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1-4 Understanding the PCM30 line drawer

297-2101-504 Standard 02.01 December 1991

Figure 1-2xxx
Provision of exchange lines from a PRLCM

Loop calling

Disconnect clear

Earth calling

PRLCM

with PCM30

line drawer

PCM30 link

(2Mbps)

DC5A calling

DC5A calling

Analog exchange

lines

PBX

PBX

PBX

PBX

Loop calling

CTE

(Type 1 MEL)

DMS-100

PLGC

N

E
T

W

O

R

K

Fiber

links

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Содержание DMS-100 Series

Страница 1: ...BCS33 and up Standard 02 01 December 1991 297 2101 504 DMS 100 Family PCM30 Line Drawer Maintenance Guide ...

Страница 2: ......

Страница 3: ...United States of America Information is subject to change without notice Northern Telecom reserves the right to make changes in design or components as progress in engineering and manufacturing may warrant DMS DMS SuperNode MAP and NT are trademarks of Northern Telecom Publication number 297 2101 504 Product release BCS33 and up Document release Standard 02 01 Date December 1991 ...

Страница 4: ... 504 Standard 02 01 December 1991 ii Publication history December 1991 BCS33 Standard 02 01 incorporate dual tone multifrequency DTMF outpulsing January 1991 BCS31 Standard 01 02 first release of this document ...

Страница 5: ...ng the PCM30 line drawer 1 1 Application of the PCM30 line drawer 1 2 Example of a PCM30 line drawer application 1 2 System configuration 1 5 How the PCM30 line drawer is configured 1 6 How the peripheral modules are configured 1 8 PCM30 line drawer maintenance 2 1 PCM30 line drawer maintenance description 2 2 Fault detection and isolation 2 2 Performing maintenance functions 2 3 Clearing drawer f...

Страница 6: ...ion of exchange lines from a PRLCM 1 4 Figure 1 3 PLD and DMS configuration 1 5 Figure 1 4 PCM30 line drawer 1 7 Figure 1 5 LCA shelf layout 1 9 Figure 1 6 LCE frame layout 1 11 Figure 1 7 PRLCM frame layout 1 12 List of procedures Replacing an NT6X27CA in a PLD 4 2 Replacing an NT6X54CA in a PLD 4 4 List of tables Table 2 1 PLD drawer states 2 2 ...

Страница 7: ...he document for example 01 01 The first two digits increase by one each time the document content is changed to support new BCS related developments For example the first release of a document is 01 01 and the next release of the document in a subsequent BCS is 02 01 The second two digits increase by one each time a document is revised and rereleased for the same BCS To determine which version of ...

Страница 8: ...on 297 2101 504 PCM30 Line Drawer Maintenance Guide Provides a set of procedures for maintaining the PLD including clearing alarms replacing cards and performing routine procedures The DMS 100 Family library is structured in numbered layers and each layer is associated with an NT product To understand PCM30 Line Drawer products you need documents from the following layers DMS 100 Family basic docu...

Страница 9: ...ins high voltage lines Do not open the front panel of the inverter unless fuses F1 F2 and F3 have been removed first Until these fuses are removed the high voltage lines inside the inverter are active and you risk being electrocuted WARNING Damage to backplane connector pins Use light thumb pressure to align the card with the connectors Next use the levers to seat the card into the connectors Fail...

Страница 10: ...The letters or numbers that the variable represents must be entered Each variable is explained in a list that follows the command string Responses Responses correspond to the MAP display and are shown in a different type Any active calls may be lost Please confirm YES or NO The following example illustrates the command syntax used in this document Step Action 1 Busy the P side link of the SMU by t...

Страница 11: ...drawer on page 1 2 describes the PLD and provides an example of its application System configuration on page 1 5 describes where the PLD fits into the DMS peripheral architecture How the PCM30 line drawer is configured on page 1 6 describes the physical configuration of the PLD How the peripheral modules are configured on page 1 8 describes the physical configuration of the host and remote line co...

Страница 12: ...rvices through an all digital network Services provided by the PLD range from direct access lines to centrex and automatic call distribution The PLD can also provide termination for key systems and private branch exchanges within the limits of the traffic capacity of the host LCM or the PRLCM and the signaling types provided by the PLD Example of a PCM30 line drawer application The PLD supports th...

Страница 13: ...S33 and up Figure 1 1xxx Provision of exchange lines from a host LCM Loop calling Disconnect clear Earth calling Host LCM with PCM30 line drawer DMS 100 PCM30 link 2Mbps DC5A calling DC5A calling PLGC N E T W O R K Analog exchange lines PBX PBX PBX PBX Loop calling CTE Type 1 MEL ...

Страница 14: ...991 Figure 1 2xxx Provision of exchange lines from a PRLCM Loop calling Disconnect clear Earth calling PRLCM with PCM30 line drawer PCM30 link 2Mbps DC5A calling DC5A calling Analog exchange lines PBX PBX PBX PBX Loop calling CTE Type 1 MEL DMS 100 PLGC N E T W O R K Fiber links ...

Страница 15: ...o 600 20 by 30 subscriber lines The host LCM then connects to the PCM30 line group controller PLGC through DS30A links a maximum of six links The PRLCM connects to the PLGC through PCM30 links Each PLGC supports a maximum of ten host LCMs or seven PRLCMs The PLGC in turn connects to the network module NM by a maximum of 16 DS30 links Figure 1 3xxx PLD and DMS configuration NM PLGC SLD LCM PRLCM PL...

Страница 16: ...onto the line equipment number of the logical standard line drawer Slots 0 and 16 are not used Within the PLD the upper part of the drawer is the even numbered subgroup and the lower part is the odd numbered subgroup Within the standard line drawer however the upper part of the drawer is the odd numbered subgroup and the lower part is the even numbered subgroup The bus interface card is located at...

Страница 17: ...e PCM30 line drawer 1 7 PCM30 Line Drawer Maintenance Guide BCS33 and up Figure 1 4xxx PCM30 line drawer 21 5 21 5 16 00 16 00 Drawer front To flexible cables 31 15 31 15 PCM30 interface card PIC Bus interface card BIC ...

Страница 18: ...el functions for example line scanning and ringing It contains two line concentrating array shelves NT6X0401 and each shelf consists of the following components one power converter card NT6X53AA one LCM processor card NT6X51AB one digroup control card NT6X52AA or NT6X52AB of release 6 or greater five line drawers either standard NT6X05AB or PCM30 NT6X05CA Note Verify that the printed circuit board...

Страница 19: ...tenance Guide BCS33 and up Figure 1 5xxx LCA shelf layout N T 6 X 5 3 A A N T 6 X 5 1 A B N T 6 X 5 2 A A N T 6 X 0 5 C A N T 6 X 0 5 C A N T 6 X 0 5 C A N T 6 X 0 5 C A Line drawers Digroup control card LCM processor card Power converter N T 6 X 0 5 C A 0 1 2 3 4 ...

Страница 20: ...equipment frame as shown in Figure 1 6 Within each PLD are two line subgroups or logical drawers The upper part of the drawer is the even numbered subgroup and the lower part is the odd numbered subgroup Within the standard line drawer however the upper part of the drawer is the odd numbered subgroup and the lower part is the even numbered subgroup Also included in the line concentrating equipment...

Страница 21: ...P LCM 1 LCM 0 LCA 1 LCA 0 LCA 1 LCA 0 N T 6 X 5 3 A A 10 LSG 11 N T 6 X 5 1 A B N T 6 X 5 2 A A 12 LSG 13 14 LSG 15 16 LSG 17 18 LSG 19 00 LSG 01 02 LSG 03 04 LSG 05 06 LSG 07 08 LSG 09 10 LSG 11 12 LSG 13 14 LSG 15 16 LSG 17 18 LSG 19 00 LSG 01 02 LSG 03 04 LSG 05 06 LSG 07 08 LSG 09 N T 6 X 5 3 A A N T 6 X 5 1 A B N T 6 X 5 2 A A N T 6 X 5 3 A A N T 6 X 5 1 A B N T 6 X 5 2 A A N T 6 X 5 3 A A N ...

Страница 22: ...of the PRLCM which consists of the following components one LCM that supports a maximum of ten PLDs one host interface equipment HIE one remote maintenance module one frame supervisory panel FSP Figure 1 7xxx PRLCM frame layout Baffle and fuse panel Baffle and fuse panel Baffle LCM LCA 1 LCA 0 HIE shelf Baffle Remote maintenance module FSP 10 LSG 11 12 LSG 13 14 LSG 15 16 LSG 17 18 LSG 19 00 LSG 0...

Страница 23: ...ows PCM30 line drawer maintenance description on page 2 2 describes the maintenance functions available for the PLD Fault detection and isolation on page 2 3 describes how faults are detected and isolated Performing maintenance functions on page 2 4 describes the maintenance functions that can be performed on the PLD and the level of the MAP terminal at which they are performed ...

Страница 24: ...that indicate the state of the PLD are similar to the codes for the SLD The codes are listed below with a brief description The state of a drawer is changed either automatically by the system or manually by inputting commands at the MAP terminal Log report PM181 is generated to indicate the state changes for example ManB from SysB Table 2 1xxx PLD drawer states Code Description dot The PLD is in s...

Страница 25: ...n for the hardware failure which can be one of the following BIC failure PIC failure Log report PM179 provides the reason for the link failure which can be any of the following PIC not equipped CARD OUT local loss of frame alignment LLFA local loss of multiframe alignment LLMA remote frame alignment indication RFAI remote multiframe alignment indication RMAI alarm indication signal AIS Once link a...

Страница 26: ...ne drawer at a time When the command return to service RTS or test TST is entered at the MAP terminal a hardware diagnostic test is performed on the specified drawer If the test fails log report PM181 is generated to provide the reason for the failure For more information on log reports refer to the PCM30 Line Drawer Planning Engineering and Administration Guide 297 2101 115 PLD line maintenance S...

Страница 27: ...ults If a card replacement is required refer to the Card replacement procedures chapter of this document The procedure in this chapter begins at the peripheral module PM level of the MAP terminal If you are not at this level get to the PM level from the command interpreter CI level of the MAP terminal by typing MAPCI MTC PM and pressing the Enter key ...

Страница 28: ......

Страница 29: ...er of LCMs have one or more faulty drawers An LCM that has one or more faulty drawers is in in service trouble ISTb Impact Lines in a drawer that is system busy S or manual busy M are line module busy LMB and subscribers are without service Common procedures None Action The following flowchart is a summary of this procedure Use the instructions in the step action table that follows the flowchart t...

Страница 30: ...1 Summary of clearing an LCM alarm Post ISTb LCM Determine drawer status Busy the drawer Is drawer system busy S Test the drawer Is drawer manual busy M Replace card Did test pass Return the drawer to service Contact next level of support Did drawer return to service End of procedure N Y N Y N Y Y N End ...

Страница 31: ...ct one on which to work 4 Post the selected LCM by typing POST LCM frame_no pair_no and pressing the Enter key where frame_no is the number of the frame that contains the LCM 0 to 511 pair_no is the number of the LCM in the frame 0 or 1 5 From the MAP display determine the status of the drawers Note The term drawer in this procedure refers to a line subgroup LSG Two LSGs make up one physical drawe...

Страница 32: ...typing BSY DRWR drwr_no and pressing the Enter key where drwr_no is the number of the LSG to be busied 0 to 19 7 Test the drawer by typing TST DRWR drwr_no and pressing the Enter key where drwr_no is the number of the LSG to be tested 0 to 19 If the TST command Do passed failed and a card list is generated failed and a card list is not generated step 8 step 10 step 14 continued ...

Страница 33: ...awer is in service passed and the drawer is in service but there are other drawers that are either system busy S or manual busy M failed and a card list is generated failed and a card list is not generated step 15 step 9 step 10 step 14 9 Repeat steps 5 to 8 for each LSG that is either system busy S or manual busy M 10 A card list is generated Record the locations and PECs including suffixes of th...

Страница 34: ...d and you have not replaced all the cards in the list recorded in step 9 failed and you have replaced all the cards in the list recorded in step 9 failed and a card list is not generated step 15 step 9 step 13 step 14 step 14 13 See the chapter titled Card replacement procedures in this document to replace the next card on the list and return to step 12 in this procedure 14 For further assistance ...

Страница 35: ...you are at the PM level peripheral module level of the MAP terminal If you are not at this level get to the PM level from the CI level command interpreter level of the MAP terminal by typing MAPCI MTC PM and pressing the Enter key When a card is replaced the following information must be noted in office records the serial number of the replaced card the date of replacement the reason for the repla...

Страница 36: ......

Страница 37: ... in a PCM30 line drawer PLD PEC Suffixes Name NT6X27 CA PCM30 interface card Common procedures None Action The following flowchart is a summary of this procedure Use the instructions in the step action table that follows the flowchart to perform the procedure NT6X27 in a PCM30 line drawer Card replacement procedures 4 3 ...

Страница 38: ...0 line drawer continued NT6X27 continued 297 2101 504 Standard 02 01 December 1991 Summary of replacing an NT6X27 in a PCM30 line drawer Referred from alarm procedure Replace the faulty card Return to alarm procedure Obtain a replacement card ...

Страница 39: ...handling data calls 1 Obtain a replacement card Ensure that the replacement card has the same product engineering code PEC including suffix as the card being removed At the MAP 2 Busy the drawer that contains the PCM30 interface card PIC to be replaced by typing BSY DRWR drwr_no and pressing the Enter key where drwr_no is the number of the LSG to be busied 0 to 19 Note The term drawer refers to a ...

Страница 40: ...he wrist strap grounding point of a frame supervisory panel FSP while handling circuit cards This protects the cards against damage caused by static electricity 3 Open the line drawer that you busied in step 2 4 Locate and remove the NT6X27 card and insert the replacement card 5 Close the line drawer 6 Return to the maintenance procedure that sent you to this procedure and continue as directed End...

Страница 41: ... in a PCM30 line drawer PLD PEC Suffixes Name NT6X54 CA bus interface card Common procedures None Action The following flowchart is a summary of this procedure Use the instructions in the step action table that follows the flowchart to perform the procedure NT6X54 in a PCM30 line drawer Card replacement procedures 4 7 ...

Страница 42: ...0 line drawer continued NT6X54 continued 297 2101 504 Standard 02 01 December 1991 Summary of replacing an NT6X54 in a PCM30 line drawer Referred from alarm procedure Replace the faulty card Return to alarm procedure Obtain a replacement card ...

Страница 43: ...ce card BIC to be replaced by typing BSY DRWR drwr_no and pressing the Enter key where drwr_no is the number of the LSG to be busied 0 to 19 Note The term drawer refers to a line subgroup LSG Two LSGs make up one physical drawer For example 0 and 1 are two LSGs in one physical drawer Both LSGs have to be busied to replace the bus interface card BIC At the shelf WARNING Static electricity damage We...

Страница 44: ... 504 Standard 02 01 December 1991 Replacing an NT6X54 in a PCM30 line drawer continued Step Action 6 Close the line drawer 7 Return to the maintenance procedure that sent you to this procedure and continue as directed End NT6X54 end in a PCM30 line drawer end Card replacement procedures 4 10 ...

Страница 45: ...iness telephone subscriber with direct inward dialing to extensions on the same system and direct outward dialing from all extensions Centrex switching equipment is normally located at the central office but it may be located on the operating company client s premises Consultative Committee on International Telephony and Telegraphy CCITT The Consultative Committee on International Telephony and Te...

Страница 46: ...and distributes the battery feed through subsidiary fuses and feeds to the shelves of the frame or bay in which it is mounted The FSP also contains alarm circuits LEN See Line equipment number LEN Line concentrating array LCA shelf An LCA shelf is a unit contained in a line concentrating module LCM It consists of a power converter an LCM processor card a digroup control card and a maximum of five ...

Страница 47: ... mainly serving business subscribers Meridian digital centrex MDC A special DMS business services package that utilizes the data handling capabilities of DMS 100 Family offices MDC provides a centralized telephone exchange service It was formerly known as integrated business network IBN Multiplexer MUX A multiplexer is a device that transmits two or more signals over the same transmission path or ...

Страница 48: ...ntain peripheral processors which perform local routines to relieve the load on the central processing unit Pulse code modulation PCM PCM represents an analog wave form by coding and quantifying periodic samples of the signal so that each element of information consists of a binary number that represents the value of the sample Remote line concentrating module RLCM An RLCM is an equipment frame th...

Страница 49: ......

Страница 50: ...e without notice Northern Telecom reserves the right to make changes in design or components as progress in engineering and manufacturing may warrant DMS DMS SuperNode MAP and NT are trademarks of Northern Telecom Publication number 297 2101 504 Product release BCS33 and up Document release Standard 02 01 Date December 1991 ...

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