ETC XE3314B

XE3314B
June 2000
Low-Cost, Embeddable 33,600 BPS Modem Module
Features
Xecom's XE3314B is a complete, low-cost 33,600 bps * FCC Part 68 Registration transferrable to customer’s
Description
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.
The XE3314B is a full-featured modem. Besides 33.6
Kbps data transfer, the XE3314B supports data compression, 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.
Auxiliary I/O
* 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
* 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.
Block Diagram
Serial I/O
/DTR
/RTS
/CTS
/DSR
TXD
RXD
/DCD
system
ROM
Analog
Front
End
Modem
Controller
Tip
DAA
Ring
NVRAM
RESET
AR
OH
AMP
XECOM
(1)
XE3314B
XE3314B Mechanical Specifications
INCHES
METRIC(MM)
PIN
MIN
MAX
MIN
MAX
A
B
C
D
E
F
G
H
J
K
2.74
1.370
0.420
1.190
1.890
0.125
0.080
0.415
0.090
0.020
2.760
1.390
0.430
1.210
1.910
0.200
0.100
0.435
0.110
0.025
69.60
34.80
10.67
30.23
48.01
3.18
2.03
10.54
2.29
0.51
70.10
35.31
10.92
30.73
48.51
5.08
2.54
11.05
2.79
0.64
A
B
Denotes Pin 1
C
Pins = 0.025 inch square pin
All pins tin-plated
K
G
D
J
E
F
H
XE3314B PIN CONFIGURATION
XECOM
NC
AR
RXD
NC
NC
NC
NC
NC
/DTR
TST3
/CTS
NC
TXD
/RTS
NC
/RI
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
TIP
18
RING
20
(2)
40
39
38
37
36
35
34
33
32
31
30
29
28
27
VCC
/DSR
/DCD
NC
RESET
NC
NC
NC
NC
NC
OH
NC
TST1
TST2
22
21
AMP
GND
XE3314B
XE3314B Pin Descriptions
PIN NAME
DESCRIPTION
1
NC
No Internal Connection
2
AR
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
NC
9
\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
TST3
Test 3 is used for manufacturing purposes only. It has no function in normal operation.
11
\CTS
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
NC
13
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
NC
No Internal Connection
16
\RI
Ring Indicator, Output, active Low, TTL. When low indicates the modem is receiving a ring signal.
18
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
RING
Ring connection to the phone line(RJ11 pin4) from the internal DAA.
21
GND
Ground (0 volts)
22
AMP
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
No Internal Connection
No Internal Connection
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
36
RESET
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.
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
N/C
38
\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
\DSR
Data Set Ready, Output, active Low, TTL/CMOS. &S sets the \DSR function. In the default condition,
AT&S0, \DSR is forced true.
40
Vcc
XECOM
No Internal Connection
+5 Volts.
(3)
XE3314B
XE3314B Electrical Specifications
Parameter
Min
Typ
Max
Units
5.25
Volts
220
ma
VCC
4.75
ICC
170
Ring Voltage Detected
38
150
RMS
Ring Frequency Detected
15.3
68
Hz
Telephone Loop Current
10
100
ma
Data Transmit level
-12
-10.5
-9.0
dBm
-2.5
0
dBm
200
DTMF Transmit Level
Comments
On Line
XE3314B
XE3314B
Avg over 3 second interval
ABSOLUTE MAXIMUM RATINGS*
SUPPLY VOLTAGE - Vcc
+6.5 Volts
DC INPUT VOLTAGE
-0.6 Volts to +6.5 Volts
STORAGE TEMPERATURE RANGE
-25° C TO +85° C
LEAD TEMPERATURE (Soldering, 2 sec per wave)
OPERATING TEMPERATURE RANGE
260° C
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
16C450
UART
VCC
SIN
RXD
XE3314B
XE3301
/DTR
/DTR
/CTS
/CTS
SOUT
/RTS
TXD
/RTS
/RI
/DSR
/DCD
/RI
Tip
AMP
GND
Ring
.2 ufd +5 Volts
250 ufd
50K
LM386
.05 ufd
L2
8 ohm .5 W
Speaker
10 ohms
L1
C1
C2
4
3
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
Description
Recommended Part Number
L1, L2
Ferrite Beads
TDK ACB2102L-120-X
C1, C2
Capacitors
Panasonic ECKDRS471, 470 pfd, 2600 Volts
J1
RJ11 Jack
Stewart SS6446NF
XECOM
(5)
XE3314B
XE3314B AT Commands
Modes of Operation
The XE3314B uses "AT" commands for control and
configuration. The XE3314B operates in three modes;
Command Mode, Fax Mode and Data Mode. Extensions to the AT command set support fax operation.
Data Mode: The modem enters data mode after it establishes 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
remote modem and places it onto Received Data, Pin 3,
for the host equipment. When the modem exits data
mode, it issues a "NO CARRIER" result code.
Command Mode: The XE3314B enters command
mode on application of power, reset, loss of the connection, or receipt of the escape sequence. In command mode the modem accepts commands from the
host on Transmit Data. Appropriate result codes are returned on Received Data at the same speed and parity
as the commands.
Fax Mode: The modem enters fax mode on receipt of
the AT+FCLASS=1 command. Fax commands and responses are issued at 19,200 bits per second; the character 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.
Commands
The modem is configured and controlled with AT commands. AT commands follow a strict format. The
command line is stored in the command buffer and executed upon receipt of a carriage return. Until executed, the command line can be edited with the backspace key.
Command Format - Each command, except A/, begins
with the AT prefix. The "A" and "T" may be both upper 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 modem then returns result codes at the host's speed and
parity.
XECOM
Command Line - A command line may include multiple 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 executed. Register S3 allows the user to select a character
other than a carriage return to terminate the command
line.
Command Buffer - The command buffer holds 40
characters, including the AT prefix. If it overflows, the
modem issues an "ERROR" result code and commands
are not executed.
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
command line. Any character except for the "A" and
"T" can be erased. 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 re-execute the command line
stored in the command buffer. This is the only command which does not require the "AT" prefix.
Omitted Parameters - Most commands include a parameter which determines the command function.
When the parameter is omitted from the command
string, it is assumed to be a 0.
Escape Characters - A three character escape sequence, entered while in data mode, will switch the modem 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 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. Each result
code ends with a carriage return when numeric result
codes are chosen. When full word result codes are chosen, a Line Feed and Carriage Return precede and follow each result code.
(6)
XE3314B
XE3314B AT Commands (continued)
List of Commands
An asterisk indicates the default setting of the command for the
XE3314B. The default setting may be different for the
European models.
A - Answer Command - ATA forces the modem to immediately go off-hook and begin transmitting the answer tone sequence.
Bn - Select Communications Standard - ATBn selects the
modulation scheme used for connections below 2400 bits per
second
n=0
Selects CCITT standards
n=1
Selects Bell standards*
D - Dial Command - Below are the characters accepted in a
dialing command.
0-9, #, * =
Dialing Digits
L = Re-dial last number
P = Pulse dial
T = Tone dial
S=n = Dial stored number
W = Wait for dial tone
^ = Toggles state of calling tone
, = Pause for the duration of S8
@ = Wait for silence
! = Switch hook flash
; = Return to the command state
En - Command Echo - ATEn determines whether commands
will be echoed back to the host.
n=0
Do not echo commands
n=1
Enable command echo*
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
In - Modem Identification - ATIn Identifies the version of
the modem.
Ln - Speaker Volume - ATLn sets the amplitude of the
modem's audio output.
n=0 Lowest speaker volume
n=1 Low speaker volume*
n=2 Moderate speaker volume
n=3 High speaker volume
XECOM
Mn - Speaker Activity - ATMn determines when the
modem's audio output is active.
n=0 Speaker off
n=1 Speaker on until carrier received*
n=2 Speaker remains on
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.
n=0 Handshake only at DTE rate
n=1 Negotiate highest common speed*
On - On Line - ATOn switches the modem from the command mode to the data mode.
n=0 Return On Line with no retrain*
n=1 Initiate retrain returning On Line.
Qn - Responses - ATQn determines if the modem will issue
responses.
n=0 Send responses*
n=1 No Responses
Sr? - Interrogate Register - ATSr? requests the current
value in register Sr.
Sr=n - Set Register Value - ATsr=n sets the value of register
Sr to n.
Vn - Result Codes - ATVn sets the modem to issue Numeric
or Full Word result codes .
n=0
Numeric Result Codes
n=1 English Word Result Codes*
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.
n=0
Send "CONNECT" at DTE Rate*
n=1 Report line speed, DTE speed and Link protocol
n=2
"CONNECT" Reports Link speed
Xn - Result Code Set - ATXn selects which set of result
codes the modem may send.
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*
(7)
XE3314B
XE3314B AT Commands (continued)
Yn - Long Space Disconnect - ATYn determines if the modem will automatically disconnect if a continuous space is received for 1.6 seconds.
n=0 Long Space Disconnect Disabled*
n=1 Disconnect on long space
&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=6 Normal Mode (Speed buffering)
Zn - Reset - ATZn executes a soft reset to the modem and resets the modem configuration.
n=0 Reset to user profile 0*
n=1 reset to user profile 1
&Sn - DSR Operation - AT&Sn sets the operation of the
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.
n=0 DCD is forced active.
n=1 DCD indicates a valid carrier*
&Tn - Test Modes - AT&T selects modem test modes.
n=0 Exit test mode
n=1 Local analog loopback
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 respond 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
&Fn - Return to Factory Defaults - AT&Fn returns the modem configuration to one of two factory configurations.
n=0 Restore configuration 0*
n=1 Restore configuration 1
&Gn - Guard Tone - AT&Gn controls the guard tone produced by the modem
n=0 Guard Tone Disabled*
n=1 Guard Tone Disabled
n=2 1800 Hz Guard Tone
&Kn - Flow Control - AT&Kn selects the flow control
method used by the modem.
n=0 Disabled
n=3 RTS/CTS
n=4 XON/XOFF
n=5 Transparent XON/XOFF
n=6 RTS/CTS and XON/XOFF
&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=1 33/67% @ 10 pps
n=2 39/61% @ 20 pps
n=3 33/67% @ 20 pps
XECOM
&Vn - View Configuration Profiles - AT&V permits the
user to check on the modems current configuration.
n=0 View active profile & user profile 0*
n=1 View active profile & user profile 1
&Wn - Store Active Profile - AT&Wn stores the current modem configuration in NVRAM.
n=0 Store active profile as profile 0*
n=1 Store active profile as profile 1
&Yn - Recall Stored Profile - AT&Yn sets the stored modem configuration to be used after a hard reset.
n=0 Recall profile 0 on power-up*
n=1 Recall profile 1 on power-up
&Zn=x - Store telephone number "x" in
memory location "n"
%En - Line Quality Monitor/Auto Retrain - AT%En determines if the modem will monitor line quality during a connection and initiate a retrain if quality drops below acceptable
levels.
n=0 Disabled
n=1 Enabled
n=2 Line quality, fallback, fall forward
(8)
XE3314B
XE3314B AT Commands (continued)
%L - Read Received Signal Level - AT%L permits the
user to read the magnitude of the receive signal in dBm.
Host
n=0
n=1
n=2
n=3
n=4
n=5
%Q - Read Line Signal Quality - AT%Q permits the user
to read the EQM value of the received signal.
\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*
\Bn - Transmit Break - AT\Bn selects the duration of the
break signal sent. Break = n x 100 msec.
\Gn - Modem Port Flow Control n=0 No Modem Port Flow Control
n=1 XON/XOFF Port Flow Control
\Kn - Break control - AT\Kn determines how the modem will
handle a break signal.
Break received from host with Reliable link.
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 host with Direct link .
n=0 Immediately transmit break, then enter on-line
command mode
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
n=5 same as n=1*
Break received from modem w Normal link.
n=0 Purge buffers, Immediately send break to the 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*
XECOM
initiates break on Reliable link.
Purge buffers and immediately transmit break
Same as n=0
Immediately transmit break
Same as n=1
Transmit break in sequence w data
Same as n=4
\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
-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 but no MNP Extended Service during V.42 LAPM answer mode detect.
+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
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)
10 - V.32bis (14,400 BPS)
11 - V.34bis (33,600 BPS)
64 - Bell 103 (300 BPS)
69 - Bell 212 (1200 BPS)
b = Automoce Selection
0 - Automode disabled
1 - Automode enabled
c = Minimum Data Rate in BPS
d = Maximum Data Rate in BPS
(9)
XE3314B
XE3314B Modem Registers
S0
Answer on nth Ring: S0 sets the modem to automatically answer on the nth ring. Setting S0 to 0 disables automatic answer.
Range:
0 to 255
Units
Rings
Default
0
S7
Wait for Carrier after Dialing: S7 determines how
long the modem waits for a valid carrier signal after
dialing is completed.
Range:
1 to 255
Units
Seconds
Default
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.
Range:
0 to 255
Units
Rings
Default
0
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:
1 to 255
Units
Seconds
Default
50
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.
Range:
0 to 255
Units
ASCII Character
Default
43 (+)
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:
1 to 255
Units
0.1 Seconds
Default
6
S10
Carrier Off Disconnect Delay: S10 selects how
long carrier must be lost before the modem disconnects. Note: If S10 is smaller than the value of S9,
the modem will not automatically disconnect on loss
of carrier.
Range:
1 to 255
Units
0.1 Seconds
Default
14
S3
S4
S5
S6
Carriage Return Character: S3 determines the
ASCII character to serve as a carriage return to terminate commands and modem responses.
Range:
0 to 127
Units
ASCII Character
Default
13 (Carriage Return)
Line Feed Character: S4 sets the ASCII character
to act as a line feed character in modem responses.
Range:
0 to 127
Units
ASCII Character
Default
10 (Line Feed)
Back Space Character: S5 defines the ASCII character used as a backspace to edit the command line.
Range:
0 to 32
Units
ASCII Character
Default
8 (Back Space)
S11
Tone Dialing Speed: S10 sets the duration and spacing of the dialing tones. S11 does not affect the
pulse dialing rate.
Range:
50 to 255
Units
1 Millisecond
Default
95
S12
Escape Code Guard Timer: S12 sets the escape sequence 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.
Range:
0 to 255
Units
0.02 Seconds
Default
50
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:
2 to 255
Units
Seconds
Default
2
XECOM
(10)
XE3314B
XE3314B Modem Registers (continued)
S14
S16
General Bit-Mapped Options: S14 reflects the
state of several "AT" commands.
Bit 0,4,6
Not Used
Bit 1
0 = Echo Disabled (ATE0)
1 = Echo Active (ATE1)
Bit 2
0 = Send Result Codes (ATQ0)
1 = No Result Codes (ATQ1)
Bit 3
0 = Numeric Result Codes (ATV0)
1 = Full Word Result Codes (ATV1)
Bit 5
0 = Tone Dialing Selected (T)
1 = Pulse Dialing Selected (P)
Bit 7
0 = Answer
1 = Originate
S22
Test Status: S16 shows the modem test status.
Bit 0
0 = No Local Analog Loopback
1 = Local ALB Active
Bit 1
Not Used
Bit 2
0 = Local Digital Loopback Disabled
1 = Local DLB Enabled
Bit 3
0 = No Remote Digital Loopback
1 = Remote DLB Active
Bit 4
0 = Remote DLB not requested
1 = Remote DLB Requested
Bit 5
0 = Remote DLB w Self-Test Disabled
1 = Remote DLB w Self-Test Enabled
Bit 6
0 = Local ALB w Self-Test Disabled
1 = Local ALB w Self-Test Enabled
Bit 7
Not Used
S23
S18
Test Timer: S18 sets the duration of any test. If S18
equals 0, AT&T0 terminates the test.
Range:
0 to 255
Units
Seconds
Default
0
S21
General Bit-Mapped Options: S21 reflects the state
of several "AT" commands.
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)
General Bit-Mapped Options: S22 reflects the state
of several "AT" commands.
Bit 0-1
0 = Low speaker volume (ATL0)
1 = Low speaker volume (ATL1)
2 = Moderate speaker volume (ATL2)
3 = High speaker volume (ATL3)
Bit 2-3 0 = Speaker off (ATM0)
1 = Speaker off with carrier (ATM1)
2 = Speaker always on (ATM2)
3 = Speaker on during handshake
(ATM3)
Bit 4-6 0 = Basic Result codes (ATX0)
4 = Connect speed result codes (ATX1)
5 = No Blind Dial (ATX2)
6 = Busy Detection (ATX3)
7 = Full result codes (ATX4)
Bit 7
Not Used
General Bit-Mapped Options: S23 reflects the state
of several "AT" commands.
Bit 0
0 = Remote DLB Disabled (AT&T5)
1 = Remote DLB Allowed (AT&T4)
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
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
XE3314B
XE3314B Modem Registers (continued)
S27
S28
S29
S30
S31
General Bit-Mapped Options: S27 reflects the
state of several "AT" commands.
Bit 0 1
3
0
0
0 = Normal Mode (AT&Q0)
1
0
1 = Error control enabled (AT&Q5)
0
1
1 = Direct Mode (AT&Q6)
Bit 2, 4-5, 7 Not Used
Bit 6
0 = CCITT Protocols (ATB0)
1 = Bell Protocols (ATB1)
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)
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)
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.
Range:
0 to 255
Units
10 milliseconds
Default
70
Disconnect on Inactivity Timer: S30 sets the
periond the modemis idle before it disconnects . A 0
disables the inactivity timer.
Range:
0 to 255
Units
10 Seconds
Default
0
S32
XON Character: S32 determines the ASCII character to be sent as XON for in-band flow control.
Range:
0 to 255
Units
ASCII Character
Default
11 (VT)
S33
XOFF Character: S32 determines the ASCII character to be recognized as XOFF for in-band flow control.
Range:
0 to 255
Units
ASCII Character
Default
19 (DC3)
S36
LAPM Failure: S36 instructs the modem what to do
if the error control negotiations fail.
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.
Bit 3-7
Not Used
S38
Forced Disconnect Timer: S38 sets the delay between 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.
Range:
0 to 255
Units
1 Second
Default
20
S39
Flow Control Bit-Mapped Options: S39 shows the
modem's flow control status, AT&K.
Bit 0-2
0 = Flow Control Disabled
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 3-7 Not use
General Bit-Mapped Options: S31 stores the status
of various AT commands.
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)
Bit 2-3
0 = Report host speed (ATW0)
1 = Report all parameters (ATW1)
2 = Report modem speed only (ATW2)
Bit 4-7
Not Used
XECOM
(12)
XE3314B
XE3314B Modem Registers (continued)
S40
S41
MNP Bit-Mapped Options: S40 shows the status of
the modem's MNP commands, .
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)
Bit 2
Not Used
Bit 3-5
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
Bit 6-7
0 = MNP Block size 64 characters
1 = MNP Block size 128 characters
2 = MNP Block size 192 characters
3 = MNP Block size 256 characters
General Bit-Mapped Options: S41 stores the condition of various "AT" commands.
Bit 0-1
0 = No Data Compression (AT%C0)
1 = MNP5 Data Compression
(AT&C1)
2 = V.42bis Data Compression
(AT&C2)
3 = Either MNP5 or V.42bis Data
Compression (AT&C3)
Bit
2, 6
0 0 = No Fallback/Forward (AT%E0)
1 0 = Retrain Enabled (AT%E1)
0 0 = Fallback/Forward Enabled
(AT%E2)
Bit 3-5, 7 Not Used
XECOM
S46
Data Compression Control: S46 selects whether or
not the modem will support data compression with error control.
S46=136 No data compression
S46=138 Data Compression selected
Default 138
S48
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
S86
Call Failure Code: S86 shows why the last "NO
CARRIER response was issued.
S86=0
Normal Disconnect
S86=4
Loss of Carrier
S86=5
V.42 Negotiation Failure
S86=9
Modem Handshake Failure
S86=12 Disconnect Initiated by remote
modem
S86=13 No response after 10 retries
S86=14 Protocol Violation
S95
Extended Result Codes: S95 permits the user to customize the extended result codes.
Bit 0
Connect result code shows link
speed
Bit 1
Add /ARQ to connect response
Bit 2
Add /VFC to Carrier response
Bit 3
Enable Protocol response
Bit 4
Not Used
Bit 5
Enable Compression Result Code
Bit 6
Not used
Bit 7
Not Used
(13)
XE3314B
XE3314B Class 1 Fax Commands
AT+FCLASS? - Service Class Indication
0 = Configured as a data modem
1 = Configured for Service Class 1.
AT+FCLASS=? - Service Class Capability
0 = Configured as a data modem
1 = Configured for Service Class 1.
AT+FCLASS=n - Set Service Class
0 = Configured as a data modem
1 = Configured for Service Class 1.
AT+FAE=n - Data/Fax Auto Answer
0 = Answer as a fax modem only
1 = Either a fax or data modem
AT+FRM<mod> - Receive Fax
(see AT+FRH for "mod" values)
AT+FRS<time> - Receive Silence
AT+FRTn - Receive Test Data
AT+FTH<mod> - Transmit HDLC Data
(see AT+FRH for "mod" values)
AT+FTM<mod> - Transmit Fax
(see AT+FRH for "mod" values)
AT+FTS<time> - Transmit Silence
AT+FTTn - Transmit Test Data
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
0
Verbose
Description
OK
Successfully executed
Digits
command line
1
CONNECT
300 bps connection
2
RING
Ring signal detected
3
NO CARRIER
Carrier not detected/lost
4
ERROR
Error in command line
5
CONNECT 1200
1200 bps connection
6
NO DIAL TONE
No dial tone detected
7
BUSY
Busy signal detected
8
NO ANSWER
5 second silence not
detected
10
CONNECT 2400
2400 bps Connection
11
CONNECT 4800
4800 bps Connection
12
CONNECT 9600
9600 bps Connection
13
CONNECT 7200
7200 bps Connection
14
CONNECT 12000
12,000 bps Connection
15
CONNECT 14400
14,400 bps Connection
16
CONNECT 19200
19,200 bps Connection
17
CONNECT 38400
38,400 bps Connection
18
CONNECT 57600
57,600 bps Connection
19
CONNECT 115200
115200 bps Connection
22
CONNECT 75TX/1200RX
Verbose
Description
47
CARRIER 2400
2400 bps carrier received
48
CARRIER 4800
4800 bps carrier received
49
CARRIER 7200
7200 bps carrier received
50
CARRIER 9600
9600 bps carrier received
51
CARRIER 12000
12,000 bps carrier received
52
CARRIER 14400
14,400 bps carrier received
53
CARRIER 16800
16,800 bps carrier received
54
CARRIER 19200
19,200 bps carrier received
55
CARRIER 21600
21,600 bps carrier received
56
CARRIER 24000
24,000 bps carrier received
57
CARRIER 26400
26,400 bps carrier received
58
CARRIER 28800
28,800 bps carrier received
59
CONNECT 16800
16,800 bps Connection
61
CONNECT 21600
21,600 bps Connection
62
CONNECT 24000
24,000 bps Connection
63
CONNECT 26400
26,400 bps Connection
64
CONNECT 28800
28,800 bps Connection
66
COMPRESSION: CLASS 5
MNP5 data compression
67
COMPRESSION: V.42bis
V.42bis data compression
69
COMPRESSION: NONE
V.23 originate connection
23
No data compression
76
PROTOCOL: NONE
V.23 answer connection
77
PROTOCOL: LAPM LAPM error correction
CONNECT 1200TX/75RX
No error correction
33
FAX
Fax connection
80
PROTOCOL: ALT
35
DATA
Data connection in Fax
81
PROTOCOL: ALT CELLULAR
mode
40
CARRIER 300
300 bps carrier received
44
CARRIER 1200/75
V.23 reverse channel
MNP error correction
MNP10 error correction
+F4
+FCERROR
Fax carrier error
carrier received
45
CARRIER 75/1200
V.23 forward channel
carrier received
46
CARRIER 1200
XECOM
1200 bps carrier received
(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 408945-6640 with any questions on whether your system qualifies
to use Xecom's FCC Registration Number.
In your operating instructions you must provide certain information 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.
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 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.
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:
This product complies with Part 68 of the FCC Rules and
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.
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.
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 notification 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 warranty, 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, unusual 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 circuits, 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) support 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 expected 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