Cześć ! Trafił w moje ręce ciekawy modem telefoniczny ( zewnętrzny ) o nazwie ASTER 4. Jest to modem zawierający między innymi procesor DSP i analizator linii telefonicznej . Problem polega na tym , że mam opis przyłączenia go do linii 4-ro przewodowej , a jak wiemy , u nas są tylko 2 przewody. Czy ktoś wie coś o tych modemach , może ktoś z takiego modemu korzysta ? Po analizie możliwości tego modemu , szkoda było by z niego zrobić " dawcę organów " :D Macie jakieś pomysły ? .
ASTER 4
V.34+ 33,600 bit/s on standard switched telephone lines (PSTN) and
2/4 wire leased lines
•
Superior Telindus DSP technology for optimum line performance
•
Flash memory for future proof solution
•
Full Duplex Asynchronous and Synchronous Data Compression
•
Advanced PSTN Backup scenarios upon Leased Line Failure
•
Hacker-proof PSTN Security Access Control
•
Optional DES Encryption
•
Multiple Management Facilities
The Aster 4 series uses the superior Telindus DSP technology to achieve data-transfer
rates (uncompressed) of up to 33.6 Kbit/s on leased lines and PSTN dial-up circuits with
automatic or user-controlled (e.g. by the network management system) fallback based on
custom-defined line-quality thresholds. The modem is designed for both 2-wire and 4-wire
analogue lines.
The Aster 4 can even further increase the user data rate by offering compression with
the powerful Lemple Ziv algorithms. Both the V.42bis and the MNP5 algorithm are
supported. It provides not only regular asynchronous compression but also synchronous
compression on HDLC frames (such as LAPB, LAPF, and SDLC) as a unique standard
feature. This gives higher throughput and faster response times when interconnecting
Frame Relay, X.25, or SNA equipment.
An optional hardware DES encryption facility ensures data confidentiality, which makes
the Aster 4 ideal for demanding security environments such as those of financial
institutions, government agencies, and leading-edge research and development
enterprises. The integration of the encryption functionality on the Aster 4 series enables it
to be combined with the compression facility. The result is the best possible combination
of performance and security at the lowest price.
The reliability of the network is guaranteed by flexible backup scenarios of the
analogue leased line through the PSTN network.
PSTN
Aster 4
Aster 4
LL
LL
Packet
switched
Bacbone
Management
Backbone access with dial backup and integrated network
management
To prevent unauthorised access to the network, high-level
security features are included to protect the PSTN port. Access
security on this high-performance modem includes fully
encrypted password exchange, call-back, and dial backup
security.
For large concentration sites, rack-mount versions are
mounted in a standard 19” card nest and can offer densities of
up to 28 modems per nest. Both 48 Vdc and 230/115 Vac
powering are available.
The Aster 4 is designed for integration into demanding
network environments and is equipped with an embedded
secondary maintenance channel for transmitting management
information to remote modems without interference to the user
data. The Aster 4 is supported by powerful network
management tools:
• HP-OpenView® integrated network management;
• Optional IBM Netview LPDA-2 integrated network
management;
• DNMS (Dial-up Network Management System) for dial-in or
dial-out pools.
In order to optimise the service on the installed network,
Telindus also offers a free Windows® based maintenance
package. It is a valuable tool for the field engineer as it
supports full configuration and troubleshooting. It can be used
for locally controlling the Aster 4 or for dialling to any modem
in the network, providing full control over the remote equipment.
New software releases can easily be downloaded to the
Aster 4, thanks to its versatile Flash programming facilities.
The software can be downloaded locally through the DTE
connector or remotely over PSTN network. The Flash download
program is available free from the Telindus Internet Web site.
TECHNICAL SPECIFICATIONS*
Features
•
Desktop and Rack-mount versions available
•
Flash upgradable Firmware and DSP (Digital Signal Processing) software
•
Full control over remote modem with local keyboard and LCD.
•
Password exchange and Call-back security on PSTN interface
•
Analogue line parameter monitoring on LCD
•
Free local maintenance software (TRM) available on Telindus Web site
•
Free Flash download program (TML) available on Telindus Web site
•
Optional hardware DES encryption*
•
Optional LPDA-2 Netview management
•
4 custom defined configurations
•
Customised interface signalling GPIN,GPOUT
•
V.54 testloops: AL,RDL,DL and integrated 511 BER generator with error count
Dimensions (HxWxD)
•
Desktop versions:
50x202x324 mm
•
Rack-mount versions (CN3bis): 268x30x380 mm
Weight
•
Desktop versions:
2.3 kg
•
Rack-mount versions:
1.0 kg
Environmental Requirements
•
Ambient temperature:
0 to 40 °C
•
Storage temperature:
-10 to 70 °C
•
Maximum altitude:
3000 m
•
Relative humidity:
5 to 95 %, non condensing
Power requirements
•
Desktop versions:
100/115Vac or 220/240 Vac 47-63 Hz 12 W
•
Simple Rack-mount versions: 7.5 W
•
Double (Twin) Rack-mount versions: 9 W
AL
ENTER
a
MONITOR A e
28.8/28.8
V34
c
:
s
ESC
PW R
TST
DTR
DSR
142
108
107
AA
PSTN
CALL
A
0
DL
& lt;
PSTN
SHIFT
ASTER 4 Flash
FUSE 110V : T200mA/220V
FUSE 220V : T100mA/220V
Line Interface
•
RJ11 2 wire / 4 wire* Leased Line
•
RJ11 PSTN
•
Output level: -15 .. 0 dBm
•
Maximum input level: 3 dBm
•
Impedance: 600 Ohm, resistive, balanced
•
Echo canceller: up to 1.3 sec (2 satellite hops)
User interface
•
LCD screen : 2x16 characters (Desktop versions)
•
Keyboard: 12 multifunctional keys (Desktop versions)
•
Handhold terminal with LCD and keyboard (Rack-mount versions)
Auxiliary port *
•
Auxiliary port for management, low speed aux channel or second dial port
•
8-pin RJ45 (Desktop versions)
•
25 pins Sub-D (Rack-mount versions)
Modulations
•
Data Modulations: V.34+, V.34, V33, V32bis, V.32, V.29(4W)*, V.22bis,
V.22, V.23, V.21, Bell212A, Bell 103
•
Fax Modulations: V.17, V.29, V.27 ter
•
Fax compatibility: Fax group 3 -T4 Class 1 & 2
•
PSTN interoperability: V.8, Telindus Auto-Mode
•
Error Correction: MNP4, V.42
•
Compression: MNP5, V.42bis
DTE interface
•
V.24/V.28 25 pins sub-D connector
•
X.21/V.11 interface available on X.21 models (on request)
•
Max DTE speed: 115200 bps
•
Flow control: CTS, CTS/RTS, Xon/Xoff
•
Synchronous operation
•
Asynchronous operation according V.14 supporting 8/9/10/11 bits/char.
•
RTS/DCD simulated switched carrier operation according to V.13
•
Modem Clocking: internal, external, slave/receive
•
Automatic speed and parity detection for Hayes AT and V.25bis
(7+even/odd, 7+mark/space, 8+none, 8+even/odd)
Synchronous compression (for HDLC framed protocols)
•
NRZ/NRZI encoding
•
maximum frame length: 1536 bytes (excluding CRC)
Automatic dialler
•
Dialler protocol: Hayes AT set, V.25bis
•
Dial format: Asynchronous, HDLC, Bisync ASCII & EBCDIC, BSC ASCII & EBCDIC
•
Memory for 200 telephone numbers and access passwords
•
Automatic PSTN dial-backup in case of Leased Line failure
T
F
CTS
TXD
DCD
103
109
B
1
RL
=
AA
*
6
104
LL
PSTN
2
ET
& gt;
D
3
8
CONF
P
SPEED
7
E
DTE PORT A
NMS
Port
I
WARNING!
DISCONNECT MAINS , NETWORK AND PORTS BEFORE OPENING
Aster 4 Desktop
* Note: Specifications are given on a general basis. Items marked with an asterisk may not be present on all family models
Note: Telindus may make improvements and/or changes in the products described above at any time, without notice and shall in no way be held responsible for errors in this document.
Your Distributor
Geldenaaksebaan 335 • B-3001 Heverlee • Belgium
Tel +32/16-38.20.11 • Fax +32/16-40.01.02
website http : //www.telindus.com
153150
4
VO/DA
Dial 1
Adj
110/220 - 240V ~ 50-60Hz INTERNAL SELECTOR
160mA/80mA
0
C
CS
#
RXD
106
5
9