home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Network Support Library
/
RoseWare - Network Support Library.iso
/
pressgen
/
da046.txt
< prev
next >
Wrap
Text File
|
1993-10-01
|
11KB
|
252 lines
LattisNet(R) System 2000(tm)
FDDI Workgroup Concentrators
Highlights
* Preconfigured, manageable platforms deliver plug-and-play
simplicity for cost-effectively implementing, monitoring and
controlling 100 Mb/s FDDI networks
* Support a wide raf media options, including fiber optic,
shielded twisted pair and unshielded twisted pair cabling
* Support single attachment and dual-homing of critical FDDI stations
* Integrated Optivity(tm) network management capabilities deliver
powerful port-le control from leading industry management
platforms
* Logical and physical topology views enable extensive
concentrator-based management
* Intelligent insertion and removal of FDDI stations minimizes
network disruptions
* Fully compatible with ISO and ANSI FDDI standards
LattisNet(R) System 2000(tm) Fiber Distributed Data Interface (FDDI)
Workgroup Concentrators offer manageable, preconfigured connectivity platforms
for implementing cost-effective, high- speed FDDI workgroups over a variety obling media.
The FDDI Workgroup Concentrators support up to 14 host stations
operating at 100 megabits per second (Mb/s), delivering a compact, powerful
solution for linking today's high-performance servers and workstations. The
concentrators are also fully integrated with the Optivity(tm) network management
system, SynOptics' premier management solution for a variety of network
environments. Working from a number of leading UNIX-based management
platforms, including Sun Microsystems' SunNet Maer, Hewlett-Packard's
OpenView and IBM's RS/6000, Optivity represents the industry's most advanced
distributed management solution for large, multivendor FDDI, Ethernet and
Token Ring networks.
LattisNet FDDI Workgroup Concentrators include two FDDI Media Access
Control (MAC) elements - Primary and Local. The Primary MAC provides access
to and allows management of devices connected to the Primary path. The Local
MAC automates two processes that contribute to improved network reliability:
intelligent insertion and removal of new stations, and the gathering of
physical topology information.
The concentrators are fully compatible with the International
Standards Organization's FDDI MAC, Physical Medium Dependent (PMD) and
Physical Protocol (PHY) standards, as well as the American National Standards
Institute's (ANSI) X3T9.5 Station Management (SMT) specification.
Three concentrator models are available, each supporting different
media.
Model 2912A SDDI Workgroup Concentrator
The Model 2912A SDDI Workgroup Concentrator offers two fiber optic
A and B ports and 12 Master ports with 9-pin D connectors to support host
stations operating at 100 Mb/s over shielded twisted pair cabling. The Model
2912A supports connectivity up to 100 meters over IBM Type 1 or Type 2
shielded twisted pair cabling, as well as Type 6 shielded twisted pair patch
leads, maintaining compatibility with existing cabling plants. SDDI, which
defines the transmission of FDDI signaling over shielded twisted pair cabling,
is based on interoperability specifications developed by an 11-member team of
FDDI vendors.
Model 2914 FDDI Workgroup Concentrator
The Model 2914 FDDI Workgroup Concentrator features two fiber optic
A and B ports and 12 Master ports implemented via Media Interface Connectors
(MIC) for supporting 100 Mb/s FDDI host connections over fiber optic cabling.
The Model 2914 supports host connections up to two kilometers (km) over 50/125
and 62.5/125 m multi-mode fiber cabling.
Model 2915 FDDI Workgroup Concentrator
The Model 2915 FDDI Workgroup Concentrator offers two fiber optic A
and B ports and 12 RJ-45 modular receptacle Master ports to support host
stations operating at 100 Mb/s over Category 5 unshielded twisted pair
cabling. The Model 2915, which supports connections up to 100 meters between
the concentrator and the host station, is compatible with the latest ANSI FDDI
specification for twisted pair physical medium dependent (TP-PMD) operations.
Configuration Flexibility
The System 2000 family of FDDI concentrators support a wide variety
of network configurations. The fiber-optic A and B ports enable the
concentrators to be dual-attached to an FDDI trunk ring or dual-homed to
higher-level FDDI concentrators. Alternatively, the B port can provide a
single-attach connection to a higher-level FDDI concentrator while the A port
supports an additional end-station. In a stand-alone (null-attach)
configuration, the A and B ports can be used to support two additional host
stations. Configuration and port status information may be obtained through
front-panel LED indicators, from the network management station, or through
the service port.
Integrated Network Management
System 2000 FDDI Workgroup Concentrators are configured to support
SynOptics' Optivity network management system, enabling network managers to
control the FDDI network with port- level precision. Optivity includes
familiar SynOptics management features such as system- generated network maps,
the Expanded View(tm) graphical user interface and full Simple Network Management
Protocol (SNMP) compatibility.
In FDDI networks, every station supports the American National
Standards Institute's (ANSI) FDDI Station Management (SMT) protocol.
LattisNet FDDI Woroup Concentrators collect SMT-generated data from
attached stations, and an on-board AMD 29005 RISC processor processes the
management frames within the concentrator. An SMT-to-SNMP proxy agent on the
concentrator enables a central management station - a UNIX workstation running
the Optivity application - to display the information as part of a network map
discovered and displayed by SynOptics' Autotopology Plus(tm) mapping feature.
From the central management station, network managers can obtain ecific fault, performance and configuration data from System 2000 FDDI
Workgroup Concentrators located anywhere in the extended network. Through
Expanded View, the network manager can summon a real-time view of the
concentrator to monitor and control individual host connections.
Standards-based Management
SNMP support enables the FDDI Workgroup Concentrators to pass
management data through bridges and routers in extended networks. SNMP
compatibility also enables network administrators to manage LattisNet FDDI,
Ethernet and Token Ring networks, as well as other SNMP-compatible devices,
from a common management system.
The concentrators include 2 megabytes (MB) of ROM on-board for
incorporating full FDDI management information base (MIB), SMT, SNMP and
diagnostic software for extensive management capabilities down to the port
level. An additional 2 MB of RAM enables SMT and SNMP to be downloaded to the
concentrators from the management station using TFTP. A local load option is
also included to allow startup without intervention by the network management
station.
LattisNet FDDI Workgroup Concentrator Features
LattisNet FDDI Workgroup Concentrators include a number of other features,
including:
* A serial service port, implemented via a male DB-9 connector, for
local diagnostics and configuration.
* A standard RS-232 DB-25 port enables the concentrators to be managed
out-of-band over a modem link from a central management station
should in-band communications fail.
* An optical bypass switch control, implemented through a 6-pin mini-
DIN connector, enables the network manager to remove the
concentrator from the ring without causing the network to wrap.
* Per-port LEDs indicate active ports, Link Error Monitor (LEM) alarm
conditions, fault status, port partition status and whether the
port is attached to the local or primary path.
* Full compatibility with the LattisNet System 3000(tm) product family
enables the FDDI workgroup concentrators to serve as sd-alone
units or as satellite hubs supporting workgroups operating within
larger networks.
LattisNet System 2000 FDDI Workgroup Concentrators
Specifications
Network Protocol and Standards Compatibility
ISO 9314-1 FDDI Physical Protocol (PHY) Standard
ISO 9314-3 FDDI Physical Medium Dependent (PMD) Standard
ANSI Draft TP-PMD Specifications
ANSI FDDI X3T9.5 Station Management (SMT) Specification
Data Rate
100 Mb/s
Electrical Specifications
Power consumption: 105 watts @ +5V; 6 watts @ +/-12V
Thermal rating: 421 Btu/hr
SDDI Specifications (Model 2912A)
Differential signal level: 525 mV - 175 mV
Rise time (10-90%): 4 ns - 2 ns
Fall time (10-90%): 4 ns - 2 ns
Optical Specifications (Model 2914)
Transmitter/receiver LED/PIN diodes
Wavelength: 1300 nm
Optical power coupled into a 62.5/125 m, 0.275 NA fiber:
-16 dBm +/- 2 dBm
Optical receiver sensitivity: -31 dBm min
Optical receiver dynamic range: 17 dB maximum
(All optical specifications meet theANSI FDDI PMD specifications.)
UTP Specifications
Based on draft TP-PMD standard
Coding: MLT-3
Signal level: 2 volts peak-to-peak
Physical Dimensions
(H) 3.5 in x (W) 17 in x (D) 16 in [(H) 8.9 cm x (W) 43.2 cm x (D)
40.6 cm]
Weight
18 lbs (8.1 kg)
Environmental Specifications
Operating temperature: 5*C to 40*C; storage temperature: -25*C
to 70*C
Operating humidity: 85% max relative humidity, non-condensing;
storage humidity: 90% max relative humidity, non-condensing
Operating altitude: 10,000 ft (3,048 m) max
Free fall/drop: ISO 4180-2, NSTA 1A
Vibration: IEC 68-2-6/34
Stock/bump: IEC 68-2-27/29
Electromagnetic Emissions
Meets FCC Part 15, Subpart J, Class A and B
Meets EN 55 022 (CISPR 22: 1985), Class B
Meets General License VDE 0871, Class B (AmtsblVfg 243/1991,
46/1992)
Meets VCCI Class 1 ITE
Electromagnetic Susceptibility
Electrostatic discharge (ESD): IEC 801-2, Level 2/4
Radiated electromagnetic field: IEC 801-2, Level 2
Electrical fast transient/burst: IEC 801-4, Level 2/3
Electrical surge: IEC 801-5, Level 1/3
Safety Agency Approvals
UL listed (UL 1950)
CSA certified (CSA 22.2, #950)
TUV licensed (EN 60 950)
Optivity Network Management Specifications
See Optivity data sheet, P/N DA505-307US-A
Corporate Headquarters
SynOptics Communications, Inc.
4401 Great America Parkway
Santa Clara, CA 95054
Tel (408) 988-2400
Fax (408) 988-5525
System 2000, Expanded View, Autotopology Plus and Optivity
are trademarks and LattisNet and SynOptics Communications are registered
trademarks of SynOptics Communications, Inc. Other brand and product names
are registered trademarks or trademarks of their respective holders.
DA505-046US-C