Page 5: Table Of Contents
Page 5 of 236 Contents About this document ..... . . Subject ..........Applicable systems .
Page 6 Page 6 of 236 Contents Off-premises level adjustment methods ......Conference bridge ......Contents .
Page 7 Contents Page 7 of 236 Balance Impedance adjustment ....107 Contents ..........Introduction .
Page 8 Page 8 of 236 Contents Sidetone objective loudness rating ......Automatic Gain Control ........Handset volume reset .
Page 9 Contents Page 9 of 236 Frequency Response ........Input impedance and balance impedance .
Page 10 Page 10 of 236 Contents 553-3001-182 Standard 1.00 October 2003...
Page 11: About This Document
Page 11 of 236 About this document This document is a global document. Contact your system supplier or your Nortel Networks representative to verify that the hardware and software described are supported in your area. Subject This document is a guideline to assist in the installation of systems in North American and non-North American locations.
Page 12 Page 12 of 236 About this document • Meridian 1 Option 61C CP PII • Meridian 1 Option 81 • Meridian 1 Option 81C • Meridian 1 Option 81C CP PII • Succession 1000 • Succession 1000M Cabinet • Succession 1000M Chassis •...
Page 13: Intended Audience
About this document Page 13 of 236 Table 1 Meridian 1 systems to Succession 1000M systems (Part 2 of 2) Maps to this This Meridian 1 system... Succession 1000M system Meridian 1 Option 81 Succession 1000M Multi Group Meridian 1 Option 81C Succession 1000M Multi Group Meridian 1 Option 81C CP PII Succession 1000M Multi Group...
Page 14: Related Information
Page 14 of 236 About this document The following systems are referred to generically as “Small System”: • Succession 1000M Chassis • Succession 1000M Cabinet • Meridian 1 Option 11C Chassis • Meridian 1 Option 11C Cabinet The following systems are referred to generically as “Large System”: •...
Page 15 IP Line: Description, Installation, and Operation (553-3001-365) • Software Input/Output: Maintenance (553-3001-511) Online To access Nortel Networks documentation online, click the Technical Documentation link under Support on the Nortel Networks home page: http://www.nortelnetworks.com/ CD-ROM To obtain Nortel Networks documentation on CD-ROM, contact your Nortel Networks customer representative.
Page 16 Page 16 of 236 About this document 553-3001-182 Standard 1.00 October 2003...
Page 17: Introduction To Loss And Level
Configuring the system to meet country-specific requirements occurs during installation. If changes to the transmission settings must occur after installation, contact a Nortel Networks transmission specialist to help with the changes. In the system, an algorithm called the Loss and Level Plan controls the port-to-port loss between two ports or the signal level at any given port, based on the port types involved in the connection.
Page 18 Page 18 of 236 Introduction to Loss and Level 553-3001-182 Standard 1.00 October 2003...
Page 19: Transmission Level Adjustment
Page 19 of 236 Transmission level adjustment Contents This section contains information on the following topics: Introduction ..........Line cards pads .
Page 20 Page 20 of 236 PBX. Pads can be applied in both the transmit and receive directions of a transmission path and the two pads are likely to be of different values. With Flexible IPE cards using B34 codecs, level adjustments are achieved by altering the card loss.
Page 21: Line Cards Pads
Transmission level adjustment Page 21 of 236 Pad values are predefined on the following: • North American and North American-based Intelligent Peripheral Equipment (IPE) • 1.5 Mbit Digital Trunk Interface (DTI)/Primary Rate Interface (PRI) if the GPRI package (167) is not equipped •...
Page 22 Page 22 of 236 Transmission level adjustment Non-B34-equipped XFALCs are not flexible and are static with respect to loss level settings. B34-equipped XFALCs are flexible (loss is defined in software) but static. Analog line cards in general are static. The XOPS is B34-equipped and is flexible. In OPS class of service, it sets loss dynamically.
Page 23 Transmission level adjustment Page 23 of 236 Table 2 Off-premises line cards and Loss and Level Plan feature interactions (Part 1 of 2) Dynamic Pad Static Loss Plan Dynamic Loss Switching (DPS) Download (SLPD) Switching Loss dynamically Not recommended. Not recommended. applied.
Page 24 Page 24 of 236 Transmission level adjustment Table 2 Off-premises line cards and Loss and Level Plan feature interactions (Part 2 of 2) Dynamic Pad Static Loss Plan Dynamic Loss Switching (DPS) Download (SLPD) Switching Not Applicable. Not Applicable. Loss statically applied except as follows: With China Toll package enabled, pad levels are...
Page 25 Transmission level adjustment Page 25 of 236 Table 3 Line cards and Loss and Level Plan feature interactions Dynamic Pad Static Loss Plan Dynamic Loss Switching (DPS) Download (SLPD) Switching Fixed loss on card, no Fixed loss on card. Fixed loss on card. pads.
Page 26 Page 26 of 236 Transmission level adjustment Table 3 Line cards and Loss and Level Plan feature interactions Dynamic Pad Static Loss Plan Dynamic Loss Switching (DPS) Download (SLPD) Switching Not Applicable. Loss value downloaded. Loss value downloaded. CLS SHL and LOL determine which loss CLS SHL and LOL value, either ALUS or...
Page 27: Conference Pads
Transmission level adjustment Page 27 of 236 Conference pads Conference bridge connections that involve three or more conferees that terminate on 2-wire ports have additional loss added. The additional loss compensates for the reflection caused by the 2-wire ports. The amount of loss is a function of the number of 2-wire ports and the type of port.
Page 28 Page 28 of 236 Transmission level adjustment Table 4 Cross-reference of transmission level adjustment features and markets Static Pad Static Loss Plan Dynamic Pad Dynamic Loss Download Downloading Switching Switching International International North America International countries that use countries that use and countries that countries that Static Loss Plans;...
Page 29: Balance Impedance
Transmission level adjustment Page 29 of 236 Table 5 Cross-reference of transmission level adjustment features and trunk cards (Continued) Static Loss Static Pad Plan Dynamic Pad Dynamic Loss Download Downloading Switching Switching Not applicable. Not applicable. Class of Service applicable. dependent China programmable...
Page 30: Terminating Impedance
Page 30 of 236 Transmission level adjustment network that ensures proper impedance matches when connecting to a four-wire interface. The 3COM impedance network ensures stability and eliminates echo caused by impedance mismatches. For IPE cards, this option is controlled by software configuration. Terminating Impedance Some analog trunk and the Extended Off-premises Station (XOPS) cards have Terminating Impedance options that ensure proper impedance matches...
Page 31 Transmission level adjustment Page 31 of 236 Public Exchange trunk interface to the same level as that of an analog 500/2500 type set connected to the same trunk interface. Transmission Parameters...
Page 32 Page 32 of 236 Transmission level adjustment 553-3001-182 Standard 1.00 October 2003...
Page 33: Off-Premises Stations
Page 33 of 236 Off-premises stations Contents This section contains information on the following topics: Introduction ..........Off-premises level adjustment methods .
Page 34 Page 34 of 236 Off-premises stations In Table 6, the first cell element is the originator’s state and the second cell element is the terminator’s state. Following are the state indicators: • 0 = no transmission level adjustment (pad out [pad not applied] or Base level loss).
Page 35 Off-premises stations Page 35 of 236 Administration The OPS unit’s transmission level adjustment is controlled by Class of Service (CLS) designation in LD 10. The CLS designations are shown in the table below. LD 10 — Class of Service designation Prompt Response Description...
Page 36 Page 36 of 236 Off-premises stations The XOPS unit’s transmission level adjustment is controlled by a combina- tion of CLS designation in LD 10 and hardware jumper settings. The CLS op- tions are shown in the following table. LD 10 — Class of Service designation (Part 1 of 2) Prompt Response Description...
Page 37 Off-premises stations Page 37 of 236 LD 10 — Class of Service designation (Part 2 of 2) Prompt Response Description TIMP (600) 900 Terminating impedance in ohms (not prompted for in Chinese Loss Plan) Prompted for XOPS units only (XOPS cards are identified by the fact that they are configured as Double Density cards on an octal density [Super] loop.
Page 38 Page 38 of 236 Off-premises stations Following are the card losses downloaded: Downloaded values Rx dBr Transmission Plan North American 9 3.5 17 - 0.5 China IPE 16 0.0 23 - 3.5 For information regarding the download parameters (Rx, Tx and dBr), refer to the section of this document titled “Static Loss Plan Downloading”...
Page 39 Off-premises stations Page 39 of 236 Table 7 XOPS software and hardware settings cross-reference for NT1R20 XOPS 0-1.5 >1.5-2.5 >2.5-3.0 0-1.5 >1.5-2.5 >2.5-4.5 >4.5-15 Loop loss (dB) JX.0 & JX.1 — OFF JX.0 & JX.1 – OFF JX.0 & JX.1 — ON Jumper settings TIMP...
Page 40 Page 40 of 236 Off-premises stations Table 8 is a cross-reference of software and hardware settings required for various installations: Table 8 XOPS software and hardware settings cross-reference for the Chinese NTRA06 XOPS On-premises station Off-premises station 0-600 ¾ 0-600 ¾ 601-2300 ¾...
Page 41: Conference Bridge
Page 41 of 236 Conference bridge Contents This section contains information on the following topics: Introduction ..........Pad switching methods .
Page 42: Alternative Conference Pads Selection
Page 42 of 236 Conference bridge In international marketplaces, the system uses the NT8D17 Extended Conference and Tone and Digit Switch (XCT) card and its associated software. This combination enables the user to select, by overlay input, either the software controlled conference pad switching algorithm or the insertion of a fixed loss for all conference calls.
Page 43 Conference bridge Page 43 of 236 Table 9 Default and alternative conference pads Number of Number of Pads (dB) trunks in stations in conference conference Default Alternative >=6 >=2 >=2 >=2 10.4 >=2 >=6 12.2 Transmission Parameters...
Page 44: Nt8D17 Options
Page 44 of 236 Conference bridge Alternative Conference Pads selection administration The responses to the APAD prompt in LD 15 determine the conference pads used for the customer. The input format for the APAD prompt is two fields that accept entries in the range 0 to 7. The first field is the Dynamic Pad Switching matrix identifier and the second field is the conference pads identifier.
Page 45 Conference bridge Page 45 of 236 Table 10 NT8D17 Loss insertion for conference connections THREE PORTS FOUR PORTS Loss A - B Loss B - A Loss A - B Loss B - A Connection (A-B) (dB) (dB) (dB) (dB) Line to line Line to CO trunk Line to TIE trunk...
Page 46 Page 46 of 236 Conference bridge Table 11 NT8D17 attenuation level switch settings SW2 settings Attenuation levels (dB) 12.2 10.4 The NT8D17 can operate in either A-Law or µ-Law companding mode. Jumper settings determine the companding mode to operate in. See Table 12. Table 12 NT8D17 companding option settings Companding...
Page 47 Conference bridge Page 47 of 236 hardware defined attenuation level for all conference calls. The following table outlines the valid responses to the CPAD prompt. LD 97 Prompt Response Description Modify data block. TYPE XCTP Extended Conference and Tone and digit switch parameters CPAD X = conference pad selection method identifier (0) to 1...
Page 48 Page 48 of 236 Conference bridge 553-3001-182 Standard 1.00 October 2003...
Page 49: Dynamic Pad Switching
Page 49 of 236 Dynamic Pad Switching Contents This section contains information on the following topics: Introduction ..........Dynamic Pad Switching overview .
Page 50: Dynamic Pad Switching Overview
Page 50 of 236 Dynamic Pad Switching DPS determines the pad state on a per-connection basis for the following: • North American and North American-based Intelligent Peripheral Equipment (IPE) trunks, with the exception of Chinese IPE where Dynamic Loss Switching is used for both ONS and OPS classes of service.
Page 51 Dynamic Pad Switching Page 51 of 236 Assignment of CLS VNL or non-VNL ensures stability and minimizes echo on long-haul connections, 4-wire TIE, and CCSA. Similarly, assignment of a non-VNL CLS applies to 2-wire TIE, COT, FEX, WAT, CCSA, and 4-wire non-VNL facilities.
Page 52: Alternative Loss Plan Overview
There are four elements: • originator’s receive pad state • originator’s transmit pad state • terminator’s receive pad state • terminator’s transmit pad state For more information on connection matrix details, consult a Nortel Networks transmission specialist. 553-3001-182 Standard 1.00 October 2003...
Page 53: Alternative Loss Plan Capabilities
Dynamic Pad Switching Page 53 of 236 The following table shows how to configure an XFCOT to perform like an XUT from a loss point of view. Table 13 XFCOT to XUT DPS matrix element mapping XFCOT XTRK TYPE SIGL XTRK TYPE XCOT...
Page 54: Administration
Page 54 of 236 Dynamic Pad Switching You can select an alternate conference pad switching algorithm with the North American conference pad switching algorithm being the default. The responses to the APAD prompt in LD 15 control which alternative conference pad switching algorithm is in use. When R2 Multi-Frequency Compelled Signalling on DTI 1.5 is activated, it does not support the Alternate Loss Plan.
Page 55: Alp Feature Administration
Dynamic Pad Switching Page 55 of 236 LD 14 Prompt Response Description NEW CHG Create or modify data block. TYPE Central office trunk XTRK XCOT Extended trunk type is Extended Central Office Trunk SIGL Signaling method on trunk is Loop Start SHL LOL Short Line Class of Service Long Line Class of Service...
Page 56: Hardware Requirements
Page 56 of 236 Dynamic Pad Switching Hardware requirements The following sections outline the hardware requirements. Dynamic Pad Switching All North American-based Intelligent Peripheral Equipment (IPE) trunks use Dynamic Pad Switching algorithms to determine which pads to select. • North American-based refers to XTRK = XUT or XEM in LD 14, except for China •...
Page 57: Static Pad Download
Page 57 of 236 Static Pad Download Contents This section contains information on the following topics: Introduction ..........Static Pad Download overview .
Page 58 Page 58 of 236 Static Pad Download Following are definitions of the various Classes of Service in an international context: • SHL (SHort Line) — transmission lines of relatively short length, low loss Pad in (pad applied) Applies to DID and COT trunks. •...
Page 59 Static Pad Download Page 59 of 236 • Pad out settings: For TYPE = DID and COT CLS = LOL or NTC For TYPE = TIE where XTRK = XFEM (LINK setting) CLS = NTC • Pad in settings: For TYPE = DID and COT CLS = SHL, TRC, or VNL For TYPE = TIE where XTRK = XFEM (TIE setting) CLS = TRC or VNL...
Page 60 Page 60 of 236 Static Pad Download 553-3001-182 Standard 1.00 October 2003...
Page 61: Static Loss Plan Downloading
Page 61 of 236 Static Loss Plan Downloading Contents This section contains information on the following topics: Introduction ..........Static Loss Plan Downloading overview .
Page 62 Page 62 of 236 Static Loss Plan Downloading • unit’s TYPE defined in LD 14 • unit’s signaling type defined in LD 14 • unit’s transmission characteristics Class of Service (CLS) defined in LD 14 SLPD introduces the use of pads on B34 equipped Extended Flexible Analog Line Card (XFALC) units.
Page 63: Relative Input/Output Level
Static Loss Plan Downloading Page 63 of 236 Table 14 B34 port types for all Loss Plans with the exception of China (Part 2 of 2) TYPE (unit type) SIGL (signaling) XTRK B34 Port Type PAGT none of the above XCOT COTS COTL...
Page 64: Loss Plan Selection
Page 64 of 236 Static Loss Plan Downloading The term card loss refers to the difference in signal power between the card interface point and the digital 0 dB reference point. Card loss is the sum of the loss designed into the circuitry plus the pad value selected. Relative Input/Output Levels for a card with an A/D card loss of 2.0 dB and a D/A loss of 6.5 dB would be •...
Page 65: Ipe Cards Transmission Adjustment Capabilities
Static Loss Plan Downloading Page 65 of 236 IPE cards transmission adjustment capabilities There are several versions of IPE cards currently in use. Refer to Table 15 for a brief summary on the versions and their transmission adjustment capabilities. Table 15 IPE cards transmission adjustment capabilities Static Pad Static Loss Plan...
Page 66: Relative Level Setting Download
Page 66 of 236 Static Loss Plan Downloading Relative Level setting download Downloading of the Input/Output Relative Level settings occurs • at system initialization for all units • when the card or unit is enabled • when the Extended Peripheral Equipment Controller (XPEC) is enabled •...
Page 67 Static Loss Plan Downloading Page 67 of 236 Table 16 LD 97 code to Relative Input/Output Level cross-reference Lines Trunks Lines Trunks Level Level Code (dBr) Code (dBr) Ð Ð - 2.0 Ð Ð Ð Ð Ð Ð - 2.5 Ð...
Page 68 Page 68 of 236 Static Loss Plan Downloading Configuration of the transmit (Tx) and receive (Rx) Relative Input/Output Levels for each port type is either automatic, i.e., the user selects a predefined SLPD table, or each port type has its level defined individually by going through the customization process in LD 97.
Page 69 Static Loss Plan Downloading Page 69 of 236 Table 17 Predefined Static Loss Plan Download tables Table 1 Table 2 Table 3 Austria and Greece Austria Belgium ETSI Existing ETSI Port Type COTS - 6.0 - 1.0 - 4.0 - 3.0 - 4.0 - 3.0 COTL...
Page 70 Page 70 of 236 Static Loss Plan Downloading Table 17 Predefined Static Loss Plan Download tables Table 4 Table 5 Table 6 Belgium Denmark Denmark Existing ETSI Existing Port Types COTS - 4.0 - 3.0 - 3.0 - 3.0 - 1.0 COTL - 6.0 - 1.0...
Page 71 Static Loss Plan Downloading Page 71 of 236 Table 17 Predefined Static Loss Plan Download tables Table 7 Table 8 Table 9 Finland Germany Italy ETSI ETSI/Existing ETSI Port Type COTS - 4.5 - 2.5 - 5.0 - 2.0 - 6.0 - 1.0 COTL - 4.5...
Page 72 Page 72 of 236 Static Loss Plan Downloading Table 17 Predefined Static Loss Plan Download tables Table 10 Table 11 Table 12 Italy Netherlands Netherlands Existing ETSI Existing Port Type COTS - 4.0 - 3.0 - 6.5 - 0.5 COTL - 6.0 - 1.0 - 6.5...
Page 73 Static Loss Plan Downloading Page 73 of 236 Table 17 Predefined Static Loss Plan Download tables Table 13 Table 14 Table 15 Norway Norway Portugal ETSI Existing ETSI Port Type COTS - 2.0 - 1.0 COTL - 4.0 - 2.0 DIDS - 2.0 - 1.0...
Page 74 Page 74 of 236 Static Loss Plan Downloading Table 17 Predefined Static Loss Plan Download tables Table 16 Table 17 Table 18 Greece and Portugal Spain Sweden Existing ETSI/Existing ETSI/Existing Port Type COTS - 4.0 - 3.0 - 2.0 COTL - 6.0 - 1.0 - 2.0...
Page 75 Static Loss Plan Downloading Page 75 of 236 Table 17 Predefined Static Loss Plan Download tables Table 19 Table 20 Table 21 Switzerland Switzerland ETSI Existing ETSI/Existing Port Type COTS - 2.5 - 4.0 - 2.0 COTL - 4.5 - 2.0 - 4.0 DIDS - 2.5...
Page 76 Page 76 of 236 Static Loss Plan Downloading Table 17 Predefined Static Loss Plan Download tables Table 22 Table 23 Table 24 France France New Zealand ETSI Existing Existing Port Type COTS - 5.0 - 6.0 - 3.0 - 4.0 - 6.0 COTL - 8.0...
Page 77 Static Loss Plan Downloading Page 77 of 236 Table 17 Predefined Static Loss Plan Download tables (continued) Table 25 Table 28 Australia Table 27 Existing China IPE only Port Type COTS - 7.0 - 1.5 - 2.0 - 4.0 - 3.0 COTL - 7.0 - 1.5...
Page 78 Page 78 of 236 Static Loss Plan Downloading When configuring or changing a table, the valid input ranges for Tx and Rx differ for lines and trunks. The valid ranges are • Rx for lines 0-31 • Tx for lines 8-39 •...
Page 79 Static Loss Plan Downloading Page 79 of 236 LD 97 — SLPD prompts and responses (Part 2 of 4) Prompt Response Description (STAT) Static Loss Plan table DYNM Dynamic Loss Switching table STYP Static Loss Plan Table to be used (PRED) Predefined table CSTM...
Page 80 Page 80 of 236 Static Loss Plan Downloading LD 97 — SLPD prompts and responses (Part 3 of 4) Prompt Response Description COTL COT long line 8-39 0-31 DIDS DID short line 8-39 0-31 DIDL DID long line 8-39 0-31 T2WT TIE 2-wire, CLS = TRC 8-39...
Page 81 Static Loss Plan Downloading Page 81 of 236 LD 97 — SLPD prompts and responses (Part 4 of 4) Prompt Response Description RANR RAN trunk 8-39 ALUS Analog Line Card unit CLS = SHL 0-31 8-39 ALUL Analog Line Card unit CLS = LOL 0-31 8-39 Transmission Parameters...
Page 82: Hardware Requirements
Page 82 of 236 Static Loss Plan Downloading Hardware requirements All Intelligent Peripheral Equipment (IPE) cards equipped with the B34 codec and “flexible” firmware support Static Loss Plan Downloading with the exception of Chinese IPE cards. Following is a list of cards, and their associated countries, that can use SLPD: NT5K02 XFALC with Message Waiting Australia...
Page 83 Static Loss Plan Downloading Page 83 of 236 NT5K90 XFCOT Denmark NT5K93 XFCOT Norway NT5K96 XFALC without Message Waiting Belgium Denmark Netherlands Italy Norway Sweden Switzerland NTCK18 XFCOT Italy NTCK22 XDID/TIE Italy Transmission Parameters...
Page 84 Page 84 of 236 Static Loss Plan Downloading 553-3001-182 Standard 1.00 October 2003...
Page 85: Dynamic Loss Switching
Page 85 of 236 Dynamic Loss Switching Contents This section contains information on the following topics: Introduction ..........Dynamic Loss Switching overview.
Page 86: Dynamic Loss Switching Overview
Page 86 of 236 Dynamic Loss Switching DLS is not supported on Three Wire Analog Trunks for the Commonwealth of Independent States. For B34-codec equipped IPE Analog Three Wire Trunk cards (X3W), the Static Loss Plan Downloading feature is used. Dynamic Loss Switching overview DLS enables per-connection level adjustments based on the port types involved.
Page 87: Static Loss Plan Download And Dynamic Loss Switching Inter Working
Dynamic Loss Switching Page 87 of 236 Static Loss Plan Download and Dynamic Loss Switching inter working If a system has both the Static Loss Plan Download (SLPD) and the DLS features equipped, then: • for IPE trunks, DLS takes precedence over SLPD; level adjustments are performed •...
Page 88 Page 88 of 236 Dynamic Loss Switching call types other than toll, the loss plan on the ONS card is static. For the OPS line card, the loss levels are downloaded on a per-call basis. The Toll Loss plan is supported only when an IPE Loss Plan for China is used, as defined by one of the following options: •...
Page 89 Dynamic Loss Switching Page 89 of 236 Table 18 Alternative Level (DLS) tables (Part 2 of 2) New Zealand Australia RANR Transmission Parameters...
Page 90 Page 90 of 236 Dynamic Loss Switching Table 18 Alternative Level (DLS) tables (continued) Italy TABLE 3 Port Type COTS -1.0 COTL -1.0 DIDS DIDL T2WT T2WN T2WV T4WT T4WN T4WV PAGT RANR 553-3001-182 Standard 1.00 October 2003...
Page 91: Ipe Trunk Card Transmission Adjustment Capabilities
Dynamic Loss Switching Page 91 of 236 Table 18 Alternative Level (DLS) tables (continued) China (systems with IPE only) TABLE 5 Port Type COTS - 3.5 COTL - 3.5 DIDS - 3.5 DIDL - 3.5 T2WT - 3.5 T2WN - 3.5 T2WV - 3.5 T4WT...
Page 92: Upgrade And New Installation Strategies
Page 92 of 236 Dynamic Loss Switching Table 19 IPE trunk card transmission adjustment capabilities Static Loss Dynamic Static Pad Plan Loss Download Download Switching Default Loss (SPD) (SLPD) (DLS) Setting country “flexible 7C” (SLPD and (DLS takes specific set DLS take precedence) by firmware...
Page 93 Dynamic Loss Switching Page 93 of 236 The configuration of levels is by port type; refer to Table 20 for the Chinese Loss Plan B34 port types and Table 20 for all other Loss Plan B34 port types. Table 20 B34 port types for Chinese Loss Plan TYPE (unit type) SIGL (signaling)
Page 94 Page 94 of 236 Dynamic Loss Switching Table 20 B34 port types for Chinese Loss Plan (Continued) TYPE (unit type) SIGL (signaling) XTRK B34 Port Type T2WT T2WN T2WV XDID T2WT EXUT, and T2WN T2WV none of the T4WT above none of the T4WN above...
Page 95 Dynamic Loss Switching Page 95 of 236 Table 20 B34 port types for Chinese Loss Plan (Continued) TYPE (unit type) SIGL (signaling) XTRK B34 Port Type none of the above XCOT COTS COTL XDID DIDS DIDL XFEM, and T4WT T4WN T4WV EXUT, and T4WT...
Page 96 Page 96 of 236 Dynamic Loss Switching Table 21 B34 port types for all other Loss Plans (Part 2 of 2) TYPE (unit type) SIGL (signaling) XTRK B34 Port Type EAM and LDR T2WT T2WN T2WV EM4, WR4, and T4WT none of the above T4WN T4WV...
Page 97 Dynamic Loss Switching Page 97 of 236 Table 22 LD 97 code to Relative Input/Output Level cross-reference Code Level (dBr) Code Level (dBr) Ð - 2.0 Ð Ð Ð - 2.5 Ð Ð Ð - 3.0 Ð Ð Ð - 3.5 Ð...
Page 98 Page 98 of 236 Dynamic Loss Switching To configure the Loss Plan manually, the user must define the Relative Input/ Output Levels for transmit (Tx) and receive (Rx) on a port type-by port-type basis. To configure the Loss Plan automatically, the user must select a predefined table number.
Page 99 Dynamic Loss Switching Page 99 of 236 LD 97 — DLS prompts and responses (Part 2 of 6) Prompt Response Description (PRED) Predefined table CSTM Customize Modify a table DISL Disable Dynamic Loss Switching ..The following is prompted when the response to TTYP is STAT and the response to STYP is DISL PWD2 Level 2 Administrator password as defined in LD 17...
Page 100 Page 100 of 236 Dynamic Loss Switching LD 97 — DLS prompts and responses (Part 3 of 6) Prompt Response Description The following are the prompts output if the response to STYP is CSTM or the response to DTYP is CSTM PWD2 Level 2 Administrator password as defined in LD 17 COTS...
Page 101 Dynamic Loss Switching Page 101 of 236 LD 97 — DLS prompts and responses (Part 4 of 6) Prompt Response Description T4WV RxTx TIE 4-wire, CLS = VNL 8-390-31 PAGT Paging trunk 0-31 Following are the prompts output if the response to STYP is DISL or the response to DTYP is DISL PWD2 Level 2 Administrator password as defined in LD 17...
Page 102 Page 102 of 236 Dynamic Loss Switching LD 97 — DLS prompts and responses (Part 5 of 6) Prompt Response Description T2WV RxTx TIE 2-wire, CLS = VNL 8-390-31 T4WT RxTx TIE 4-wire, CLS = TRC 8-390-31 T4WN RxTx TIE 4-wire, CLS = NTC 8-390-31 T4WV RxTx...
Page 103 Dynamic Loss Switching Page 103 of 236 LD 97 — DLS prompts and responses (Part 6 of 6) Prompt Response Description DIDS RxTx DID short line 8-390-31 DIDL RxTx DID long line 8-390-31 T2WT RxTx TIE 2-wire, CLS = TRC 8-390-31 T2WN RxTx...
Page 104 Page 104 of 236 Dynamic Loss Switching Table lists the LD 15 prompts and responses that are required to configure the LSCM for China: LD 15 — Chinese LSCM prompts and responses Prompt Response Description Modify data block. TYPE CUST APAD Alternate PAD Where:...
Page 105: Hardware Requirements
Dynamic Loss Switching Page 105 of 236 LD 73 — Define TOLT and TOLL pad levels prompts and responses (Part 2 of 2) Prompt Response Description TOLT Rx Tx Toll Call Pad data on DTI2 card. Default values 0 dB Receive, 0 dB Transmit (0)(0) (Valid range 0 –...
Page 106 Page 106 of 236 Dynamic Loss Switching 553-3001-182 Standard 1.00 October 2003...
Page 107: Balance Impedance Adjustment
Page 107 of 236 Balance Impedance adjustment Contents This section contains information on the following topics: Introduction ..........Administration .
Page 108 Page 108 of 236 Balance Impedance adjustment Hardware requirements Balance impedance adjustment is available on the following circuit cards: • NT5K90XFCOT Denmark • NTCK18XFCOT Italy • NTCK22XDID/TIE Italy 553-3001-182 Standard 1.00 October 2003...
Page 109: Digital Trunk And Primary Rate Interface
Page 109 of 236 Digital Trunk and Primary Rate Interface Contents This section contains information on the following topics: Introduction ..........Pad switching .
Page 110: Pad Switching
Page 110 of 236 Digital Trunk and Primary Rate Interface assignment of different pad values to different trunk types and customers. With the exception of the UK and Germany, most of Europe uses 0 dB pads on all digital trunks and connections. Pad switching For 2.0 Mbit DTI/PRI, switching of the loss value is on the receive and transmit side, depending on the port type involved in the connection.
Page 111 Digital Trunk and Primary Rate Interface Page 111 of 236 The trunk data block Class of Service (CLS) assignment characterizes the transmission properties of each trunk. The options in a North American context are: • Via Net Loss (VNL) • Non-VNL, either Transmission Compensated (TRC) or Non-Transmission Compensated (NTC)
Page 112 Page 112 of 236 Digital Trunk and Primary Rate Interface • TRC (Transmission Compensated) — transmission lines with compensation, low loss Pad in (pad applied) Applies to EAM, EM4 and WR4 TIE trunks. UK TIE setting • VNL (Via Network Loss) — no particular meaning in a European context, equivalent to TRC Pad in (pad applied)
Page 113: Administration
Digital Trunk and Primary Rate Interface Page 113 of 236 For digital Central Office trunk routes: • DCOdigital or combination CO trunk • DTOdigital or combination toll office trunk For 1.5 Mbit PRI TIE trunk routes: • PRI B-channel port classification •...
Page 114: Dti/Pri Pad Selection
Page 114 of 236 Digital Trunk and Primary Rate Interface The valid responses to the PCML prompt in LD 14 are shown in the table below. Prompt Response Description NEW CHG Create or modify a data block..PCML A MU A = DTI trunk using A-Law companding MU = DTI trunk using µ-Law companding If the response to PCML in LD 14 differs from the PCML setting in LD 17,...
Page 115 Digital Trunk and Primary Rate Interface Page 115 of 236 - 3.0 - 3.0 LD 73 enables changes to the receive (Rx) and transmit (Tx) pad codes for the different port types for all tables except Table 1. Pad code values are in the range 0-26.
Page 116: Ld 73 Pad Value Definition
Page 116 of 236 Digital Trunk and Primary Rate Interface Table 24 Pad code to pad value cross-reference (Part 2 of 2) CODE VALUE (dB) CODE VALUE (dB) CODE VALUE (dB) - 2.0 Idle - 3.0 DTI for the Commonwealth of Independent States (CDTI2) supports the same 16 different pad values as DTI2: 0, 1, 2, 3, 4, 5, 6, 8, 10, 15, 16, 17, 18, 20, 25, and 26.
Page 117: Uk 2.0 Mbit Dti/Pri Settings
Digital Trunk and Primary Rate Interface Page 117 of 236 LD 73 — Pad value definition prompts and responses (Part 2 of 2) Prompt Response Description Non-Transmission Compensated (Analog TIE) Transmission Compensated (Analog TIE) Pad value while DTR is connected (receive only). Via Net Loss (Analog TIE) SATT Analog Satellite TIE trunks...
Page 118 Page 118 of 236 Digital Trunk and Primary Rate Interface settings. The pad settings for all trunk types, in both the transmit and receive direction, are set at 3 dB. Table 25 German 2.0 Mbit DTI/PRI settings with GPRI package (167) Port Type Code...
Page 119: 1.5/2.0 Mbit Gateway
Page 119 of 236 1.5/2.0 Mbit Gateway Contents This section contains information on the following topics: Introduction ..........Overview .
Page 120: Pad Switching
Page 120 of 236 1.5/2.0 Mbit Gateway in LD 73 for the 1.5 Mbit DTI/PRI. In addition, the 1.5 Mbit DTI/PRI pad switching algorithm now requires the pads on analog trunks be switched in when the connection involves a 1.5 Mbit DTI/PRI. The default pad table (Table 1) in LD 73 meets current North American loss and level requirements when the 1.5/2.0 Mbit Gateway (GPRI) package (167) is equipped.
Page 121: 2.0 Mbit Dti/Pri
1.5/2.0 Mbit Gateway Page 121 of 236 2.0 Mbit DTI/PRI For 2.0 Mbit DTI/PRI, switching of loss values occurs in the receive and transmit directions. The applied losses depend on the port type involved in the connection with the 2.0 Mbit DTI/PRI. A trunk port involved in a connection with a 2.0 Mbit DTI/PRI trunk has its pad state set by the pad switching algorithm for that port type.
Page 122 Page 122 of 236 1.5/2.0 Mbit Gateway Assignment of CLS VNL or non-VNL ensures stability and minimizes echo on long-haul connections, 4-wire TIE, and CCSA. Similarly, assignment of a non-VNL CLS applies to 2-wire TIE, COT, FEX, WAT, CCSA, and 4-wire non-VNL facilities.
Page 123 1.5/2.0 Mbit Gateway Page 123 of 236 Following are the valid responses to the LD 16 PTYP prompt: For analog TIE trunk routes: • analog TIE trunk • AOT satellite PBX analog TIE trunks when PBX includes OPS set • satellite PBX TIE or ESN trunk For digital TIE trunk routes excluding 1.5 Mbit PRI routes: •...
Page 124: Loss Value Definition
Page 124 of 236 1.5/2.0 Mbit Gateway Loss value definition Following are the supported port types and input format for the pad values in LD 73 when the system disks include the 1.5/2.0 Mbit Gateway (GPRI) package (167) and TYPE = DTI/PRI/DTI2/PRI2. The default is the North American requirement.
Page 125: Administration
1.5/2.0 Mbit Gateway Page 125 of 236 Analog DID trunk 1.5 Mbit DTI/PRI trunk DSET Digital telephone BRIL Basic Rate Interface Line application BRIT Basic Rate Trunk application Administration Assignment of the pad category table occurs during the creation (NEW) or modification (CHG) of a trunk in LD 14.
Page 126: Ld 73 Pad Value Definition
Page 126 of 236 1.5/2.0 Mbit Gateway LD 73 pad value definition Definition of pad values is in response to the following LD 73 prompts. Output of these prompts occurs when FEAT = PAD: LD 73 — Pad value definition prompts and responses for 1.5 Mbit DTI and PRI (Part 1 of 2) Prompt Response...
Page 127 1.5/2.0 Mbit Gateway Page 127 of 236 LD 73 — Pad value definition prompts and responses for 1.5 Mbit DTI and PRI (Part 2 of 2) Prompt Response Description IPE Analog CO trunk Note: Prompted when GPRI is equipped IPE Analog TIE trunk Note: Prompted when GPRI is equipped BRIL Basic Rate Interface Line application...
Page 128 Page 128 of 236 1.5/2.0 Mbit Gateway LD 73 — Pad value definition prompts and responses for 2 Mbit DTI and PRI (Part 2 of 2) Prompt Response Description Via Net Loss (Analog TIE) Analog COT and WAT trunks Analog FEX trunk Analog DID trunks 1.5 Mbit Primary Rate Interface trunk DSET...
Page 129 1.5/2.0 Mbit Gateway Page 129 of 236 Table 27 2.0 Mbit DTI/PRI pad category table defaults (Part 2 of 2) - 3.0 DSET BRIL BRIT Table 28 1.5 Mbit DTI/PRI pad category table defaults Table 1 Rx PAD Rx PAD Port Type Rx code (dB)
Page 130: German 2.0 Mbit Dti/Pri Settings
Page 130 of 236 1.5/2.0 Mbit Gateway SATT PRI2 BRIL BRIT German 2.0 Mbit DTI/PRI settings See the same heading on page 130. 553-3001-182 Standard 1.00 October 2003...
Page 131: Basic Rate Interface Lines And Trunks
Page 131 of 236 Basic Rate Interface Lines and Trunks Contents This section contains information on the following topics: Introduction ..........Pad switching .
Page 132 Page 132 of 236 Basic Rate Interface Lines and Trunks Table 29 Port type determination for BRIL connections 2.0 Mbit DTI/ DATA Trunk Type LD 16 PTYP XTRK CALL Port Type 2.0 Mbit DTI/ COT, DID, FEX, WAT none of the above DATA OTHER...
Page 133: Port Type Definition
Basic Rate Interface Lines and Trunks Page 133 of 236 For BRIT, switching of loss values occurs in the receive and transmit directions. The applied losses depend on the port type involved in the connection with the BRIL. Port type definition The following criteria identify the port types involved in a connection: •...
Page 134 Page 134 of 236 Basic Rate Interface Lines and Trunks The options in an international context are • NTC (Non-Transmission Compensated) — transmission lines without compensation, high loss Pad out (pad not applied) Applies to EAM, EM4 and WR4 TIE trunks UK LINK setting •...
Page 135: Administration
Basic Rate Interface Lines and Trunks Page 135 of 236 For analog COT, FEX, DID WAT trunk routes: • ACO analog CO trunk • ATO analog toll office trunk For digital Central Office trunk routes: • DCO digital or combination CO trunk •...
Page 136: Ld 73 Pad Value Definition
Page 136 of 236 Basic Rate Interface Lines and Trunks Table 31 Pad code to pad value cross-reference CODE VALUE (dB) CODE VALUE (dB) CODE VALUE (dB) - 4.0 10.0 - 5.0 11.0 - 6.0 12.0 - 7.0 13.0 - 8.0 14.0 - 9.0 - 1.0...
Page 137 Basic Rate Interface Lines and Trunks Page 137 of 236 LD 73 — Pad value definition prompts and responses (Part 2 of 2) Prompt Response Description Non-Transmission Compensated (Analog TIE) Transmission Compensated (Analog TIE) Pad value while DTR is connected (receive only) Via Net Loss (Analog TIE) Analog COT and WAT trunks Analog FEX trunk...
Page 138 Page 138 of 236 Basic Rate Interface Lines and Trunks Table 32 shows the default pad code settings for BRIT. Table 32 Default BRIT pad category table Table 1 Port Type Code (dB) Code (dB) - 3.0 - 3.0 - 3.0 DSET BRIL BRIT...
Page 139: Meridian Modular Telephones
Page 139 of 236 Meridian Modular Telephones Contents This section contains information on the following topics: Introduction ..........Codec PCM companding law .
Page 140: Codec Pcm Companding Law
Page 140 of 236 Meridian Modular Telephones — handsfree transmit objective loudness rating (HTLR) — handsfree receive objective loudness rating (HRLR) — automatic gain control (AGCD) — handset volume reset (VOLR) Transmission parameters definition occurs in the Configuration Record (LD 17) and downloading to all Meridian Modular Telephones occurs after a system reload (SYSLOAD).
Page 141: Receive And Transmit Objective Loudness Rating
Meridian Modular Telephones Page 141 of 236 The companding law selected must agree with the companding laws defined by the following: For Intelligent Peripheral Equipment (IPE): LD 97 LD 97 Prompt Response Description Modify data block. TYPE SYSP System Parameters INTN YES NO YES = IPE is using A-law companding...
Page 142 Page 142 of 236 Meridian Modular Telephones Table 33 Receive and transmit transmission parameters (North America) Value for prompt ROLR or ROLR TOLR TOLR in LD17 +45.00 –45.00 +45.85 –44.50 +46.70 –44.50 +47.55 –44.00 +48.40 –43.50 +49.25 –43.00 +50.10 –43.00 +50.95 –42.50 +51.80...
Page 143: Administration
Meridian Modular Telephones Page 143 of 236 Definition of ROLR and TOLR are in terms of loss. For example • ROLR — If the ROLR of a telephone changes from + 45 dB to + 50 dB, there is 5 dB more loss and, consequently, the receive path is quieter.
Page 144 Page 144 of 236 Meridian Modular Telephones Table 34 Handset receive and transmit international transmission parameters Quieter LD 17 value Change from nominal LD 22 output ROLR (dB) TOLR (dB) ROLR (dB) TOLR (dB) 0.00 45.00 - 45.00 0.85 45.85 - 44.50 1.70 46.70...
Page 145 Meridian Modular Telephones Page 145 of 236 Table 35 Handset receive and transmit international transmission parameters Louder LD 17 val- Change from nominal LD 22 output ROLR TOLR ROLR TOLR (dB) (dB) (dB) (dB) 0.00 45.00 - 45.00 0.85 44.15 - 45.50 1.70 43.30...
Page 146 Page 146 of 236 Meridian Modular Telephones Table 36 Handsfree receive and transmit international transmission parameters Quieter LD 17 value Change from nominal LD 22 output HRLR HTLR HRLR HTLR (dB) (dB) (dB) (dB) 0.00 42.00 - 44.00 0.85 42.85 - 43.50 1.70 43.70...
Page 147: Sidetone Objective Loudness Rating
Meridian Modular Telephones Page 147 of 236 Table 37 Handsfree receive and transmit international transmission parameters Louder LD 17 value Change from nominal LD 22 output HRLR HTLR HRLR HTLR (dB) (dB) (dB) (dB) 0.00 42.00 - 44.00 0.85 41.15 - 44.50 1.70 40.30...
Page 148: Administration
Page 148 of 236 Meridian Modular Telephones Administration The recommended North American SOLR value is 12 dB. Table 38 lists the values accepted for LD 17 prompt SOLR. Table 38 Acceptable SOLR values North American International SOLR Loudness rating Loudness rating 7 dB 9 dB (default) 12 dB (default)
Page 149: Automatic Gain Control
Meridian Modular Telephones Page 149 of 236 Automatic Gain Control To keep the sound heard in the handset within a specified range, the Meridian Modular Telephones use an Automatic Gain Control (AGC) circuit. The AGC lowers the levels of sounds above and below the range. Lowering of loud sounds ensures they fit into the range, while lowering of soft sounds reduces background noise.
Page 150: Administration
Page 150 of 236 Meridian Modular Telephones Administration Handset volume reset settings: LD 17 LD 17 Prompt Response Description NEW CHG Create or modify a data block. TYPE Configuration ATRN Aries Transmission VOLR YES NO Yes = Handset volume reset enabled for all sets. No = Handset volume reset disabled for all sets.
Page 151 Meridian Modular Telephones Page 151 of 236 Table 39 Country-specific Meridian Modular Telephone settings (Part 2 of 2) Country CODE SOLR ROLR TOLR AGCD VOLR HRLR HTLR France Germany Holland Hong Kong Zealand Norway Sweden Switzer- land Transmission Parameters...
Page 152 Page 152 of 236 Meridian Modular Telephones 553-3001-182 Standard 1.00 October 2003...
Page 153: Transmission Characteristics-A-Law
Page 153 of 236 Transmission characteristics—A-Law Contents This section contains information on the following topics: Overview ..........Transmission characteristics for IPE.
Page 154: Overview
Page 154 of 236 Transmission characteristics—A-Law Overview There are two methods of converting signals from analog to digital or digital to analog: • µ-Law, used in North America and Japan • A-Law, used in most other areas of the world, including Europe Since systems are backwards compatible, various configurations are possible.
Page 155: Overload Level
Transmission characteristics—A-Law Page 155 of 236 Table 40 shows the minimum and maximum loss differences at significant frequency breakpoints for 2-wire and 4-wire interfaces. Table 40 Frequency response—A-Law 2-wire interface (dB) 4-wire interface (dB) Frequency (Hz) Minimum Maximum Minimum Maximum +5.0 +3.0 –0.5...
Page 156: Tracking Error (Gain Variation With Level)
Page 156 of 236 Transmission characteristics—A-Law decoding results from the equivalent of the digital milliwatt. Table 41 shows the overload levels in both the receive and the transmit directions. Table 41 Overload level—A-Law Overload level (dBm) Receive Transmit Type of circuit (analog to digital) (digital to analog) Line...
Page 157: Return Loss
Transmission characteristics—A-Law Page 157 of 236 Return loss Return loss at an impedance discontinuity in a transmission path is the ratio, in decibels, of the power level of an incident signal to the power level of the resulting reflected signal. Echo return loss (ERL) is a weighted average of the return loss values over the frequency range of 500 to 2500 Hz.
Page 158 Page 158 of 236 Transmission characteristics—A-Law Table 43 Return loss—in-service parameter values—A-Law (Part 2 of 2) Single-frequency return loss (dB) Connection Echo return loss (dB) (300–3200 Hz) Notes 2-wire trunk interfaces: 2-wire trunk side > 22 > 17 4-wire trunk side >...
Page 159 Transmission characteristics—A-Law Page 159 of 236 Table 44 Return loss—in-service attenuation—A-Law (Part 2 of 2) Single- Connection from 4-wire Echo frequency VNL tie trunk to: Circuit termination return loss return loss Notes 4-wire non-VNL tie trunk 600 ¾ + 2.16 µF at >...
Page 160: Idle Channel Noise
Page 160 of 236 Transmission characteristics—A-Law Idle channel noise Idle channel noise (noise in the absence of a signal) is the short-term, average, absolute noise power, measured with either psophometric weighting or 3000-Hz flat weighting, as shown in Table 45: •...
Page 161: Longitudinal Balance
Transmission characteristics—A-Law Page 161 of 236 Longitudinal balance Longitudinal balance (longitudinal to metallic), as shown in Table 46, defines the amount of metallic noise voltage (conductor to conductor) resulting from longitudinal voltage (conductor to ground) at the circuit input. The equation for calculating longitudinal-to-metallic balance is as follows: longitudinal balance (dB) = 20 log [Vs/Vm] Note: Vs is the disturbing longitudinal voltage, and Vm is the resulting...
Page 162: Quantization Distortion
Page 162 of 236 Transmission characteristics—A-Law Table 47 Crosstalk—A-Law Crosstalk attenuation Connection (dB) Line to line > 75 Line to trunk > 75 Trunk to trunk > 75 Quantization distortion Quantization distortion, shown in Table 48, is the distortion introduced when an analog signal is encoded to digital format, and then decoded to analog format.
Page 163: Envelope Delay
Transmission characteristics—A-Law Page 163 of 236 having a level greater than 35 dB below the power level of the composite input signal. Envelope delay Envelope delay in a system is the propagation time through the system of a low-frequency sinusoidal envelope of an amplitude-modulated sinusoidal carrier.
Page 164: Echo Path Delay
Page 164 of 236 Transmission characteristics—A-Law level is measured as the number of counts above 55 dBrnC during a five-minute interval, under fully loaded busy-hour PBX traffic conditions. Table 50 Impulse noise—A-Law Noise level (dBrnC) Counts 0 counts for 5 minutes Echo path delay Echo path delay, as shown in Table 51, is the maximum round-trip port-to-port delay for all frequencies in the 200–3400 Hz range.
Page 165: Transmission Characteristics For Pe
Transmission characteristics—A-Law Page 165 of 236 Spurious out-of-band Table 53 specifies the image signal level required for out-of-band frequencies as measured selectively at the output port. Table 53 Spurious out-of-band image signals—A-Law Image signal level Input signal (above 3–4 kHz) 0 dBm0 (300 Hz–3.4 kHz) <...
Page 166 Page 166 of 236 Transmission characteristics—A-Law 553-3001-182 Standard 1.00 October 2003...
Page 167: Transmission Characteristics-Μ-Law
Page 167 of 236 Transmission characteristics—µ-Law Contents This section contains information on the following topics: Transmission characteristics for IPE......Frequency response .
Page 168: Transmission Characteristics For Ipe
Page 168 of 236 Transmission characteristics—µ-Law Transmission characteristics for IPE Tables 55 through 68 provide the transmission characteristics for IPE. Frequency response Frequency response (attenuation distortion) at a given frequency is the difference between the loss at that frequency and the loss at 1000 Hz. Table 55 shows the minimum and maximum loss differences at significant frequency breakpoints for •...
Page 169: Tracking Error (Gain Variation With Level)
Transmission characteristics—µ-Law Page 169 of 236 Therefore, the overload level in the receive direction is defined as the analog signal level (at the port interface) with an average power that is 3 dB greater than that of the signal, which after encoding produces the equivalent of the digital milliwatt (PBX zero-level point).
Page 170 Page 170 of 236 Transmission characteristics—µ-Law Table 57 Tracking error (gain variation with level)—µ-Law Maximum tracking Average tracking Input signal error error (dBm0) (dB) (dB) 0 to –37 ± 0.5 ± 0.25 –37 to –50 ± 1.0 ± 0.5 Note: The input signal level is referenced to the zero relative power level (dBm0).
Page 171: Return Loss
Transmission characteristics—µ-Law Page 171 of 236 Return loss Return loss at an impedance discontinuity in a transmission path is the ratio, in decibels, of the power level of an incident signal to the power level of the resulting reflected signal. Echo return loss (ERL) is a weighted average of the return loss values over the frequency range of 500 to 2500 Hz.
Page 172 Page 172 of 236 Transmission characteristics—µ-Law Table 59 Return loss—in-service parameter values—µ-Law Single- frequency Connection from 4-wire Circuit Echo return return loss VNL tie trunk to: termination loss (dB) (dB) Notes 4-wire VNL tie trunk 4-wire legs of hybrid >27 >20 1, 3 terminated in 600 ¾...
Page 173: Transhybrid Loss
Transmission characteristics—µ-Law Page 173 of 236 Transhybrid loss Impedance mismatches between hybrid compromise networks and 2-wire terminations (line or trunk) can result in instability and listener echo degradations in the 4-wire switching path of a digital PBX. The echo return loss requirements presented in Tables 58 and 59 do not adequately address this problem.
Page 174 Page 174 of 236 Transmission characteristics—µ-Law 4-wire port. Table 60 Trans-hybrid loss—µ-Law Trans-hybrid loss (dB) Two-wire port 200 to 3400 Hz 500 to 2500 Hz Line >17 >19 Trunk >18 >21 553-3001-182 Standard 1.00 October 2003...
Page 175: Input Impedance
Transmission characteristics—µ-Law Page 175 of 236 Input impedance Input impedance (see Table 59) for a 2-wire port of a digital PBX is the impedance seen looking into the port from an external source. The requirements shown in Table 61 pertain to the minimum return loss of the port when •...
Page 176: Idle Channel Noise
Page 176 of 236 Transmission characteristics—µ-Law Idle channel noise Idle channel noise (noise in the absence of a signal) is the short-term, average, absolute noise power, measured with either C-message weighting or 3000 Hz flat weighting, as shown in Table 62. •...
Page 177: Longitudinal Balance
Transmission characteristics—µ-Law Page 177 of 236 Longitudinal balance Longitudinal balance (longitudinal to metallic), as shown in Table 63, defines the amount of metallic noise voltage (conductor to conductor) resulting from longitudinal voltage (conductor to ground) at the circuit input. The equation for calculating longitudinal-to-metallic balance is as follows: longitudinal balance (dB) = 20 log [Vs/Vm] Note: Vs is the disturbing longitudinal voltage, and Vm is the resulting...
Page 178: Quantization Distortion
Page 178 of 236 Transmission characteristics—µ-Law Table 64 Crosstalk—µ-Law Connection Minimum crosstalk attenuation (dB) Line to line > 75 Line to trunk > 75 Trunk to trunk > 75 Quantization distortion Quantization distortion is the distortion introduced when an analog signal is encoded to digital format, then decoded to analog format.
Page 179: Intermodulation Distortion
Transmission characteristics—µ-Law Page 179 of 236 Intermodulation distortion Intermodulation distortion is caused by nonlinearities present in the electric-to-electric transfer function of the PBX. This form of distortion primarily affects data transmission. Intermodulation distortion is measured by using the four-tone method that employs two pairs of equal-level tones transmitted at a total, composite power level of –13 dBm.
Page 180: Envelope Delay
Page 180 of 236 Transmission characteristics—µ-Law Envelope delay Envelope delay in a system is the propagation time through the system of a low-frequency sinusoidal envelope of an amplitude-modulated sinusoidal carrier. The carrier frequency is varied throughout the frequency range of interest to obtain the envelope delay as a function of frequency.
Page 181: Transmission Characteristics For Pe
Transmission characteristics—µ-Law Page 181 of 236 Echo path delay Echo path delay is the maximum round-trip port to port delay for all frequencies in the 200–3400 Hz range (see Table 68). Table 68 Echo path delay—µ-Law Path Analog to analog Analog to digital Digital to digital Transmission characteristics for PE...
Page 182: Return Loss
Page 182 of 236 Transmission characteristics—µ-Law Return loss The requirements for return loss of PE are the same as those for IPE (see Tables 58 and 59); however, the conditions for the requirements listed in Table 59 are modified as follows: •...
Page 183: Loss Plan
Page 183 of 236 Loss plan Contents This section contains information on the following topics: Introduction ..........Loss plan for µ-Law applications .
Page 184: Loss Plan For Μ-Law Applications
Page 184 of 236 Loss plan For insertion loss tests, both the signal source and the measurement instrument are terminated in 600 ohm. The reference signal source frequency is between 1000 Hz and 1020þHz for North America, and between 800 Hz and 820 Hz for most other locations.
Page 185: Trunk Options
Loss plan Page 185 of 236 Trunk options To accommodate specific network and facility characteristics, you can select various options for analog trunk ports. These options lead to variations in the loss plan as follows: • Transmission class of service (COS): Note: COS is the acronym used for transmission class of service in Electronic Industry Association (EIA) and Telecommunications Industry Association (TIA) standards.
Page 186: Loss Plan Specifications
Page 186 of 236 Loss plan Note: Facilities associated with the Nortel Networks Electronic Switched Network (ESN) offering for dialing features are recommended to be 4-wire for optimum transmission; thus, the 4-wire option is often referred to as the ESN option and the 2-wire as the non-ESN option. The presence or absence of the ESN package does not constrain the selection of the facility termination option.
Page 187 Loss plan Page 187 of 236 For simplicity, Tables 70 through 75 present the loss plan for system default settings as follows: IPE E&M tie trunk: VNL, 4-wire IPE LDR tie trunk: IPE satellite E&M tie trunk: TRC, 2-wire IPE CO (local) trunk: IPE TO (tandem or IC access) trunk: VNL PE E&M tie trunk: PE satellite tie trunk:...
Page 188 Page 188 of 236 Loss plan Note 1: The losses presented in Tables 70 through 6 for connections to, from, and between IPE analog line ports reflect a 2 dB reduction in the electrical loss in the transmission direction to the line card. This reduction is implemented in cards shipped after October 1991 to accommodate the longer station loops being installed in distributed customer environments.
Page 189 Loss plan Page 189 of 236 Tables 1 through 6 show the loss plan for line and trunk IPE port connections. Table 70 Electrical loss—IPE ports to IPE ports (Part 1 of 2) IPE port Analog Analog Digital ISDN 2W E&M 2W E&M 4W E&M (COS)
Page 190 Page 190 of 236 Loss plan Table 70 Electrical loss—IPE ports to IPE ports (Part 2 of 2) IPE port LDR tie LDR tie LDR tie CO/FX/ CO/FX/ Toll (COS) (NTC) (TRC) (VNL) WATS WATS office (NTC) (TRC) (VNL) Class** D/ONS A/TT A/TT...
Page 191 Loss plan Page 191 of 236 Table 71 Electrical loss—digital ports to IPE ports IPE port Analog Analog Digital ISDN E&M Satellite CO/FX/ Toll (COS) termina tie* tie* WATS office Class** D/ONS A/TT S/ATT A/CO A/TO ↑ ↓ ↑ ↓ ↑ ↓...
Page 192 Page 192 of 236 Loss plan Table 73 Electrical loss—IPE ports to PE ports PE port Analog Analog E&M tie* E&M E&M tie* CO/FX/ CO/FX/ CO/FX/ (COS) off-prem (NTC) tie* (VNL) WATS WATS WATS (TRC) (NTC) (TRC) (VNL) Class** A/TT A/TT A/TT A/CO...
Page 193 Loss plan Page 193 of 236 Table 74 Electrical loss—digital ports to PE ports PE port Analog set Analog E&M tie Satellite tie CO/FX/ Toll office (COS) OPSt WATS Class* A/TT S/ATT A/CO A/TO ↑ ↓ ↑ ↓ ↑ ↓ ↑...
Page 194 Page 194 of 236 Loss plan Table 75 Electrical loss—PE ports to PE ports PE port Analog Analog E&M tie E&M tie E&M tie CO/FX/ CO/FX/ Toll (COS) off-prem (NTC) (TRC) (VNL) WATS WATS office (NTC) (TRC) (VNL) Class* A/TT A/TT A/TT A/CO...
Page 195 Loss plan Page 195 of 236 Table 76 shows the loss tolerance for all of the connections in Tables 70 through 6. Table 76 Insert loss tolerance Type of connection Insertion loss tolerance (dB) Line to line ± 1.0 Line to analog trunk ±...
Page 196: Loss Plan For Conference Connections
Page 196 of 236 Loss plan Loss plan for conference connections When three or more conferees that terminate on 2-wire ports are connected through a conference bridge, the 2-wire terminations cause reflections that are compensated by added loss in the conference bridge. The added loss is a function of the number of 2-wire ports and the type of port.
Page 197: Loss Plan For A-Law Applications
Loss plan Page 197 of 236 Loss plan for A-Law applications The insertion loss values for connections between ports are location specific. If not modified for specific locations—for example, to meet approval requirements of a particular administration—the µ-Law loss plan applies. The insertion loss limits are listed in Table 76.
Page 198 Page 198 of 236 Loss plan 553-3001-182 Standard 1.00 October 2003...
Page 199: Transmission Parameters For Meridian Modular Telephones
Page 199 of 236 Transmission parameters for Meridian Modular Telephones Contents This section contains information on the following topics: Introduction ..........Receive and transmit objective loudness rating .
Page 200: Receive And Transmit Objective Loudness Rating
CO to the settings of analog 500/2500 type sets. Note that the North American loss and level plan assumes trunk losses of 3 to 4 dB to the CO. Contact your Nortel Networks representative for the recommended transmission parameters for countries not using the North American loss and level plan.
Page 201 Transmission parameters for Meridian Modular Telephones Page 201 of 236 International software ROLR and TOLR values are listed in Table 79. In addition, separate Handsfree receive (HRLR) and Handsfree transmit (HTLR) objective ratings can be defined. See Table 80. Transmission Parameters...
Page 202 Page 202 of 236 Transmission parameters for Meridian Modular Telephones Table 78 Receive and transmit transmission parameters (North America) Value for prompt ROLR or TOLR in LD17 ROLR TOLR +45.00 –45.00 +45.85 –44.50 +46.70 –44.50 +47.55 –44.00 +48.40 –43.50 +49.25 –43.00 +50.10 –43.00...
Page 203 Transmission parameters for Meridian Modular Telephones Page 203 of 236 Table 79 Handset receive and transmit transmission parameters (international) Quieter Louder Change from Change from nominal LD22 output nominal LD22 output LD17 LD17 value ROLR TOLR ROLR TOLR value ROLR TOLR ROLR TOLR...
Page 204 Page 204 of 236 Transmission parameters for Meridian Modular Telephones Table 80 Handsfree receive and transmit transmission parameters (international) Quieter Louder Change from Change from nominal LD22 output nominal LD22 output LD17 LD17 value HRLR HTLR HRLR HTLR value HRLR HTLR HRLR HTLR...
Page 205: Sidetone Objective Loudness Rating
Transmission parameters for Meridian Modular Telephones Page 205 of 236 Sidetone objective loudness rating Sidetone is provided by coupling a portion of the transmitted voice signal back to the telephone receiver. This enables you to hear your own voice, which provides a natural quality to the conversation. The value of the SOLR is a measure of the loss of sidetone.
Page 206 Page 206 of 236 Transmission parameters for Meridian Modular Telephones Note: The SOLR download is accepted by all Meridian Modular Telephones except the M2216ACD-1 and M2216ACD-2 telephones that have sidetone values fixed at the default level of 12 dB. 553-3001-182 Standard 1.00 October 2003...
Page 207: Small System Transmission Parameters
Page 207 of 236 Small system transmission parameters Contents This section contains information on the following topics: Introduction ..........Transmission A-Law and µ-Law.
Page 208: Introduction
Page 208 of 236 Small system transmission parameters Introduction Small systems accommodate two companding laws to convert signals from analog to digital and from digital to analog: • µ-Law that is used in North America and Japan. • A-Law that is used in most other areas of the world, including Europe. The following transmission specification applies to both standard µ-Law and A-Law cards.
Page 209 Small system transmission parameters Page 209 of 236 The insertion losses between various Intelligent Peripheral Equipment (IPE) ports are connection-specific in order to be compatible with end-to-end network connection loss requirements. The small system loss specifications are in agreement with North American standards, which are formulated to provide satisfactory end-to-end performance for connections within private networks and between private and public networks.
Page 210 Page 210 of 236 Small system transmission parameters Table 83 Insertion Loss from IPE Ports to IPE Ports (measured in dB) (Part 1 of 2) IPE Ports 500/2500 Line Digital 2/4 Wire E&M 4 Wire (ESN) CO/FX/WATS Line Trunk E&M Trunk Loop Tie Trunk IPE Ports...
Page 211 Small system transmission parameters Page 211 of 236 Table 83 Insertion Loss from IPE Ports to IPE Ports (measured in dB) (Part 2 of 2) IPE Ports CO/FX/WATS Loop Tie Trunk -3.5 -0.5 Table 84 Insertion Loss Digital Ports To IPE Ports (measured in dB) (Part 1 of 2) IPE Ports 500/2500 Digital...
Page 212 Page 212 of 236 Small system transmission parameters Table 84 Insertion Loss Digital Ports To IPE Ports (measured in dB) (Part 2 of 2) IPE Ports CO/FX/WATS Loop Tie Trunk -0.5 Toll Office (See note 2) -2.5 Primary Rate Interface (PRI) (See note 3) -2.5` Notes to Table 84...
Page 213 Small system transmission parameters Page 213 of 236 Table 85 Electrical loss Digital ports to Digital ports (measured in dB) (Part 1 of 2) Digital ports Tie Trunk Satellite Tie CO/FX/WATS Toll Office Primary Rate Trunk Loop Tie Trunk Interface (note 1) Trunk (note 2)
Page 214 Page 214 of 236 Small system transmission parameters Table 85 Electrical loss Digital ports to Digital ports (measured in dB) (Part 2 of 2) Digital ports Primary Rate Interface (PRI) (See note 3) Notes to Table 85 A satellite tie trunk connects a satellite or tributary PBX to a main PBX. A tributary PBX does not have its own directory number for incoming calls.
Page 215: Frequency Response
Small system transmission parameters Page 215 of 236 Table 86 Insertion loss limits for trunk and line connections (Part 2 of 2) Connection Insertion Loss Variation Limits (dB) Analog Trunk — Digital Trunk +0.7 Digital Trunk — Digital Trunk +0.2 Frequency Response Frequency Response, or Attenuation Distortion, at a given frequency is the difference between the loss at the test frequency and the loss at the reference...
Page 216: Input Impedance And Balance Impedance
Page 216 of 236 Small system transmission parameters Input impedance and balance impedance Input Impedance for a port is the impedance as seen looking into the port from the tip and ring. The Balance Impedance is the output source impedance of the port and is designed to match the impedance of the transmission line plus the far end trunk.
Page 217: Transhybrid Loss
Small system transmission parameters Page 217 of 236 Single Frequency Return Loss (SFRL) is the lowest value of return loss in the frequency range of 200 to 3200 Hz. The line or trunk undergoing testing is connected to a 4 wire E&M trunk, which is terminated with 600 OHMS.
Page 218: Idle Channel Noise
Page 218 of 236 Small system transmission parameters Table 90 Transhybrid loss Input Frequency (Hz) Transhybrid Return Loss (dB) 2500 3400 Idle Channel Noise Idle channel noise is noise in the absence of a signal. It is the short-term average absolute noise power, measured with either C-message weighting for µ−Law or Psophometric weighting for A-Law.
Page 219: Variation Of Gain Versus Level
Small system transmission parameters Page 219 of 236 dBm0 during a five minute interval, under fully loaded busy hour PBX traffic conditions. Table 92 Impulse Noise Time Level Counts 5 Minutes >55 dBmO Variation of gain versus level The variation of gain verses level (tracking error) measures how closely changes in input levels causes corresponding changes in output levels.
Page 220 Page 220 of 236 Small system transmission parameters Reference frequency: • 700 - 1100 Hz • 820 Hz A-Law • 1024 Hz µ-Law Table 94 Variation of gain versus level method 1 Input Level Gain Variation dBm0 -10 to +3 +/-0.5 Method 2 With a sine wave in the frequency range of 700-1100 Hz applied to the input...
Page 221: Total Distortion Including Quantization Distortion
Small system transmission parameters Page 221 of 236 Total distortion including quantization distortion The quantization distortion is the difference between the original analog signal and the analog signal (signal plus noise) resulting from the decoding process. There are two methods of measuring the quantization distortion: Method 1 With a noise signal corresponding to CCITT recommendation 0.131 applied to the input interface, the total distortion measured at the output interface lies...
Page 222: Spurious In-Band Signal
Page 222 of 236 Small system transmission parameters Reference frequency: • 1020 Hz µ-Law • 820 or 420 Hz A-Law Table 97 Total distortion method 2 Input signal Analog — Analog Digital — Analog dBm0 -30 to 0 Spurious in-band signal When a sine wave signal in the range of 700-1100 Hz, at a level of 0 dBmO is applied to the input port, the output level (at any frequency other than that of the applied signal,) is less than -40 dBmO when measured selectively in...
Page 223: Group Delay
Small system transmission parameters Page 223 of 236 applied to the input, they do not create any 2f2-f1 intermodulation product greater than 35 dB below the power level of the input signal. Group Delay Absolute group delay The absolute group delay is the minimum group delay measured in the frequency band 500-2800 Hz.
Page 224: Longitudinal Balance
Page 224 of 236 Small system transmission parameters Longitudinal balance Longitudinal balance defines the amount of impedance balance that exists between the tip and ring conductor with respect to ground. Longitudinal balance is measured by injecting a longitudinal signal on the tip and ring conductors with respect to ground and measuring the amount of signal (noise) that is introduced between the tip and ring.
Page 225 Small system transmission parameters Page 225 of 236 Test Source: Frequency 200-3200 Hz 0 dBmO. Table 101 Crosstalk Minimum Attenuation Design Objective Connection type dBm0 dBm0 Line — Line >65 >75 Line — Trunk >65 >75 Trunk — Trunk >65 >75 Transmission Parameters...
Page 226 Page 226 of 236 Small system transmission parameters 553-3001-182 Standard 1.00 October 2003...
Page 227: Succession Transmission Parameters
Page 227 of 236 Succession transmission parameters Contents This section contains information on the following topics: Introduction ..........Voice Gateway port type.
Page 228: Voice Gateway Port Type
Analog Off Premise Station (telephone) Digital Station (telephone) DSET Nortel Networks Digital Station (Aries or Taurus telephone) Wide Area Network (IP connection) Digital Access Line – digital connection to a digital CO Foreign Exchange Office – analog connection to an analog CO Foreign Exchange Digital –...
Page 229: Default Loss Values For Succession Media Gateway
Succession transmission parameters Page 229 of 236 Table 103 Default Insertion Loss to WAN interface for North America (Part 2 of 2) WAN interface DSET The pads on OPS line card are set to pads in, then OPS line card has 0 dB Tx pad and 3 dB Rx pad.
Page 230 Page 230 of 236 Succession transmission parameters then the North America default loss plan applies to calls made through the LAN/WAN interface. Table 104 Succession Media Gateway Card Default Loss Values for North America Succession 1000 DTI/PRI Prompt Rx Code Tx Code Rx Pad Tx Pad...
Page 231: Loss Values For Voice Gateway Media Card (Other Countries)
Succession transmission parameters Page 231 of 236 Loss values for Voice Gateway Media Card (other countries) The loss values for the countries other than North America, require changes made to the Pad Category tables in LD 73. In LD 73 the prompt is the PDCA gate opener to Pad Category tables 1 to 16.
Page 232 Page 232 of 236 Succession transmission parameters Table 105 Succession 1000 Loss Values for Global Countries Australia Austria Belgium Denmark Succession 1000 DTI/ PRI Prompt Code Code Code Code Code Code Code Code DSET OPX* SDTT DCO* SATT PRI2 BRIL BRIT WRLS Note: * OPX and DCO do not apply for these countries.
Page 233 Succession transmission parameters Page 233 of 236 Table 106 Succession 1000 Loss Values for Global Countries France Germany Greece Italy Succession 1000 DTI/ PRI Prompt Code Code Code Code Code Code Code Code DSET OPX* SDTT DCO* SATT PRI2 BRIL BRIT WRLS Note: * OPX and DCO do not apply for these countries.
Page 234 Page 234 of 236 Succession transmission parameters Table 107 Succession 1000 Loss Values for Global Countries Norway Sweden Switzerland Succession 1000 DTI/ PRI Prompt Code Code Code Code Code Code Code Code DSET OPX* SDTT DCO* SATT PRI2 BRIL BRIT WRLS Note: * OPX and DCO do not apply for these countries.
Page 235 Succession transmission parameters Page 235 of 236 Table 108 Succession 1000 Loss Values for Global Countries New Zealand Succession 1000 DTI/PRI Prompt Rx Code Tx Code DSET OPX* SDTT DCO* SATT PRI2 BRIL BRIT WRLS Note: * OPX and DCO do not apply for these countries. Press <cr> for these prompts.
Page 236: Internet Telephone Loss Plan Adjustment
Page 236 of 236 Succession transmission parameters Internet Telephone loss plan adjustment Systems installed in the United Kingdom require the SLR of the Internet Telephone to be increased. For further details, refer to “Configure Loss Plan” in IP Line: Description, Installation, and Operation (553-3001-365). 553-3001-182 Standard 1.00 October 2003...
Page 238 Transmission Parameters Copyright © 2003 Nortel Networks All Rights Reserved Information is subject to change without notice. Nortel Networks reserves the right to make changes in design or components as progress in engineering and manufacturing may warrant. This equipment has been...

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