XE2422H Просмотр технического описания (PDF) - Unspecified
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XE2422H Datasheet PDF : 20 Pages
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XE2422H Pin Configuration
Top View
Tip 1
Ring 2
/DCD 3
/DTR 4
/RI 5
Reserved 6
GND 7
13
VCC
12
/INT
11
/CTS
10
/RESET
9
RXD
8
TXD
Note: Pin 1 is marked with a white circle on the top of the module
Pin Descriptions
PIN NAME DESCRIPTION
1 Tip
2 Ring
The Ring and Tip signals connect the modem to the telephone line. FCC Part 68 Rules
require a 1500 volt isolation barrier between the telephone line and all other circuits.
This isolation must be preserved throughout the system.
The telephone company places a DC “Battery” voltage across Tip and Ring on public
switched telephone lines. The XE2422H operates regardless of the polarity of this
voltage. The “Battery” voltage drives up to 120 milliampere of DC loop current.
UL60950 requires minimum creepage and clearances distances between the Tip and
Ring traces and all other circuits. Clearance is the shortest distance between conductive
circuits; creepage is the distance between conductive points along the surface
The Ring and Tip signals connect the modem to the telephone line. FCC Part 68 Rules
require a 1500 volt isolation barrier between the telephone line and all other circuits.
This isolation must be preserved throughout the system.
The telephone company places a DC “Battery” voltage across Tip and Ring on public
switched telephone lines. The XE2422H operates regardless of the polarity of this
voltage. The “Battery” voltage drives up to 120 milliampere of DC loop current.
UL60950 requires minimum creepage and clearances distances between the Tip and
Ring traces and all other circuits. Clearance is the shortest distance between conductive
circuits; creepage is the distance between conductive points along the surface.
XECOM
(3)
XE2422H
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