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參數資料
| 型號： | XE2420 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Silver Mica Capacitor; Capacitance:100pF; Capacitance Tolerance:+/- 2%; Series:CD15; Voltage Rating:500VDC; Capacitor Dielectric Material:Mica; Termination:Radial Leaded; Lead Pitch:5.9mm; Leaded Process Compatible:Yes RoHS Compliant: Yes |
| 中文描述： | 2400買表面貼裝綜合密封雜交調制解調器 |
| 文件頁數： | 5/16頁 |
| 文件大?。?/td> | 84K |
| 代理商： | XE2420 |
XECOM
(5)
XE2420
XE2420 Pin Descriptions (continued)
PIN
NAME
DESCRIPTION
19
HI3
HI3 is one of the four hardware hooks for connecting shared line features to the XE2420.
HI3 interfaces to the 911 Interrupt circuit. This circuit detects changes in the loop current
when an extension handset is lifted as when making an emergency call. The system host
should immediately abort the modem connection to permit the user to complete their call.
See the Application Note on Page 10 of this data sheet to see how these line monitoring
circuits interface with the XE2420.
20
N/C
No internal connection, To prevent damage in case of voltage surges on the telephone line, we
recommend that nothing be connected to this pin.
21
N/C
No internal connection, To prevent damage in case of voltage surges on the telephone line, we
recommend that nothing be connected to this pin.
22
Tip
The Ring and Tip signals provide modem the connection 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 all public switched
telephone lines. The XE2420 will operate regardless of the polarity of this “Battery” voltage.
The “Battery” voltage drives up to 100 milliamps of DC loop current.
UL60950 requires minimum creepage and clearances distances be maintained between the
Tip and Ring traces and all other circuits. Clearance is the shortest distance between conductive
circuits; creepage is the distance between conductive surfaces along the surface
23
N/C
No internal connection, To prevent damage in case of voltage surges on the telephone line, we
recommend that nothing be connected to this pin.
24
Ring
The Ring and Tip signals provide modem the connection 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 all public switched
telephone lines. The XE2420 will operate regardless of the polarity of this “Battery” voltage.
The “Battery” voltage drives up to 100 milliamps of DC loop current.
UL60950 requires minimum creepage and clearances distances be maintained between the
Tip and Ring traces and all other circuits. Clearance is the shortest distance between conductive
circuits; creepage is the distance between conductive surfaces along the surface.
相關PDF資料 |
PDF描述 |
|---|---|
| XE2420-ITR | 2400 BPS Surface-Mountable Integrated Sealed-Hybrid Modem |
| XE2476 | 2400 bps Plug-In Upgrade to CH1776 |
| XE2486 | Miniature 2400 bps Modem Module |
| XE3005 | Low-Power Audio CODEC |
| XE3006 | Low-Power Audio CODEC |
相關代理商/技術參數 |
參數描述 |
|---|---|
| XE2420G | 制造商:Cermetek Microelectronics 功能描述:SMALLEST WORLD-WIDE 2400 BPS MODEM |
| XE2420-ITR | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:2400 BPS Surface-Mountable Integrated Sealed-Hybrid Modem |
| XE2422H | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Low-Cost, 2400 BPS Surface-Mount Modem |
| XE2476 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:2400 bps Plug-In Upgrade to CH1776 |
| XE2486 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Miniature 2400 bps Modem Module |
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