The following trademarks and service marks are used in this document:
� PERCEPTION®: registered trademark of Toshiba America Information Systems, Inc.
Toshiba America Information Systems, Inc. reserves the right to change any information in thisdocument, including but not limited to, product characteristics and operating specifications, withoutprior notice.
Table of ContentsPERCEPTION 4000 TABLE OF CONTENTS
SUBJECT PAGE
INTRODUCTIONPurpose................................................................................................................................. 1Organization.......................................................................................................................... 1How to Use This Guide ......................................................................................................... 1Supporting Documentation ................................................................................................... 1Warranty Information............................................................................................................. 2Parts Ordering Information.................................................................................................... 2Technical Assistance............................................................................................................. 2
ILLUSTRATED PARTS LISTPERCEPTION 4000 Digital PBX System ............................................................................. 4Top Unit ................................................................................................................................. 5Expansion Top Unit ............................................................................................................... 6Fan Unit................................................................................................................................. 7Modular Line/Trunk Unit ........................................................................................................ 9Common Control Unit ........................................................................................................... 12I/O Unit .................................................................................................................................. 14Expansion I/O Unit ................................................................................................................ 15Base Unit .............................................................................................................................. 16Line/Trunk Building Unit ........................................................................................................ 17Basic Standard Telephone Interface ..................................................................................... 18Extended Loop Standard Telephone Interface...................................................................... 19Electronic Telephone Interface.............................................................................................. 20Digital Key Telephone Interface............................................................................................. 21Digital Service Terminal Interface ......................................................................................... 22CO Ground/Loop Start Trunk Interface ................................................................................. 23Direct Inward Dialing Interface .............................................................................................. 24E & M Type 1 Trunk Interface ................................................................................................ 25E & M Type 2 Trunk Interface ................................................................................................ 26T1-DS1 Digital Trunk Interface.............................................................................................. 27ISDN Primary Rate Interface ................................................................................................ 28ISDN Primary Rate Interface Controller................................................................................ 29DTMF Signal Receiver Interface ........................................................................................... 30Message Waiting Power Unit ................................................................................................ 31Line/Trunk Power Supply Unit ............................................................................................... 32Hard Disk Drive Mount Unit .................................................................................................. 33Floppy Disk Drive Mount Unit................................................................................................ 34Main Central Processing Unit ............................................................................................... 35Local Central Processing Unit............................................................................................... 36Basic Time Switch................................................................................................................. 37Expansion Time Switch......................................................................................................... 38Disk Drive Control Circuit ...................................................................................................... 39Miscellaneous Control Circuitry ............................................................................................ 40Main Clock ............................................................................................................................ 41Redundant Clock................................................................................................................... 42Common Control Power Supply Unit..................................................................................... 43
PARTS AVAILABLE FOR PURCHASE.............................................................................................. 44
PART NUMBER INDEX......................................................................................................................... 47
i
PERCEPTION 4000 TABLE OF CONTENTS
FIGURE LIST
FIGURE TITLE PAGE1 PERCEPTION 4000 System Stack....................................................................................... 32 Top Unit ................................................................................................................................. 53 Expansion Top Unit ............................................................................................................... 64 Fan Unit................................................................................................................................. 75 Modular Line/Trunk Unit ........................................................................................................ 86 Common Control Unit............................................................................................................ 117 I/O Unit .................................................................................................................................. 148 Expansion I/O Unit ................................................................................................................ 159 Base Unit............................................................................................................................... 1610 LBIU Printed Circuit Card...................................................................................................... 1711 BSTI Printed Circuit Card...................................................................................................... 1812 XSTI Printed Circuit Card...................................................................................................... 1913 EKTI Printed Circuit Card...................................................................................................... 2014 DKTI Printed Circuit Card...................................................................................................... 2115 DSTI Printed Circuit Card...................................................................................................... 2216 COGI Printed Circuit Card..................................................................................................... 2317 DIDI Printed Circuit Card....................................................................................................... 2418 EM1I Printed Circuit Card ..................................................................................................... 2519 EM2I Printed Circuit Card ..................................................................................................... 2620 TTRI Printed Circuit Card...................................................................................................... 2721 IPRI Printed Circuit Card....................................................................................................... 2822 IPRC Printed Circuit Card ..................................................................................................... 2923 PBRC Printed Circuit Card.................................................................................................... 3024 MWPU Printed Circuit Card .................................................................................................. 3125 Line/Trunk Power Supply Unit ............................................................................................... 3226 Hard Disk Drive Mount Unit................................................................................................... 3327 Floppy Disk Drive Mount Unit................................................................................................ 3428 MCPU Printed Circuit Card ................................................................................................... 3529 LCPU Printed Circuit Card .................................................................................................... 3630 BTSW Printed Circuit Card ................................................................................................... 3731 ETSW Printed Circuit Card ................................................................................................... 3832 DDCC Printed Circuit Card ................................................................................................... 3933 MISC Printed Circuit Card..................................................................................................... 4034 MCLK Printed Circuit Card.................................................................................................... 4135 RCLK Printed Circuit Card .................................................................................................... 4236 Common Control Power Supply Unit..................................................................................... 43
ii
IntroductionPERCEPTION 4000 INTRODUCTION
PURPOSE
This manual identifies the replaceable system components and spareparts for the PERCEPTION® 4000 system.
ORGANIZATION
Information contained in this document is organized into four sections:
SECTION 1, INTRODUCTION—Identifies the purpose and organization ofthe PERCEPTION 4000 Installation Provisioning Manual, lists supportingdocumentation, and provides warranty and parts ordering information.
SECTION 2, ILLUSTRATED PARTS LIST—Provides l ist ings ofreplaceable parts and assemblies, keyed to exploded-view illustrations.
SECTION 3, PARTS AVAILABLE FOR PURCHASE—Provides a listing ofsystem components and spare parts that may be purchased.
SECTION 4, PART NUMBER INDEX—Provides an alphanumeric listing,by part number, of the parts and assemblies listed in Section 2.
HOW TO USE THIS GUIDE
The Illustrated Parts List is intended for use in the identification andrequisition of replaceable assemblies and parts. To successfully use theIllustrated Parts List, locate the part on the appropriate figure, note thenumerical item number of the part, find the item number in the associateddetailed parts list, and then compare the item number with the list of "PartsAvailable for Purchase" in Section 3.
SUPPORTING DOCUMENTATION
The following documents can be used to reference further informationrelated to replacement parts and procedures for the PERCEPTION 4000system:
INSTALLATION MANUAL—Explains the entire installation procedure forthe PERCEPTION 4000 system.
TROUBLESHOOTING MANUAL—Provides information for start-uptesting, troubleshooting, and parts replacement.
1
PERCEPTION 4000 INTRODUCTION
WARRANTY INFORMATION
Telecommunication products under warranty will be repaired or haveappropriate par ts replaced in accordance with Toshiba AmericaInformation Systems, Inc.'s (TAIS's) warranty, and TAIS's warranty repairguidelines as may be applicable.
TAIS warrants that new parts equipment listed in this manual (exceptfuses, lamps, and other consumables) will, upon delivery to a retailcustomer by TAIS or an authorized TAIS dealer, be free from defects inmaterial and workmanship for twelve (12) months after date of purchase.
Parts repaired while still under the 12-month warranty period will remainunder warranty for the balance of the original 12-month period, or forninety (90) days, whichever is longer.
Repaired equipment out-of-warranty carries a ninety (90) day warranty onthe part, assembly or component that was repaired.
The sole obligation of TAIS or Toshiba Corporation under these warrantypolicies, or under any other legal obligation with respect to such part,assembly or component, is to repair or replace such part, assembly orcomponent as is malfunctioning.
Telecommunication products for which the warranty period has expired orwhich are otherwise excluded or disqualified by the terms of TAIS'swarranty will be repaired at such prices as set forth in TAIS's standardpricing schedules for repairs. TAIS reserves the right, in its sole option, tochange such prices and such pricing schedules without notice.
Refer to the Installation Manual for more information on PERCEPTION4000 warranty policies.
PARTS ORDERING INFORMATION
After compiling your list of system components and spares from the "PartsAvailable for Purchase" list in Section 3, contact your Toshiba CustomerService/Suppor t Representative at (800) 234-4TSD for orderinginformation.
TECHNICAL ASSISTANCE
Technical assistance can be obtained from Toshiba America InformationSystems, Inc., Telecommunication Systems Division, Technical SupportDepartment, at (800) 777-4873.
2
Illustrated Parts ListPERCEPTION 4000 ILLUSTRATED PARTS LIST
Figure 1 PERCEPTION 4000 System Stack
3
TOSHIBA
1
2
3
3
3
3
4
5
6
PERCEPTION 4000 ILLUSTRATED PARTS LIST
4
Figure andItem Number Part Number Description Quantity Notes
1-
*
*
PERCEPTION 4000 Digital PBX SystemTOP UNIT
FAN UNITMLTU
CC UNIT
I/O UNIT
BASE UNIT
EXPAN TOP
EXPANSION I/O
REF11
AR
AR
1
121
1
BC,E
C,E
DA
A
123
4
5
6
7
8
NOTES:ABC
DE
AR*
Used on systems containing more than six MLTUs; installed in line/trunk stack only.Used on systems containing four or more MLTUs; installed in system stack only.Quantity depends on system configuration; a maximum of 10 MLTUs may be installed, six in the system stack and four in the line/trunk stack.Second base unit required only in systems containing more than six MLTUs; installed in line/trunk stack.Depending on system requirements for Message Waiting Power, system may be configured with eitherMLTUs or MLTU-1s (IMPORTANT NOTE: No system can be configured with both MLTUs and MLTU-1s).As required.Item not illustrated.
Top Unit (see Figure 2 for breakdown)Fan Unit (see Figure 4 for breakdown)Modular Line/Trunk Unit (MLTU) (see Figure 5 for breakdown)Modular Line/Trunk Unit (MLTU) (see Figure 5 for breakdown)Common Control Unit (see Figure 6 for breakdown)I/O Unit (see Figure 7 for breakdown)Base Unit (see Figure 9 for breakdown)Expansion Top Unit (see Figure 3 for breakdown)Expansion I/O Unit (see Figure 8 forbreakdown)
§
§
§
§
§
§
§
§
§
PERCEPTION 4000 ILLUSTRATED PARTS LIST
5
1
2
4
5
6
22
3
7
8
10
2
2
9
Figure andItem Number Part Number Description Quantity Notes
2- Top Unit27984245279746652797200327970007279792482798505927979245279792572797927327979270
REF1111414444
1 2 3 4 5 6 7 8 910
§ Front Panel§ Cam Lock§ Cam§ Top Cover§ Screw§ Rear Cover§ Screw§ Bolt§ Lockwasher§ Washer
PERCEPTION 4000 ILLUSTRATED PARTS LIST
6
22
23
2
2
5
1
4
6
7
8
10
9
8
10
9
Figure andItem Number Part Number Description Quantity Notes
3- Expansion Top Unit § Front Panel § Cam Lock § Cam § Top Cover § Screw § Rear Cover § Screw § Bolt § Lockwasher § Washer
Figure andItem Number Part Number Description Quantity Notes
5- Modular Line/Trunk Unit § Cam § Cam Lock § Right Hinge § Screw § Pin A § Screw § Lockwasher § Left Hinge § Pin B § Rear Cover § Screw § Screw § Right Side Panel § Left Side Panel § Bolt § Lockwasher § Washer
Figure andItem Number Part Number Description Quantity Notes
5-
§
§
§
§
§
§
§
§
§
§
§
§
§
§
§
§
§
LBIU
BSTI
XSTI
EKTI
DKTI
DSTI
COGI
DIDI
EM1I
EM2I
TTRI
IPRI
IPRC
PBRC
MPWU
LPWU
LPWU-1
REF
1
AR
AR
AR
AR
AR
AR
AR
AR
AR
AR
AR
AR
AR
1
1
1
A
B
B
B
B
B
B
B
B
B
B
B
B
B
C
C,E
D,E
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
NOTES:ABCDEAR
Unit must be duplicated for system redundancy.Quantity depends on system configuration.Unit used only with MLTU.Unit used only with MLTU-1.Unit can be duplicated for redundant power.As required.
Line/Trunk Building Unit (LBIU) (seeFigure 10 for breakdown)
Basic Standard Telephone Interface(BSTI) (see Figure 11 for breakdown)
Extended Loop Standard TelephoneInterface (XSTI) (see Figure 12 forbreakdown)
Electronic Telephone Interface (EKTI)(see Figure 13 for breakdown)
Digital Key Telephone Interface (DKTI)(see Figure 14 for breakdown)
Digital Service Terminal Interface (DSTI)(see Figure 15 for breakdown)
CO Ground/Loop Start TrunkInterface (COGI) (see Figure 16 forbreakdown)
Direct Inward Dialing Interface (DIDI)(see Figure 17 for breakdown)
E & M Type 1 Trunk Interface (EM1I)(see Figure 18 for breakdown)
E & M Type 2 Trunk Interface (EM2I)(see Figure 19 for breakdown)
T1-DS1 Digital Trunk Interface (TTRI)(see Figure 20 for breakdown)
ISDN Primary Rate Interface (IPRI)(see Figure 21 for breakdown)
ISDN Primary Rate Interface Controller(IPRC) (see Figure 22 for breakdown)
DTMF Signal Receiver Interface (PBRC)(see Figure 23 for breakdown)
Message Waiting Power Unit (MWPU)(see Figure 24 for breakdown)
Line/Trunk Power Supply Unit (LPWU)(see Figure 25 for breakdown)
Line/Trunk Power Supply Unit (LPWU-1)(see Figure 25 for breakdown)
PERCEPTION 4000 ILLUSTRATED PARTS LIST
11
10
16
18
17
13
4
14
11
8
7
6
4
2
415
12
10
6
7
43
5
19
2028
21
26 OR
27
~ 25
221
2
2
20
29
PERCEPTION 4000 ILLUSTRATED PARTS LIST
12
Figure andItem Number Part Number Description Quantity Notes
6- Common Control Unit § Cam § Cam Lock § Right Hinge § Screw § Pin A § Screw § Lockwasher § Left Hinge § Pin B § Rear Cover § Screw § Halter § Screw § Right Side Panel § Left Side Panel § Bolt § Lockwasher § Washer
Figure andItem Number Part Number Description Quantity Notes
6-
Hard Disk Drive Mount Unit (HDMU)(see Figure 26 for breakdown)
Floppy Disk Drive Mount Unit (FDMU)(see Figure 27 for breakdown)
Main Central Processing Unit (MCPU)(see Figure 28 for breakdown)
Local Central Processing Unit (LCPU)(see Figure 29 for breakdown)
Basic Time Switch (BTSW)(see Figure 30 for breakdown)
Expansion Time Switch (ETSW)(see Figure 31 for breakdown)
Disk Drive Control Circuit (DDCC)(see Figure 32 for breakdown)
Miscellaneous Control Circuitry (MISC)(see Figure 33 for breakdown)
Main Clock (MCLK) (see Figure 34 forbreakdown)
Redundant Clock (RCLK) (see Figure 35 for breakdown)
Common Control Power Supply Unit(PWSU) (see Figure 36 for breakdown)
HDMU
FDMU
MCPU
LCPU
BTSW
ETSW
DDCC
MISC
MCLK
RCLK
PWSU
REF
1
1
1
AR
1
1
1
1
1
1
1
A
A
A
A, B
A
A, C
A
D
E
A
19
20
21
22
23
24
25
26
27
28
29
§
§
§
§
§
§
§
§
§
§
§
NOTES:ABCD
E
AR
Unit must be duplicated in a redundant system.Quantity depends on system configuration.Required for systems with five or more MLTUs.Required for systems with T1, recommended for redundant systems (with or without T1) with integratedDIUs (ADIU-M1) or Stand-alone DIUs (ADIU-S1).Used instead of MCLK when a clock with a built-in backup T1 synchronization clock is desired; optional for a redundant system.As required.
PERCEPTION 4000 ILLUSTRATED PARTS LIST
14
4
5
6
2
1
3
57
89 25~
Figure andItem Number Part Number Description Quantity Notes
Figure andItem Number Part Number Description Quantity Notes
9-
Base Unit § Adjuster Foot § Locknut § Caster § Screw § Caster § Seismic Bracing Kit
2797466427979258279720012797926827972002SEISMIC MOUNT
REF
A
123456
NOTES:A Optional item.
442
1221
PERCEPTION 4000 ILLUSTRATED PARTS LIST
17
RDYALMLOOP BACK
LBIU
Figure Number Part Number Description Quantity Notes
10
NOTES:AB
Quantity depends on system configuration.Unit must be duplicated in a redundant system.
LBIU Line/Trunk Building Unit A B
PERCEPTION 4000 ILLUSTRATED PARTS LIST
18
RDY
ALM
0 ~ 15
BSTI
Figure Number Part Number Description Quantity Notes
11
NOTES:A Quantity depends on system configuration.
BSTI Basic Standard Telephone Interface A
PERCEPTION 4000 ILLUSTRATED PARTS LIST
19
RDY
ALM
0 ~ 7
XSTI
SW301 SW201 SW101 SW1
SW401 SW501 SW601 SW701
Figure Number Part Number Description Quantity Notes
12
NOTES:A Quantity depends on system configuration.
XSTI Extended Loop Standard Telephone Interface A
PERCEPTION 4000 ILLUSTRATED PARTS LIST
20
RDY
ALM
0 ~ 7
EKTI
1 2 3
START STOP
PJ8023 2 1
DSS EKT
PJ803
Figure Number Part Number Description Quantity Notes
13
NOTES:A Quantity depends on system configuration.
EKTI Electronic Telephone Interface A
PERCEPTION 4000
21
RDY
ALM
0 ~ 7
DKTI
Figure Number Part Number Description Quantity Notes
14
NOTES:A Quantity depends on system configuration.
DKTI Digital Key Telephone Interface A
PERCEPTION 4000
22
PERCEPTION 4000 ILLUSTRATED PARTS LIST
RDYALM
0 ~ 15
PJ251
1B 2B
1 2 3
DSTI
Figure Number Part Number Description Quantity Notes
15
NOTES:A Quantity depends on system configuration.
DSTI Digital Service Terminal Interface A
PERCEPTION 4000
23
PERCEPTION 4000 ILLUSTRATED PARTS LIST
RDYALM
0~7
COGI
PJ302 PJ202 PJ102 PJ2
PJ401PJ501PJ402PJ502PJ602PJ702
PJ601PJ701
PJ1PJ101PJ201PJ301
Figure Number Part Number Description Quantity Notes
16
NOTES:A Quantity depends on system configuration.
COGI CO Ground/Loop Start Trunk Interface A
PERCEPTION 4000
24
PERCEPTION 4000 ILLUSTRATED PARTS LIST
RDYALM
0 ~ 7
DIDI
PJ701 PJ601 PJ501 PJ401
PJ301 PJ201 PJ101 PJ1
3 2 1 0
4567
SW301 SW201 SW101 SW1
SW701 SW601 SW501 SW401
Figure Number Part Number Description Quantity Notes
17
NOTES:A Quantity depends on system configuration.
DIDI Direct Inward Dialing Interface A
PERCEPTION 4000
25
PERCEPTION 4000 ILLUSTRATED PARTS LIST
RDYALM
0 ~
7
EM1I
PJ302/PJ301 PJ202/PJ201 PJ102/PJ101 PJ2/PJ1
PJ305/PJ304/PJ303
PJ205/PJ204/PJ203
PJ105/PJ104/PJ103
PJ5/PJ4/PJ3
PJ403/PJ404/PJ405
PJ503/PJ504/PJ505
PJ603/PJ604/605
PJ703/PJ704/PJ705
PJ401/PJ402 PJ501/PJ502 PJ601/PJ602 PJ701/PJ702
3SW301
2SW201
1SW101
0SW1
4SW401
5SW501
6SW601
7SW701
Figure Number Part Number Description Quantity Notes
18
NOTES:A Quantity depends on system configuration.
EM1I E & M Type 1 Trunk Interface A
PERCEPTION 4000
26
PERCEPTION 4000 ILLUSTRATED PARTS LIST
RDY
ALM
0 ~ 5
EM21
PJ202 PJ201 PJ102 PJ101 PJ1 PJ2
PJ302 PJ301 PJ402 PJ401 PJ502 PJ501
2SW201
1SW101
0SW1
3SW301
4SW401
5SW501
Figure Number Part Number Description Quantity Notes
19
NOTES:A Quantity depends on system configuration.
EM2I E & M Type 2 Trunk Interface A
PERCEPTION 4000
27
PERCEPTION 4000 ILLUSTRATED PARTS LIST
TTRI
RDYALM
ACTV
CLKENRALMLALMTEST
PJ3
SW2
Figure Number Part Number Description Quantity Notes
20
NOTES:A Quantity depends on system configuration.
TTRI T1-DS1 Digital Trunk Interface A
PERCEPTION 4000
28
IPRI
RDYALM
ACTV
CLKENRALMLALMTEST
PJ3
SW2
Figure Number Part Number Description Quantity Notes
21
NOTES:A Quantity depends on system configuration; operates in conjunction with IPRC card.
IPRI ISDN Primary Rate Interface A
PERCEPTION 4000
29
RDYALM
IPRC
L3 BUSYL2 ALARM
PJ1
PJ2
PJ3
Figure Number Part Number Description Quantity Notes
22
NOTES:A Quantity depends on system configuration; operates in conjunction with IPRI card. Each IPRC card can
support up to two IPRI cards.
IPRC ISDN Primary Rate InterfaceController
A
PERCEPTION 4000
30
PERCEPTION 4000 ILLUSTRATED PARTS LIST
RDYALM
PBRC
Figure Number Part Number Description Quantity Notes
23
NOTES:A Quantity depends on system configuration.
PBRC DTMF Signal Receiver Interface A
PERCEPTION 4000
31
RDYALM
MWPU
OVLOCR
RESET
Figure Number Part Number Description Quantity Notes
24
NOTES:AB
Quantity depends on system configuration; a maximum of one MWPU may be installed in each MLTU.MWPU is not required with MLTU-1/LPWU-1.
MWPU Message Waiting Power Unit A B
Figure Number Part Number Description Quantity Notes
2525
NOTES:AB
CD
Each MLTU should have one LPWU.Unit can be duplicated for redundant power, regardless of whether system is configured as a single or redundant system.Unit used only with MLTU.Unit used only with MLTU-1.
LPWULPWU-1
Line/Trunk Power Supply UnitLine/Trunk Power Supply Unit
1/MLTU1/MLTU-1
A,B,CA,B,D
PERCEPTION 4000
32
PERCEPTION 4000 ILLUSTRATED PARTS LIST
POWERON
OFF
LPWU
RDY
ALM
RING ON
POWERON
OFF
LPWU-1
RDY
ALM
RING ON
PERCEPTION 4000
33
PERCEPTION 4000 ILLUSTRATED PARTS LIST
HDMU
SW3
SW2
SW1
JP
1 2
3 4
ACTIVITY INDICATOR
1 2
3 4
87
65
43
21
P4P3
1 2
3 4
JP6JP5
1 2 3 4
S1
Figure Number Part Number Description Quantity Notes
26
NOTES:A Unit must be duplicated in a redundant system.
HDMU Hard Disk Drive Mount Unit 1 A
PERCEPTION 4000
34
PERCEPTION 4000 ILLUSTRATED PARTS LIST
FDMU
ACTIVITY INDICATOR
P2
P3
Figure Number Part Number Description Quantity Notes
27
NOTES:A Unit must be duplicated in a redundant system .
FDMU Floppy Disk Drive Mount Unit 1 A
PERCEPTION 4000
35
PERCEPTION 4000 ILLUSTRATED PARTS LIST
RDYALMACTPH
MCPUPJ3
PJ2
SW2
PJ1
SW1
Figure Number Part Number Description Quantity Notes
28
NOTES:A Unit must be duplicated in a redundant system.
MCPU Main Central Processing Unit 1 A
PERCEPTION 4000
36
PERCEPTION 4000 ILLUSTRATED PARTS LIST
RDYALM
LCPU
PJ3
PJ1
PJ2
Figure Number Part Number Description Quantity Notes
29
NOTES:AB
Quantity depends on system configuration. Unit must be duplicated in a redundant system.
LCPU Local Central Processing Unit A B
PERCEPTION 4000
37
PERCEPTION 4000 ILLUSTRATED PARTS LIST
RDYALM
BTSW
PJ2
PJ4
PJ1
PJ3
Figure Number Part Number Description Quantity Notes
30
NOTES:A Unit must be duplicated in a redundant system.
BTSW Basic Time Switch 1 A
PERCEPTION 4000
38
PERCEPTION 4000 ILLUSTRATED PARTS LIST
RDY
ALM
ETSW
PJ2
PJ1
Figure Number Part Number Description Quantity Notes
31
NOTES:AB
Unit must be duplicated in a redundant system.Required for systems with five or more MLTUs.
ETSW Expansion Time Switch 1 A, B
PERCEPTION 4000
39
PERCEPTION 4000 ILLUSTRATED PARTS LIST
RDYALMBUS OFF
DDCC
PJ1
Figure Number Part Number Description Quantity Notes
32 DDCC Disk Drive Control Circuit 1 A
NOTES:A Unit must be duplicated in a redundant system.
PERCEPTION 4000
40
PERCEPTION 4000 ILLUSTRATED PARTS LIST
MISC
PJ1
SW2
RDYALMM/D BSY
MIS
C
SW1
Figure Number Part Number Description Quantity Notes
33 MISC Miscellaneous Control Circuitry 1
PERCEPTION 4000
41
PERCEPTION 4000 ILLUSTRATED PARTS LIST
RDYALMCKIALEAL0AL1
MCLK
PJ1
ON OFF
PJ2
PJ3
PJ21PJ23PJ25
PJ27
PJ13PJ15PJ17
PJ19
PJ5
PJ7PJ9
PJ11
Figure Number Part Number Description Quantity Notes
34
NOTES:A Used with T1 (if a built-in backup T1 synchronization clock is desired, use RCLK).
MCLK Main Clock 1 A
PERCEPTION 4000
42
PERCEPTION 4000 ILLUSTRATED PARTS LIST
RDYALMCKIALEAL0AL1
RCLK
PJ14
ON OFF
PJ15
PJ16P
J2P
J3P
J4P
J5
PJ6
PJ7
PJ8
PJ9
PJ10
PJ11
PJ12
PJ13
PJ17PJ18
PJ19
Figure Number Part Number Description Quantity Notes
35
NOTES:AB
Used with T1 when a backupT1 synchronization clock is desired. Used synonymously as MCLK2.
RCLK Redundant Clock 1 A, B
PERCEPTION 4000
43
PERCEPTION 4000 ILLUSTRATED PARTS LIST
POWERON
OFF
RING ON RDY
ALM
PWSU
Figure Number Part Number Description Quantity Notes
36 PWSU Common Control Power Supply Unit 1 A
NOTES:A Unit must be duplicated in a redundant system.
44
Parts Available for Purchase
27913656
27970007
27972001
27972002
27972003
27973036
27974664
27974665
27975330
27975331
27976036
27976037
27979243
27979244
27984245
27984246
27984247
27984248
27984249
27984250
27984251
27985059
27985060
27985061
27985062
27985063
BASE UNIT
BSTI
BTSW
CC UNIT
Fan (One Fan)
Top Unit Top Cover
Caster—4 Screw
Caster—2 Screw
Cam
Fan Guard
Adjuster Foot
Cam Lock
Common Control Unit Halter
I/O Unit Halter
Pin A
Pin B
Left Hinge
Right Hinge
Top Unit Front Panel
Fan Unit Front Panel
Modular Line/Trunk Unit Right Side Panel
Modular Line/Trunk Unit Left Side Panel
Common Control Unit Right Side Panel
Common Control Unit Left Side Panel
I/O Unit Front Panel
Top Unit Rear Cover
Fan Unit Rear Cover
Modular Line/Trunk Unit Rear Cover
Common Control Unit Rear Cover
I/O Unit Rear Cover
System Base Unit
Basic Standard Telephone Interface
Basic Time Switch
Common Control Unit
PART NUMBER DESCRIPTION
PERCEPTION 4000 PARTS AVAILABLE FOR PURCHASE
PERCEPTION 4000
45
PERCEPTION 4000 PARTS AVAILABLE FOR PURCHASE
COGI
DDCC
DIDI
DKTI
DSTI
EKTI
EM1I
EM2I
ETSW
EXPANSION I/O
EXPAN TOP
FAN UNIT
FDMU
FUSE KIT
HDMU
I/O UNIT
IPRC
IPRI
LBIU
LCPU
LPWU
LPWU-1
MCLK
MCPU
MISC
MLTU
MLTU-1
MWPU
CO Ground/Loop Start Trunk Interface
Disk Drive Control Circuit
Direct Inward Dial Trunk Interface
Digital Key Telephone Interface
Digital Service Terminal Interface
Electronic Telephone Interface
E&M Type 1 Trunk Interface
E&M Type 2 Trunk Interface
Expansion Time Switch
I/O Unit for Expansion Stack
Top Unit Without Display Panel
System Fan Unit
Floppy Disk Drive Mount Unit
Assortment of 15, 10, 5, 3, and 0.32A fuses
Hard Disk Drive Mount Unit
Input/Output Unit for System Stack
ISDN Primary Rate Interface Controller
ISDN Primary Rate Interface
Line/Trunk Building Unit
Local Central Processing Unit
Line/Trunk Power Supply Unit without built-in Message WaitingPower Unit (used with MLTU only)
Line/Trunk Power Supply Unit with built-in Message Waiting Power Unit (used with MLTU-1 only)
Main Clock (used with T1 for clock synchronization; used inredundant systems with DIUs, with or without T1)
Main Central Processing Unit
Miscellaneous Control Circuit
Modular Line/Trunk Unit (used with LPWU only)
Modular Line/Trunk Unit (used with LPWU-1 only)
Message Waiting Power Unit (used with MLTU/LPWU only; notrequired with MLTU-1/LPWU-1)
PART NUMBER DESCRIPTION
PERCEPTION 4000
46
PBRC
PWSU
RCLK
SEISMIC MOUNT
TOP UNIT
TTRI
XSTI
DTMF Signal Receiving Interface
Common Control Power Supply
Redundant Clock (used withT1; or in redundant systems with DIUs,with or without T1)
