ETC XE3314L

XE3314L
October 2000
Compact 33.6 KBPS Modem Module for Embedded Applications
Description
Xecom's XE3314L is a complete, 33.6 Kbps modem in a
single component. The XE3314L can be used in throughout North America and Japan. It includes user transferrable FCC Part 68 Registration.
The XE3314L is a complete modem including the DAA.
XE3314L users do not need to add RAM, ROM, Crystals,
low distortion transformer, or switches to complete the
modem design. The user only needs to provide the TTL
level, serial interface and the telephone line connection.
Features
* User Transferrable FCC Part 68 Registration
* Small Size: 2.75 inches by 1.38 inches by 0.42 inches;
* Modem Protocols for data transfer from 33.6 KBPS
down to 300 BPS: V.34bis, V.34, V.32bis, V.32,
V.22bis, V.22, V.21, Bell 212A and 103;
* Modem Control and Configuration via standard AT
Commands
* Fax Protocols: V.17, V.29, V.27ter, and V.21 channel 2
* Error Correction; V.42, MNP2-4 and MNP10
The XE3314L is a full-featured modem. The XE3314L
* Data Compression; V.42bis and MNP5 provides a
supports data compression, error correction and fax transfer. The XE3314L also includes NVRAM for permanent
storage of the modem configuration.
maximum effective data rate of 133,400 bps.
* Non-Volatile Memory for storing telephone numbers
and modem configuration.
The XE3314L is pin compatible with Xecom's XE1414L, * Standard operating temperature range 0C to 70C.
Extended operating temperature range of -40C to +85C
and XE5614L modems. This family of modems permits a
is availalble.
simple upgrade path from 14,400 bps to 56,000 bps.
Block Diagram
Serial I/O
/DTR
/RTS
/CTS
/DSR
TXD
RXD
/DCD
Auxiliary I/O
ROM
Analog
Front
End
Modem
Controller
Tip
DAA
Ring
NVRAM
RESET
AR
OH
AMP
XECOM
(1)
XE3314L
XE3314L 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
Pins = 0.025 inch square pin; All pins tin-plated
C
K
G
G
D
H
J
E
F
H
XE3314L PIN CONFIGURATION
XECOM
NC
AR
RXD
NC
NC
NC
NC
NC
/DTR
NC
/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
NC
NC
22
21
AMP
GND
XE3314L
XE3314L 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
4-8
NC
9
\DTR
10
NC
11
\CTS
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 XE3314L 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 pin 3) from the internal DAA. The XE3314L is not sensitive to
the battery voltage polarity across Tip and Ring.
20
RING
Ring connection to the phone line (RJ11 pin 4) 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.
27-29
N/C
No Internal Connection
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 XE3314L.
31-35
N/C
No Internal Connection
36
RESET
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
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".
No Internal Connection
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 reasserted.
No Internal Connection
Clear to Send, Output, active Low, TTL/CMOS. \CTS provides the flow control output from the modem
when hardware flow control is selected. The modem revokes \CTS when the modem's input buffer is
full. The modem reasserts \CTS when the buffer can accept more data without a buffer overflow.
No Internal Connection
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 held a minimum of 100 milliseconds.
No Internal Connection
+5 Volts
(3)
XE3314L
XE3314L 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)
260° C
OPERATING TEMPERATURE RANGE
0 TO 70° C
*Exceeding these values may result in permanent damage to the device.
XE3314L ELECTRICAL SPECIFICATIONS
Parameter
Min
VCC
4.75
ICC
130
Typ
Max
Units
5.25
Volts
160
ma
140
45
Ring Voltage Detected
Comments
On Line
Sleep Mode
38
150
RMS
Type B Ringer
Ring Frequency Detected
15.3
68
Hz
Type B Ringer
Telephone Loop Current
20
100
ma
Off-Hook
Data Transmit level
-12
-10.5
-9.0
dBm
-2.5
0
dBm
DTMF Transmit Level
XECOM
(4)
Avg over 3 second interval
XE3314L
XE3314L Typical Connection Diagram
+ 5 Volts
/DCD
/DSR
VCC
16C550
UART
SIN
XE3314L
/DTR
/DTR
/CTS
/CTS
SOUT
TXD
/RTS
/RTS
/RI
RJ11
/DSR
RXD
/RI
FB1
3
/DCD
TIP
.2 ufd
AMP
FB2
4
RING
GND
50K
C2
C1
LM386
250 ufd
8 ohm,
.5 W
speaker
.05 ufd
10 ohms
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
FB1, FB2
Ferrite Beads
TDK ACB2012L-120-X
C1, C2
470 pfd 2600 VAC Capacitors
Panasonic ECKDR471
J1
RJ11 Jack
Stewart SS6446NF
XECOM
(5)
XE3314L
XE3314L AT COMMANDS
Modes of Operation
The XE3314L uses "AT" commands for modem control
and configuration. The XE3314L operates in three
modes; Command Mode, Fax Mode and Data Mode.
Extensions to the AT command set support fax
operation.
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.
Data Mode: The modem enters data mode after
establishing a modem link and issues a "CONNECT"
result code. In Data Mode the modem modulates all
signals presented 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 Buffer - The command buffer holds a
maximum of 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 line any time before it is executed.
The backspace character 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.
Command Mode: The XE3314L 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.
Re-Execute Last Command - The A/ command causes
the XE3314L to re-execute the command line stored in
the command buffer. This is the only command which
does not require the "AT" prefix.
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.
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.
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.
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 "+++."
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
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
(6)
XE3314L
XE3314L AT COMMANDS (continued)
Mn - Speaker Activity - ATMn determines when the
List of Commands
An asterisk indicates the default setting of the command for the modem's audio output is active.
n=0 Speaker off
XE3314L.
n=1 Speaker on until carrier received*
n=2 Speaker remains on
A - Answer Command - ATA forces the modem to
n=3 Speaker off during dialing, on until carrier
immediately go off-hook and begin transmitting the answer
tone sequence.
On - On Line - ATOn switches the modem from the command
mode to the data mode.
Bn - Select Communications Standard - ATBn selects the
n=0 Return On Line with no retrain*
modulation scheme used for connections below 2400 bits per
n=1 Initiate retrain returning On Line.
second
n=0
Selects CCITT standards
Qn - Responses - ATQn determines if the modem will issue
n=1
Selects Bell standards*
responses.
n=0 Send responses*
D - Dial Command - Below are the characters accepted in a
n=1 No Responses
dialing command.
0-9, #, * = Dialing Digits
Sr? - Interrogate Register - ATSr? requests the current value
L = Re-dial last number
in register Sr.
P = Pulse dial
T = Tone dial
Sr=n - Set Register Value - ATsr=n sets the value of register
S=n = Dial stored number
Sr to n.
W = Wait for dial tone
^ = Toggles state of calling tone
Vn - Result Codes - ATVn sets the modem to issue Numeric
, = Pause for the duration of S8
or Full Word result codes .
@ = Wait for silence
n=0 Numeric Result Codes
! = Switch hook flash
n=1 English Word Result Codes*
; = 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 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
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*
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
(7)
XE3314L
XE3314L AT COMMANDS (continued)
&Cn - DCD Operation - AT&Cn determines the operation of &Tn - Test Modes - AT&T selects modem test mode.
n=0 Exit test mode
the DCD output.
n=1 Local analog loopback
n=0 DCD is forced active.
n=1 DCD indicates a valid carrier*
&Vn - View Configuration Profiles - AT&V permits the user
to check on the modems current configuration or conditions of
&Dn - DTR - AT&Dn determines how the modem will
the last call
respond to changes to DTR.
n=0 View active profile & user profiles *
n=0 DTR is ignored by the modem.
n=1 View statistics on last call
n=1 Enter command mode if DTR revoked.
n=2 Disconnect if DTR revoked.*
&Wn - Store Active Profile - AT&Wn stores the current
n=3 Soft reset when DTR revoked
modem configuration in NVRAM.
n=0 Store active profile as profile 0*
&Fn - Return to Factory Defaults - AT&Fn returns the
n=1 Store active profile as profile 1
modem configuration to one of two factory configurations.
n=0 Restore configuration 0*
&Yn - Recall Stored Profile - AT&Yn sets the stored modem
n=1 Restore configuration 1
configuration to be used after a hard reset.
n=0 Recall profile 0 on power-up*
&Gn - Guard Tone - AT&Gn controls the guard tone
n=1 Recall profile 1 on power-up
produced by the modem
n=0 Guard Tone Disabled*
&Zn=x - Store telephone number "x" in memory location
n=1 Guard Tone Disabled
"n"
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
&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
&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)
%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
%L - Read Received Signal Level - AT%L permits the user
to read the magnitude of the receive signal in dBm.
%Q - Read Line Signal Quality - AT%Q permits the user to
read the EQM value of the received signal.
\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
&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.
XECOM
(8)
XE3314L
XE3314L AT COMMANDS (continued)
\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
command 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 *
-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
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)
V34 - V.34 (16,800 to 33,600 BPS)
b - Automode Detection
0 - Automatic Negotiation Disabled
1 - Automatic Negotiation Enabled
c - Minimum Receive Data Rate (300 to 33600 BPS)
d - Maximum Receive Data Rate (300 to 33600 BPS)
e - Minimum Transmit Data Rate (300 to 33600 BPS)
f - Maximum Transmit Data Rate (300 to 33600 BPS)
Break received from modem during a non-error corrected 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
Default: AT+MS=V34, 1, 300, 300, 300, 33600
/V<value> - Single Line Connect Messages - This command
allows users to select single line connect messages in the
format 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
XECOM
(9)
XE3314L
XE3314L Modem Registers
S7 Wait for Carrier after Dialing: S7 determines how long
the modem waits for a valid carrier signal after dialing.
Range:
1 to 255
Units
Seconds
Default
50
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
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 set 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
S9 Reserved
S2 Escape Character: S2 sets 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 (+)
S3 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)
S4 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)
S5 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)
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:
2 to 255
Units
Seconds
Default
2
XECOM
S10 Carrier Off Disconnect Delay: S10 selects how long
carrier must be lost before the modem disconnects.
Range:
1 to 255
Units
0.1 Seconds
Default
14
S11 Tone Dialing Speed: S10 sets the duration and spacing of
the dialing tones. S11 does not affect pulse dialing.
Range:
50 to 255
Units
1 Millisecond
Default
95
S12 Escape Code Guard Timer: S12 sets the guard timer for
the escape sequence. If characters are received within the
guard time, the modem aborts the escape attempt and
remains in data mode.
Range:
0 to 255
Units
0.02 Seconds
Default
50
S14 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
(10)
XE3314L
XE3314L Modem Registers (continued)
S16 Test Status: S16 shows the modem test status.
Bit 0 0 = No Local Analog Loopback
1 = Local ALB Active
Bit 2 - 7Not Used
S21 General Bit-Mapped Options: S21 reflects the state of
several "AT" commands.
Bit 0-2, 7 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 (&S0)
1= DSR on when modem ready (&S1)
S22 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
S23 General Bit-Mapped Options: S23 reflects the state of
several "AT" commands.
Bit 0-5 Not Used
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
S24 Sleep Mode Timer: S24 sets the length of time in
seconds that the modem must be idle before entering the
low power, sleep mode. When S24 is set to 0, sleep
mode is disabled.
Range:
0 to 255
Units:
seconds
Default: 0
XECOM
S27 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)
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)
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)
S29 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
S30 Disconnect on Inactivity Timer: S30 sets the period the
modem is idle before it disconnects. A 0 disables the inactivity timer.
Range: 0 to 255
Units 10 Seconds
Default 0
S31 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, 4-7
Not Used
Bit 2-3 0 = Report host speed (ATW0)
1 = Report all parameters (ATW1)
2 = Report modem speed only (ATW2)
(11)
XE3314L
XE3314L Modem Registers (continued)
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
Bit 3-7 Not use
S41 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 (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
S46 Data Compression Control: S46 selects whether or not
the modem will support data compression.
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
S86 Call Failure Code: S86 shows why the last "NO CARRIER response was issued.
S86=0
Normal Disconnect
S86=3
Call Waiting caused Disconnect
S86=4
Loss of Carrier
S40 MNP Bit-Mapped Options: S40 shows the status of the
S86=5
V.42 Negotiation Failure
modem's MNP commands, .
S86=6
No response to feature Negotiation
Bit 0-1 0 = No LAPM/MNP10 conversion (AT-K0)
S86=7
Other modem is Synchronous modem
1 = Enable LAPM/MNP10 conversion (AT-K1)
S86=8
No common framing technique
2 = Enable LAPM to MNP10 conversion except
S86=9
Modem Handshake Failure
for LAPM answer mode (AT-K1)
S86=10
Bad response to Feature Negotiation
Bit 2
Not Used
S86=12
Disconnect Initiated by remote modem
Bit 3-5 0 = AT\K0 break handling selected
S86=13
No response after 10 retries
1 = AT\K1 break handling selected
S86=14
Protocol Violation
2 = AT\K2 break handling selected
S86=15
Lost DTR
3 = AT\K3 break handling selected
S86=16
Received GSTN cleardown
4 = AT\K4 break handling selected
S86=17
Inactivity timeout
5 = AT\K5 break handling selected
S86=18
Speed not supported
Bit 6-7
Not Used
S86=20
Key abort disconnect
S86=22
No connection established
S86=23
Disconnect after 3 retrains
S86=24
Call Waiting tone detected
XECOM
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XE3314L
XE3314L Modem Registers (continued)
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
XE3314L 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
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XE3314L
XE3314L Modem Result Codes
Digits
Verbose
Description
Digits
Verbose
Successfully executed command line
52
+MRR: 14400
14,400 bps carrier received
CONNECT
300 bps connection
53
+MRR: 16800
16,800 bps carrier received
2
RING
Ring signal detected
54
+MRR: 19200
19,200 bps carrier received
3
NO CARRIER
Carrier not detected/lost
55
+MRR: 21600
21,600 bps carrier received
4
ERROR
Error in command line
56
+MRR: 24000
24,000 bps carrier received
5
CONNECT 1200
1200 bps connection
57
+MRR: 26400
26,400 bps carrier received
6
NO DIAL TONE
No dial tone detected
58
+MRR: 28800
7
BUSY
Busy signal detected
59
CONNECT 16800
16,800 bps connection
0
OK
1
Description
28,800 bps carrier received
8
NO ANSWER
5 second silence not detected
61
CONNECT 21600
21,600 bps connection
9
CONNECT 600
600 bps connection
62
CONNECT 24000
24,000 bps connection
10
CONNECT 2400
2400 bps Connection
63
CONNECT 26400
26,400 bps connection
11
CONNECT 4800
4800 bps Connection
64
CONNECT 28800
12
CONNECT 9600
9600 bps Connection
66
+DR: Alt
13
CONNECT 7200
7200 bps Connection
67
+DR: V42B
V.42bis data compression
14
CONNECT 12000
12,000 bps Connection
69
+DR: NONE
No data compression
15
CONNECT 14400
14,400 bps Connection
70
+ER: NONE
No error correction
16
CONNECT 19200
19,200 bps Connection
77
+ER: LAPM
LAPM error correction
17
CONNECT 38400
38,400 bps Connection
78
+MRR:31200
31,200 bps carrier received
18
CONNECT 57600
57,600 bps Connection
79
+MRR: 33600
19
CONNECT 115200
115200 bps Connection
80
+ER: ALT
22
CONNECT 75TX/1200RX
.23 originate connection
81
+ER: ALT CELLULAR
MNP10 error correction
23
CONNECT 1200TX/75RX
V.23 answer connection
84
CONNECT 33600
33,600 bps Connection
31,200 bps Connection
33
FAX
35
DATA
40
+MRR: 300
44
45
46
28,800 bps connection
MNP5 data compression
33,600 bps carrier received
MNP error correction
Fax connection
91
CONNECT 31200
Data connection in Fax mode
134
+MCR: B103
Bell 103 Connection
300 bps carrier received
135
+MCR: B212
Bell 212A Connection
+MRR: 1200/75
V.23 reverse channel carrier received
136
+MCR: V21
V.21 Connection
+MRR: 75/1200
V.23 forward channel carrier received
137
+MCR: V22
V.22 Connection
+MRR: 1200
1200 bps carrier received
138
+MCR: V22B
V.22bis Connection
47
+MRR: 2400
2400 bps carrier received
139
+MCR: V23
V.23 Connection
48
+MRR: 4800
4800 bps carrier received
140
+MCR: V32
V.32 Connection
49
+MRR: 7200
7200 bps carrier received
141
+MCR: V32B
50
+MRR: 9600
9600 bps carrier received
142
+MCR: V34
V.34 Connection
51
+MRR: 12000
12,000 bps carrier received
+F4
+FCERROR
Fax carrier error
XECOM
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V.32bis Connection
XE3314L
XE3314L FCC Registration
All equipment connected to the public telephone network in
If your system causes harm to the telephone network, the
the United States must have FCC Part 68 Registration. Part 68
telephone company may discontinue service temporarily. If
registration certifies that the device will not cause harm to the
possible, they will notify you in advance. If advance notifica-
telephone network. The XE3314L provides a user transferable
tion is not practical, you will be notified as soon as possible.
FCC Registration. This permits XE3314L customers to use
our FCC registration number without submitting their systems
Your telephone company may make changes in its facilities,
for additional testing. Call Xecom technical support at 408-
equipment, operations or procedures that could affect proper
945-6640 with any questions on whether your system qualifies
functioning of your equipment. If they do, you will be notified
to use Xecom's FCC Registration Number.
in advance to give you an opportunity to maintain uninterrupted telephone service.
In your operating instructions you must provide certain information to the end user of the modem. The instructions should
If you experience trouble with this device, please contact
include most of the instructions shown below.
Only the
XECOM at (408) 945-6640 for assistance. The telephone
information regarding the mounting of the device in the final
company may ask you to disconnect this device from the
assembly should be omitted.
network until the problem has been corrected or until you are
sure that the device is not malfunctioning.
FCC Instructions:
This product complies with Part 68 of the FCC Rules and
The device may not be used on coin service lines provided by
Regulations. On each device shipped, there is a label which
the telephone company (this does not apply to private coin
contains, among other information, the FCC Registration
telephone applications which use standard telephone lines).
Number and Ringer Equivalence Number (REN) for this
Connection to party lines is subject to state tariffs.
product. You must, upon request, provide this information to
your telephone company.
FCC Labels:
FCC rules also require a label which is visible from the outside
The mounting of this device in the final assembly must be
of the equipment. The label should display Xecom's name as
made in such a manner as to preserve the high voltage
holder of the FCC Registration, the FCC Registration Number
protection between the TIP/RING Connection and the rest of
and Ringer Equivalence of the modem. This is the same
the system. Typically, this may be accomplished by maintain-
information which appears on the top of each XE3314L
ing a minimum spacing .100 mils between the TIP/RING
module.
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.
XECOM
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XE3314L
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
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XE3314L