@6edd.adf Newest Courier PS/2 internal modems
@6ded.adf Courier 2400 PS/2 modem
Product Code Finder
Upgrading the Courier V.32 to 56k
Courier Dual Standard Fax with v.32bis and ASL
X1 1.8432MHz Crystal
Model 0185 Original model, usually with a sticker with the upgraded model (on the left edge of the board) depending on the daughtercard.
This modem will do an honest 21.1K as is.
U1 TI PD17278PJ (?)
NOTE: If your daughtercard has a 32MHz oscillator, that is non-flash capable. The base card may take the upgrade daughtercard, which has either a 40.32 or 50MHz oscillator.
The following information was extracted from the 3Com site HERE
Courier Modems that Require a Daughterboard
How do I
find my model number?
This includes the following model numbers:
Orders can be placed by calling 1-800-231-8770 (Monday
through Friday, 7:00 AM to 8:00 PM CST USA). Orders can be
billed to a credit card (Visa, Mastercard, or American Express). After
placing an order, you will receive a daughterboard upgrade kit in the mail.
Finding an X2 Daughtercard
(b) daughtercard = hardware upgrade for the "small" size from 16MHz v.32 (128K EPROM, 32K RAM) to 20.16 MHz (256K EPROM, 32K RAM) and Terbo + V.FC options
(c) BIOS flash = firmware upgrade via software using flash loader, applies to daughter-card-upgraded as in (b) above or for the models listed in my previous post, taking them to options HST, V.32bis, Terbo, V.FC, and V.34+. This _software_-executed upgrade also increases the EPROM to 512K and the RAM to 64K. The unit then also has X2 capabilities as well, but one needs to pay USR $60 for a key code to exercise after dialing in to their X2 upgrade bulletin board, which then activates the X2 capability. A further firmware flash upgrade to V.90 from X2 is free.
There is, of course, a similar upgrade path for many of the Sportster 28.8/33.6 internal and external modems to X2 and V.90, which also cost $60. But they won't have all the communication protocol options that the Courier has when it has been transformed.
That is, the V.EVERYTHING means exactly that -- the unit will communicate using any USR-certified protocol.
Possible "Good" Modem ID
A list of the modems that I have which I know are software-upgradable, as follows (legend on the front bezel):
_______Model Name________________________|_Model Number__
V.EVERYTHING with V.34 - - - - - - - -- - - 00122400
The single common factor between these is that they all have a barrel
plug connector for the power adapter, and the power adapter is 20VAC (so
polarity of the connector doesn't matter).
No Courier modem with a 4-pin keyed round connector is
directly upgradable, because these models only have 16 MHz or less clock
frequency. To be upgraded (if it is still possible) they require a daughter-card
replacement -- about $35 IIRC. I haven't seen one of these that operates
above 14.4 (19.6?) Kbps natively. The 4-pin keyed connector is similar
in size and appearance to a mini-DIN PS/2 mouse/keyboard connector, but
with a different pin arrangement.
I suppose an internal modem connected directly to the bus _might_ give quantitatively faster file and netgraphics transfer speed, but otherwise, I'm not sure why anyone would really want one.
Is there a PCMCIA adapter for the PS/2 16-bit MCA slot? If so, that
might be a profitable avenue to explore. 56K PCMCIA modems seem to be getting
cheaper. (Ed. The PCMCIA Adapter /A
is not supported under anything but OS/2 and Win3.1x)
The $99 for the daughterboard upgrade does not include the cost of the 56kbps/x2 enable key.
Obtaining a 56kbps/x2 Enable Key
(Editor's Note: I have a Courier v.32bis w/ASL in my 9595OYT- have yet to get the $60 V.90 "key", so I'm making do with 28K+...)
an HST modem
YES! I tried the original daughtercard from my Courier V.32bis and it worked! It runs at the 21.1K rate the courier did before the upgrade daughtercard.
Important info- if the number on
the front end of the main modem board is 0185, then the 3com Product #
80-000953-00, Courier V.34 DS FX DB UPG should work.
What does this mean?
If you have the Microchannel Addiction Disorder, this is
a way to get that v.90 MCA modem and show off to your friends. But it will
cost $160 for the upgrade card plus the "key". You decide.
22597sdl.exe x2 capable - 2/25/97 FLASH ROM code for U.S. Robotics Courier V.Everything for 20Mhz only (check ATI7). This is current production code includes DOS based FLASH program, XMODEM image file and documentation. For domestic U.S./Canada modems only.
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