ETC XE1486

XE1486
4/99
Compact 14,400 BPS Fax and Data Modem
Features
Description
Xecom's XE1486 combines high-speed data and Group
III send/receive fax in a compact component. Xecom
designed the XE1486 to be embedded by OEM designers. Xecom also offers pin compatible 2400 bps and
33.6 KBPS alternatives to the XE1486 for applications
needing slower or faster date rates.
The XE1486 is not a modem chip but a complete
modem including the telephone interface. It provides
user transferable FCC Part 68 registration and can
connect directly to the telephone line through an RJ11
jack. The modem connects to the host through a TTL
level serial interface. The XE1486 also includes
MNP2-4, MNP10 and V.42 error control and MNP5
and V.42bis data compression
•
Small Size; 1.385" x 1.36" x 0.575"
•
Modem control with "AT" commands
•
Class 1 Fax commands
•
Data transfer up to 14,400 bps
•
Send and receive fax to 14,400 bps
•
MNP and V.42 Error Control
•
MNP10 Error Control for Cellular Links
•
MNP5 Data Compression to 28,800 bps
•
V.42bis Data Compression to 57,600 bps
•
Low power, single +5V supply
Operating Power 750 mW (Typ.)
•
NVRAM for modem configuration storage
Block Diagram
XE1486 Pin Configuration
VCC
RST
TXD
RXD
/DCD
/CTS
/DSR
/DTR
/RTS
/V-D
(Top View)
RING
TIP
ROM
NVRAM
Modem
Controller
Analog
Front End
DAA
Tip
Ring
N/C
N/C
SPK
N/C
N/C
N/C
N/C
TXD
RXD
1o
2o
3
4
5
6
7
8
9
10
11
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
22
21
20
19
18
17
16
15
14
13
12
RTS
RST
GND
VCC
N/C
/DCD
/CTS
/RI
/DSR
/DTR
/V-D
Spk
Gnd
XECOM
(1)
XE1486
XE1486 Mechanical Specifications
INCHES
Dim
A
B
C
D
E
F
G
H
J
Min
METRIC(MM)
Max
1.350
1.375
0.555
0.120
0.090
0.115
0.280
0.790
1.090
1.370
1.395
0.585
0.140
0.110
0.135
0.300
0.810
1.110
Min
Max
34.29
34.92
14.10
3.05
2.29
2.92
7.11
20.07
27.69
34.80
35.43
14.86
3.56
2.79
3.43
7.62
20.57
28.19
A
B
Denotes Pin 1
Pins = 0.025 inches Square
C
D
G
G
F
H
F
E
J
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.
XECOM
(2)
XE1486
XE1486 Typical Connection Diagram
VCC
RJ11
FB1
3
4
C1
C2
Ring
Tip
XE1486
FB2
RST
Host Serial
Interface
Gnd
VCC
AMP
/DCD
/CTS
/RI
/DSR
/DTR
TXD
/V-D
RXD
Recommended Parts
Reference Designation
Description
Recommended Part Number
FB1, FB2
C1, C2
Ferrite Beads
Capacitors
TDK CB30-1812
Sprague 30GAT47, 470 pfd, 3000 Volts
Power Supply Characteristics(TA =
Symbol
Parameter
0 - 70°C, Vcc = 5v ±5%)
Typ
Max
Units
Vcc
Supply Voltage
5.0
5.25
Volts
Icc
Vcc Supply Current
150
180
mA
XECOM
(3)
Comments
Active, On Line
XE1486
XE1486 Pin Descriptions
PIN
NAME
1
Ring
Ring provides half of the two-wire connection to the telephone network, RJ-11 Pin 4.
A 1500 volt barrier isolates Ring from all other circuits. This isolation must be preserved throughout the system. The battery voltage on Ring may be positive or negative
with respect to Tip.
2
Tip
Tip provides half of the two-wire connection to the telephone network, RJ-11 Pin 3. A
1500 volt barrier isolates Tip from all other circuits. This isolation must be preserved
throughout the system. The battery voltage on Tip may be positive or negative with respect to Ring.
3, 4
Not Used
5
SPK
SPK provides the audio output to a speaker. Speaker output is controlled by the ATL
and ATM commands. The input impedance to the speaker driver must be greater than
300 ohms.
6-9
N/C
No Connection
10
TXD
TXD provides serial data input from the host. A logic high represents a "Mark" and a
low represents a "Space".
11
RXD
RXD provides serial data output to the host. A logic high represents a "Mark" and a
low represents a "Space".
12
/V-D
The Voice-Data output can be used to drive an external relay for switching between the
modem and handset connected to the same telephone line.
13
/DTR
Data Terminal Ready is an active low input to the modem. The AT&D command sets
the function of DTR.
14
/DSR
Data Set Ready is an active low output from the modem. Its operation is determined by
the AT&S command.
15
/RI
16
/CTS
The XE1486 uses Clear to Send for hardware flow control. With hardware flow control
active the modem raises \CTS to signal the host that the modem's transmit data buffer is
nearly full. When the buffer empties, the modem reactivates CTS.
17
/DCD
Data Carrier Detect goes low to indicate receipt of a valid incoming carrier. The
AT&C1 command enables the carrier detect function.
18
N/C
No Connection
19
VCC
VCC provides the +5 volt power required by the modem.
20
GND
Ground provides the common reference for the XE1486.
21
RST
This active high input causes a hardware reset in the XE1486. The reset pulse must be held high
for at least 10 milliseconds to correctly reset the modem.
22
RTS
The modem uses Request to Send for hardware flow control. The modem stops sending data to
the host when the hosts raises /RTS. The modem resumes transferring data to the host when the
host activates /RTS
XECOM
DESCRIPTION
No Connection should be made to these pins.
Ring Indicator is an active low output which marks the presence of a ring on the line.
(4)
XE1486
XE1486 Electrical Specifications (TA =
0 - 70°C, Vcc = 5v ±5%)
Parameter
Typ
Max
Unit
-2.2
0
dBm
3 second average
-10.5
-9.0
dBm
600 ohm line
10
pps
Min
DTMF Level
Modem Transmit Level
-12
Pulse Dialing Rate
Pulse Dialing Make/Break
Billing Delay Interval
39/61
%
2.0
Phone Line Impedance Match
600
ohms
38
150
VRMS
Telephone Loop Current
20
100
milliamps
Input High Voltage (TXD, RTS, DTR)
2.0
Type B Ringer
Off-hook
Volts
Input Low Voltage (TXD, RTS, DTR)
0.8
2.4
Volts
Volts
(DCD, DSR, CTS, RXD, RI, OH)
RXD -100 microamps;
DCD, RI, OH - 1.6 milliamps
Output Low Voltage
XECOM
USA
sec.
Ring Detect Sensitivity
Output High Voltage
Comments
0.4
(5)
Volts
RXD - 1.6 milliamps;
XE1486
XE3386 AT Commands
Modes of Operation
The XE1486 has three operational modes; Command,
Fax and Data.
Data Mode: The XE1486 enters data mode after it
establishes a connection and issues a "CONNECT" result
code. In the Data Mode the modem sends all signals on
Transmit Data to the remote modem and puts data from
the remote modem onto Received Data for the host
equipment. When the modem exits data mode, it issues a
"NO CARRIER" result code.
Command Mode: The XE1486 enters command mode
on power-up, 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.
Fax Mode: The XE1486 enters Class 1 fax mode on
receipt of AT+FCLASS=1. In fax mode commands and
responses are issued at 19,200 bits per second; the
character format is 8 bits no parity. The modem accepts
fax commands only in fax mode. The A/, ATO, AT&T
and escape commands are not valid in fax mode.
Command Line Format
Commands sent to the modem follow a strict format.
Each command line begins with the prefix AT. The
modem stores the command line in the command buffer
and executes it upon receipt of a carriage return. Until
executed, a backspace edits the command line.
Command Prefix - The "A" and "T" command prefix
may be both upper or both lower case but cannot be of
different cases. The prefix identifies the speed and parity
of the host. 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 XE1486 normally
sends result codes at the speed and parity determined by
the prefix.
Command Buffer - The command buffer accepts only
40 characters, including the AT prefix. If the command
buffer overflows, the modem issues an "ERROR" result
code and does not execute the commands.
Command Line Editing - The backspace edits the
command line. Hitting the backspace key, or Control and
H simultaneously on some systems, erases the previous
character in the command line. All characters can be
erased except for the "A" and "T." 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 last command line. This is
the only command that does not require the "AT" prefix.
Omitted Parameters - Most commands include a parameter which determines the command function. If the
command omits the parameter, he modem assumes the
parameter is a zero.
Escape Characters - A three character escape sequence
switches the modem from data mode to command mode
while remaining on line. The escape character, set by
Register S2, must be 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. The modem sends result codes as full
words, numeric codes or the user may disable the result
codes. Each result code ends with a carriage return when
the user chooses numeric result. The modem terminates
full word result codes with a Line Feed and Carriage
Return.
Command Line - One command line may include
multiple commands. The modem executes commands in
the sequence they appear. Spaces inserted into the
command line 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.
XECOM
(6)
XE1486
XE1486 AT Command List
A - Answer Command Bn - Select Communications Standard
n=0 Selects CCITT standards
n=1 Selects Bell standards*
Wn - Connect Message Rate n=0 Send "CONNECT" at DTE Rate*
n=1 Report line and DTE speed, Link protocol
n=2 "CONNECT" Reports Link speed
D - Dial Command L = Re-dial last number
P = Pulse dial
T =Tone dial
S=n = Dial stored number
W =Wait for dial tone
, = Pause for the duration of S8
@ = Wait for silence
! = Switch hook flash
; = Return to the command state
Xn - Result Code Set 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*
En - Command Echo
n=0
Do not echo commands
n=1
Enable command echo*
Zn - Reset n=0 Reset to user profile 0*
n=1 reset to user profile 1
Hn - Switch Hook Control n=0 Switch hook relay opens*
n=1 The switch hook relay closes
&Cn - DCD Operation
n=0 DCD is forced active.
n=1 DCD indicates a valid carrier*
In - Modem Identification
&Dn - DTR
n=0 DTR is ignored by the modem.
n=1 Switch to command mode if DTR revoked.
n=2 Modem disconnects if DTR revoked.*
n=3 Perform soft reset when DTR revoked
Ln - Speaker Volume n=0 Lowest speaker volume
n=1 Low speaker volume
n=2 Moderate speaker volume*
n=3 High speaker volume
Mn - Speaker Activity n=0 Speaker off
n=1 Speaker on until carrier received*
n=2 Speaker remains on
n=3 Speaker on until carrier detected.
Nn - Data Rate n=0 Handshake only at DTE rate
n=1 Initiate handshaking at rate set by S37;
Fallback if unsuccessful*
On - On Line
n=0 Return On Line with no retrain*
n=1 Initiate retrain returning On Line.
Qn - Responses
n=0 Send responses*
n=1 No Responses
Sr? - Interrogate Register Sr=n - Set Register Value Vn - Result Codes n=0 Numeric Result Codes
n=1 English Word Result Codes*
XECOM
Yn - Long Space Disconnect n=0 Long Space Disconnect Disabled*
n=1 Disconnect on long space
&Fn - Return to Factory Defaults
n=0 Restore configuration 0*
n=1 Restore configuration 1
&Gn - Guard Tone
n=0 Guard Tone Disabled*
n=1 550 Hz Guard Tone
n=2 1800 Hz Guard Tone
&Kn - Flow Control
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
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
n=0 Direct mode (no data buffering)*
n=5 Use Error Correction
n=6 Normal Mode (Speed buffering)
(7)
XE1486
XE1486 AT Command List (continued)
&Sn - DSR Operation
n=0 DSR always active*
n=1 DSR in accordance with V.25.
&Tn - 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
&Vn - View Configuration Profiles
n=0 View active profile & user profile 0*
n=1 View active profile & user profile 1
&Wn - Store Active Profile
n=0 Store active profile as profile 0*
n=1 Store active profile as profile 1
&Yn Default profile after reset.
n=0 Reset to Profile 0*
n=1 Reset to Profile 1
&Zn=x - Store number "x" in memory location "n"
%En n=0
n=1
n=2
Line Quality Monitor/Auto Retrain
Disabled
Enabled
Enable line quality and fallback / fall forward
%L - Read Received Signal Level
%Q - Read Line Signal Quality
\An - MNP Block Size
n=0 Maximum 64 characters
n=1 Maximum 128 characters
n=2 Maximum 192 characters
n=3 Maximum 256 characters*
\Bn - Transmit Break
\Gn - Set Modem Port Flow Control
n=0 Disables port flow control*
n=1 XON/XOFF port flow control
\Jn - DTE Rate Adjust
n=0 Serial port speed independent of link speed*
n=1 Serial port automatically set to link speed*
XECOM
Kn - Break control
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 buffered 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; 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 with Normal link.
n=0 Purge buffers, Immediately send break
n=1 same as n=0
n=2 Immediately send break to the host
n=3 Same as n=2
n=4 Send break to host in sequence with data.
n=5 Same as n=2*
Host initiates break (AT\B); Reliable link.
n=0 Purge buffers; immediately transmit break
n=1 Same as n=0
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*
\Nn - Error Control Selection
n=0 Normal mode, no error correction
n=1 Direct mode, no buffering or error correction
n=2 Reliable mode, LAPM or MNP required
n=3 V.42 Auto-reliable mode *
n=4 V.42 Reliable mode, LAPM required
n=5 MNP Reliable mode, MNP required
-Kn - MNP Extended Services
n=0 No LAPM to MNP10 conversion
n=1 LAPM to MNP10 conversion*
n=2 LAPM to MNP10 conversion; no initiation of
MNP Extended Service during V.42 LAPM
answer mode detection.
(8)
XE1486
XE1486 S-Registers
S0
S1
S2
S3
S4
Answer on nth Ring: S0 sets the modem to answer on the nth ring. Setting S0 to 0 disables automatic answer.
Range: 0 to 255
Units
Rings
Default 0
S7
Ring Count: S1 is a read-only register. It
shows the number of rings detected. If a ring is
not detected within 8 seconds, the counter is reset to zero.
Range: 0 to 255
Units
Rings
Default 0
S8
Wait for Carrier after Dialing: S7 sets the
time the modem waits for a valid carrier after dialing.
Range:
Units
Default
1 to 255
Seconds
50
Comma Pause Time: S8 defines the length of
the pause caused by a comma in the dial string.
Range:
Units
Default
1 to 255
Seconds
50
S9
Escape Character: S2 determines the ASCII
character used in the escape sequence. 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 (+)
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
Carriage Return Character: S3 determines
the character used as a carriage return to terminate commands and inserted in modem responses.
Range: 0 to 127
Units
ASCII Character
Default 13 (Carriage Return)
Carrier Off Disconnect Delay: S10 selects
how long carrier must be lost before the modem
disconnect. Note: If S10 is smaller than S9, the
modem will not disconnect on loss of carrier.
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 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
Line Feed Character: S4 sets the character to
act as a line feed in modem responses.
Range: 0 to 127
Units
ASCII Character
Default 10 (Line Feed)
S5
Back Space Character: S5 sets the 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.
The minimum wait Time is two seconds.
Range: 2 to 255
Units
Seconds
Default 2
XECOM
(9)
XE1486
XE1486 S-Registers (continued)
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
S16
Test Status: S16 shows modem test status
Bit 0
0 = No Local Analog Loopback
1 = Local ALB Active
Bit 1, 7
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
S18
Test Timer: S18 sets the duration of all tests.
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 (&S0)
1= DSR on when modem ready (&S1)
Bit 7
0 = No disconnect on Space (ATY0)
1 = Disconnect on Space (ATY1)
XECOM
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 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
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)
(10)
XE1486
XE1486 S-Registers (continued)
S28
S29
Pulse Dialing Bit-Mapped Options: S28
stores the modem's pulse dialing format.
Bit 0-2 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)
Bit 5-7 Not Used
Hook Flash Timer: S29 sets the length of 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
modem to disconnect after the given time period
with no data being sent or received. 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
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
S32
XON Character: S32 determines the character
to be sent as XON for in-band flow control.
Range: 0 to 255
Units
ASCII Character
Default 11 (VT)
XECOM
S33
XOFF Character: S32 determines the character
recognized as XOFF for in-band flow control.
Range:
0 to 255
Units
ASCII Character
Default 19 (DC3)
S36
LAPM Failure: S36 sets the modem reaction to
error control negotiation failure.
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
Bit 3-7
MNP handshake fails.
7 = Establish Normal Connection if
MNP handshake fails.
Not Used
S38
Forced Disconnect Timer: S38 sets the delay
between receipt of the disconnect command and
the 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 status of the flow control options,
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 = Hardware & In-Band Flow Control
Bit 3-7 Not used
(11)
XE1486
XE1486 S-Registers (continued)
S40
MNP Bit-Mapped Options: S40 shows the
status of the modem's MNP commands, .
Bit 0-1 0 = No LAPM - MNP10 conversion
(-K0)
1 = LAPM - MNP10 conversion active
(-K1)
2 = LAPM - MNP10 conversion active
except for LAPM answer mode
(-K1)
Bit 2 Not Used
Bit 3-5 0 = \K0 break handling selected
1 = \K1 break handling selected
2 = \K2 break handling selected
3 = \K3 break handling selected
4 = \K4 break handling selected
5 =\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
S41
General Bit-Mapped Options: S41 stores the
condition of various "AT" commands.
Bit 0-1 0 = No Data Compression (%C0)
1 = MNP5 Data Compression (&C1)
2 = V.42bis Data Compression (&C2)
3 = Either MNP5 or V.42bis Data
Compression (&C3)
Bit
2, 6
0 0 = No Fallback/Forward (%E0)
1 0 = Retrain Enabled (%E1)
0 0 = Fallback/Forward Enabled
(%E2)
Bit 3-5, 7 Not Used
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
XECOM
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
(12)
XE1486
XE1486 Result Codes
Digits
0
Verbose
Description
OK
Command executed
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
Digits
Verbose
Description
40
CARRIER 300
300 bps carrier received
44
CARRIER 1200/75
45
CARRIER 75/1200
46
CARRIER 1200
V.23 reverse channel
carrier received
V.23 forward channel
carrier received
1200 bps carrier received
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
66
10
CONNECT 2400
No 5 seconds of silence
detected
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
76
COMPRESSION: CLASS 5
MNP5 data compression
COMPRESSION: V.42bis
V.42bis data compression
COMPRESSION: NONE
No data compression
PROTOCOL: NONE No error correction
18
CONNECT 57600
57,600 bps Connection
77
PROTOCOL: LAPM LAPM error correction
22
80
PROTOCOL: ALT
81
PROTOCOL: ALT CELLULAR
MNP10 error correction
33
CONNECT 75TX/1200RX
V.23 originate connection
CONNECT 1200TX/75RX
V.23 answer connection
FAX
Fax connection
35
DATA
23
XECOM
67
69
+F4
+FCERROR
MNP error correction
Fax carrier error
Data connection from
Fax mode
(13)
XE1486
XE1486 Class 1 Fax Commands
AT+FCLASS? - Service Class Indication
0 = Configured as a data modem
1 = Configured for Service Class 1.
AT+FRM<mod> - Receive Fax
(see AT+FRH for "mod" values)
AT+FCLASS=? - Service Class Capability
0 = Configured as a data modem
1 = Configured for Service Class 1.
AT+FRS<time> - Receive Silence
AT+FCLASS=n - Set Service Class
0 = Configured as a data modem
1 = Configured for Service Class 1.
AT+FTH<mod> - Transmit HDLC Data
(see AT+FRH for "mod" values)
AT+FAE=n - Data/Fax Auto Answer
0 = Answer as a fax modem only
1 = Either a fax or data modem
AT+FF - Enhanced Flow Control
AT+FRTn - Receive Test Data
AT+FTM<mod> - Transmit Fax
(see AT+FRH for "mod" values)
AT+FTS<time> - Transmit Silence
AT+FTTn - Transmit Test Data
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)
XE1486
XE1486 FCC Instructions
This product complies with Part 68 of the FCC Rules and Regulations. Each device shipped includes a label which
contains the FCC Registration Number and Ringer Equivalence (REN). If requested, this FCC information must be
provided to the telephone company. A registration label must be affixed to the cabinet's exterior for each device
mounted within a closed assembly.
Ringer Equivalence (REN) is used to calculate the number of devices you may connect to one telephone line and still
have all of the devices respond to an incoming call. Typically, the sum of the RENs of all devices connected to one
line should not exceed five (5.0). Contact your local telephone company to determine the maximum REN for your
area.
Mount this device in the final assembly so as to prevent exposure to any hazardous voltages in the system and to
preserve the high voltage protection between Tip/Ring and the rest of the system. Installation must provide adequate
separation and restraint of cables and cords. Xecom recommends maintaining a minimum of .100 inches between the
Tip and Ring traces and all other circuits. No circuitry may be added between Tip/Ring and the telephone line
connection unless specifically allowed by the rules.
This device requires use of an RSOC RJ-11C jack for the telephone line connection. The jack selected must be
certified to meet FCC Part 68 subpart F requirements.
If you experience trouble with this device, contact XECOM at (408)945-6640 to obtain service. There are no repairs
the customer may make to this device. If your system causes harm to the telephone network, the telephone company
may discontinue service temporarily until the problem has been corrected or it is demonstrated that the device is not
malfunctioning. If possible, you will be notified in advance that service is being discontinued. If advance notice is not
practical, you will be notified as soon as possible.
Your telephone company may make changes to their facilities, equipment, or operation that affect proper functioning
of your equipment. You will be notified in advance of such changes to give you the opportunity to maintain
uninterrupted telephone service.
This device cannot be used on coin operated telephone lines provided by the telephone company. Connection of this
equipment to party lines is subject to state tariffs.
Any one using this device for fax transfer must include sender identification information as required in the Telephone
Consumer Protection Act of 1991. The Telephone Consumer Protection Act of 1991 makes it unlawful to send a fax
without clearly identifying the fax sender (business or individual) and the number of the transmitting fax machine.
This information may be provided either on the first page of the fax or in the top or bottom margin of each page. The
number listed may not be a 900 number or other number for which charges exceed local or long distance transmission.
The final assembler must provide these FCC instructions to the end user of the equipment.
XECOM
(15)
XE1486
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 © 1999
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 E-Mail: [email protected]
XECOM
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XE1486