Lucent Technologies 5ESS-2000 Quick user guide

5ESS®-2000 Switch
3B21D Computer Hardware Reference Manual
Document: 235-105-510
Issue Date: July 1999
Issue Number: 3.00A
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Copyright ©1999 Lucent Technologies, Inc. All Rights Reserved.
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between the copyright owner and the licensee to facilitate use by the licensee, but further distribution of the data is
prohibited.
For permission to reproduce or distribute, call:
1-888-LTINFO6 (1-888-584-6366) (From inside the continental United States)
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Notice
Every effort was made to ensure that the information in this IP was complete and accurate at the time of publication.
However, information is subject to change.
This IP describes certain hardware, software, features, and capabilities of Lucent Technologies products. This IP is
for information purposes; therefore, caution is advised that this IP may differ from any configuration currently
installed.
Lucent Technologies is the successor to the business and assets of AT&T Network Systems business unit.
Mandatory Customer Information
Interference Information: Part 15 of FCC Rules - Refer to the 5ESS®-2000 Switch Product Specification IP.
Trademarks
5ESS is a registered trademark of Lucent Technologies.
ESS is a trademark of Lucent Technologies.
Fastech is a registered trademark of Berg Technology, Inc.
Gandalf is a registered trademark of Mitel Corporation.
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Warranty
Warranty information applicable to the 5ESS®-2000 switch may be obtained from the Lucent Technologies Account
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The order number for this IP is 235-105-510. To order, call:
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1-888-LUCENT8 (1-888-582-3688) or fax to 1-800-566-9568 (From inside the continental United States)
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Acknowledgment
Developed by Lucent Technologies Customer Training and Information Products.
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1. INTRODUCTION
1.1 PURPOSE
This Hardware Reference Manual describes the 3B21D computer, providing both physical and functional
information. It is part of a documentation set that supports the 3B21D computer. See Section 10 for other Lucent
Technologies documents that support the 3B21D computer.
1.2 UPDATE INFORMATION
Along with other network switching products, the 5ESS®switch product line is being positioned to support Service
Net-2000 (SN-2000). Therefore, the name of the switch has been changed to 5ESS®-2000 switch. However, these
name changes have not been carried forward into software-influenced items, such as input/output messages,
Master Control Center screens, Recent Change/Verify screens, etc.
This manual is reissued to add information about the UN376E and UN597 circuit pac s, and is a complete update
for the 5E13 software release. And Chapter 4 was reorganized into three chapters. (See Section 1.3 DOCUMENT
ORGANIZATION.)
The Lucent Technologies Network Systems organization reserves the right to revise this document for any reason.
The reasons for revision will include, but are not limited to: conformity with standards declared by ANSI, the
Electronic Industrial Association (EIA), International Telecommunications Union-Telecommunications
Standardization Sector (ITU-T), International Telegraph and Telephone Consultative Committee (CCITT),
International Standards Organization (ISO), or similar agencies; advances in the state of the technical arts; or
changes in the requirements of communications systems or equipment.
1.3 DOCUMENT ORGANIZATION
This manual is organized into the following sections and reference information (Table of Contents, Glossary, and
Index). Specific topics are referenced in the "Table of Contents" and in the "Index" with page number locations. The
"Glossary" defines the terms used in this manual.
This manual provides physical and functional descriptions of the 3B21D computer. The remainder of this document
is organized into the following sections:
Section 2 , System Overview
Section 3 , 3B21D Computer Configurations
Section 4 , 3B21D Computer Physical Description
Section 5 , System Overview and Control Unit Functional Description CC
Section 6 , Control Unit Functional Descriptions MAS, MASU, DMA, DSCH, UC, and EX
Section 7 , Peripheral Device Functional Descriptions DFC, IOP, PC, and PSSDB
Section 8 , Storage and Peripheral Devices
Section 9 , Power Distribution and Control
Section 10 , Documentation Roadmap
Section 11 , System Specifications
Section 12 , Connector and Cabling Information
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Glossary
Index.
1.4 USER FEEDBACK
The producers of this manual are constantly striving to improve quality and usability. The user feedback form is
located after the front cover page. Please use it for your comments and to advise us of any errors. If the form is
missing or your comments will not fit, you can write to the following address:
Lucent Technologies
Documentation Services
2400 Reynolda Road
Winston-Salem, NC 27106
Please include the issue number and/or date of the manual, your complete mailing address, and telephone number.
We will answer all correspondence, informing you of the disposition of your comments.
See Support Telephone Numbers on the back of the front cover page of this document.
1.5 DISTRIBUTION
This manual is distributed by the Lucent Technologies Customer Information Center in Indianapolis, Indiana. Most
operating telephone companies should place orders through their documentation coordinator. Some companies may
allow customers to order directly from the Customer Information Center; however, the majority do not. Companies
that use documentation coordinators to manage their orders receive a significant discount.
Customers not represented by a documentation coordinator and Lucent employees can order the documentation for
the 5ESS®-2000 switch directly from the Lucent Technologies Customer Information Center. Proper billing
information must be provided. These orders may be mailed to the following address:
Lucent Technologies Customer Information Center
Order Entry
2855 N. Franklin Road
Indianapolis, IN 46219
See Ordering Information on the back of the front cover page of this document.
1.6 TECHNICAL ASSISTANCE
Technical assistance for the 5ESS®-2000 switch can be obtained by calling the North American Regional Technical
Assistance Center (NARTAC) at 1-800- 5-RTAC. This telephone number is monitored 24 hours a day, 7 days a
week. During regular business hours, your call is answered by your local NARTAC. Outside of normal business
hours, all calls are answered at a centralized Technical Assistance Center where service-affecting problems are
immediately dispatched to your local NARTAC. All other problems are referred to your local NARTAC on the next
regular business day.
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2. SYSTEM OVERVIEW
2.1 GENERAL DESCRIPTION
The 3B21D computer is a high-speed, high-reliability, fault-tolerant, duplex computer. It is a bit-compatible version of
the 3B20D computer, which is used in various roles in Lucent Technologies switching products. All major functional
units are duplicated to ensure uninterrupted and reliable service.
The hardware contains self-checking and error-correction circuitry. The software detects faulty processes and
equipment, reconfigures or reinitializes the system, and diagnoses and identifies faulty equipment.
2.2 APPLICATIONS
The 3B21D computer is used as the administrative module (AM) in the 5ESS®-2000 switch.
2.3 SYSTEM ARCHITECTURE
The high-level architecture of the 3B21D computer is similar to that of the 3B20D computer except for the addition of
Expansion (EX) slots in the 3B21D computer Control Unit (CU) complex, the maximum main store memory
configuration is increased from 64 MB to 128 MB (see Note), and the support of Small Computer System Interface
(SCSI) peripheral devices. The 3B21D computer hardware is packaged differently.
NOTE: The current maximum configuration of the main store memory is 128 MB; however, the system buses and
registers support a 28-bit address to accommodate a future main store memory maximum of 256 MB.
The advantages of the 3B21D computer are reduced floor space and higher reliability because of a reduction in
integrated circuits.
The 3B21D computer hardware consists of the following cabinets:
Basic processor cabinet
Growth cabinet (optional).
Figure 2-1 is a block diagram of the 3B21D computer.
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Figure 2-1 3B21D Computer System Block Diagram
2.3.1 Control Unit (CU)
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Each Control Unit (CU) consists of the following functions:
Central Control (CC)
Cache Storage Unit (CSU)
Main Store (MAS) and Main Store Update (MASU)
Direct Memory Access (DMA 0 and DMA 1)
Expansion Slots (EX 0 and EX 1)
Utility Circuit (UC).
Each Control Unit is half of the duplexed Central Processing Unit (CPU) system. The CC, MAS, UC, EX, and
input/output (I/O) functions are duplicated for reliability. Local control of the 3B21D computer for normal operation
and manual recovery procedures is via the Emergency Action Interface (EAI) to a Maintenance TTY (MTTY) and
Receive-Only Printer (ROP).
2.3.1.1 Central Control (CC)
The 3B21D Central Control (CC) is a microprogram-driven machine modeled after the 3B20D CC. The CC contains
the following functional subsystems:
Circuit pack identification capability
MicroController (MC)
MicroInstruction Store (MIS)
Maintenance Channel (MCH)
Emergency Action Interface (EAI)
Data Manipulation Unit (DMU)
Special Registers (SREGs)
Store Address Interface (SAI)
Store Data Interface (SDI)
Store Address Translator (SAT)
Cache Storage Unit (CSU)
Micro Level Test Set (MLTS) Interface.
2.3.1.2 Expansion Slots (EX 0 and EX 1)
The Expansion (EX) slots provide an interface for new (future) hardware features to access the MAS and CC via the
Central Control Input/Output (CCIO) bus and the Main Store Bus (MASB). Each CU has two EX slots, EX 0 and EX
1.
2.3.1.3 Utility Circuit (UC)
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The Utility Circuit (UC) is an optional function that monitors operations between the CC and the main memory
(cache or main store) for the purpose of program debugging and testing. One UC circuit pack (UN379) is optionally
equipped in each CU.
2.3.1.4 Cache Storage Unit (CSU)
The Cache Storage Unit (CSU) provides a small, high-speed CC cache memory for the most recently accessed
MAS words. The CC accesses the CSU concurrently with the MAS access on the MASB. The CSU is part of the CC
circuit pack (KLW31).
2.3.1.5 Main Store (MAS) and Main Store Update (MASU)
The Main Store (MAS) provides a minimum of 32 MB to a maximum of 256 MBs of Dynamic Random Access
Memory (DRAM). One MAS circuit pack (KLW32, KLW40, KLW48, KLW64, or KLW128) is equipped in each CU.
The same size MAS circuit pack is used in each CU. The KLW32 circuit pack is initially equipped with 32 MB of
DRAM. The KLW40 circuit pack is initially equipped with 40 MB of DRAM. The KLW48 circuit pack is initially
equipped with 48 MB of DRAM. The KLW64 circuit pack is initially equipped with 64 MB of DRAM. The KLW128
circuit pack is initially equipped with 128 MB of DRAM. Additional memory is added to a MAS circuit pack in either 8
MB or 32 MB increments. The addition of three 32-MB Single In-line Memory Modules (SIMMs) to a KLW32 circuit
pack provides a current maximum of 128 MBs of DRAM. Twenty eight bits of address is designed into the system
buses and registers for future expansion to 256 MB. Store data is 36 bits (32 data bits and 4 parity bits). However, in
the MAS circuit pack, store data is 39 bits wide (32 data bits and 7 parity/check bits). The MASs in both CUs are
kept coherent using the Update Bus. If control must be switched from the on-line processor to the other processor,
the contents of both the off-line memory and the on-line memory must be identical. If the MASs are not coherent, the
on-line processor must copy its data to the off-line MAS before the switch takes place.
2.3.1.6 Direct Memory Access (DMA)
The Direct Memory Access (DMA) provides peripheral devices access to the MAS via the MASB and provides the
CC access to the peripheral devices through the CCIO bus. Each DMA supports connections for a maximum of 16
peripheral devices.
Peripheral devices are connected to the DMA through the Dual Serial Channel (DSCH). These devices have a
dual-ported DSCH interface that allows them to communicate with either CU 0 or CU 1. Two DMA circuit packs
(KBN15s) can be equipped in each CU. DMA 0 is standard and DMA 1 is optional.
The relationship of peripheral devices to DMA 0 and DMA 1 is as follows:
DMA 0 and DMA 1 each provide four channels. DMA 0 supports channels 11, 12, 13, and 14. DMA 1 supports
channels 16, 17, 18, and 19.
Each channel supports four DSCH interfaces.
2.3.2 Peripheral Devices
Figure 2-1 shows three types of peripheral devices:
Input/Output Processor (IOP)
Disk File Controller (DFC)
Communications Module/Communications Network Interface (CM/CNI).
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The IOP provides connections to terminals, networks, and some tape devices. The DFC provides connection to
peripherals with SCSI interfaces, which include disk and tape drives. The third device, CM/CNI, represents
application peripheral hardware. The term "DFC" is not accurate since support is not limited to disk peripherals;
however, the nomenclature is retained from the 3B20D computer.
Note that the 3B21D computer differs from the 3B20D computer in that 9-track tape is an SCSI peripheral device
supported by the DFC in the 3B21D computer while it is supported by the IOP in the 3B20D computer. Also note that
3B21D computer DFC channel and device allocations differ from the 3B20D computer in that there are fewer
devices per channel.
2.3.2.1 DFC Equipped with UN373 and TN2116
The 3B21D computer can have three DFCs (DFC 0 through DFC 2). DFC 0 is equipped in the Processor Cabinet,
Processor Unit 0 at EQuipment Location (EQL) 28-170 and EQL 28-178. DFC 1 is equipped in the Processor
Cabinet, Processor Unit 1 at EQL 53-170 and EQL 53-178. DFC 2 is equipped in the Processor Cabinet, Growth
Unit at EQL 11-172 and EQL 11-180. Each DFC provides two SCSI buses (SBUS A and SBUS B). A maximum of
seven SCSI peripheral devices can be equipped on an SCSI bus. Therefore, each DFC can support a maximum of
14 SCSI devices. DFC 0 provides two SCSI buses, SBUS 0(A) and SBUS 2(B). DFC 1 provides two SCSI buses,
SBUS 1(A) and SBUS 3(B). DFC 2 provides two SCSI buses, SBUS 4(A) AND SBUS 6(B).
2.3.2.2 DFC Equipped with UN580
The 3B21D computer can have three DFCs (DFC 0 through DFC 2). DFC 0 is equipped in the Processor Cabinet,
Processor Unit 0 at EQL 28-178. DFC 1 is equipped in the Processor Cabinet, Processor Unit 1 at EQL 53-178.
DFC 2 is equipped in the Processor Cabinet, Growth Unit at EQL 11-180. Each DFC provides two SCSI buses
(SBUS A and SBUS B). A maximum of seven SCSI peripheral devices can be equipped on an SCSI bus. Therefore,
each DFC can support a maximum of 14 SCSI devices. DFC 0 provides two SCSI buses, SBUS 0(A) and SBUS
2(B). DFC 1 provides two SCSI buses, SBUS 1(A) and SBUS 3(B). DFC 2 provides two SCSI buses, SBUS 4(A)
and SBUS 6(B).
2.3.2.3 Input/Output Processor (IOP)
The 3B21D computer can have four IOPs (IOP 0 through IOP 3) equipped in the Processor Cabinet. IOP 0 is
equipped in Processor Unit 0 at EQL 19-065. IOP 1 is equipped in Processor Unit 1 at EQL 45-065. IOP 2 is
equipped in the Growth Unit at EQL 11-011. IOP 3 is equipped in the Growth Unit at EQL 62-011.
Functionally, an IOP can support four peripheral controller communities with each community supporting four
peripheral controllers. Therefore, 16 peripheral devices can be supported by an IOP. IOP 0 and IOP 1 are
exceptions. IOP 0 and IOP 1 each support up to 15 Peripheral Controller (PC) slots. IOP 2 and IOP 3 each support
up to 16 PC slots. The maximum number of available PC slots in a Processor Unit is 15; the maximum number of
available PC slots in a Growth Unit is 16.
For IOP 0 and IOP 1, peripheral community 0, slot 0 (PC00) is always equipped with a TN983, UN583, or UN597
MTTY Controller (MTTYC) circuit pack. Also, IOP 0 and IOP 1, peripheral community 0, slot 2 (PC02) is reserved for
a UN33D or UN933 Scanner and Signal Distributor circuit pack, which provides scan and signal distributor point
interfaces for the 3B21D computer.
2.3.3 Port Switch and Scanner-Distributor Buffer (PSSDB)
The Port Switch and Scanner-Distributor Buffer (PSSDB) switches the MTTY and the local receive-only printer
(ROP) between the MTTY Controller (MTTYC) circuit pack (TN983, UN583, or UN597) in IOP 0 and IOP 1. The
PSSDB also buffers the scanner and signal-distributor controller from non-3B21D computer circuits such as office
alarms, smoke detectors, and security monitoring devices. One port switch is equipped in Processor Unit 1. In the
3B21D computer, the PSSBD is located in CU 1. (Note that in the 3B20D computer, the PSSBD is located in CU 0.)
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