On Fri, 23 Mar 2001, Mukund wrote:
||Now internal modem derives power from PC power supply only. Given the
||reputaion of indian government service, how safe internal modems are, from
||passing the surge to the Mobo?
|
|All modems have varistor which protects the circuit from the surges, in
|addition to isolation transformer which isolates the telephone line and
|internal circuit.
Last week , my external modem blew up due to some surge from the phone
line !! My phone gave a ring and went out of order!! and it rectified it
self in about an hour ! but then I discovered that my modem is dead... the
AT commands and modem lights work ... but it can't dial out!
(had a similiar experience once when a modem was connected thru an epabx
and a shortcircuit blew up the whole ebapx system... the modem blew up
with a flash of light !! )
Kingsly
.:: Kingsly John ICQ 14787510 ::.
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.:: Linux 2.4.2 #8 Wed Feb 28 12:41:38 IST 2001 i686 ::.
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