XE3314B [ETC]
Telecommunication IC ; 电信IC\n
| 型号： | XE3314B |
| 厂家： | 
ETC |
| 描述： | Telecommunication IC
|
| 文件： | 总17页 (文件大小：68K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
XE3314B
June 2000
Low-Cost, Embeddable 33,600 BPS Modem Module
Features
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.
FCC Part 68 Registration transferrable to customer’s
system
*
* UL1950 Recognized Component
Small Size: 2.75 inches by 1.38" by 0.42"
*
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.
* 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
Fax Protocols: V.17, V.29, V.27ter, and V.21 channel 2
*
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.
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.
*
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.
Block Diagram
Serial I/O
/DTR
/RTS
/CTS
/DSR
TXD
RXD
/DCD
ROM
Tip
Analog
Front
End
Modem
Controller
DAA
Ring
Auxiliary I/O
NVRAM
RESET
AR
OH
AMP
XECOM
(1)
XE3314B
XE3314B Mechanical Specifications
INCHES
METRIC(MM)
MIN MAX
A
PIN MIN
MAX
A
B
C
D
E
F
G
H
J
2.74
2.760
69.60 70.10
34.80 35.31
10.67 10.92
30.23 30.73
48.01 48.51
1.370 1.390
0.420 0.430
1.190 1.210
1.890 1.910
0.125 0.200
0.080 0.100
0.415 0.435
0.090 0.110
0.020 0.025
B
3.18
2.03
5.08
2.54
Denotes Pin 1
10.54 11.05
2.29
0.51
2.79
0.64
C
G
K
K
Pins = 0.025 inch square pin
All pins tin-plated
D
J
F
E
H
XE3314B PIN CONFIGURATION
NC
AR
RXD
NC
NC
NC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
40
39
38
37
36
35
34
33
32
31
30
29
28
27
VCC
/DSR
/DCD
NC
RESET
NC
NC
NC
NC
NC
NC
NC
/DTR
TST3
/CTS
NC
TXD
/RTS
NC
OH
NC
TST1
TST2
/RI
TIP
18
20
22
21
AMP
GND
RING
XECOM
(2)
XE3314B
XE3314B Pin Descriptions
PIN NAME
DESCRIPTION
1
2
NC
AR
No Internal Connection
Auxiliary Data/Voice Relay, Active High Output, TTL/CMOS. The AR signal goes high when ever
the modem is in the on-hook state. It can be connected to an external relay to switch control of the
telephone line between the modem and an auxiliary handset when.
3
RXD
Received Data, Output, TTL. Serial data output to the host. A logic "High" on RXD represents a
"mark" and a logic "Low" represents a "space".
4-8
9
NC
No Internal Connection
\DTR
Data Terminal Ready, Input, active Low, TTL. The "AT&D" command sets the function of \DTR.
The default, AT&D2, requires the host to assert \DTR to permit a modem link. The modem drops the
call in progress if \DTR is revoked and will not connect until \DTR is re-asserted.
10
11
TST3
\CTS
Test 3 is used for manufacturing purposes only. It has no function in normal operation.
Clear to Send, Output, active Low, TTL/CMOS. \CTS is used as a Flow Control output from the
modem. The modem revokes \CTS with hardware flow control active to signal the host that the
modem's input buffer is full. The modem reasserts \CTS when the buffer can accept more data
without a buffer overflow.
12
13
NC
No Internal Connection
TXD
Transmit Data, Input, TTL. Serial data input from the host. A logic "High" represents a "mark" and a
Low represents a"space", TTL.
14
\RTS
Request to Send, input, active Low, TTL. The XE3314B uses \RTS for hardware flow control. When
\RTS is revoked; hardware flow control is enabled, and the modem will not place data on RXD.
15
16
18
NC
\RI
No Internal Connection
Ring Indicator, Output, active Low, TTL. When low indicates the modem is receiving a ring signal.
TIP
Tip connection to the phone line(RJ11 pin3) from the internal DAA. The XE3314B is not sensitive to
the battery voltage polarity across Tip and Ring.
20
21
22
RING
GND
AMP
Ring connection to the phone line(RJ11 pin4) from the internal DAA.
Ground (0 volts)
Audio Output function is set by L & M commands and the value in register S22. This output can drive
a minimum load of 300 ohms.
27, 28 TST1, TST2 Test 1 and Test 2 are used for manufacturing test only. They have no function in normal use. These
pins are connected to the telephone line side of the telephone interface circuit so isolation must be
maintained between these signals and all other circuits.
30
OH
Off-Hook, Output, active High. OH indicates the modem's hookswitch relay is closed. Hookswitch
closure connects the modem to the telephone line. This signal is available only on the XE3314B.
36
RESET Hardware reset pin, Input, active High, TTL. A high on Pin 36 initiates a hardware reset. An external
reset is not required or recommended. The Reset pulse must be a minimum of 100 milliseconds long
37
38
N/C
No Internal Connection
\DCD
Data Carrier Detect, Output Active Low, TTL/CMOS. The &C command sets the function of \DCD. In
the default state \DCD activates when a valid carrier is detected.
39
40
\DSR
Vcc
Data Set Ready, Output, active Low, TTL/CMOS. &S sets the \DSR function. In the default condition,
AT&S0, \DSR is forced true.
+5 Volts.
XECOM
(3)
XE3314B
XE3314B Electrical Specifications
Parameter
Min
Typ
Max
Units
Comments
VCC
4.75
170
38
5.25
220
150
68
Volts
ma
ICC
200
On Line
Ring Voltage Detected
Ring Frequency Detected
Telephone Loop Current
Data Transmit level
DTMF Transmit Level
RMS
Hz
XE3314B
15.3
10
100
-9.0
0
ma
XE3314B
-12
-10.5
-2.5
dBm
dBm
Avg over 3 second interval
ABSOLUTE MAXIMUM RATINGS*
SUPPLY VOLTAGE - Vcc
DC INPUT VOLTAGE
+6.5 Volts
-0.6 Volts to +6.5 Volts
-25° C TO +85° C
260° C
STORAGE TEMPERATURE RANGE
LEAD TEMPERATURE (Soldering, 2 sec per wave)
OPERATING TEMPERATURE RANGE
0 TO 70° C
*Exceeding these values may result in permanent damage to the device.
XECOM
(4)
XE3314B
XE3314B Typical Applications Schematic for US, Canada and Japan
/DSR
/DCD
VCC
16C450
UART
RXD
SIN
/DSR
/DCD
XE3314B
/DTR
/CTS
/DTR
/CTS
TXD
SOUT
/RTS
/RTS
/RI
Tip
/RI
AMP
GND
Ring
+5 Volts
LM386
.2 ufd
250 ufd
50K
.05 ufd
8 ohm .5 W
Speaker
10 ohms
L2
L1
C1
C2
4
3
J1
Line
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
Description
Recommended Part Number
L1, L2
Ferrite Beads
TDK ACB2102L-120-X
C1, C2
J1
Capacitors
RJ11 Jack
Panasonic ECKDRS471, 470 pfd, 2600 Volts
Stewart SS6446NF
XECOM
(5)
XE3314B
XE3314B AT Commands
Modes of Operation
Command Line - A command line may include mul-
tiple commands. The modem executes the commands
in the sequence they appear in the command line.
Spaces, inserted to improve legibility, do not fill space
in the command buffer. A carriage return terminates the
command line and causes the commands to be ex-
ecuted. Register S3 allows the user to select a character
other than a carriage return to terminate the command
line.
The XE3314B uses "AT" commands for control and
configuration. The XE3314B operates in three modes;
Command Mode, Fax Mode and Data Mode. Exten-
sions to the AT command set support fax operation.
Data Mode: The modem enters data mode after it es-
tablishes a link and issues a "CONNECT" result code.
In Data Mode the modem modulates all signals on
Transmit Data, Pin 13, and sends them to the remote
modem. The modem demodulates the signal from the
Command Buffer - The command buffer holds 40
remote modem and places it onto Received Data, Pin 3, characters, including the AT prefix. If it overflows, the
for the host equipment. When the modem exits data
mode, it issues a "NO CARRIER" result code.
modem issues an "ERROR" result code and commands
are not executed.
Command Mode: The XE3314B enters command
mode on application of power, reset, loss of the con-
nection, or receipt of the escape sequence. In com-
mand mode the modem accepts commands from the
Command Line Editing - A backspace can be used to
edit the command any time before it is executed. The
backspace character, Control and H simultaneously on
some systems, erases the previous character in the
host on Transmit Data. Appropriate result codes are re- command line. Any character except for the "A" and
turned on Received Data at the same speed and parity
as the commands.
"T" can be erased. Register S5 allows the user to se-
lect a character other than a backspace to edit the com-
mand line.
Fax Mode: The modem enters fax mode on receipt of
the AT+FCLASS=1 command. Fax commands and re- Re-Execute Last Command - The A/ command
sponses are issued at 19,200 bits per second; the char-
acter format is 8 bits no parity. The modem accepts
Class 1 Fax commands only in fax mode. The A/,
ATO, AT&T and escape commands are not valid in fax
mode.
causes the modem to re-execute the command line
stored in the command buffer. This is the only com-
mand which does not require the "AT" prefix.
Omitted Parameters - Most commands include a pa-
rameter which determines the command function.
When the parameter is omitted from the command
Commands
The modem is configured and controlled with AT com- string, it is assumed to be a 0.
mands. AT commands follow a strict format. The
command line is stored in the command buffer and ex-
ecuted upon receipt of a carriage return. Until ex-
ecuted, the command line can be edited with the back-
space key.
Escape Characters - A three character escape se-
quence, entered while in data mode, will switch the mo-
dem into command mode while remaining on line. The
escape character, set by Register S2, is entered 3 times
in succession to execute the escape. The default es-
Command Format - Each command, except A/, begins cape sequence is "+++."
with the AT prefix. The "A" and "T" may be both up-
per case or both lower case but cannot be of different
cases. The modem uses the prefix to identify the host's
speed and parity. The modem determines speed by
measuring the width of the incoming bits and parity by
comparing the parity bits of the "A" and "T." The mo-
dem then returns result codes at the host's speed and
parity.
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. Each result
code ends with a carriage return when numeric result
codes are chosen. When full word result codes are cho-
sen, a Line Feed and Carriage Return precede and fol-
low each result code.
XECOM
(6)
XE3314B
XE3314B AT Commands (continued)
List of Commands
Mn - Speaker Activity - ATMn determines when the
An asterisk indicates the default setting of the command for the modem's audio output is active.
XE3314B. The default setting may be different for the
European models.
n=0 Speaker off
n=1 Speaker on until carrier received*
n=2 Speaker remains on
A - Answer Command - ATA forces the modem to immedi-
ately go off-hook and begin transmitting the answer tone se-
quence.
n=3 Speaker off during dialing, on until carrier
Nn - Data Rate - ATNn selects whether or not the modem
will negotiate a lower data link speed.
Bn - Select Communications Standard - ATBn selects the
modulation scheme used for connections below 2400 bits per
second
n=0 Handshake only at DTE rate
n=1 Negotiate highest common speed*
n=0
n=1
Selects CCITT standards
Selects Bell standards*
On - On Line - ATOn switches the modem from the com-
mand mode to the data mode.
n=0 Return On Line with no retrain*
n=1 Initiate retrain returning On Line.
D - Dial Command - Below are the characters accepted in a
dialing command.
0-9, #, * =
Dialing Digits
Qn - Responses - ATQn determines if the modem will issue
L
P
T
= Re-dial last number
= Pulse dial
= Tone dial
responses.
n=0 Send responses*
n=1 No Responses
S=n = Dial stored number
W = Wait for dial tone
^ = Toggles state of calling tone
Sr? - Interrogate Register - ATSr? requests the current
value in register Sr.
,
= Pause for the duration of S8
Sr=n - Set Register Value - ATsr=n sets the value of register
Sr to n.
@ = Wait for silence
!
;
= Switch hook flash
= Return to the command state
Vn - Result Codes - ATVn sets the modem to issue Numeric
or Full Word result codes .
En - Command Echo - ATEn determines whether commands
n=0
Numeric Result Codes
will be echoed back to the host.
n=1 English Word Result Codes*
n=0
n=1
Do not echo commands
Enable command echo*
Wn - Connect Message Rate - ATWn determines whether
the data rate reported in the Connect response is the host data
rate, the link data rate or whether both are provide along with
the error control and data compression protocols negotiated.
Hn - Switch Hook Control - ATHn opens and closes the
modem's hook switch.
n=0 Switch hook relay opens
n=1 The switch hook relay closes
n=0
n=1 Report line speed, DTE speed and Link protocol
n=2 "CONNECT" Reports Link speed
Send "CONNECT" at DTE Rate*
In - Modem Identification - ATIn Identifies the version of
the modem.
Xn - Result Code Set - ATXn selects which set of result
codes the modem may send.
Ln - Speaker Volume - ATLn sets the amplitude of the
modem's audio output.
n=0 Result codes 0 to 4
n=1 Result codes 0 to 5 and 10
n=2 Result codes 0 to 6 and 10
n=3 Result codes 0 to 5, 7 and 10
n=4 Full Result codes*
n=0 Lowest speaker volume
n=1 Low speaker volume*
n=2 Moderate speaker volume
n=3 High speaker volume
XECOM
(7)
XE3314B
XE3314B AT Commands (continued)
Yn - Long Space Disconnect - ATYn determines if the mo-
dem will automatically disconnect if a continuous space is re-
ceived for 1.6 seconds.
&Qn - Line Connection - AT&Qn determines if error control
or data buffering are active on the link.
n=0 Direct mode (no data buffering)*
n=5 Use Error Correction
n=0 Long Space Disconnect Disabled*
n=1 Disconnect on long space
n=6 Normal Mode (Speed buffering)
Zn - Reset - ATZn executes a soft reset to the modem and re- &Sn - DSR Operation - AT&Sn sets the operation of the
sets the modem configuration.
n=0 Reset to user profile 0*
n=1 reset to user profile 1
DSR signal.
n=0 DSR always active*
n=1 DSR in accordance with V.25.
&Cn - DCD Operation - AT&Cn determines the operation
of the DCD output.
&Tn - Test Modes - AT&T selects modem test modes.
n=0 Exit test mode
n=0 DCD is forced active.
n=1 Local analog loopback
n=1 DCD indicates a valid carrier*
n=3 Initiate local digital loopback
n=4 Respond to remote loop request*
n=5 Deny remote loop request
n=6 Initiate a Remote Digital loopback
n=7 Remote digital loopback w self-test
n=8 Local analog loopback w self-test
&Dn - DTR - AT&Dn determines how the modem will re-
spond to changes to DTR.
n=0 DTR is ignored by the modem.
n=1 Enter command mode if DTR revoked.
n=2 Disconnect if DTR revoked.*
n=3 Soft reset when DTR revoked
&Vn - View Configuration Profiles - AT&V permits the
user to check on the modems current configuration.
n=0 View active profile & user profile 0*
&Fn - Return to Factory Defaults - AT&Fn returns the mo-
dem configuration to one of two factory configurations.
n=0 Restore configuration 0*
n=1 View active profile & user profile 1
n=1 Restore configuration 1
&Wn - Store Active Profile - AT&Wn stores the current mo-
dem configuration in NVRAM.
&Gn - Guard Tone - AT&Gn controls the guard tone pro-
duced by the modem
n=0 Store active profile as profile 0*
n=1 Store active profile as profile 1
n=0 Guard Tone Disabled*
n=1 Guard Tone Disabled
n=2 1800 Hz Guard Tone
&Yn - Recall Stored Profile - AT&Yn sets the stored mo-
dem configuration to be used after a hard reset.
n=0 Recall profile 0 on power-up*
&Kn - Flow Control - AT&Kn selects the flow control
method used by the modem.
n=0 Disabled
n=1 Recall profile 1 on power-up
&Zn=x - Store telephone number "x" in
memory location "n"
n=3 RTS/CTS
n=4 XON/XOFF
n=5 Transparent XON/XOFF
n=6 RTS/CTS and XON/XOFF
%En - Line Quality Monitor/Auto Retrain - AT%En de-
termines if the modem will monitor line quality during a con-
nection and initiate a retrain if quality drops below acceptable
levels.
&Pn - Dial Pulse Make/Break Ratio - AT&Pn determines
the specific pulse dialing parameters used by the modem.
n=0 39/61% @ 10 pps*
n=0 Disabled
n=1 Enabled
n=1 33/67% @ 10 pps
n=2 Line quality, fallback, fall forward
n=2 39/61% @ 20 pps
n=3 33/67% @ 20 pps
XECOM
(8)
XE3314B
XE3314B AT Commands (continued)
%L - Read Received Signal Level - AT%L
user to read the magnitude of the receive signal in dBm.
the
Host initiates break on Reliable link.
n=0 Purge buffers and immediately transmit break
n=1 Same as n=0
permits
%Q - Read Line Signal Quality - AT%Q permits the user
to read the EQM value of the received signal.
n=2 Immediately transmit break
n=3 Same as n=1
n=4 Transmit break in sequence w data
n=5 Same as n=4
\An - MNP Block Size - AT|An sets the block size for MNP
data packets.
n=0 Maximum 64 characters
n=1 Maximum 128 characters
n=2 Maximum 192 characters
n=3 Maximum 256 characters*
\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*
\Bn - Transmit Break - AT\Bn selects the duration of the
break signal sent. Break = n x 100 msec.
n=4 V.42 Reliable mode, LAPM required
n=5 MNP required
\Gn - Modem Port Flow Control -
n=0 No Modem Port Flow Control
n=1 XON/XOFF Port Flow Control
-Kn - MNP Extended Services - AT-Kn determines how the
modem handles MNP10.
\Kn - Break control - AT\Kn determines how the modem will
handle a break signal.
n=0 No LAPM to MNP10 conversion
n=1 LAPM to MNP10 conversion*
Break received from host with Reliable link.
n=0 Enter on-line command mode; do not transmit
break
n=2 LAPM to MNP10 conversion but no MNP Ex-
tended Service during V.42 LAPM answer mode detect.
n=1 Purge buffers, immediately transmit break
n=2 Same as n=0
n=3 Immediately send break
+MS - Select Modulation - AT+MS sets the modulation and
available data rates in the format shown below.
AR+MS= a, b, c, d <CR>
a = modulation type
n=4 same as n=0
n=5 Send break in sequence with data*
Break received from host with Direct link .
n=0 Immediately transmit break, then enter on-line
command mode
0 - V.21(300 BPS)
1 - V.22 (1200 BPS)
2 - V.22bis (2400 BPS)
3 - V.23 (1200 BPS Half Duplex)
9 - V.32 (9600 BPS)
n=1 Immediately send break
n=2 Enter command mode but do not transmit break
n=3 same as n=1
n=4 same as n=0
10 - V.32bis (14,400 BPS)
11 - V.34bis (33,600 BPS)
64 - Bell 103 (300 BPS)
n=5 same as n=1*
69 - Bell 212 (1200 BPS)
b = Automoce Selection
Break received from modem w Normal link.
n=0 Purge buffers, Immediately send break to the host
n=1 same as n=0
0 - Automode disabled
1 - Automode enabled
n=2 Immediately send break to the host
n=3 Same as n=2
c = Minimum Data Rate in BPS
d = Maximum Data Rate in BPS
n=4 Send break in sequence with data.
n=5 Same as n=2*
XECOM
(9)
XE3314B
XE3314B Modem Registers
S0 Answer on nth Ring: S0 sets the modem to auto-
matically answer on the nth ring. Setting S0 to 0 dis-
ables automatic answer.
S7
Wait for Carrier after Dialing: S7 determines how
long the modem waits for a valid carrier signal after
dialing is completed.
Range:
Units
Default
0 to 255
Rings
0
Range:
Units
Default
1 to 255
Seconds
50
S1 Ring Count: S1 is a read-only register showing the
number of rings detected. If a ring is not detected
within 8 seconds, S1 is reset to zero.
S8 Comma Pause Time: S8 defines the duration of the
pause initiated by a comma in the dialing string. The
pause is generally used when waiting for a second dial
tone.
Range:
Units
0 to 255
Rings
0
Range:
Units
1 to 255
Seconds
50
Default
Default
S2 Escape Character: S2 determines the ASCII escape
character. Values of 0-127 select valid ASCII escape
characters; values from 128 to 255 disable the escape
sequence.
S9 Carrier Detect Response Time: S9 establishes the
length of time the remote modem's carrier must be
present to be recognized as valid.
Range:
Units
Default
0 to 255
ASCII Character
43 (+)
Range:
Units
Default
1 to 255
0.1 Seconds
6
S3 Carriage Return Character: S3 determines the
ASCII character to serve as a carriage return to termi-
nate commands and modem responses.
S10
Carrier Off Disconnect Delay: S10 selects how
long carrier must be lost before the modem discon-
nects. Note: If S10 is smaller than the value of S9,
the modem will not automatically disconnect on loss
of carrier.
Range:
Units
Default
0 to 127
ASCII Character
13 (Carriage Return)
Range:
Units
1 to 255
0.1 Seconds
14
S4
Line Feed Character: S4 sets the ASCII character
Default
to act as a line feed character in modem responses.
Range:
Units
Default
0 to 127
ASCII Character
10 (Line Feed)
S11 Tone Dialing Speed: S10 sets the duration and spac-
ing of the dialing tones. S11 does not affect the
pulse dialing rate.
Range:
Units
Default
50 to 255
1 Millisecond
95
S5 Back Space Character: S5 defines the ASCII char-
acter used as a backspace to edit the command line.
Range:
Units
Default
0 to 32
ASCII Character
8 (Back Space)
S12 Escape Code Guard Timer: S12 sets the escape se-
quence guard timer. If characters are received before
or after the escape sequence, within the guard timer,
the modem aborts the escape attempt and remains in
data mode.
S6 Dial Tone Wait Time: S6 determines how long the
modem waits for dial tone before dialing begins. The
Dial Tone Wait Time cannot be set to less than two
seconds.
Range:
Units
0 to 255
0.02 Seconds
50
Range:
Units
Default
2 to 255
Seconds
2
Default
XECOM
(10)
XE3314B
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
Bit 1
Not Used
Bit 0-1
0 = Low speaker volume (ATL0)
1 = Low speaker volume (ATL1)
2
0 = Echo Disabled (ATE0)
1 = Echo Active (ATE1)
0 = Send Result Codes (ATQ0)
1 = No Result Codes (ATQ1)
0 = Numeric Result Codes (ATV0)
1 = Full Word Result Codes (ATV1)
0 = Tone Dialing Selected (T)
1 = Pulse Dialing Selected (P)
0 = Answer
= Moderate speaker volume (ATL2)
3 = High speaker volume (ATL3)
Bit 2-3 0 = Speaker off (ATM0)
1 = Speaker off with carrier (ATM1)
Bit 2
Bit 3
Bit 5
Bit 7
2 = Speaker always on (ATM2)
3 = Speaker on during handshake
(ATM3)
Bit 4-6 0 = Basic Result codes (ATX0)
1 = Originate
4 = Connect speed result codes (ATX1)
5 = No Blind Dial (ATX2)
6 = Busy Detection (ATX3)
7 = Full result codes (ATX4)
Not Used
S16
Test Status: S16 shows the modem test status.
Bit 0
0 = No Local Analog Loopback
1 = Local ALB Active
Bit 7
Bit 1
Bit 2
Not Used
0 = Local Digital Loopback Disabled
1 = Local DLB Enabled
S23 General Bit-Mapped Options: S23 reflects the state
of several "AT" commands.
Bit 3
Bit 4
Bit 5
Bit 6
Bit 7
0 = No Remote Digital Loopback
1 = Remote DLB Active
Bit 0
0 = Remote DLB Disabled (AT&T5)
1 = Remote DLB Allowed (AT&T4)
0 = Remote DLB not requested
1 = Remote DLB Requested
0 = Remote DLB w Self-Test Disabled
1 = Remote DLB w Self-Test Enabled
0 = Local ALB w Self-Test Disabled
1 = Local ALB w Self-Test Enabled
Not Used
Bit 1-3 0 = Host Interface at 300 bps
1 = Host Interface at 600 bps
2 = Host Interface at 1200 bps
3 = Host Interface at 2400 bps
4 = Host Interface at 4800 bps
5 = Host Interface at 9600 bps
6 = Host Interface at 19200 bps
7 = Host I/F at 38400 bps or higher
Bit 4-5 0 = Even parity in use
1 = Not used
S18 Test Timer: S18 sets the duration of any test. If S18
equals 0, AT&T0 terminates the test.
Range:
Units
Default
0 to 255
Seconds
0
2 = Odd Parity in use
3 = No Parity in use
Bit 6-7 0 = No Guard Tone (AT&G0)
1 = No Guard Tone (AT&G1)
2 = 1800 Hz guard tone (AT&G2)
3 = Not Used
S21 General Bit-Mapped Options: S21 reflects the state
of several "AT" commands.
Bit 0-2
Bit 3,4
Not Used
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
Bit 6
Bit 7
0 = DCD always active (&C0)
1 = DCD on with Carrier (&C1)
0 = DSR always active (&C0)
1= DSR on when modem ready (&C1)
0 = No disconnect on Space (ATY0)
1 = Disconnect on Space (ATY1)
XECOM
(11)
XE3314B
XE3314B Modem Registers (continued)
S27 General Bit-Mapped Options: S27 reflects the
S32
XON Character: S32 determines the ASCII charac-
state of several "AT" commands.
ter to be sent as XON for in-band flow control.
Bit 0
1
0
0
1
3
Range:
Units
Default
0 to 255
ASCII Character
11 (VT)
0
1
0
0 = Normal Mode (AT&Q0)
1
1
= Error control enabled (AT&Q5)
= Direct Mode (AT&Q6)
Bit 2, 4-5, 7 Not Used
Bit 6 0 = CCITT Protocols (ATB0)
1 = Bell Protocols (ATB1)
S33
S36
XOFF Character: S32 determines the ASCII char-
acter to be recognized as XOFF for in-band flow con-
trol.
Range:
Units
Default
0 to 255
ASCII Character
19 (DC3)
S28
Pulse Dialing Bit-Mapped Options: S28 stores the
modem's pulse dialing configuration.
Bit 0-2, 5-7 Not Used
Bit 3-4
0 = Make/Break ratio 39%/61%; 10
pulses per second (AT&P0)
LAPM Failure: S36 instructs the modem what to do
if the error control negotiations fail.
1 = Make/Break ratio 33%/67%; 10
pulses per second (AT&P1)
2 = Make/Break ratio 39%/61%; 20
pulses per second (AT&P2)
3 = Make/Break ratio 33%/67%; 20
pulses per second (AT&P3)
Bit 0-2
0 = Modem Disconnects
1 = Establish Direct Connection
3 = Establish normal Connection
4 = Disconnect if MNP handshake fails
5 = Establish Direct Connection if
MNP handshake fails.
7 = Establish Normal Connection if
MNP handshake fails.
Not Used
S29
S30
S31
Hook Flash Timer: S29 determines the length for
time the modem closes its off-hook relay on receipt of
the "!" dial modifier to simulate a switch hook flash.
Bit 3-7
Range:
Units
Default
0 to 255
10 milliseconds
70
S38
Forced Disconnect Timer: S38 sets the delay be-
tween receipt of the command to disconnect and the
actual opening of the switch hook. If S38 is set to
255 the modem disconnects only after its buffers are
empty.
Disconnect on Inactivity Timer: S30 sets the
periond the modemis idle before it disconnects . A 0
disables the inactivity timer.
Range:
Units
Default
0 to 255
1 Second
20
Range:
Units
Default
0 to 255
10 Seconds
0
S39
Flow Control Bit-Mapped Options: S39 shows the
modem's flow control status, AT&K.
General Bit-Mapped Options: S31 stores the status
Bit 0-2
0 = Flow Control Disabled
of various AT commands.
3 = Hardware Flow Control, RTS/CTS
4 = In-Band Flow Control XON/XOFF
5 = Transparent In-Band Flow Control
6 = Both Hardware and In-Band Flow
Control
Bit 0
0 = No single-line Connect messages
(AT\V0)
1 = Use single-line connect messages
(AT\V1)
Bit 1
0 = No Automode detection (ATN0)
1 = Automode detection active (ATN1)
0 = Report host speed (ATW0)
1 = Report all parameters (ATW1)
2 = Report modem speed only (ATW2)
Not Used
Bit 3-7 Not use
Bit 2-3
Bit 4-7
XECOM
(12)
XE3314B
XE3314B Modem Registers (continued)
S40
MNP Bit-Mapped Options: S40 shows the status of S46
the modem's MNP commands, .
Data Compression Control: S46 selects whether or
not the modem will support data compression with er-
ror control.
S46=136 No data compression
S46=138 Data Compression selected
Default 138
Bit 0-1
0 = No LAPM to MNP10 conversion
(AT-K0)
1 = Enable LAPM to MNP10
conversion (AT-K1)
2 = Enable LAPM to MNP10
conversion except for LAPM
answer mode (AT-K1)
S48
S86
V.42 Negotiations: S48 determines the modem's V.42
negotiation process.
S48=0 Proceed with LAPM
S48=7 Negotiate per V.42
S48=128 Assume LAPM failure
Default 7
Bit 2
Bit 3-5
Not Used
0 = AT\K0 break handling selected
1 = AT\K1 break handling selected
2 = AT\K2 break handling selected
3 = AT\K3 break handling selected
4 = AT\K4 break handling selected
5 = AT\K5 break handling selected
0 = MNP Block size 64 characters
1 = MNP Block size 128 characters
2 = MNP Block size 192 characters
3 = MNP Block size 256 characters
Call Failure Code: S86 shows why the last "NO
CARRIER response was issued.
Bit 6-7
S86=0
S86=4
S86=5
S86=9
Normal Disconnect
Loss of Carrier
V.42 Negotiation Failure
Modem Handshake Failure
S86=12 Disconnect Initiated by remote
modem
S41
General Bit-Mapped Options: S41 stores the con-
dition of various "AT" commands.
S86=13 No response after 10 retries
S86=14 Protocol Violation
Bit 0-1
0 = No Data Compression (AT%C0)
1 = MNP5 Data Compression
(AT&C1)
S95
Extended Result Codes: S95 permits the user to cus-
2 = V.42bis Data Compression
(AT&C2)
tomize the extended result
codes.
Bit 0
Connect result code shows link
3 = Either MNP5 or V.42bis Data
Compression (AT&C3)
speed
Bit 1
Bit 2
Bit 3
Bit 4
Bit 5
Bit 6
Bit 7
Add /ARQ to connect response
Add /VFC to Carrier response
Enable Protocol response
Not Used
Enable Compression Result Code
Not used
Bit
2,
0
1
6
0 = No Fallback/Forward (AT%E0)
0 = Retrain Enabled (AT%E1)
0 = Fallback/Forward Enabled
(AT%E2)
0
Bit 3-5, 7 Not Used
Not Used
XECOM
(13)
XE3314B
XE3314B Class 1 Fax Commands
AT+FCLASS? - Service Class Indication
0 = Configured as a data modem
AT+FRM<mod> - Receive Fax
(see AT+FRH for "mod" values)
1 = Configured for Service Class 1.
AT+FRS<time> - Receive Silence
AT+FRTn - Receive Test Data
AT+FCLASS=? - Service Class Capability
0 = Configured as a data modem
1 = Configured for Service Class 1.
AT+FTH<mod> - Transmit HDLC Data
AT+FCLASS=n - Set Service Class
(see AT+FRH for "mod" values)
0 = Configured as a data modem
1 = Configured for Service Class 1.
AT+FTM<mod> - Transmit Fax
(see AT+FRH for "mod" values)
AT+FAE=n - Data/Fax Auto Answer
AT+FTS<time> - Transmit Silence
AT+FTTn - Transmit Test Data
0 = Answer as a fax modem only
1 = Either a fax or data modem
AT+FF - Enhanced Flow Control
AT+FRH<mod> - Receive HDLC Data
3
V.21 Channel 2, 300 bps
24 V.27ter, 2400 bps
48 V.27ter, 4800 bps
72 V.29, 7200 bps
96 V.29, 9600 bps
97 V.17, 9600 bps
98 V.17 short train, 9600 bps
121 V.17, 12,000 bps
122 V.17 short train, 12,000 bps
145 V.17, 14,400 bps
146 V.17 short train, 14,400 bps
XECOM
(14)
XE3314B
XE3314B Result Codes
Digits Verbose
Description
Digits Verbose
Description
0
OK
Successfully executed
command line
47
48
49
50
51
52
53
54
55
56
57
58
59
61
62
63
64
66
CARRIER 2400
2400 bps carrier received
4800 bps carrier received
7200 bps carrier received
9600 bps carrier received
12,000 bps carrier received
14,400 bps carrier received
16,800 bps carrier received
19,200 bps carrier received
21,600 bps carrier received
24,000 bps carrier received
26,400 bps carrier received
28,800 bps carrier received
16,800 bps Connection
21,600 bps Connection
24,000 bps Connection
26,400 bps Connection
28,800 bps Connection
CARRIER 4800
CARRIER 7200
CARRIER 9600
CARRIER 12000
CARRIER 14400
CARRIER 16800
CARRIER 19200
CARRIER 21600
CARRIER 24000
CARRIER 26400
CARRIER 28800
CONNECT 16800
CONNECT 21600
CONNECT 24000
CONNECT 26400
CONNECT 28800
1
2
3
4
5
6
7
8
CONNECT
RING
300 bps connection
Ring signal detected
Carrier not detected/lost
Error in command line
1200 bps connection
No dial tone detected
Busy signal detected
NO CARRIER
ERROR
CONNECT 1200
NO DIAL TONE
BUSY
NO ANSWER
5 second silence not
detected
10
11
12
13
14
15
16
17
18
19
22
CONNECT 2400
CONNECT 4800
CONNECT 9600
CONNECT 7200
2400 bps Connection
4800 bps Connection
9600 bps Connection
7200 bps Connection
CONNECT 12000 12,000 bps Connection
CONNECT 14400 14,400 bps Connection
CONNECT 19200 19,200 bps Connection
CONNECT 38400 38,400 bps Connection
COMPRESSION: CLASS 5
MNP5 data compression
COMPRESSION: V.42bis
CONNECT 57600
57,600 bps Connection
67
69
CONNECT 115200 115200 bps Connection
V.42bis data compression
CONNECT 75TX/1200RX
V.23 originate connection
COMPRESSION: NONE
No data compression
76
77
80
81
PROTOCOL: NONE No error correction
PROTOCOL: LAPM LAPM error correction
23
CONNECT 1200TX/75RX
V.23 answer connection
33
35
FAX
Fax connection
PROTOCOL: ALT
PROTOCOL: ALT CELLULAR
MNP10 error correction
+FCERROR Fax carrier error
MNP error correction
DATA
Data connection in Fax
mode
40
44
CARRIER 300
300 bps carrier received
+F4
CARRIER 1200/75 V.23 reverse channel
carrier received
45
46
CARRIER 75/1200 V.23 forward channel
carrier received
CARRIER 1200
1200 bps carrier received
XECOM
(15)
XE3314B
FCC Information
All equipment connected to the public telephone network in the
United States must have FCC Part 68 Registration. Part 68
registration certifies that the device will not cause harm to the
telephone network. The XE3314B provides a user transferable
FCC Registration. This permits XE3314B customers to use
our FCC registration number without submitting their systems
for additional testing. Call Xecom technical support at 408-
945-6640 with any questions on whether your system qualifies
to use Xecom's FCC Registration Number.
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 uninter-
rupted telephone service.
If you experience trouble with this device, please contact
XECOM at (408) 945-6640 for assistance. 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.
In your operating instructions you must provide certain infor-
mation to the end user of the modem. The instructions should
include most of the instructions shown below. Only the
information regarding the mounting of the device in the final
assembly should be omitted.
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 Instructions:
FCC Labels:
his product complies with Part 68 of the FCC Rules and
T
FCC rules also require a label which is visible from the outside
of the equipment. The label should display Xecom's name as
holder of the FCC Registration, the FCC Registration Number
and Ringer Equivalence of the modem. This is the same
information which appears on the top of each XE3314B
module.
Regulations. On 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 your 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 notifica-
tion is not practical, you will be notified as soon as possible.
XECOM
(16)
XE3314B
Terms of Sale
Devices sold by XECOM are covered by the warranty provisions appearing in its Terms of Sale only. XECOM makes no war-
ranty, express, statutory, implied, or by description regarding the information set forth herein, or regarding the freedom of the
described devices from patent infringement. XECOM makes no warranty of merchantability or fitness for any purposes.
XECOM reserves the right to discontinue production and change specifications and prices at any time and without notice.
This product is intended for use in normal commercial applications. Applications requiring extended temperature range, un-
usual environmental requirements, or high reliability applications, such as military, medical life-support or life-sustaining
equipment, are specifically not recommended without additional processing and authorization by XECOM for such application.
Xecom assumes no responsibility for the use of any circuitry other than circuitry embodied in a Xecom product. No other cir-
cuits, patents, or licenses are implied.
Life Support Policy
Xecom's products are not authorized for use as Critical Components in Life Support Devices or Systems.
Life Support Devices or Systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) sup-
port or sustain life, and whose failure to perform, when properly used in accordance with instructions provided in the labeling,
can be reasonably expected to result in significant injury to the user.
A Critical Component is any component of a life support device or system whose failure to perform can be reasonably ex-
pected to cause failure of the life support device or system, or to affect its safety or effectiveness.
Copyright, Xecom © 2000
While Xecom, Inc. has made every effort to ensure that the information presented here is accurate, Xecom will not be liable for
any damages arising from errors or omission of fact. Xecom reserves the right to modify specifications and/or prices without
notice. Product mentioned herein are used for identification purposes only and may be trademarks and/or registered trademarks
of their respective companies.
Xecom Incorporated
374 Turquoise Street, Milpitas, CA 95035
Ph:408-945-6640 Fax:408-942-1346
XECOM
XE3314B
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