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Monster Media 1993 #2
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LEASED2.A
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1993-07-02
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48 lines
LEASED LINE SUPPORT Zoom/modems
Those Zoom/modems with leased line capability require MANUAL connect
at the beginning of a connection. The manual connect is by typing ATX1D
(originate) and ATA (receiving modem). The line must be a 2-wire leased
line. You also may use a ring-down or voice leased line. This kind of line
RINGs when one end is taken off-hook. Then you may use AA (AutoAnswer
ATS0=1) or let the software answer the RING on the receiving end. You Still
use the ATX1D on the originate modem. If you use a 'RING' generator on a
leased line, the AA (or software answer) will work on a non-ring-down line.
If you use %E2 (V32bis models) the modems will re-train automatically
while on-line, if conditions warrant. You may want to set S10=255 so the
modem will never hang up if carrier is lost.
>> On the V32(bis) modems do NOT use &L1 command (keep default &L0). <<
A LEASED LINE normally is just an open line with NO DIALTONE & no
RING, connected at all times. A modem will not AutoAnswer if there is no
RING into the modem. There is a cheap part, which with a momentary
pushbutton & 5vdc input, will output a 5 watt RING, so should work with a
normal leased line.
##include=ringgen.tif
You just push the button at the same time you dial with the local
modem, and the modem on the other end will AutoAnswer (ATS0=1&W). You dial
with ATX1D because there is NO DIALTONE and X1 tells the modem to ignore
dialtone.
Cambridge Electronics, Sommerville Mass. makes this device. a Micro
Module UU-BMR $33, 5-pc $29 (can be had w/ either 5vdc or 12vcd input).
Phone # 617-629-2805. You can get the push button from Radio Shack.
****************************************************************************
NOTE: devices added to your phone line should be reported and approved by
the phone company.
****************************************************************************
Don Hinds - Zoom Tech
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