Datasheet XE3386 Datasheet (XECOM)

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Page 1

XECOM (1) XE3386

XE3386

4/99

Compact 33,600 BPS Data and Fax Modem

Description

Xecom's XE3386 combines high-speed data and Group III send/receive fax in a compact component. Xecom designed the XE3386 to be embedded by OEM designers. Xecom also offers pin compatible 2400 bps and

14.4 KBPS alternatives to the XE3386 for applications needing slower date rates.

The XE3386 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 XE3386 also includes MNP2-4, MNP10 and V.42 error control and MNP5 and V.42bis data compression

Features

• Small Size; 1.385 " x 1.36" x 0.575"

• Modem control with "AT" commands

• Class 1 Fax commands

• Data transfer up to 33,600 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 67,200 bps

• V.42bis Data Compression to 115,200 bps

• Low power, single +5V supply Operating Power 1000 mW (Typ.)

• NVRAM for modem configuration storage

RING

TIP

N/C N/C

SPK

N/C N/C N/C

N/C TXD RXD

RTS RST GND VCC N/C /DCD /CTS /RI /DSR /DTR /V-D

Modem

Controller

ROM NVRAM

Analog

Front End

DAA

Tip Ring

Spk

Gnd

(Top View)

VCC

RST TXD RXD

/DCD

/CTS

/DSR /DTR

/RTS /V-D

Block Diagram

XE3386 Pin Configuration

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XECOM (2) XE3386

Dim Min Max Min Max

A 1.350 1.370 34.29 34.80 B 1.375 1.395 34.92 35.43 C 0.555 0.585 14.10 14.86 D 0.120 0.140 3.05 3.56 E 0.090 0.110 2.29 2.79 F 0.115 0.135 2.92 3.43 G 0.280 0.300 7.11 7.62 H 0.790 0.810 20.07 20.57 J 1.090 1.110 27.69 28.19

INCHES METRIC(MM)

Denotes Pin 1

Pins = 0.025 inches Square

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.

XE3386 Mechanical Specifications

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XECOM (3) XE3386

VCC

TXD

AMP

Host Serial Interface

XE1486

3 4

RJ11

Ring

Tip

C1 C2

FB1

FB2

RXD

RST Gnd VCC

/DCD /CTS /RI /DSR /DTR /V-D

Recommended Parts

Reference Designation Description Recommended Part Number

FB1, FB2 Ferrite Beads TDK CB30-1812

C1, C2 Capacitors Sprague 30GAT47, 470 pfd, 3000 Volts

Power Supply Characteristics(T

= 0 - 70°C, Vcc = 5v ±5%)

Vcc Supply Voltage 5.0 5.25 Volts

Icc Vcc Supply Current 200 220 mA Active, On Line

Symbol Parameter T yp Max Units Comments

XE3386

XE3386 Typical Connection Diagram

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XECOM (4) XE3386

XE3386 Pin Descriptions

PIN NAME DESCRIPTION

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 No Connection should be made to these pins.

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 Ring Indicator is an active low output which marks the presence of a ring on the line. 16 /CTS The XE3386 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 XE3386. 21 RST This active high input causes a hardware reset in the XE3386. 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

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XECOM (5) XE3386

Parameter Min Typ Max Unit Comments

DTMF Level -2.2 0 dBm 3 second average

Modem Transmit Level -12 -10.5 -9.0 dBm 600 ohm line

Pulse Dialing Rate 10 pps

Pulse Dialing Make/Break 39/61 % USA

Billing Delay Interval 2.0 sec.

Phone Line Impedance Match 600 ohms

Ring Detect Sensitivity 38 150 VRMS Type B Ringer

Telephone Loop Current 20 100 milliamps Off-hook

Input High Voltage (TXD, RTS, DTR) 2.0 Volts

Input Low Voltage (TXD, RTS, DTR) 0.8 Volts

Output High Voltage 2.4 Volts RXD -100 microamps; (DCD, DSR, CTS, RXD, RI, OH) DCD, RI, OH - 1.6 milliamps

Output Low Voltage 0.4 Volts RXD - 1.6 milliamps;

XE3386 Electrical Specifications (T

= 0 - 70°C, Vcc = 5v ±5%)

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XECOM (6) XE3386

Modes of Operation

The XE3386 has three operational modes; Command, Fax and Data.

Data Mode: The XE3386 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 XE3386 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 XE3386 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 XE3386 normally sends result codes at the speed and parity determined by the prefix.

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.

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.

XE3386 AT Commands

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XECOM (7) XE3386

A - Answer Command Bn - Select Communications Standard

n=0 Selects CCITT standards n=1 Selects Bell standards*

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

En - Command Echo

n=0 Do not echo commands n=1 Enable command echo*

Hn - Switch Hook Control -

n=0 Switch hook relay opens* n=1 The switch hook relay closes

In - Modem Identification 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*

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

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*

Yn - Long Space Disconnect -

n=0 Long Space Disconnect Disabled* n=1 Disconnect on long space

Zn - Reset -

n=0 Reset to user profile 0* n=1 reset to user profile 1

&Cn - DCD Operation

n=0 DCD is forced active. n=1 DCD indicates a valid carrier*

&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

&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)*

XE3386 AT Command List

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XECOM (8) XE3386

&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 - Line Quality Monitor/Auto Retrain

n=0 Disabled n=1 Enabled n=2 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*

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

\Vn - Single Line Connect Message

n=0 Connect Response controlled by ATX, ATW,

and S95*

n=1 Connect Responses inssued in a single line.

-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.

XE3386 AT Command List (continued)

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XECOM (9) XE3386

XE3386 AT Command List (continued)

-SEC=n,t - MNP10-EC

n=0 No MNP10-EC n=1, t Enable MNP10-EC with transmit

level -t dBm where t can be values 0 to 30

+MS - Modulation Selection

This command sets the data rates and modulation to be supported by the modem. It is presented in the extended format shown below .

+MS=<modulation><automode><minimum data

rate><max imum data rate><CR>

Modulation type 0 = V.21

1 = V.22 2 = V.22bis 3 = V.23 9 = V.32 10 = V.32bis 11 = V.34

Automode 0 = Automode Disabled, use

only the selected modulation 1 = Automode Enabled

Minimum Data Rate 300 = 300 bps

1200 = 1200 bps 2400 = 2400 bps 4800 = 4800 bps 7200 = 7200 bps 9600 = 9600 bps 12000 = 12000 bps 14400 = 14400 bps 16800 = 16800 bps 19200 = 19200 bps 21600 = 21600 bps 24000 = 24000 bps 26400 = 26400 bps 28800 = 28800 bps 31200 = 31200 bps 33600 = 33600 bps

Maximum Data Rate 300 = 300 bps

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XECOM (10) XE3386

S0 Answer on nth Ring: S0 sets the modem to an-

swer 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. 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

S2 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 (+)

S3 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)

S4 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

S7 Wait for Carrier after Dialing: S7 sets the

time the modem waits for a valid carrier after dialing.

Range: 1 to 255 Units Seconds Default 50

S8 Comma Pause Time: S8 defines the length of

the pause caused by a comma in the dial string.

Range: 1 to 255 Units Seconds Default 50

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 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 es-

cape 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

XE3386 S-Registers

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XECOM (11) XE3386

XE3386 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-T est Disabled

1 = Remote DLB w Self-T est Enabled Bit 6

0 = Local ALB w Self-Test Disabled

1 = Local ALB w Self-T est 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)

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)

= 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.

Bit013

0 0 0 = Normal Mode (AT&Q0) 101

= Error control enabled (AT&Q5)

011

= Direct Mode (AT&Q6) Bit 2, 4, 5, 7 Not Used Bit 6 0 = CCITT Protocols (ATB0)

1 = Bell Protocols (ATB1)

Page 12

XECOM (12) XE3386

XE3386 S-Registers (continued)

S28 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

S29 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)

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

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 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

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XECOM (13) XE3386

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

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

Page 14

XECOM (14) XE3386

XE3386 Result Codes

Digits Verbose Description

0 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 No 5 seconds of silence

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

115,200 bps Connection

20 CONNECT 230400

230,400 bps Connection

22 CONNECT 75TX/1200RX

V.23 originate connection 23 CONNECT 1200TX/75RX

V.23 answer connection 33 FAX Fax connection 35 DATA Data connection from

Fax mode 40 CARRIER 300 300 bps carrier received 44 CARRIER 1200/75 V.23 reverse channel

carrier received 45 CARRIER 75/1200 V.23 forward channel

carrier received

Digits Verbose Description

46 CARRIER 1200

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

CARRIER 16800

16,800 bps carrier received

CARRIER 19200

19,200 bps carrier received

CARRIER 21600

21,600 bps carrier received

CARRIER 24000

24,000 bps carrier received

CARRIER 26400

26,400 bps carrier received

CARRIER 28800

28,800 bps carrier received

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 28,800 28,800 bps Connection 66 COMPRESSION: CLASS 5

MNP5 data compression

67 COMPRESSION: V.42bis

.42bis data compression

69 COMPRESSION: NONE

No data compression 70 PROTOCOL: NONE No error correction 77 PROTOCOL: LAPM LAPM error correction 78 CONNECT 31200 33,600 bps Connection 79 CONNECT 33600 2400 bps Connection 80 PROTOCOL: ALT MNP error correction 81

PROTOCOL: ALT CELLULAR

MNP10 error correction

+F4 +FCERROR Fax carrier error

Page 15

XECOM (15) XE3386

XE3386 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+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

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)

A T+FTS<time> - Transmit Silence AT+FTTn - Transmit Test Data

Page 16

XECOM (16) XE3386

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 T elephone 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.

XE3386 FCC Instructions

Page 17

XECOM (17) XE3386

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.

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]

Terms of Sale

Life Support Policy