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PDF XE3314B Data sheet ( Hoja de datos )
| Número de pieza | XE3314B | |
| Descripción | Modem Module | |
| Fabricantes | Xecom | |
| Logotipo |  |
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XE3314B
June 2000
Low-Cost, Embeddable 33,600 BPS Modem Module
Description
Xecom's XE3314B is a complete, low-cost 33,600 bps
modem in a single component. The XE3314B includes a
transferrable FCC Part 68 Registration and is a UL1950
recognized component.
The XE3314B is a complete modem and includes the
DAA. XE3314B users do not need to add RAM, ROM,
Crystals, transformers, or switches to complete the
modem design. The user only needs to provide the TTL
level, serial interface and the telephone jack.
Features
* FCC Part 68 Registration transferrable to customer’s
system
* UL1950 Recognized Component
* Small Size: 2.75 inches by 1.38" by 0.42"
* Modem Control and Configuration through industry
standard AT Commands.
* Modem Protocols: V.34bis, V.34, V.32bis, V.32,
V.22bis, V.22, V.21, Bell 212A and 103
The XE3314B is a full-featured modem. Besides 33.6
Kbps data transfer, the XE3314B supports data compres-
sion, error correction and fax transfer. The XE3314B
also includes NVRAM for permanent storage of the
modem configuration.
The XE3314B is pin compatible with Xecom's XE1414B
modem. This family of modems permits a simple
upgrade path from 14400 bps to 33,600 bps.
* Fax Protocols: V.17, V.29, V.27ter, and V.21 channel 2
* Error Correction; V.42, MNP2-4 and MNP10
* Data Compression; V.42bis and MNP5 provides a
maximum effective data rate of 133,400 bps.
* Pin compatible with Xecom's XE1414B, XE1414C,
XE3314C and XE5614C.
Serial I/O
/DTR
/RTS
/CTS
/DSR
TXD
RXD
/DCD
Auxiliary I/O
RESET
AR
OH
AMP
Modem
Controller
Block Diagram
ROM
NVRAM
Analog
Front
End
DAA
Tip
Ring
XECOM
(1) XE3314B
1 page  
XE3314B Typical Applications Schematic for US, Canada and Japan
16C450
UART
/DSR
/DCD
SIN
VCC
RXD
/DSR
XXEE3333140B1 /DCD
/DTR
/CTS
SOUT
/RTS
/RI
/DTR
/CTS
TXD
/RTS
/RI
Tip
Ring
AMP
GND
.2 ufd +5 Volts
50K
L2 L1
C1
LM386
.05 ufd
10 ohms
250 ufd
8 ohm .5 W
Speaker
C2
43
Line
J1
Note: RJ11 Pin assignments reflect a 6-pin connector. Tip and Ring are always the center pins of the RJ11 jack.
Recommended Parts
Reference Designation
L1, L2
C1, C2
J1
Description
Ferrite Beads
Capacitors
RJ11 Jack
Recommended Part Number
TDK ACB2102L-120-X
Panasonic ECKDRS471, 470 pfd, 2600 Volts
Stewart SS6446NF
XECOM
(5) XE3314B
5 Page 
XE3314B Modem Registers (continued)
S14 General Bit-Mapped Options: S14 reflects the S22 General Bit-Mapped Options: S22 reflects the state
state of several "AT" commands.
of several "AT" commands.
Bit 0,4,6 Not Used
Bit 0-1 0 = Low speaker volume (ATL0)
Bit 1
0 = Echo Disabled (ATE0)
1 = Low speaker volume (ATL1)
1 = Echo Active (ATE1)
2 = Moderate speaker volume (ATL2)
Bit 2
0 = Send Result Codes (ATQ0)
3 = High speaker volume (ATL3)
1 = No Result Codes (ATQ1)
Bit 2-3 0 = Speaker off (ATM0)
Bit 3
0 = Numeric Result Codes (ATV0)
1 = Speaker off with carrier (ATM1)
1 = Full Word Result Codes (ATV1)
2 = Speaker always on (ATM2)
Bit 5
0 = Tone Dialing Selected (T)
3 = Speaker on during handshake
1 = Pulse Dialing Selected (P)
(ATM3)
Bit 7
0 = Answer
Bit 4-6 0 = Basic Result codes (ATX0)
1 = Originate
4 = Connect speed result codes (ATX1)
5 = No Blind Dial (ATX2)
S16 Test Status: S16 shows the modem test status.
6 = Busy Detection (ATX3)
Bit 0
0 = No Local Analog Loopback
7 = Full result codes (ATX4)
1 = Local ALB Active
Bit 7 Not Used
Bit 1
Not Used
Bit 2
0 = Local Digital Loopback Disabled
S23 General Bit-Mapped Options: S23 reflects the state
1 = Local DLB Enabled
of several "AT" commands.
Bit 3
0 = No Remote Digital Loopback
Bit 0 0 = Remote DLB Disabled (AT&T5)
1 = Remote DLB Active
1 = Remote DLB Allowed (AT&T4)
Bit 4
0 = Remote DLB not requested
Bit 1-3 0 = Host Interface at 300 bps
1 = Remote DLB Requested
1 = Host Interface at 600 bps
Bit 5
0 = Remote DLB w Self-Test Disabled
2 = Host Interface at 1200 bps
1 = Remote DLB w Self-Test Enabled
3 = Host Interface at 2400 bps
Bit 6
0 = Local ALB w Self-Test Disabled
4 = Host Interface at 4800 bps
1 = Local ALB w Self-Test Enabled
5 = Host Interface at 9600 bps
Bit 7
Not Used
6 = Host Interface at 19200 bps
7 = Host I/F at 38400 bps or higher
S18 Test Timer: S18 sets the duration of any test. If S18
Bit 4-5 0 = Even parity in use
equals 0, AT&T0 terminates the test.
1 = Not used
Range: 0 to 255
2 = Odd Parity in use
Units Seconds
3 = No Parity in use
Default 0
Bit 6-7 0 = No Guard Tone (AT&G0)
1 = No Guard Tone (AT&G1)
S21 General Bit-Mapped Options: S21 reflects the state
2 = 1800 Hz guard tone (AT&G2)
of several "AT" commands.
3 = Not Used
Bit 0-2 Not Used
Bit 3,4 0 = DTR ignored (&D0)
1 = Enter command mode on DTR off
(&D1)
2 = Disconnect on DTR off (&D2)
3 = Reset on DTR off (&D3)
Bit 5
0 = DCD always active (&C0)
1 = DCD on with Carrier (&C1)
Bit 6
0 = DSR always active (&C0)
1= DSR on when modem ready (&C1)
Bit 7
0 = No disconnect on Space (ATY0)
1 = Disconnect on Space (ATY1)
XECOM
(11) XE3314B
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet XE3314B.PDF ] | |
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