|
|
PDF XE2476 Data sheet ( Hoja de datos )
| Número de pieza | XE2476 | |
| Descripción | 2400 bps Plug-In Upgrade to CH1776 | |
| Fabricantes | xecom | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de XE2476 (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
|
No Preview Available !
xecom
XE2476
3-8-94
2400 bps Plug-In Upgrade to CH1776
Description
Xecom's XE2476 is a low cost, 2400 bit per
second plug-in upgrade to the 1200 bps
CH1776. The XE2476 features the same
pin configuration, lead spacing and case size
as the CH1776. It also includes its own
user transferable FCC Part 68 registration.
Industry standard "AT" commands provide
modem control and configuration. The
XE2476 was specifically designed to provide
users of the CH1776 a quick, easy and low
cost upgrade to 2400 bits per second. Most
OEM's currently using the CH1776 can use
the XE2476 to upgrade their systems from
1200 bps to 2400 bps without alterring the
existing design.
Block Diagram
Features
• Supported Protocols: V.22bis, V.22, V.21,
Bell 212A and 103
• Pin compatible with the 1200bps CH1776
• Command set: "AT" command set for
modem control and configuration.
• Identical physical dimensions to CH1776:
2.00 inches long, 1.125 inches wide, 0.44
inches high.
• Single +5V supply
• Low power CMOS:
Operating: 250 mW (Typ.)
Sleep mode: 50 mW (Typ.)
PIN CONFIGURATION
/HS
/CMD
/AAD
/DCD
/DTR
D/V
OHO
RXD
TXD
TEST
SPK
VO
VI
1 18
2 17
3 16
4
5
6
7
XE2476
(Top View)
8
9
10
11
12
13
RI
GND
VCC
15 RING
14 TIP
Free Datasheet http://www.datasheet4u.com/
1 page  
Command Line Editing - The backspace can be used to edit a command line before it is
executed. The backspace key, (Control and H simultaneously on some systems), erases
the previous character in the command line. Register S5 allows the user to select a
character other than a backspace to edit the command line.
Re-Execute Last Command - The A/ command causes the modem to reexecute the last
command line. This is the only command which does not require the "AT" prefix.
Ommitted Parameters - Most commands include a parameter which determines how the
functions will be set. When the command parameter is omitted from the command string, it
is assumed to be a 0.
Escape Characters - A 3 character escape sequence maybe entered while in data mode to
switch the modem into command mode while on line. The escape character, set by Register
S2, must be entered 3 times in succession within a 1 second guard time to execute the
escape. The default escape sequence is "+++."
Result Codes - The modem issues a result code after each action. Result codes may be
provided as full words, numeric codes or may be disabled all together. Each result code
ends with a carriage return when numeric resul codes are chosen. When full word result
AT Command List
An asterisk indicates the factory default
A - Answer Command -
Bn - Select Communications Standard
n=0 Selects CCITT standards
n=1 Selects Bell standards*
D - Dial Command -
P = Pulse dial
T = Tone dial
R = Connect as an answering modem
W = Wait for dial tone
, = Pause for the duration of S8
@ = Wait for silence
! = Switch hook flash
; = Return to the command state
En - Command Echo
n=0 Do not echo commands
n=1 Enable command echo*
Hn - Switch Hook Control -
n=0 Switch hook relay closes*
n=1 The switch hook relay opens
In - Modem Identification
Ln - Speaker Volume -
n=0 Low speaker volume
n=1 Low speaker volume
n=2 Moderate speaker volume*
n=3 High speaker volume
XE2476
XECOM\5
Free Datasheet http://www.datasheet4u.com/
5 Page 
FCC Instructions
This product complies with part 68 of the FCC Rules and Regulations. With each device shipped, there
is a label which contains, among other information, the FCC Registration Number and Ringer
Equivalence Number (REN) for this product. You must, upon request, provide this information to your
telephone company.
The mounting of this device in the final assembly must be made in such a manner as to preserve the
high voltage protection between the TIP/RING Connection and the rest of the system. Typically, this
may be accomplished by maintaining a minimum spacing .100 mils between the TIP/RING Traces to
the RJ-11C Jack and low voltage portion of the system. No additional circuitry may be attached
between TIP/RING and the telephone line connection, unless specifically allowed in the rules.
The REN is useful to determine the quantity of devices you may connect to a telephone line and still
have all of these devices ring when the number is called. In most, but not all areas, the sum of the
RENs of all devices connected to one line should not exceed five (5.0). To be certain of the number of
devices you may connect to the line, as determined by the REN, you should contact the local telephone
company to determine the maximum REN for you calling area.
If your system causes harm to the telephone network, the telephone company may discontinue service
temporarily. If possible, they will notify you in advance. If advance notification is not practical, you will
be notified as soon as possible.
Your telephone company may make changes in its facilities, equipment, operations or procedures that
could affect proper functioning of your equipment. If they do, you will be notified in advance to give you
an opportunity to maintain uninterrupted telephone service.
If you experience trouble with this device, please contact XECOM at (408) 945-6640 for information on
obtaining service or repairs. The telephone company may ask you to disconnect this device from the
network until the problem has been corrected or until you are sure that the device is not malfunctioning.
The device may not be used on coin service lines provided by the telephone company (this does not
apply to private coin telephone applications which use standard telephone lines). Connection to party
lines is subject to state tariffs.
FCC Registration Number: DWEUSA-_ _ _ _ _-FA-E
Ringer Equivalence: _._B
XE2476
XECOM\11
Free Datasheet http://www.datasheet4u.com/
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet XE2476.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| XE2476 | 2400 bps Plug-In Upgrade to CH1776 | xecom |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |