The IBM 9750 Business Communications System (9750 BCS) is the
IBM business communications system solution for the future. It is
built around the evolutionary IBM 9751 Computerized Branch Exchange
(9751 CBX), which unifies IBM/ROLM's(2) CBX(1) product line to
provide voice and data support for installations with 100 to 20,000
lines. The advanced CBX architecture capitalizes on the 9751 CBX's
fully distributed multinode control system while more efficiently
using the capacity of the enhanced ROLMbus(1) 295E internal
architecture. The 9751 CBX incorporates the recently announced
9000AE processing unit, providing the high level of performance
necessary to meet requirements for current and future applications,
as well as enhanced connectivity and the additional applications that
will be made possible when ISDN becomes widely available. The 9751
CBX is Data Ready, providing as standard 16% of digital voice lines
equipped for data. Additionally, there is a 4% 'wired for' capacity
for computer ports.
A completely redesigned cabinet and power system, along with
major card density improvements, incorporate the latest advanced
technology in the 9751 CBX which results in reduced floor space,
power, and cooling requirements. System availability has been
enhanced by a new error detection and correction system, utilization
of new technology and a new power system. New fault tolerant models
are available, with redundancy standard in selected configurations.
Purchase Prices: Prices for configured systems will be
available through ROLM Systems Marketing Division marketing
representatives and authorized ROLM distributors.
Planned General Availability Date:
o Single node Models 020, 040, and 050 - November 1987
o Multinode Model 070 -- February 1988
o Remote Node Support -- First quarter 1989
Description Machine Model
Single node, non-redundant, 9751 020
standard configurations
Single node, non-redundant, 9751 040
fully configurable
Single node, redundant 9751 050
Multinode, redundant 9751 070
(1) Trademark of ROLM Corporation.
(2) Registered trademark of ROLM Corporation.

HIGHLIGHTS
o A Business Communications System that grows with your business,
supporting from 100 to 20,000 lines with both voice and data.
o Delivers performance for expanding applications requirements with
a 70% increase in traffic capacity (simultaneous conversations,
virtual non-blocking), using the enhanced ROLMbus 295E; and 7,500
to 11,000 BHCA/node using the 9000AE processor.
o Designed with IBM to meet the communications needs of the future
with advanced Network Management and Control; including a new
Enhanced Communications Processor (ECP), and Data Ready with
hardware capacity and data communications software.
o Extends ROLM's CBX II BCS architecture with new proprietary
technology and a new cabinet/power system.
o Improved system availability for customer applications provided
by the new Error Detection, Isolation and Correction System
(EDICS), remote diagnostics and optional additional fault
tolerance.
o Base for future ISDN Implementation.
DESCRIPTION
GROWS WITH YOUR BUSINESS
The 9750 BCS provides a business communications solution designed to
meet today's voice/data communications requirements, and is
positioned for continuous growth. The 9750 BCS is built around the
IBM 9751 Computerized Branch Exchange (CBX), and a wide range of
desktop products, networking products and applications, including the
new IBM 9755 Attendant Console (9755 ATC), CBX Attendant Directory
software, Asynchronous Rack Mount DataCom Module(ARMDCM), ROLM Call
Center Resource Manager, NetView/PC Rolm Alert Monitor Version 1.2
and NetView/PC ROLM Call Detail Collector Version 1.2 products, also
announced today.
9751 CBX MODEL 020: Provides the low cost digital voice and data CBX
to businesses that require from 100 to 720 lines. These are standard
pre-configured systems in one and two cabinet, non-redundant
configurations. The Model 020 is Data Active; installed with 16
fully equipped data lines and data devices (ROLMphone(2) 120Ds or
equivalent). A selection of five trunking options is available to
support voice and data. These include a combination of Central
Office Trunks, Direct Inward Dial Trunks, Tie-Line Trunks and T1
Links. The Model 020 will use the enhanced 9751 CBX software, with
Data Communications and Route Optimization features standard.
Satellite Operations III (SatOps III), ROLMnet, PhoneMail, Automated
Call Distribution (ACD) and Property Management System Interface
features are available as options.
9751 CBX MODEL 040: Provides additional customization and increased
capacity in non-redundant, single node configurations. The systems
are configurable and can grow from one to five cabinets, supporting
up to 2,000 lines with both voice and data.
9751 CBX MODEL 050: Supports the same number of lines as the Model
040, and provides additional fault tolerance with redundant Common
Control, Shared Electronics and optional power system redundancy.
9751 CBX MODEL 070: Provides multinode support for up to 15 nodes
and 20,000 lines with voice and data, for larger system requirements
or multiple locations. Communication between nodes in a multinode
network is provided by Control Packet Network II (CPN II), already
well established on the current ROLM CBX II 9000AE.
All models are Data Ready; every system is designed for 20%
data. This includes 16% of digital voice lines equipped for
originating data and 4% additional wired-for capacity for computer
ports. All systems are fully upgradable via the Moves, Adds and
Changes (MAC) process in order to provide the ability to add
interfaces, cabinets and nodes as required.
DELIVERS PERFORMANCE FOR EXPANDING APPLICATIONS REQUIREMENTS
All models of the 9751 CBX use the 9000AE processor. It provides the
processing power required for current and future applications. The
9751 CBX supports from 7,500 to 11,000 Busy Hour Call Attempts (BHCA)
for a single node, and from 58,000 to 165,000 BHCA for a 15 node
system. Utilizing an 8 khz sampling rate, the ROLMbus 295E (an
enhancement of the patented ROLMbus 295) delivers 70% more traffic
capacity (virtual non-blocking) when compared to the CBX II. This
allows up to 928 simultaneous conversations per node (virtual
non-blocking).
The 9751 CBX has the performance capability to support ISDN
applications.
The new cabinet with an improved power and cooling system and
an increase factor of 2.5 in average packing density, uses less
hardware to support a greater number of devices.
The 9751 CBX can support greater PhoneMail(2) capacity. The
9751 CBX supports up to three PhoneMail application processors (48
channels) per 9751 CBX node. A PhoneMail application processor can
support 600 subscribers with typical traffic assumptions, and will
support a maximum of 1,000 subscribers. Therefore, the 9751 CBX will
support 1,800 PhoneMail subscribers per node, on average. The
maximum subscriber capacity for a 128 channel PhoneMail system
remains at 8,000 subscribers. The PhoneMail Enhanced Voice Processor
(EVP) has been incorporated for all PhoneMail configurations with the
9751 CBX. The EVP provides automatic volume control, increased
message storage, and support for the PhoneMail Network.
In addition, the recently announced PhoneMail Release 3.6 Call
Processing provides a simple interface for answering internal and
external calls to the 9751 CBX and prompting callers to route
themselves to a desired destination, operator or information mailbox.
Benefits include improved customer satisfaction, easy information
distribution, 24-hour telephone assistance, more efficient use of
facilities, and potential personnel savings.
The 9751 CBX also supports enhancements to the Automatic Call
Distribution (ACD) system. On a single node system, or on a
multinode system with one node of ACD, up to 200 ACD agents will be
supported. The actual number of agents supported is a function of
several variables, such as call holding time and agent utilization.
Other ACD capacities for systems with a single ACD node include 50
ACD groups and 160 agents per group. There are up to 10
terminal/printer ports supported per ACD node.
Another ACD enhancement supported by the 9751 CBX is Dialed
Number Identification Service (DNIS). DNIS provides source
identification for calls which are transmitted over T1 or DID
facilities. ACD users will now be able to use the T1 or DID
facilities and display (on the ROLMphone 400 ACD agent set) the DNIS
number sent from the Central Office. This will give them the ability
to identify the source of the calling party, which is important for
ACD operations.
DESIGNED WITH IBM TO MEET THE COMMUNICATIONS NEEDS OF THE FUTURE
The 9751 CBX has been jointly designed by ROLM and IBM to anticipate
and meet the business communications needs of the future. A new 16
channel voice/data ROLMlink(1) Interface (RLI) card provides
integrated voice and data capability as a standard feature to each
desk. With this new interface, any voice connection to the desk is
capable of providing a data connection.
An Enhanced Communications Processor (ECP) has been
incorporated to off-load call processing requirements for fast data
call set-up and improved system performance. With the new ECP, the
user experiences uniform interactive set-up regardless of the data
load. The ECP also serves as the basis for future enhanced data
communications feature development.
NetView/PC, another product jointly developed by ROLM and IBM,
provides the support to manage voice networks and data transmission
over SNA and non-SNA networks, including non-IBM and non-ROLM
equipment. NetView/PC Rolm Alert Monitor, Version 1.2, also
announced today, has been enhanced to provide support for the 9751
CBX and ROLM's Redwood(2) System.
EXTENDS ROLM'S CBX II BCS ARCHITECTURE
The 9751 CBX cabinets incorporate advanced technology, including
CMOS, Application Specific Integrated Components, surface mount
technology and new modular power supplies. These changes result in
floorspace (including service area) savings of up to 60%, and power

and cooling savings of up to 50%, when compared to a CBX II system
with the same number of cabinets.
The new IBM 9755 Attendant Console, with a reduced footprint
and improved display, provides an enhanced tool for processing
incoming calls. Additional functionality is provided when it is used
with the new CBX Attendant Directory software package by providing
telephone number lookup and automatic dialing from a directory of up
to 8,000 individual listings and up to 1,000 departmental listings.
Many customers have already invested significantly in physical
cable plant and station equipment for current CBX systems. Since the
9751 CBX has mapped the CBX II architecture onto new technology,
current ROLM customers will find that much of their attached
equipment can be supported with the 9751 CBX.
CBX II systems can be included in a multiple location network
linked with Satellite Operations III (Sat Ops III) software. For
many users, Sat Ops will be the preferred method to support the 9751
CBX. For users who plan to utilize the 9751 CBX Remote Node support,
Sat Ops provides a viable alternative until Remote Node Support is
available.
IMPROVED AVAILABILITY FOR CUSTOMER APPLICATIONS
System availability has been improved for customer applications with
enhancements to both hardware and software. Models 050 and 070
provide Fault Tolerance -- system redundancy. System redundancy
includes Common Control components, ROLMbus 295E, Shared Electronics,
the Advanced Diagnostics Processor and the ECP. Redundant interface
power modules are available as an option per cabinet. The Model 070
also includes redundancy for Internode Links (INL), and Control
Packet Networking (CPN).
The new power system utilizes modular shelf power, isolating
the impact of power component problems to individual shelves.
Redundancy in the modular power supplies is available for both single
and multinode Models 050 and 070. This increased power supply
modularity and redundancy options for Common Control components and
Shared Electronics provide fault tolerance options with the 9751 CBX
to meet a wide range of system availability requirements.
An Advanced Diagnostic Processor continuously executes a wide
range of hardware diagnostic tests to ensure the system is operating
within specification. Problems can be identified and resolved before
they become apparent to the user. The Advanced Diagnostic Processor
is redundant on Models 050 and 070.
The Automatic Facilities Testing System is now standard. It
continuously tests the outside system trunking. This assists in the
isolation and diagnosis of communications problems which are not part
of the premises system, reducing the time necessary to isolate
problems.
CBX SYSTEM SOFTWARE, RELEASE 9004.3
The CBX System Software, Release 9004.3 is the latest step in a
series of continuous refinements and enhancements made to the ROLM
CBX II 9000 software base. The CBX System Software is based on a
modular architecture that consists of the following subsystems:
o The ROLM Operating System (OS) provides an efficient real-time,
multi-tasking environment for the CBX System Software.
o The Front-End Processor (FEP) provides the interface to all
station equipment hardware and buffers the Applications software
from the details of the hardware.
o Applications Programs provide the user with a full set of
features that range from simple voice and data connectivity to
advanced applications such as Call Detail Recording and Automatic
Call Distribution.
o The Error Detection, Isolation and Correction System (EDICS) is a
system-wide, multi-level diagnostics mechanism which continually
monitors the system for problems.
o The Configuration Subsystem is a data-base management system
providing user control over system parameters and application
features, and maintains integrity of the user data bases
supporting 9751 CBX customization.
The CBX System Software complements the 9751 CBX hardware
reliability and redundancy features to further enhance the overall
system availability for customer applications with the following
features:
o EDICS performs intelligent analysis of the errors reported by
scheduling specialized tests to narrow them down to a single
Field Replaceable Unit.
o The OS module provides a convenient user interface for local and
remote access to all system administration and maintenance
features.
o An Enhanced Patch Facility allows fixes to be made on a running
system without requiring down time for re-installation of the
software.
The CBX System Software also provides functions to facilitate
customer growth.
o Increasing lines on a single node requires only the addition of
extra interface hardware and the configuration of the associated
data bases.
o The SAT OPS III feature allows a growth capability beyond 15
nodes, where each 9751 CBX system acts as a switch in a Wide Area
Telecommunication Network. Sat Ops III also provides network
communications over a private network, including CBX II systems.
o The CNFG subsystem facilitates Moves, Adds and Changes (MAC) of
various system parameters and features for changing customer
needs through a user friendly interface.
o The modular design of the software allows customers to upgrade
easily to new applications as the need arises.
o For new customers, smooth and quicker system installations are
facilitated by the Designer Configuration process, which permits
the creation of extensive customer-specific system data-bases on
portable PCs, and Virtual Node Configuration, which allows
configuration of a complete multinode system through a single
node.
NEXT STEP IN BCS EVOLUTION TO ISDN
Increased attention is being given to anticipated applications that
will be made possible when ISDN becomes widely available. The key to
ISDN (or any other application) value for users is to provide the
vehicle to implement ISDN features. The 9751 CBX provides that
vehicle.
PUBLICATIONS
The following are available.
o 9751 CBX System Description Manual - 9751 CBX Controller Section
(300165)
o BCS Brochure (300512)
o 9751 CBX Proposal Insert (303017)
o Announcement Fold Out (300186)
o Data Connectivity Brochure (300513) (available November 1987)
To obtain publications and additional documentation for the
9751 CBX, contact your ROLM Systems Marketing Division marketing
representative.
EDUCATION SUPPORT
All CBX overview and other appropriate courses will be updated
to reflect the 9751 CBX.
The following new course will be available.
o 9751 CBX System Management (SC10)
TECHNICAL INFORMATION
Width -- 737 mm (29 inches)
Depth -- 813 mm (32 inches)
Height -- 1,905 mm (75 inches)
Weight -- 415.9 kg (915 pounds), maximum
SPECIFIED OPERATING ENVIRONMENT
MACHINE REQUIREMENTS: An IBM 9755 Attendant Console, or equivalent.
PROGRAMMING REQUIREMENTS: CBX System Software Release 9004.3*
* Shipped automatically with the 9751 CBX, and licensed for use only
with the 9750 system.
COMPATIBILITY: ROLM equipment supported by installed CBXII 9000
systems will be supported by the 9751 CBX, with the following
qualifications:
o The Electronic Telephone Set (ETS 100, 200 and 300) products are
not supported.
o The Integrated Personal Computer Interface (IPCI) is not
supported.
o Attendant console support is provided through the IBM 9755
Attendant Console
o Data support previously provided through DTI/RMDI is now provided
through the Asynchronous Rack Mount DataCom Module (ARMDCM).
Optionally, DCM/RMDCM can be utilized.
o The 9751 CBX can be interconnected with the CBXII 8000 or 9000
nodes by SatOps, but not with InterNode Links (INL) or Digital
Interties (DI).
o PhoneMail support is provided through the Enhanced Voice
Processor (EVP). PhoneMail Release 3.5 or subsequent releases
are required with 9751 CBX.
LIMITATIONS:
o The 9751 CBX can be extended up to a maximum of five cabinets in
a single node configuration.
o A multinode configuration can be extended to a maximum of 15
nodes.
PLANNING INFORMATION
CUSTOMER RESPONSIBILITIES: 9751 CBX customer responsibilities
include, but are not limited to, providing a suitable installation
environment for the system as specified by ROLM. For more
information on customer responsibilities contact your ROLM Systems
Marketing Division marketing representative.
CABLE ORDERS: 9751 CBX customer responsibilities include, but are
not limited to, providing and installing all station, riser/feeder
and inter-building cabling to meet specifications provided by ROLM,
including termination on the Main Distribution Frame. Customers may
elect to have ROLM perform cable responsibilities for a fee. For
more information on supplemental installation services, contact your
ROLM Systems Marketing Division marketing representative.
SECURITY, AUDITABILITY, AND CONTROL
User management is responsible for evaluation, selection, and
implementation of security features, administrative procedures, and
appropriate controls in application systems and communications
facilities.
TERMS AND CONDITIONS
PURCHASE DISCOUNT: Available under the ROLM National Pricing
Agreement (NPA) and ROLM Corporate Pricing Agreement (CPA) as
available through the ROLM Equipment Sales and Installation
Agreement.
ROLM CREDIT CORPORATION FINANCING: Term leases and installment
payment plans are available through the ROLM Credit Corporation, a
subsidiary of the IBM Credit Corporation.
WARRANTY: The standard warranty applies as defined in the ROLM
Equipment Sales and Installation Agreement (ESIA) and as modified by
additional options, also announced today in IBM Product Announcement
187-178.
MAINTENANCE SERVICE: Standard maintenance applies as defined in the
ROLM Customer Support Maintenance Agreement (CSMA) and as modified by
additional options, also announced today in IBM Product Announcement
187-178.
CHARGES
For information on purchase prices for the 9751 CBX contact
your ROLM Systems Marketing Division marketing representative.
Customers wishing to implement a Remote Node configuration
prior to the planned Remote Node availability (first quarter 1989)
may chose an interim Satellite Operations (Sat Ops III)
configuration. For details, contact your ROLM Systems Marketing
Division marketing representative
Customers who installed a CBX II 8000 to 9000, or a major
expansion, on or after January 1, 1986, will be offered a trade-in
program. For details, contact your ROLM Systems Marketing Division
marketing representative.