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- Newsgroups: comp.dcom.modems
- Path: sparky!uunet!ferkel.ucsb.edu!taco!gatech!emory!swrinde!elroy.jpl.nasa.gov!decwrl!csus.edu!netcom.com!mpye
- From: mpye@netcom.com (Michael Pye)
- Subject: Modem Summary - part 1
- Message-ID: <1993Jan27.124246.29788@netcom.com>
- Organization: Netcom - Online Communication Services (408 241-9760 guest)
- Date: Wed, 27 Jan 1993 12:42:46 GMT
- Lines: 909
-
- This is a summary of the responces to my query of which modem to
- purchase (after being burned by a Supra).
-
- Gathered (mostly) from sources on the Internet. This discusses various
- 14.4K (and higher) modems. As most of the "reviewers" lean heavily
- toward the Zyxel modems, I've included some detailed specs on these as
- well.
-
- Modems discussed: Supra, Gateway Telepath, Zoom,
- Practical Peripherials, USR Courier HST Duel, AT&T, Motorola, Zyxel
-
- Thanks to: Paul Platt, Paul Platt, Mark Scrivener, Joseph Stroup,
- Aron Roberts, Bill Johnston, and Steve Pershing.
- ========================================================================
-
- >From pep Tue Nov 3 19:31:13 1992
- Date: Tue, 3 Nov 92 19:31:08 CST
- From: pep (Paul Platt)
- To: Scrivener@llnl.gov@meson
- Subject: modems
- Cc: pep
- Content-Length: 16185
- Status: RO
- X-Lines: 272
-
-
- I did a one on one comparison of Gateway, Zoom, Supra, and ZyXEL. Here is
- rough cut at data. I called several hard to connect to systems both local
- and long distance. Modems were rotated and the calling sequence cycled
- through approximately 5 times. As an example of the variance, Gateway
- never connected to ZyXEL BBS. Rarely to R&E. Rarely (once? - don't have
- my notes with me) to work. ZyXEL connected to Supra, ZyXEL, USR Dual, PPI
- reliably. Gateway never got 14400 connect to PPI. Only ZyXEL, and PPI
- (seperate test on PPI - not one on one) connected all of the time.
- PPI droped carrier or had UUCP problem depending on PROMs used. PPI wasn't
- tested under as adverse conditions as the others were.
-
- > Anyone interested in a comparison test against other
- > modem brands? I have the ZyXEL, can borrow a Zoom.
- > The Supra MAY be able to be borrowed again.
- >
-
- RESULTS OF THE FIRST Paul E. Platt MODEM SHOOTOUT
-
-
- Gateway Telepath - Model tested had the latest PROMs as of September 1992.
- This modem is cheap ($199) and comes with the best
- software bundle. END OF GOOD NEWS. This was the worst performing
- modem BY FAR. It does not like to renegotiate and when it does
- renegotiate it sometimes screws up. This modem works well if you
- live in an area with perfect phone lines and only call others
- with perfect lines. Documentation was the worst of the bunch;
- it consisted of a brief command listing and not much else. Call up
- Zoom and get their manual. The commands are the same. The command
- set for the FAX and modem are pretty comprehensive.This modem
- will sometimes lock in a state where it is outputting a tone and
- where it refuses to accept ANY commands. The only way to exit this
- condition is with a hard reset of the computer. <CTL><ALT><DEL>
- doesn't help. Neither does diconnecting the modem from the phone line.
- The plug for a regular phone is unswitched. Hence that phone stays
- connected during modem usage. This is both good and bad. On the plus
- side, I sometimews used it for monitoring call progress up to the
- time a tone was received. This was very useful with the Telepath
- since it would return a BUSY response when it got a voice message
- saying "We're sorry but your call did not go through as dialed.
- Please check the number and dial again". At one point I thought
- a BBS was very busy only to later find out I was dialing the wrong
- number! On the downside, all phones connected to a line degrade the
- connection. For that reason, most modems disconnect the regular phone.
-
- In fact, the Gateway Telepath was very sensitive to other phones on
- the line. Disconnecting all phones made a big improvement in the
- reliability of connections. No other modem showed such extreem
- sensitivity to associated equipment. PROMs are soldered in so
- upgrades mean returning the modem. Tech support is helpful and
- they have an excellent BBS.
- However, they do tend to say "It's a problem with the phone line"
- to cover up the problem the Gateway has with noisy lines. The
- engineer who answers most of the hard questions (a nice and
- knowledgeable person) just bought a ZyXEL.
-
- Zoom - Works better than the Telepath by a good bit even though based
- on the same Rockwell chipset. Nice lights and a reasonably attractive
- case. Relatively cheap. A very rich modem and FAX command set.
- The problem is in performance. This modem tries to connect at 14.4K
- even when it shouldn't. It then locks in the negotiation phase.
- The result is CARRIER 14400 and then nothing. This is similar to the
- Gateway but requires more marginal lines for it to happen. Users
- with excellent phone lines will probably think this is a great
- modem. I don't. I like the manual. The AT, FAX, PROTOCOL and S
- register
- chapters have a command summary at the start and each command
- is then listed in more detail. Word on the street is that upgrades
- to the firmware are few and far between. Tech support is near
- impossible to reach.
-
-
- Zoom
- ati3
- V1.200 TR14-Jxxx-001 049
-
-
- Supra - A very attractive package. This modem is TINY. It reminds me of a
- small radar detector. The display is very informative and better than
- all but the PPI and the ZyXEL with the LCD. The speaker is the worst
- sounding modem speaker I have ever heard. There have been reliability
- problems with the speaker but they are supposedly fixed. This modem
- worked well. It tends to try for a fast connection. However, it does
- a much better job than the Zoom or Gateway of getting through the
- negotiation phase. Still, it can be made to exhibit the same
- CARRIER 14400 and then nothing response as the other Rockwell
- based modems. All in all, not a bad modem for the price ($265 here,
- $199 at the BBS Con One convention). This modem runs hot so
- reliability
- is a question. Keep it well ventilated. Case has an expensive look.
- Much nicer than the ZyXEL (especially E model) or Zoom. There is a
- front panel power switch (YEAH!). As with the other Rockwell based
- modems, a very good modem and FAX command set. Several stored factory
- setups designed for Mac, Mac with DTR, PC - a nice touch. I couldn't
- get the F2 default to be recognized however (user error??). The
- F0 and F1 defaults worked. Caller ID is being added and voice is
- promised. The Supra BBS looks fairly good. Supra has a reasonable
- update policy with fixes being free and new features (caller ID etc.)
- being about $30. All in all, this is a reasonable modem if bottom
- line dollars are a first priority. The quick reference card is
- the best I have seen. The manual is ok for beginners but lacking in
- depth of coverage. The modem is available with various software
- packages. The PROM revision number was V1.200H. I believe this is the
- latest rev. without caller ID. Since these are the original PROMs,
- it is interesting that caller ID hasn't been added to the shipping
- product.
-
- OK
- at i3
- V1.200-H TR14-Jxxx-001 053
-
- Practical Peripherals - Based on the AT&T chip set this one is hard to
- call since I didn't have it available for direct comparison. However,
- I was able to spend some time with it and have a preliminary opinion.
- The size and shape make placement a bit awkward. This modem really
- wants to sit beside your PC and not on top of it. The display is
- GREAT. Only the LCD model ZyXEL is better.Once you have used a
- modem with this kind of display you won't want to go back. In some
- areas it is better than the ZyXEL. The ZyXEL will just say
- DIALING..... The PPI will say DIALING then FAR RING to show that
- it is getting a ring at
- the other end of the line. There are several other messages not
- displayed by the ZyXEL. The modem is easy to update and the past
- policies of PPI have been very nice. PROM changes are sent free of
- charge. All they ask is that the old PROMs be sent back in the
- supplied mailer. The quick reference card is very good. Slightly
- below that of the Supra and the ZyXEL. It doesn't show the FAX
- commands. The manual is good for beginners but lacks the depth of the
- Zoom manual. Connections are, in most cases, easy to make. I was
- never able to connect to the ZyXEL BBS however. The PPI likes to
- make high speed connections and seems to stay at 14400 more than
- the ZyXEL. However, when it does renegotiate, there is a problem
- and the connection is more often than not lost. This is fixed in
- the latest PROM release (1.15m). However, the fix resulted in the
- modem not working on uucp connections. PPI is serious about fixing
- this
- problem and they were asking to work closely with my friend who owns
- the PPI. It seems that at first they didn't know what uucp was.
- This looks to be an excellent modem once this problem is fixed.
- For the moment I would stay away if uucp is a concern. Also, make
- sure you have the latest PROMs (1.15m?) since otherwise you will
- get lots of dropped connections. I had trouble getting through my
- mail before being dropped. The street price for this modem is
- about $400. This is expensive for a modem with 9600 FAX (not 14.4K)
- and no caller ID or voice mail capability.
-
- Courier HST Dual - I didn't have one to evaluate but almost all BBSs use
- these. Some of this is due to their long standing discount program for
- sysops but I have heard only good things about these modems.
- Unfortunately, you pay a lot for the security. Probably a safe bet
- but costly. No voice or caller ID. No security features. The 16.8K
- mode is proprietary and is 16.8K in only one direction. The ZyXEL
- is 16.8K both ways. However, the HST mode is more widely supported.
- In many ways these are the "cheap" reference modems.
-
- AT&T and Motorola - Great reputations. Didn't have any to test. I wanted
- to mention them since they are the safe bets for a business.
- VERY EXPENSIVE. Generally no side features (FAX, caller ID etc.).
- The AT&T is able to download the update to its PROMs by dialing a
- special number. THE best way of doing updates I have ever seen. Most
- of these can be remotely configured (so can the ZyXEL) which aids
- the system administrator. There are now pre-v.fast modems available
- that transmit around 24K baud. If you really need high speed point to
- point over regular phone lines and you have $1800 to spend ($900
- each end) then that is the way to go. Everything else is bush league.
-
- <BACK TO REAL WORLD - HE WAKES UP FROM THE DREAM OF v.FAST>
-
- ZyXEL U-1496 (S & E) - The S model is usually listed without the S designator
- i.e. as U-1496. This is the LCD model. It has far and away the best
- display I have ever seen. Scope outputs are an option. If you can
- afford this modem then get it. I learned more about my phone lines
- in 5 minutes with this modem than from 2 visits by the local phone
- company technician. If nothing else, at least borrow one for a day.
- The feature set is too long to list here. Read the review in
- Boardwatch Magazine. The S model is physically very large and at the
- opposite end of the size range from the Supra. The E model is smaller
- than the S. It is slightly larger than the Zoom
- i.e. close to typical but slightly bigger. The E has the more
- traditional front panel lights and is similar to the Zoom in
- capability
- of the display. There are some extra display features over the Zoom
- with bliking lights telling you line quality etc. but I found that a
- little awkward. Both ZyXEL models have caller ID, voice mail, FAX
- and on and on. Performance was the best of the group actually tested
- (Zoom, PPI, Gateway, Supra). The ZyXEL is conservative. I got a lot
- of 12K connections where other modems connected at 14.4K. HOWEVER,
- under
- the line conditions that generated the 12K ZyXEL connections, the
- ZyXEL
- always connected while the others sometimes hung either during
- initial negotiation or renegotiation. All in all, this is my favorite
- modem and I wound up sending back my Gateway and buying a ZyXEL 1496S.
- Speed shifts are fast. Speaker sound quality is good. It has many
- rare features - DTMF recognition, distinctive ring recognition,
- security callback, leased line dial backup, front pannel
- programmability (S model). Negatives include a manual that's out of
- date
- and doesn't document many features (a new one has just been
- introduced),
- lack of support for some common AT command extensions, poor software
- documentation, & no Windows software. ZyXEL is excellent about issuing
- revised firmware. ZyXEL and Supra seem to have the most active update
- programs. ZyXEL's update policy is reasonable but not as good as
- PPI's.
- They sell the updated PROMs for about $20. The code is freely
- available
- for download if you want to save money and burn your own. ZyXEL
- dealers are few and far between. This is a shame for such an excellent
-
- product. Their BBS is reasonable and I have gotten fair responses.
- With the design staff in Taiwan, I doubt that techie questions will
- be as easily answered as on the Gateway BBS. Modem has a 16.8K mode.
- This is an extension of v.32bis and is not compatible with HST 16.8K.
- ZyXEL is placing the protocol in the public domain (thank you). Also,
- there are new + models coming out which extend this mode to 19.2K
- (not right now - a future PROM update). There may be some issues with
- 16.8K since there has been a problem with 16.8K connections not being
- clean or properly downshifting on noisy lines. I have not experienced
- this myself. Mine has worked fine. The 16.8K problem gets solved when
- one of the ZyXELs is restricted to 14.4K or slower. This brings up a
- connand set feature missing on many modems. It is possible to set
- v.22bis/no negotiation and connect easily to older 2400/1200 baud
- modems.
- Many modems (Gateway, Zoom) require that you lock to a specific speed
- i.e. S37=5 for 1200 baud. The ZyXEL method is much more flexible.
- Figuring out how to connect to America Online was minutes rather than
- the days that I spent with the Gateway and the string was simple:
-
- AT&N15&K0
-
- Be sure to ask about availability of the plus models when ordering.
- These modems are not cheap. Call around for good pricing. ZyXEL will
- supply names of dealers. Get them to give you the full list and not
- just the guy in your area. Then call around. The E model can be had
- for
- $329 from Mike Bernstein at the Kandy Shack (800-638-1170). The E+ is
- about $500. Tradeup policy is currently undefined. I hope they will
- use
- PPI as an example. PPI had a tradeup policy (about $250) from their
- 9600 to 14400 modems. It was supposed to be an upgrade but became a
- tradeup when the decision was made to add the LCD display to the PPI.
- PROMs are rev. 5.02 m. There is a problem with 16.8K when the modem
- retrains (or is it shifts speed?) in the middle of negotiation.
- This only happens on the initial connect (as far as we have seen).
- You get 16.8K no error correction rather than downshifting. ZyXEL
- is aware of this and has a fix in beta test. Same with the problem
- connecting to Microsoft BBS. [these last problems have been fixed
- with the latest ROMs.]
-
- In summary, for the price and if you have fairly good phone lines, get the
- Supra. If you want the best of the ones I tested then that is the ZyXEL. If
- you want it all as far as fearures go get the ZyXEL. If you want a modem that
- is also a piece of phone line test equipment then get the ZyXEL 1496S.
- I bought the S model I tested. I am now sending it back but only because
- I want the S+ model.
-
- UPDATE: Tech response from ZyXEL has been very good. Better than I expected.
- They say PROMs are free when they are only a bug fix. Upgrade path from
- S to S+ is to sell the S ( or in my case get a refund ) and buy the S+.
- I think they should do better here. UDS will upgrade to full v.fast for free
- but ythe modem costs $900 street price. I am still in love with the ZyXEL.
- The display on the S is just to good to give up. It has proven more useful
- than I would have imagined. By watching the instantaneous data rate (RX & TX)
- numbers you can tell a lot about what is going on. S/N says a lot about how
- variable line quality is. Last night kept bouncing from 26dB to 12bD. 12 is
- awful
- and resulted in a speed shift to 4800. 26 will support 14400 - I live in the
- boonies!
-
- The Rockwell based modems have problems in negotiation. All three above
- showed the same problem signature (CARRIER 14400 then nothing). The ZyXEL
- and PPI do not. The fact that I am returing my S for an S plus and shipping
- the Gateway back says it all. BTW, Supra is $265 locally so I must REALLY
- like the ZyXEL to spend so much more on it.
-
-
- Gateway --- -10 garbage
- Zoom --- -7 poor
- PPI --- -7 poor IF you need UUCP. Not -10 since I have faith PPI
- will fix it. Friend is taking his SPARCstation
- over to PPI to show them the problem. They called
- him.
- Supra --- +4 adequate. Great feature set. Lots of upgrades.
- PPI --- +7 if no UUCP usage. Great display. PROM changes fixes
- dropped connection probelm (but breaks UUCP)
- Who uses 14400 FAX anyway. I don't get caller ID.
- ZyXEL --- +9 Not perfect but close enough for sport. Best feature set.
- Works well on poor lines.
-
- MOST WANTED FEATURE: Upgrade of PROMs via modem like AT&T. Expect to
- go through several upgrades no matter what you choose.
-
- Hope this long winded report helps. Let me know if you get this.
-
-
-
- ===============================================================
-
- Zyxel
- ati
- U1496E V 5.02 M
-
- Zoom
- ati3
- V1.200 TR14-Jxxx-001 049
-
- ===============================================================
-
-
- >From pep Mon Nov 2 09:05:14 1992
- Date: Mon, 2 Nov 92 09:05:13 CST
- From: pep (Paul Platt)
- To: derek@morris.b17d.ingr.com@meson
- Subject: Re: modems not Rockwell
- Cc: pep
- Content-Length: 3766
- Status: RO
- X-Lines: 84
-
-
- >From what I hear USR modems work well. They tend to be overpriced.
- Other modems I hear great things about are AT&T and Motorola (UDS).
-
- My comparison was based on what I could get my hands on. I had the Gateway
- which wasn't working out. I kept getting told it was my phone lines. The
- phone company came out twice and said things were ok. We had a Zoom at
- work but it was having problems similar to the Gateway's. I couldn't
- even get the Gateway to talk to the Zoom on a local call! A guy who
- works for me got a Supra and was able to get in. The people we used the Zoom
- to link to got so fed up they bought a ZyXEL 1496E. That is when I decided
- that I needed to do some comparison testing. I read the Mac User article
- (Nov. issue) but didn't think their testing pushed the top modems enough.
- I got the S model ZyXEL on a 30 day money back guarantee on the BBS screen
- special. Would have loved to have had a USR Dual to test. A Sportster would
- also have been nice.
-
- More thoughts:
-
- Gateway Telepath is hopeless. AVOID
-
- Zoom is poor in its present form and they seem to be waiting on Rockwell
- to solve their problems.
-
- Supra is the best of the Rockwell modems but still has problems. Packaging is
- excellent - small, attractive, functional. Very good display.
-
- Avoid the Rockwell based modems. I know, preaching to the converted.
-
- PPI is getting there. GREAT display especially for the price. Limited
- feature set, however.
-
- USR - expensive, people seem to love them, the thousands of BBSs can't
- be wrong. Limited feature set.
-
- AT&T, UDS - expensive. What your business should buy. AT&T gets PROM
- updates via modem download directly to the EEPROM. GREAT IDEA! UDS has
- a 24.4K speed in a $900 (street price) modem and the mode WORKS! UDS on
- that modem offers a FREE upgrade to v.fast when the definition is completed.
- Like I said, what I would recommend to a company. Few side features. These are
- modems period.
-
- ZyXEL - best feature set. Voice lacks good software but second party software
- is currently being worked on. Works well. There is a problem with Microsoft
- support BBS. Earlier PROM releases were ok. ZyXEL is being open that they
- also see a problem with that one connection. They seem very dedicated to
- solving the problem. S model has the best display I have ever seen.
- Callback secureity, leased line (S model), scope outputs (S model option),
- FAX, caller ID, distinctive ring, DTMF decoding (many possibilities here -
- `if you want blah press 3...', voice recording and transmit, 16.8K speed,
- future 19.2K speed (+ models only). See Nov Boardwatch Magazine. FAST
- speed shifts especially ZyXEL to ZyXEL. This is seperate from a retrain and
- works very well. The S model display is like a piece of test gear and
- has let me debug my line problems. I feel much better knowing what
- the conditions are at any time
-
- S display:
-
- connect speed
- error correction and compression mode
- DTE speed
- instantaneous bit rate both receive & transmit
- selection to hang up using front panel (in case software locks)
-
- <next screen>
- phase jitter
- frequency offset
- received signal strength
- signal to noise ratio on line (wow does mine move around a lot)
-
- <next screen>
- retrains granted (retrain requests from other modem)
- retrains done
- echo delay
- CL (can't remember what this one does. I think it involves leased
- line operation and counts disconnects on the line)
-
- <other screens>
- other screens allow complete control from the front panel including security
- features, S registers, dialing, .......
-
- Sorry about the long winded reply but ZyXEL is a young, small company that
- is trying hard and isn't very well known. A year ago their modems were
- interesting but with real problems. Most of those are gone and it is a
- very useful product. They have come a long way.
-
- =========================================================================
-
- All new S models (some old ones may be at dealers) are now S+ models.
- They have a sticker saying "Plus Enhanced". The upgrade is to faster
- components including a change from a 12MHz 68000 to a 16MHz 68000.
- A PROM upgrade should offer a 19.2K modem around Jan timeframe.
- Non-plus models will not be able to run at 19.2K. Not that I think they
- have kept the E as a cheaper model seperate from the E+. Careful on the
- B models since older ones have smaller PROMs that can't store latest codes.
- The update is a $50 board mod. Latest B+ models have sockets with
- the extra address line connected.
-
- ZyXEL has a problem that can cause flakiness at 16.8K but a fix is in beta
- test.
- It will be a PROM update.
-
- Voice support is poor but SoftKlone (make the Mirror communications package)
- is working on an integrated voice/fax/data com package. They are testing
- it with a ZyXEL.
-
- Speaker volume, particularly on voice, needs to be louder. ZyXEL is aware of
- this.
- Personally, I have no problem with the speaker volume under normal
- usage (some people want more) but I haven't used voice very much.
-
- ========================================================================
-
- Article: 25138 of comp.dcom.modems
- Path:
- netcom.com!netcomsv!decwrl!sun-barr!cs.utexas.edu!zaphod.mps.ohio-state.edu!sai
- miri.primate.wisc.edu!sdd.hp.com!elroy.jpl.nasa.gov!lll-win--Moreken!angmar!scr
- iv
- From: scriv@angmar.llnl.gov (Mark Scrivener)
- Newsgroups: comp.dcom.modems
- Subject: RE: Straw Poll of Supra and ZyXEL
- Keywords: Straw Poll, Supra, ZyXEL
- Message-ID: <140718@lll-winken.LLNL.GOV>
- Date: 5 Nov 92 19:30:18 GMT
- Sender: usenet@lll-winken.LLNL.GOV
- Organization: UC LLNL
- Lines: 349
- Nntp-Posting-Host: angmar.llnl.gov
- Status: RO
-
-
- Well the results are in! I'd like to thank everyone who took time to
- respond. In my initial post, I asked people to rate the Supra and the
- ZyXEL modems on a scale of -10 (worst) to +10 (best). Here are the results:
-
- Total responses: 40
- Total Supra: 27
- Total ZyXEL: 13 (Note: some people scored both modems,
- for purposes of the total I counted
- this as 2 responses.)
-
- Supra average: +5.8
- Supra SDev 4.1
-
- ZyXEL average: +8.2
- ZyXEL SDev 1.2
-
- A histogram of responses follows:
-
- Score Supra (#) ZyXEL (#)
- ----- -------- --------
- -10 0 0
- -9 0 0
- -8 0 0
- -7 0 0
- -6 1 0
- -5 0 0
- -4 1 0
- -3 0 0
- -2 1 0
- -1 0 0
- 0 0 0
- 1 1 0
- 2 0 0
- 3 0 0
- 4 1 0
- 5 3 1
- 6 3 0
- 7 5 1
- 8 5 4
- 9 3 7
- 10 3 0
-
- Those persons who scored both modems ALWAYS scored the Supra LOWER than
- the ZyXEL (the lowest ZyXEL score was a +5, and this person gave the
- Supra a +1).
-
- It seems that the Supra is a good modem for the money, but it has some
- flaws (gets hot, latches up, sometimes has problems with connections,etc).
- If you have good phone lines, don't plan on unattended operation, need
- special protocalls, and are willing to tollerate the ocasional glitch,
- then the Supra might be a good deal for you.
-
- The ZyXEL, however, appears almost bullet proof. If you want the next
- best thing to perfection and don't want to pay out the nose for it,
- buy a ZyXEL (or so say our survey respondants). Other benifits of the
- ZyXEL included better customer support, instant free ROM upgrades via
- down-loadable ROM images (provided you can burn your own ROMs), and a
- 68000 with 2 DSP chips (providing a much more flexable engine than the
- Rockwell ASICs in the Supra).
-
- I've included a response I got that gave a nice comparision of several
- modems, including the Supra and the ZyXEL. The respondant (sorry, don't
- know his name) tested each modem and then ranked it on the -10 to +10
- scale. His results agree with the survey.
-
- -Mark
-
-
- ========================================================================
-
- ::::::::::::::
- zyxel_review_nonpep.txt
- ::::::::::::::
-
- From: josephs@msen.com (Joseph Stroup)
- Newsgroups: comp.dcom.modems
- Subject: ZyXEL Report
- Date: 1 Jan 1993 12:06:28 -0500
- Organization: Msen, Inc. -- Ann Arbor, Michigan
- Distribution: world
- NNTP-Posting-Host: garnet.msen.com
-
- I just finished testing the Zyxel U-1496E v.32b/fax/voice modem.
-
- I don't care if every feature works but, I needed a fast and good
- v32b connection. The modem works. I called the company, bought it
- direct , paid cash and got it next day. I have seen no problems
- on all major long distance carriers, local carriers, BT, OTC and
- one line I call in Japan. I have inbound 0800 free-phone access
- to my commercial system from 6 countries and no problems. I tried
- to vary the voltages to the modem - no problem. I cut power, caused
- surges and even droped the thing - No problem. I own USR and Telebit.
- How fast is fast. The price is right and they answer their phone. I asked
- for a replacement guarantee not a 15 day repair time and they agreed.
- With USR I must send in red lable UPS to get fast service - generally
- 2 days. One of my friends just drove to the company they treated him
- great.
-
- Now on my list of junk...
- Supra - Zoom - Quicktel and other junk. Things like Infotel/Midwest Micro
- don't even count.
-
- The bottom line the modems work for now, 24hrs 7 days a week. If I do have
- problems I will post.
-
- Final Note: Egghead Software admits that Zoom modem fails. They just placed
- an order with ZyXEL.
- --
- Joseph Stroup
-
-
- ========================================================================
-
- ::::::::::::::
- zyxel_dealers.txt
- ::::::::::::::
-
- From: aron@garnet.berkeley.edu (Aron Roberts)
- Newsgroups: comp.dcom.modems
- Subject: Places to purchase ZyXEL modems
- Date: 8 Dec 1992 20:59:15 GMT
- Organization: University of California, Berkeley
- Distribution: na
- NNTP-Posting-Host: garnet.berkeley.edu
-
- With the numerous mentions here in the comp.dcom.modems newsgroup
- of ZyXEL's line of modems, I thought that sharing the following
- information might prove helpful to someone, particularly since
- it appears that the computer products dealers that many of us are
- most familiar with do not currently carry ZyXEL's products.
-
- David L. Gibbs (gibbsdl@ornl.gov) generously sent me a list of
- some dealers that carry the ZyXEL modems. In compiling this list,
- he received contributions from ??? (wbe@bbn.com), Larry Sher
- (sher@bbn.com), and Paul Levin (paul@count.tct.com), as well as
- Joy at ZyXEL USA, (800) 255-4101, or (714) 693-0808:
-
- CTS (615) 966-3667
- Golden Everstar (714) 594-4168
- Boston Computer (617) 551 0166
- The Questor Project, Vancouver, BC (604) 682-6659
- Steve Pershing, sp@questor.org
- Eagle Computing, Newark, DE (302) 657-9303
- Chris Pyrros, pyrros@cis.udel.edu
- SI Services, Philadelphia, PA (?), (215) 675 7507
- The Whitman Group, (301) 897-8064, (301) 424-7844
- Joshua Adler
-
- (There was a mention of another dealer in California, Kandy Shack,
- that carries this modem line; I have not yet tried to obtain contact
- info for that dealer.)
-
- Dave Gibbs also mentioned that the lowest price he found on the
- Zyxel 1496E (?--he didn't mention the specific model) was $349 plus
- shipping, although an unnamed BBS sysop local to him was offering
- him a $348 price. Steve Pershing at The Questor Project is selling
- this model for $350 plus $12 shipping per modem.
-
- Barton F. Bruce (Barton.Bruce@camb.com) will sell these modems
- in quantity, usually but not necessarily as a result of a consulting
- relationship between his consulting/integration firm and a customer.
- His firm offers binary PROM images and other information (such
- as specs and Q&A sheets) about ZyXEL modems via anonymous ftp
- from cca.camb.com ("or probably just camb.com"), in the zyxel
- directory there.
-
- --
- Aron Roberts Workstation Software Support Group . 221 Evans Hall
- University of California, Berkeley, CA 94720
- aron@garnet.berkeley.edu . ucbvax!garnet!aron
- aron@ucbgarne.bitnet . (510) 642-5974 . fax: (510) 643-5385
- ok--pep[104]
-
-
-
-
- ========================================================================
-
- ::::::::::::::
- zyxel_details.txt
- ::::::::::::::
-
- The U-1496 Series Universal Modem
-
-
- U-1496+ External stand-alone model with 20x2 LCD display and menu
- control. Includes 4 W leased line support and 16800 data,
- upgradable to ZyXEL 19.2 Kbps, 14400 Fax with Voice.
-
- U-1496 External stand-alone model with 20X2 LCD display and menu
- control. Includes 4 W leased line support and 16800 data,
- 14400 Fax with Voice.
-
- U-1496E+ External stand-alone model with LED status display. Includes
- 2-wire leased and dial-up line application, with 16800
- data upgradable to ZyXEL 19.2 Kbps, 14400 Fax with Voice.
-
- U-1496E External stand-alone model with LED status display. Supports
- 2-wire leased and dial-up line application, with 16800 data
- 14400 Fax with Voice.
-
- U-1496B/144 PC internal card version. Supports 2-wire leased and dial-up
- line application, with 14400 data, 14400 Fax.
-
- U-1496B/168 PC internal card version. Includes 2-wire leased and dial-up
- line application, with 16800 data, 14400 Fax and Voice.
-
- U-1496R Rackmount version modem card, supports 2 W leased and dial-up
- line, 16800 data upgradable to ZyXEL 19200, 14400 Fax with
- Voice. Can be controlled by local NMS.
-
- U-1496RN Rackmount version modem card, supports 4/2 W leased and dial-up
- line, 16800 data upgradable to ZyXEL 19200, 14400 Fax with
- Voice. Can be controlled by local and remote NMS.
-
- RS-1600 Rack System Chassis with 16 modem slots and 40 X 4 LCD display
- and Menu Tree, single power supply.
-
- RS-1600N Rack System Chassis with 16 modem slots and 40 X 4 LCD display
- and Menu Tree, with redundant power supply (1993/1q) and NMS
- control card, NMS software (1993/1q).
-
- Compatibility
-
-
- The ZyXEL U-1496 series modem is a high performance universal modem capable
- of transmission speed of up to 19.2/16.8 Kbps on a 2-wire full duplex mode.
- Universal compatibility covers a broad range of CCITT and BELL standards,
- and provides data compression and error free transmission.
-
- Various operation modes that can be achieved are listed in the following
- table:
-
- Bit rate Baud rate Modulation Carrier
- (+/-0.01%) (+/-0.01%) Freq
- bps baud Hz
-
- ZyX 19200 19,200
- ZyX 16800 16,800
- V.33 14,400 2400 128-TCM 1800
- V.33 12,000 2400 64-TCM 1800
- V.32bis 14,400 2400 128-TCM 1800
- V.32bis 12,000 2400 64-TCM 1800
- V.32bis 9,600 2400 32-TCM 1800
- V.32bis 7,200 2400 16-TCM 1800
- V.32 9,600 2400 32-TCM 1800
- V.32 uncoded 9,600 2400 16-QAM 1800
- V.32 4,800 2400 4-DPSK 1800
- V.29 9,600 2400 16-QAM 1700
- V.29 7,200 2400 8-QAM 1700
- V.29 4,800 2400 4-DPSK 1700
- V.27ter 4,800 1600 8-PSK 1800
- V.27ter 2,400 1200 4-DPSK 1800
- V.22bis 2,400 600 16-QAM 1200 Orig.
- 2400 Ans.
- V.22 1,200 600 4-DPSK 1200 Orig.
- (BELL 212A) 2400 Ans.
- G3 Fax implemented according to T.30, V.17, V.29 and V.27ter.
-
- 1800 Hz guard tone for V.22bis/V.22 answer mode, 6 dB below data signal level.
-
- Note: The U-1496R, U-1496E, U-1496E+, and U-1496B do not support the
- V.33 14.4/12.0, V.29 9.6/7.2/4.8, or V.27ter 4.8/2.4 Kpbs standards.
-
- All models have the G3 Fax send and receive capability with PC Fax software
- Mac software available as an option.
-
-
- The U-1496 Series Standard Features
-
- Synchronous/Asynchronous operations for external stand-
- alone model and rackmount model.
-
- Asynchronous operations for PC internal card model.
-
- MNP class 3/4/5 error correction/data compression.
-
- V.42/V.42bis error correction/data compression.
-
- Extended AT command set.
-
- V.25bis command set. (Not available on U-1496B)
-
- Operate on 2-wire dial-up line or 2/4-wire leased line.
- (4-wire leased line on U-1496, U-1496+, and U-1496R only)
-
- Auto-dial/answer and Manual originate/answer.
-
- Tone/Pulse dialing.
-
- Dial tone, busy, and ringback detection.
-
- Programmable speaker volume control.
-
- Non-volatile memory storage.
-
- Diagnostics available for:
- Modem full self test
- Analog loopback (w/ self test)
- Remote digital loopback (w/ self test)
- Digital loopback
-
- XON/XOFF or RTS/CTS flow control.
-
- Line status monitoring available for: (U-1496, U-1496+, U-1496R)
- Signal-to-noise ratio
- Receive signal level
- Frequency offset
- Phase jitter
- Retrain granted
- Retrain requested
- Round trip echo delay
- Carrier loss counter
-
- 20 X 2 LCD display and directional keypads. (U-1496, U-1496+)
-
- G3 Fax capability.
-
- Caller ID (CND) support
-
- Distinctive Ring
-
- Voice Digitizing
- ADPCM 3 bit 28800 bps
- ADPCM 2 bit 19600 bps
- CELP 9600 bps (only in Plus models)
-
-
-
- MODEM FEATURE CHART
- ZyXEL ZyXEL ZyXEL ZyXEL ZyXEL
- U-1496+ U-1496 U-1496B U-1496E+ U-1496E
-
-
- Physical EXT EXT INT EXT EXT
-
- External Model V V V V
- Internal Model V
- Number of LED lights 6 6 N/A 12 12
- Full LCD Menu Tree V V
-
- Speed and Compatibility
-
- ZyXEL 19.2 Kbps * *
- ZyXEL 16.8 Kbps V V Opt. V V
- V.32bis 14.4, 12.0, 7.2 kbps V V V V V
- V.32 9.6, 4.8 kbps V V V V V
- V.23 1200/75 bps V V V V V
- V.22bis 2400 bps V V V V V
- V.22/BELL 212A 1200 bps V V V V V
- V.21/BELL 103 300 bps V V V V V
- V.33 14.4, 12.0 kbps V V
- V.29 9.6, 7.2, 4.8 kbps V V
- V.27ter 4.8, 2.4 kbps V V
- HST 14.4, 12.0, 9.6, 4.8 kbps
- G3 FAX, 9.6 kpbs V V V V V
- G3 FAX, V.17 14,400 kbps V V V V V
- EIA Class 2 FAX Standard V V V V V
- Asynchronous Transmission V V V V V
- Synchronous Transmission V V V V
- Dynamic Online Full back/forward V V V V V
- Auto Speed Detect V V V V V
-
- Error Correction/Data Compression
- MNP 3-4 V V V V V
- MNP 5 V V V V V
- V.42 V V V V V
- V.42bis V V V V V
-
- Throughput / DTE rate
-
- Max. Throughput Possible (K) 76.8 57.6 57.6 76.8 57.6
- DTE speed (K) (max) 76.8 57.6 57.6 76.8 57.6
-
-
-
- ZyXEL ZyXEL ZyXEL ZyXEL ZyXEL
- U-1496+ U-1496 U-1496B U-1496E+ U-1496E
- Operation Mode
-
- 2-Wire Dial Up V V V V V
- 2-Wire Leased V V V V V
- 4-Wire Leased V V
- Dial Backup V V
-
- Diagnostic Modes
-
- Remote Digital Loopback V V V V V
- Analog Loopback V V V V V
- Digital Loopback V V V V V
- On line, line condition monitoring V V
- Read/Write Remote Configuration V V V V V
- Reset Remote Configuration V V V V V
-
- Security
-
- Password Protection V V V V V
- Automatic Call Back V V V V V
-
- Other
-
- Caller ID (CND) detection V V V V V
- Distinctive Ring V V V V V
- Voice Digitizing V V Opt. V V
-
- Also Included
-
- Telephone Cord (RJ-11) V V V V V
- RJ-45 Cord V V
- AC Power Adaptor V V V V
- Communication Software
- ZFAX Voice and Fax Utility V V V V V
- Warranty, Parts and Labor (years) 5 5 5 5 5
- Money Back (days) 30 30 30 30 30
-
- V = Standard Feature
- * = Can be upgraded
- Opt. = Optional
-
- List Price $989 899 449 649 469
- 469 for U-1496B/168
-
- U-1496R has features that are similar to U-1496E+ and U-1496RN has features
- that are similar to U-1496+, both U-1496R and U-1496RN will utilize the
- 40 X 4 LCD display and Menu Tree that come with the Rack.
-
- U-1496R $ 899
- U-1496RN $ 1099
- RS1600 $ 1299
- RS1600N $ 1950
-
-
-
-