About CIN.net K56 modem
For K56flex modem operation, the client-side modem must be operating with
K56flex v1.0 software or higher. In many cases this will mean that the
client-side modem will require a flash upgrade, and in a small base of
modems, a hardware exchange may be necessary.
To determine if a client-side modem is K56flex operational, a user can
place the modem in the command mode, and communicate directly with the
modem using the AT command syntax. To enter AT commands you must attach
your modem to a computer's serial port and enter commands directly from
terminal emulation software such as Windows 95's HyperTerminal
program. To use AT commands in terminal mode to verify software
version, do the following:
1. Start your data communications program.
2. At the screen prompt type in ATi3 followed by a carriage return (or
ENTER).
3. Note the modem's response.
4. If the modem responds with V1.0-56K_DLS (or higher), a K56flex modem
connection is possible. The DLS part of the ATi3 output designates a
flash upgradable modem.
5. If the modem responds with an earlier version of software (such as
V0.519-K56_DLS), please contact the modem vendor's web site for the
latest firmware upgrade. (See section: How can I get my K56flex client
modem upgraded?)
Cin.net K56 modem pool are using Lucent Technology true digital
modem and is compatible with any client modem
supporting K56flex1.1. Some client modems may require a flash upgrade
to get to K56flex1.1 compatibility. Customers must contact the client
modem manufacturer to obtain the most current version of their
software.
With 56K modem technology, the negotiation of connect speed is driven
by the client modem. Not all client modems are created equal, but all
have the task of identifying various network limitations and
compensating to achieve the highest data rate for a given connection.
That means while the modem at server end (cin.net modem pool) has the
ability to connect at the highest possible speed allowed, connection
speed still has to be negotiated by the client modem which might dictate
a slower speed.
Data Modulations are:
- * K56flex
- * ITU V.34 Annex 12 - 33,600 bps et al.
- * ITU V.34 - 28,800 bps et al.
- * ITU V.8 - V.34 capabilities negotiations
- * ITU V.32bis - 14,400, 12,000, 9600, and 7200 bps with trellis
encoding
- * ITU V.32 - 9600 and 4800 bps
- * ITU V.22bis 2400 bps
- * V.42 or MNP 5 error correction
- * V.42bis,LAPM or MNP data compression
The following client modems have successfully connected and transferred
data with the digital modem that cin.net use. (not necessarily
using K56flex). The output of their "ati3" version numbers is
included.
- BocaModem V.34+
Firmware V1.510-V34_DS
- Cardinal Internal V34+
Firmware V1.50-V34+DP Data/Fax
- Gateway 2000 Telepath 14.4k, Made by USR
Firmware Supervisor 4.1, 6/27/94, DSP 10, 4/20/94
- Gateway Telepath Internal
Firmware 1.5 000
- Gateway 2000 Telepath II 14.4k/Fax V5.2 / USR
Firmware Supervisor 5.2 12/09/94 DSP 11.2 09/07/94
- IBM Mwave Internal modem
- Intel 144, 144e, Internal 14.4k as well
Firmware V1.7 Rockwell RC144DP
- MicromCom 33.6k OfficePorte Voice
Firmware V2.011-V34_ACF_DS1
- Microcom DeskPorte Fast ES 28.8
Firmware V1.000-CS39 VFC RC288Dpi Rev 05BA
- (Fastest connect rate was 14.4k, V.FC not supported)
- Motorola UDS
Firmware 1.03.03
- Practical Peripherals
PM28800MT Firmware 1.63
- Practical Peripherals PM14400FXMT
Firmware 2.17
- Prometheus 14.4k RC140DPi Rev CA
Firmware CES-03B- 940315
- SuperExpress 288 PnP
Firmware V1.200-07-V34_DS Built July 18 1995
- SupraExpress 336 PC
Firmware V1.440-16-V34_DS Built: July 22, 1996 11:15:10
- Texas Instruments RK 33600 Internal / USR Modem
Firmware EPROM 1.4 11/22/95 DSP 1.4 11/22/95
- USR sportster 28.8
Firmware Supervisor 6.0, 12/19/94, DSP 11.4 12/09/94
- USR 33600 Fax modem Internal
Firmware EPROM 10.0.23 12/10/96 DSP 10.0.23 12/10/96
- USR Sportster 14.4
Firmware Supervisor 4.1, 6/27/94, DSP 10, 4/20/94
Firmware Supervisor 4.1, 11/16/93,DSP 10, 11/16/93
- USR V34+ Internal
Firmware EPROM 3.12 8/16/96 DSP 3.12 8/16/96
- USR 33.6 V32bis, VFC, V.34+
Firmware 2.0 1/11/96
- Zoltrix V.34+ Fax Modem
Firmware V2.061 US001-V34_ACF_DP1
- Zoom V.34 plus
Firmware V.1500 -V34_DS -a Z201
More K56 modem FAQ
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