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PDF XE1414C-ITR Data sheet ( Hoja de datos )
| Número de pieza | XE1414C-ITR | |
| Descripción | Worldwide 14.4 KBPS Modem Module for Embedded Applications | |
| Fabricantes | ETC | |
| Logotipo |  |
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XE1414C
5/2002
Worldwide 14.4 KBPS Modem Module for Embedded Applications
Description
Features
Xecom's XE1414C is a complete, 14.4 Kbps modem in a
single component. Xecom designed the XE1414C for
use throughout North America, Europe and Japan. It
includes user transferrable FCC Part 68 Registration for
• Meets telecom requirements for Europe, North
America, and Japan: Includes User Transferrable FCC
Part 68 Registration and CTR21 compliance
• Small Size: 2.75 inches by 1.38 inches by 0.42 inches;
direct connection to telephone lines in the United States • Modem Protocols support data transfer from 300
and is compliant with CTR21.
BPS to 14.4 KBPS: V.32bis, V.32, V.22bis, V.22, V.21,
Bell 212A and 103;
The XE1414C is a complete modem packaged in a
compact module. The XE1414C includes all required • Modem Control and Configuration via AT Commands
modem circuits including the DAA. XE1414C users do • Fax Protocols: V.17, V.29, V.27ter, and V.21 channel 2
not need to add RAM, ROM, Crystals, low distortion • Error Correction; V.42, MNP2-4 and MNP10
transformer, or switches to complete the modem design. • Data Compression; V.42bis and MNP5 provides a
The user only needs to provide the TTL level, serial maximum effective data rate of 57,600 bps.
interface and the telephone line connection.
• Non-Volatile Memory included for storing telephone
The XE1414C is pin compatible with Xecom's XE3314C numbers and modem configuration.
modem. This family of modems permits a simple • Standard operating temperature range 0C to 70C.
upgrade path from 14,400 bps to 33,600 bps for Extended range of -40C to +85C is available.
international embedded modem applications.
• Supports Leased Line Applications.
Serial I/O
/DTR
/RTS
/CTS
/DSR
TXD
RXD
/DCD
Auxiliary I/O
RESET
AR
LCS
OH
AMP
L1
L2
Modem
Controller
Block Diagram
ROM
NVRAM
Analog
Front
End
DAA
Tip
Ring
XECOM
(1) XE1414C
1 page  
XE1414C Typical Connection Diagram
L1 XE1414C
L2
/RXD
/TXD
/DTR
/RTS
/CTS
/DSR
/DCD
/RI
16C550
UART
FB1
J1
C1
FB2
C2
Ring
Tip
.2 ufd
AMP
GND
50K
LM386
.05 ufd
10 ohms
250 ufd
8 ohm,
.5 W
speaker
Recommended Parts
Reference Designation
FB1, FB2
C1, C2
J1
Description
Ferrite Beads
Capacitors
RJ11 Jack
Recommended Part Number
TDK ACB2012L-120-X
Panasonic ECKDRS471, 470 pfd, 2600 Volts
Stewart SS6446NF
Notes: 1) RJ11 Pin assignments reflect a 6-pin connector. Tip and Ring are always the center pins of the RJ11
Jack.
2) CTR21 requires the modem to be able to dissapate over two Watts in come applications where the integral
current limiting circuit is activated. The XE1414C requires a heat sink to be added to dissapte this addi-
tional power.
XECOM
(5) XE1414C
5 Page 
XE1414C AT COMMANDS (continued)
\Bn - Transmit Break - AT\Bn selects the duration of the
break signal sent. Break = n x 100 msec.
\Kn - Break control - AT\Kn determines how the modem will
handle a break signal received from the host.
Break received from host in data transfer mode.
n=0 Enter on-line command mode; do not transmit
break
n=1 Purge buffers, immediately transmit break
n=2 Same as n=0
n=3 Immediately send break
n=4 Same as n=0
n=5 Send break in sequence with data *
Break received from the host during the on-line com-
mand mode.
n=0 Purge buffers, immediately transmit break
n=1 Same as n=0
n=2 Immediately send break
n=3 Same as n=2
n=4 Send break in sequence with data
n=5 same as n=4 *
Break received from modem during a non-error cor-
rected link
n=0 Purge buffers, Immediately send break to host
n=1 same as n=0
n=2 Immediately send break to the host
n=3 Same as n=2
n=4 Send break in sequence with data.
n=5 Same as n=2*
\Nn - Error Control Selection - AT\Nn determines how the
modem will handle error control negotiations.
n=0 Normal mode, no error correction
n=1 Direct mode, no buffering, no error correction
n=2 Reliable mode, error correction required
n=3 V.42 Auto-reliable mode, accept either an error
controlled or non-error controlled link*
n=4 V.42 Reliable mode, LAPM required
n=5 MNP required
/V<value> - Single Line Connect Messages - This command
allows users to select single line connect messages in the for-
mat shown below.
<DTE Speed> <Modulation> <Protocol> <Compression>
<Line Speed> <Voice & Data>
n=0 No single Line Connect Messages
n=1 Issue a complete response in a single line
-Kn - MNP Extended Services - AT-Kn determines how the
modem handles MNP10.
n=0 No LAPM to MNP10 conversion
n=1 LAPM to MNP10 conversion*
n=2 LAPM to MNP10 conversion no MNP Extended
Service during V.42 LAPM answer mode detect.
+GCI=nn - Country Code - The AT+GCI command sets the
country code to be sued by the modem. See the country listing
on Page 6 for the appropriate country code for your application.
The Default country code is B5, United States.
+MS - Select Modulation - AT+MS sets the modulation and
data rates to be supported by the modem. The format for the
+MS command is shown below.
AT+MS=a, b, c, d, e, f<CR>
a - modulation type
B103 - Bell 103 (300 BPS)
B212 - Bell 212A (1200 BPS)
V21 - V.21 (300 BPS)
V22 - V.22 (1200 BPS)
V.22B - V.22bis (1200 or 2400 BPS)
V23 - V.23 (1200 Tx / 75 RX or 75 Tx / 1200 Rx)
V32 - V.32 (4800 or 9600 BPS)
V32B - V.32bis (4800 to 14,400 BPS)
b - Automode Detection
0 - Automatic Negotiation Disabled
1 - Automatic Negotiation Enabled
c - Minimum Receive Data Rate (300 to 14400 BPS)
d - Maximum Receive Data Rate (300 to 14400 BPS)
e - Minimum Transmit Data Rate (300 to 14400 BPS)
f - Maximum Transmit Data Rate (300 to 14400 BPS)
Default: AT+MS=V32B, 1, 300, 300, 300, 14400
XECOM
(11) XE1414C
11 Page | ||
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