GRUPP@AI.AI.MIT.EDU.UUCP (02/17/87)
Date: Saturday, 24 January 1987 23:14-MST
From: uhccux!todd at NOSC.MIL (The Perplexed Wiz)
I'm thinking of getting the WorldLink 1200 modem (Touchbase Systems)
for my portable computers (NEC MultiSpeed, HP110, Tandy Model 100).
The modem is 4"x2"x1", runs on a 9v battery, and is Hayes compatible.
The list price is $199...
If anyone in netland has used this modem, I'd like to hear/read what
you think of it...thanks...todd
-----
I use one of these and recommend it highly. I have a remote system
with a *real* Hayes Smartmodem 1200 and the WorldLink 1200 is the ONLY
other modem I've been able to use with the system! (software/hardware
gives the modem a real workout)...
Features;
- 100% of Hayes "AT" command set implemented and work exactly the same
as on a Hayes with the same defaults. [yes, ATH2 will busy out the line]
- Has RS-232 status lines for CD (carrier detect), RI (ring),
DSR (data set ready), CTS (clear to send) and SDCD/CI (high speed
indicator) [note SDCD/CI is TTL level not RS-232]
- Switch selectable disconnect on loss of RS-232 DTR (data terminal ready)
[this allows you to disable the +++ escape and use DTR to hang up]
- mini jacks for either Radio Shack acoustic cups (work at 1200!) and or
external 9 volt power supply. [standard RJ-11 jack, of course]
- along with Bell 103A/212A it also has CCITT V.21 and V.22 either switch
or software selectable.
- auto power down at DTR drop (if switch selected) and always when
RJ-11 and RS-232 connectors are removed (from either end on both).
- additional AT commands include;
! flash line
/ wait for 1/8 second
@ wait for second dial tone
B (or B0) CCITT
B1 Bell 103/212A
X2 enable dial tone detection
X3 enable busy signal detection
X4 enable both diall tone and busy signal detection
mis-features;
- only has LEDs for low battery, high speed, carrier detect, and
call progress [lights with sound on line, replaces speaker]
- missing some of the Hayes switches, but these are software settable
and power up with the Hayes "factory default" settings.
- high quality 9V battery only lasts for 10 Hrs of connect time [but
how long will the same battery power your modem?]
Mail any questions/replies directly to me as I'm not on this list. I
checked it out when announced but found the signal/noise ratio poor.
-Paul