Cermetek DataSheet for product XE5620SM

Preliminary

XE5620SM

February 2003

Compact Global Modem Board

Description

Features

Xecom’s XE5620SM is a complete modem on a compact

* Small Size: 2.175” by 1.00” by 0.3”

PCB (daughter board). Xecom includes transferable

* Data transfer at rates from 300 bps to 56 kbps using

FCC Part 68 Registration to the user of the XE5620SM.

V.90, V.34bis, V.34, V.32bis, V.32, V.22bis, V.22, V.23, V.21,

This allows the embedded system designer to easily add

Bell 212A, and Bell 103 Protocols

modem communications to his process control, remote

* Modem Control and Configuration via industry

monitoring, point-of-sale, or remote diagnostic system

standard AT Commands.

without additional FCC testing.

* Supports V.42 error correction and V.42bis data

compression.

Xecom’s XE5620SM has a twenty percent smaller

footprint than other modem daughter board products.

* Nonvolatile memory stores modem configuration and

permits stored number dialing.

This reduced footprint saves board space and allows

the design engineer greater flexibility in placement of the

* Incorporates Fax send and receive capabilities

controlled by Class 1 Fax commands.

modem within the host system.

* Complete integrated DAA.

A variation of the XE5620SM, the XE5620SM-F,

* User Transferrable FCC Part 68 Registration

incorporates Flash memory onto the daughter board.

* Complies with telephone networks around the world.

The presence of Flash memory allows future updating of

the modem code when features are added.

* UL60950 Recognition

* Low Power operation, 3.3 Volts, 300 milliwatts;

XE5620SM/XE5620SM-F BLOCK DIAGRAM

NVRAM

Reset

/TXD

ROM or Flash

/RXD

(XE5620SM-F)

/RTS

Modem

Global

/DSR

Controller

Analog

Telephone

Tip

/DCD

Front

Line

Ring

/CTS

End

Interface

/DTR

(DAA)

/RI

SPKR

XECOM

(1)

XE5620SM

XE5620SM Mechanical Specifications

(Top View)

Inches

Millimeters

Dimension

Min

Typ

Max

Min

Typ

Max

2.170

2.175

2.180

55.12

55.24

55.37

0.995

1.000

1.005

25.27

25.40

25.53

0.890

0.900

0.910

22.61

22.86

23.11

0.110

0.120

0.130

2.79

3.05

3.30

0.090

0.100

0.110

2.29

2.54

2.79

0.240

0.250

0.260

6.10

6.35

6.60

0.059

0.062

0.065

1.50

1.57

1.65

0.790

0.800

0.810

20.07

20.32

20.83

0.090

0.100

0.110

2.29

2.54

2.79

0.137

0.1375

0.138

3.48

3.49

3.51

1.230

1.240

1.250

31.24

31.50

31.75

1.490

1.500

1.510

37.85

38.10

38.35

0.290

0.300

0.310

7.37

7.62

7.87

Note: All pins are .025” square

XECOM

(2)

XE5620SM

XE5620SM Pin Configuration

Top View

Tip

Ring

VCC

/DCD

/CTS

/DSR

/RTS

EXM

/RXD

/Reset

/TXD

SPKR

/DTR

Gnd

/RI

Pin Descriptions

PIN NAME

DESCRIPTION

Tip

The Ring and Tip signals connect the modem to the telephone line. FCC Part 68 Rules require a

1500 volt isolation barrier between the telephone line and all other circuits. This isolation must

be preserved throughout the system.

The telephone company places a DC “Battery” voltage across Tip and Ring on public switched

telephone lines. The XE5620SM operates regardless of the polarity of this “Battery” voltage.

The “Battery” voltage drives up to 100 milliampere of DC loop current.

UL60950 requires minimum creepage and clearances distances between the Tip and Ring traces

and all other circuits. Clearance is the shortest distance between conductive circuits; creepage

is the distance between conductive points along the surface

Ring

The Ring and Tip signals connect the modem to the telephone line. FCC Part 68 Rules require a

1500 volt isolation barrier between the telephone line and all other circuits. This isolation must

be preserved throughout the system.

The telephone company places a DC “Battery” voltage across Tip and Ring on public switched

telephone lines. The XE5620SM operates regardless of the polarity of this “Battery” voltage.

The “Battery” voltage drives up to 100 milliampere of DC loop current.

XECOM

(3)

XE5620SM

XE5620SM Pin Descriptions (continued)

NAME

DESCRIPTION

UL60950 requires minimum creepage and clearances distances between the Tip and Ring traces

and all other circuits. Clearance is the shortest distance between conductive circuits; creepage

is the distance between conductive points along the surface.

EXM

EXM will be high when Flash memory is used, XE5620SM-F. Do not attach any signal to this pin.

RESET

RESET is an active low input which initiates a modem hardware reset. RESET must be active for

a minimum of 100 milliseconds for a proper modem reset sequence. No external reset is required;

if none is used the RESET signal should be left open.

SPKR

SPKR allows connection of a speaker to monitor modem operations. SPKR cannot directly drive

a speaker; an amplifier with a minimum input impedance of 300 ohms is required. The signal on

SPKR is controlled by the ATL and ATM commands.

Ground

Ground provides the reference voltage for all host interface signals.

/RI

The /RI signal reports on the presence of an incoming ring signal. When a ring occurs across

Tip and Ring, the /RI output goes low and toggles with the cadence of the ring signal..

/DTR

/DTR is an active low input to the modem. An active /DTR signals the terminal is available for

communications. The AT&D command determines how the modem interprets activity on /DTR.

/TXD

/TXD provides the path for transmitted data and modem commands to be passed from the host

controller to the modem.

/RXD

/RXD provides the path for received data and modem responses to be sent from the modem to

the host controller.

/RTS

/RTS is an active low input to the modem. When hardware flow control is set, ab active /RTS

indicates to the modem that the host has data to send.

/DSR

/DSR is an active low output from the modem. An active /DSR indicates the modem link is

established. The AT&S command controls when the XE5620SM asserts /DSR.

/CTS

/CTS is an active low output from the modem. When hardware flow control is set, the modem

asserts /CTS to indicate that it can accept data from the terminal equipment on /TXD.

/DCD

/DCD is an active low output from the modem. An active /DCD indicates the presence of a valid

carrier signal. The AT&C command controls when the XE5620SM asserts /DCD.

VCC

VCC provides 3.3 volt power to the modem.

XECOM

(4)

XE5620SM

XE5620SM Electrical Specifications

Parameter

Min

Typ

Max

Units

Comments

VCC

3.13

3.3

3.47

Volts

ICC

100

On Line

ICC

On-Hook

Ring Voltage Detected

150

VRMS

Type B Ringer

Ring Frequency Detected

15.3

Type B Ringer

Telephone Loop Current

100

Line Impedance

600

Ohms

Data Transmit level

-12.0

-9.0

dBm

DTMF Transmit Level

-2.5

dBm

Avg over 3 second interval

Voh

2.4

Volts

Vol

0.4

Volts

Vih

2.0

VCC+0.3

Volts

Vil

-0.3

0.8

Volts

XE5620SM ABSOLUTE MAXIMUM RATINGS

Storage Temperature

-25 O C to +85 O C

1 Maximum Operating Temperature Range

0 O C to +70 O C

Maximum Time Above Eutectic (183 O C)

90 seconds

Preheat Dwell Time

120 to 180 seconds

1 The XE5620SM can be ordered with an Operating Temperature of -40 O C to +85 O C at extra cost. Order

XE5620SM-ITR or to specify Industrial Temperature Range (ITR).

XECOM

(5)

XE5620SM

XE5620SM Typical Connection Diagram

XE5620SM

RJ11

VCC

FB1

TIP (1)

Ring (2)

FB2

VCC (15)

/DCD (14)

/CTS (13)

VCC

/DSR (12)

/RTS (11)

To Host Serial Port

/RXD (10)

EXM (3)

/TXD (9)

/RESET (4)

/DTR (8)

SPKR (5)

/RI (7)

Gnd (6)

LS1

Parts List for XE5620SM Typical Connection Diagram

Reference

Designation

Qty

Description

Designation

Qty

Description

C1, C2

Cap. 470 pfd 2600V

National Semi LM386

C3, C4

Cap. 0.1 ufd 20% 16V

LS1

Speaker, 8 Ohms

Cap. 100 ufd 20% 10V

Potentiometer, 10K

FB1, FB2

Ferrite, TDK ACB2012L-120

Resistor, 10 Ohms 20 %

F1, F2

PTC, TR600-150

Notes:

FB1 and FB2 are ferrite beads which may be required for EMI filtering in your system. Without these

components you may experience unintended radiation when the telephone cable is attached. We recommend

selecting components such as the TDK ACB2012L-120 which provide a minimum of 100 ohms of impedance

at frequencies above 100 MHz.

2. C1 and C2 are high-voltage capacitors which may be required for EMI filtering in your system. Without these

components you may experience unintended radiation when the telephone cable is attached to your system. We

recommend selecting components such as the Panasonic ECKDRS471. This 470 pfd, 3000 volt capacitor will

direct the high frequency harmonics to the system ground. These capacitors must be rated at a minimum of 1500

volts to maintain the isolation required by FCC Part 68 Rules.

3. F1 and F2 are positive thermal coefficient (PTC) devices which protect the modem form excessive current

flow. These devices are required for your system to pass UL60950. Fuses may be used in place of the PTC’s

XECOM

(6)

XE5620SM

Country Selection

Xecom has designed the XE5620SM to function in a wide variety of countries throughout the world.

Below is a list of the available country configurations. Please contact Xecom if you have questions

regarding a country not on this list.

Countries Supported:

COUNTRY

AT COMMAND

COUNTRY

AT COMMAND

Australia

AT*NC40

Lichtenstein

AT*NC29

Austria

AT*NC1

Luxembourg

AT*NC9

Belgium

AT*NC2

Namibia

AT*NC26

Czech Republic

AT*NC19

Norway

AT*NC11

Denmark

AT*NC3

Poland

AT*NC24

Finland

AT*NC4

Portugal

AT*NC12

France

AT*NC5

Russia

AT*NC25

Germany

AT*NC6

South Africa

AT*NC27

Greece

AT*NC17

Spain

AT*NC13

Holland

AT*NC10

Sweden

AT*NC14

Iceland

AT*NC28

Switzerland

AT*NC15

India

AT*NC18

Taiwan

AT*NC20

Ireland

AT*NC7

United Kingdom

AT*NC16

Italy

AT*NC8

United States

AT*NC22

Japan

AT*NC43

NOTE: Country regulations permit Xecom to offer transferrable registration only in the United

States, FCC Part 68 only. All other required certifications of systems using the XE5620SM are the

responsibility of Xecom’s customer. Xecom will assist our customers with any of these certifications.

XECOM

(7)

XE5620SM

XE5620SM AT Commands

The XE5620SM uses "AT" commands for configuration

Command Line - Commands may be strung together in a

and control. This section describes the AT command

single command line of up to 36 characters. Commands

format and lists the AT commands, Registers and Result

are executed in the sequence they appear. Spaces may be

codes. XE5620SM "AT" commands have two operational

inserted into the command line but do not fill space in the

modes; Command Mode, Data Mode and FAX mode.

command buffer. A carriage return terminates the com-

mand line and causes the commands to be executed.

Data Mode: The XE5620SM enters data mode after it

connects to a remote modem and issues the appropriate

a carriage return to terminate the command line.

result code. In the Data Mode the modem sends all data

presented on Transmit Data (/TXD) to the remote

Command Buffer -

The Command Buffer holds a

modem and puts data from the remote modem onto

maximum of 36 characters, including the AT prefix.

Received Data (/RXD). When the modem exits data

the command buffer overflows, the modem issues an

mode, it issues a "NO CARRIER" result code.

"ERROR" result code and commands are not executed.

Command Mode: The XE5620SM enters command mode

Command Line Editing -

The backspace edits a

on power-up, reset, a lost connection, or receipt of the

command line before it is executed. The backspace key,

escape code.

In command mode the modem accepts

(Control and H simultaneously on some systems), erases

commands from the host on transmit data. Appropriate

the previous character in the command line. Register S5

result codes are returned on received data.

allows the user to select a character other than a back-

space to edit the command line.

Fax Mode: The XE5620SM enters Class 1 fax mode on

receipt of AT+FCLASS=1. In fax mode commands and

Re-Execute Last Command - The A/ command causes

responses are issued at 19,200 bits per second; the

the modem to re-execute the last command line. This is

character format is 8 bits no parity. The modem accepts

the only command which does not require the "AT"

fax commands only in fax mode. The A/, ATO, AT&T and

prefix.

escape commands are not valid in fax mode.

Omitted Parameters - Most commands include a pa-

Command Line Format

rameter which determines how the functions will be set.

Command lines issued to the modem follow a strict

When the command parameter is omitted from the

format. Each command begins with the prefix AT. The

command string, it is assumed to be a 0.

command buffer stores the command line and executes

it upon receipt of a carriage return. Until executed, the

Escape Characters - A 3 character escape sequence

command line can be edited with the backspace key.

may be entered to switch the modem into command

mode while on line.

The escape character, set by

Command Prefix - Each command, except

the A/

command, begins with the AT prefix. The "A" and "T"

execute the escape. An AT command must then be

may be both upper case or both lower case but cannot be

entered within the period defined by S12 to enter

of different cases. The prefix identifies the speed and

command mode. The default escape sequence is "+++."

parity of the commands sent to the modem. The modem

determines data rate by measuring the width of the

Result Codes - The modem issues a result code after

incoming bits. Parity is determined by comparing the

each action. Result codes may be sent as full words,

parity bits of the "A" and the "T."

one or two digit numeric codes, or may be disabled all

together. Each result code ends with a carriage return

when numeric result codes are chosen. When full word

result codes are chosen, a Line Feed and Carriage

Return precede and follow each result code.

XECOM

(8)

XE5620SM

XE5620SM AT Commands

An asterisk indicates the factory default

Qn - Responses

A - Answer Command -

n=0

Send responses *

n=1

No Responses

Bn - Select Communications Standard

n=0

Selects CCITT standards *

Sr? - Interrogate Register -

n=1

Selects Bell standards

Sr=n - Set Register Value -

D - Dial Command -

Vn - Result Codes -

0-9, A-D, #, * = Dialing Digits

P = Pulse dial

n=0

Numeric Result Codes

T = Tone dial

n=1

English Word Result Codes*

W = Wait for dial tone

Wn - CONNECT Result Code -

= Pause for the duration of S8

n=0

Display CONNECT DCE Speed

@ =

Wait for silence

n=1

Display CONNECT DTE Speed

! =

Switch hook flash

n=2

Display CONNECT DCE Speed plus error control

; =

Return to the command state

extension *

^ =

Enable Calling Tone

n=3

Display CONNECT DTE Speed plus error control

S=n = Dial Stored Number n

extension

En - Command Echo

Xn - Result Code Set -

n=0

Do not echo commands

n=0

Responses 0-4

n=1

Enable command echo*

n=1

Responses 0-5 & 10

Hn - Switch Hook Control -

n=2

Responses 0-6 & 10

n=0

Switch hook relay opens

n=3

Responses 0-5, 7 & 10

n=1

Switch hook relay closes

n=4

Responses 0-7 & 10*

In - Modem Identification

Zn - Reset -

n=0

Reset and Recall Profile 0 *

Ln - Speaker Volume -

n=1

Reset and Recall Profile 1

n=0

Speaker volume low

&Cn - DCD Operation

n=1

Speaker volume low

n=2

Speaker volume medium *

n=0

DCD is forced active

n=3

Speaker volume high.

n=1

DCD indicates a valid carrier signal *

Mn - Speaker Activity -

&Dn - DTR

n=0

Speaker off

n=0

DTR is ignored

n=1

Speaker on until carrier received*

n=1

When the modem is on-line DTR off switches it to

n=2

Speaker remains on

the command mode and issues OK response.

n=3

Speaker on after dialing until DCD detected.

n=2

Modem disconnects if the host revokes DTR.*

n=3

The modem performs a soft reset when DTR is

Nn - Modulation Selection

revoked.

n=0

Communication Rate set by AT*I Command

&F - Reset Factory Defaults

n=1

Automatic Negotiation of Data Rate beginning at

AT*I Setting. *

&Gn - Guard Timer -

On - On Line

n=0

None *

n=0

Return On Line with no retrain*

n=1

550 Hz Guard Timer

n=1

Initiate retrain while returning On line.

n=2

1800 Hz Guard Timer

n=2

Initiate rate renegotiation while returning On line.

XECOM

(9)

XE5620SM

XE5620SM AT Commands

&Kn - Flow Control

\Nn - Error Control Mode

n=3 RTS/CTS Flow Control *

n=0 Normal Mode

n=4 XON/XOFF Flow Control

n=1 Direct Mode

&Pn - Pulse Dial Make/Break Ratio

n=2 MNP Required

n=3 MNP or Normal

n=0 39%/61% 10 PPS *

n=4 Auto Error Correction V.42 without ODP or ADP

n=1 33%/67% 10 PPS

Phase Detection, MNP or Normal mode

n=2 39%/61% 20 PPS

n=5 Auto Reliable Mode *

n=3 33%/67% 20 PPS

n=6 V.42 without ODP or ADP Phase Detection required

&Rn - Clear to Send

n=7 V.42 with ODP or ADP Phase Detection required

n=0 Clear to Send follows Request to Send

\Vn - Protocol Result Code

n=1 Clear to Send Active *

n=0 No Protocol Result code added to Response *

&Sn - Data SetReady

n=1 Protocol Result code added to Response

n=0 Data Set Ready Forced Active *

*Hn - Automatic Retrain

n=1 Data Set Ready on at Start of Modem handshake

n=0 Automatic Retrain Disabled

&Un - Protocol Selection

n=1 Automatically retrain on poor signal quality

n=0 V.90 *

*In - Select Maximum Connection Speed

n=1 V.34Bis/V.34

n=0 1200 bps,

n=2 V.32bis/V.22bis

n=1 2400 bps,

28,000 with AT&U=0

n=3 Bell 103

n=2 4800 bps,

29,333 with AT&U=0

n=4 V.21

n=3 7200 bps,

30,666 with AT&U=0

n=5 V.23

n=4 9600 bps,

32,000 with AT&U=0

n=5 12,000 bps,

33,333 with AT&U=0

&V - View Active Configuration

n=6 14,400 bps,

34,666 with AT&U=0

&Wn - Store Current Configuration

n=7 16,800 bps,

36,000 with AT&U=0

n=8 19,200 bps,

37,333 with AT&U=0

n=0 Store Active Configuration in Profile 0 *

n=9 21,600 bps,

38,666 with AT&U=0

n=1 Store Active Configuration in Profile 1

n=10 24,000 bps,

40,000 with AT&U=0

&Yn - Select Configuration to Recall

n=11 26,400 bps,

41,333 with AT&U=0

n=12 28,800 bps,

42,666 with AT&U=0

n=0 Recall Configuration Profile 0 *

n=13 31,200 bps,

44,000 with AT&U=0

n=1 Recall Configuration Profile 1

n=14 33,600 bps *,

45,333 with AT&U=0

n=15 46,666 bps with AT&U=0

&Zn=x - Store dialing string x

n=16 48,000 bps with AT&U=0

%Cn - Data Compression Control

n=17 49,333 bps with AT&U=0

n=18 50,666 bps with AT&U=0

n=0 No Data Compression

n=19 52,000 bps with AT&U=0

n=1 Data Compression Enabled *

n=20 53,333 bps with AT&U=0

n=21 54,666 bps with AT&U=0

n=22 56,000 bps with AT&U=0 *

XECOM

(10)

XE5620SM

XE5620SM AT Commands

*NCn - Country Configuration

*On - Transmit Level Selection (Note: This feature is

n=1 Austria

not available in all country configurations.)

n=2 Belgium

n=0 -11 dBm (default)

n=3 Denmark

n=1 -12 dBm

n=4 Finland

n=2 -13 dBm

n=5 France

n=3 -14 dBm

n=6 Germany

n=4 -15 dBm

n=7 Ireland

n=5 -16 dBm

n=8 Italy

n=6 -17 dBm

n=9 Luxembourg

n=7 -18 dBm

n=10 Holland

n=8 -19 dBm

n=11 Norway

n=9 -20 dBm

n=12 Portugal

n=10 -21 dBm

n=13 Spain

n=11 -22 dBm

n=14 Sweden

n=12 -23 dBm

n=15 Switzerland

n=13 -24 dBm

n=16 UnitedKingdom

n=14 -25 dBm

n=17 Greece

n=15 -26 dBm

n=18 India

n=19 Czech Republic

n=20 Taiwan

n=21 reserved

n=22 United States

n=23 reserved

n=24 Poland

n=25 Russia

n=26 Namibia

n=27 South Africa

n=28 Iceland

n=29 Liechtenstein

n=30 reserved

n=31 reserved

n=32 reserved

n=33 reserved

n=34 reserved

n=35 reserved

n=36 reserved

n=37 reserved

n=38 reserved

n=39 reserved

n=40 Australia

XECOM

(11)

XE5620SM

XE5620SM AT Class 1 FAX Commands

AT+FCLASS? - Service Class Indication

AT+FRM<mod> - Receive Fax

0 = Configured as a data modem

1 = Configured for Service Class 1.

(see AT+FRH for "mod" values)

AT+FCLASS=? - Service Class Capability

AT+FRS<time> - Receive Silence

0 = Configured as a data modem

AT+FRTn - Receive Test Data

1 = Configured for Service Class 1.

AT+FTH<mod> - Transmit HDLC Data

AT+FCLASS=n - Set Service Class

(see AT+FRH for "mod" values)

0 = Configured as a data modem

1 = Configured for Service Class 1.

AT+FTM<mod> - Transmit Fax

(see AT+FRH for "mod" values)

AT+FAE=n - Data/Fax Auto Answer

0 = Answer as a fax modem only

AT+FTS<time> - Transmit Silence

1 = Either a fax or data modem

AT+FTTn - Transmit Test Data

AT+FLO - Flow Control

0 = Flow Control Off

1 = XON/XOFF Flow Control Selected

2 = RTS/CTS Flow Control Selected *

AT+FRH<mod> - Receive HDLC Data

V.21 Channel 2, 300 bps

V.27ter, 2400 bps

V.27ter, 4800 bps

V.29, 7200 bps

V.29, 9600 bps

V.17, 9600 bps

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

(12)

XE5620SM

XE5620SM Modem Registers

Answer on nth Ring: S0 sets the modem to

Wait for Carrier after Dialing: S7 determines how long

automatically answer on the nth ring. Setting S0 to 0

the modem waits for a valid carrier signal after dialing.

disables automatic answer.

Range:

1 to 255

Range:

0 to 255

Units

Seconds

Units

Rings

Default

Comma Pause Time: S8 defines the duration of the

Ring Count: S1 is a read-only register showing the

pause initiated by a comma in the dialing string. The pause

number of rings detected. If a ring is not detected

is generally used when waiting for a second dial tone.

within 8 seconds, S1 is reset to zero.

Range:

1 to 255

Range:

0 to 255

Units

Seconds

Units

Rings

Default

Carrier Detect Response Time: S9 establishes the

Escape Character: S2 determines the ASCII escape

length of time the remote modem's carrier must be present

character. Values of 0-127 select valid characters;

to be recognized as valid.

values from 128 to 255 disable the escape sequence.

Range:

1 to 255

Range:

0 to 255

Units

0.1 Seconds

Units

ASCII Character

Default

43 (+)

S10

Carrier Off Disconnect Delay : S10 selects how long

Line Termination Character: S3 determines the

carrier must be lost before the modem disconnects. Note:

ASCII character which will terminate commands and

If S10 is smaller than the value of S9 or S10 is set to 255,

modem responses.

the modem will not automatically disconnect on loss of

Range:

0 to 127

carrier.

Units

ASCII Character

Range:

1 to 255

Default

13 (Carriage Return)

Units

0.1 Seconds

Default

Line Feed Character: S4 sets the ASCII character

to act as a line feed character in modem responses.

S11

Tone Dialing Speed: S11 sets the duration and spacing

Range:

0 to 127

of the dialing tones. S11 does not affect the pulse dialing.

Units

ASCII Character

Range:

50 to 255

Default

10 (Line Feed)

Units

1Millisecond

Default

Backspace Character: S5 defines the ASCII

character used as a backspace to edit the command

S12

Escape Code Guard Timer: S12 sets the escape

line.

sequence guard timer. If characters are received before or

Range:

0 to 127

after the escape sequence, within the guard timer, the

Units

ASCII Character

modem aborts the escape attempt and remains in data

Default

8 (Back Space)

mode.

Range:

0 to 255

Dial Tone Wait Time: S6 determines how long the

Units

0.02 Seconds

modem waits for dial tone before dialing. The Dial

Default

Tone Wait Time cannot be set to less than two seconds.

S13

Pulse Dialing : S13 permits pulse dialing to be disabled

Range:

3 to 7

Function

Units

Seconds

No Pulse Dialing

Default

Pulse Dialing Allowed

XECOM

(13)

XE5620SM

XE5620SM Modem Registers (continued)

S14

Bit-mapped Register: S14 stores the values of

S95

Bit-mapped Register: S95 stores the modem’s result

Several AT Commands.

code and modulation information.

Bit

Function

Bit

Function

Echo (ATE0)

0, 1, 2 Result Code Selection

Reserved

Modulation Selection

Result Codes (ATQ0)

4-7

Reserved

Numeric Responses (ATV0)

4,5

Pulse Dialing Parameters (AT&P0)

S97

Bit-mapped Register: S97 stores the modem’s error

control and data compression information.

S21

Bit-mapped Register: S21 stores the values of

Bit

Function

Several AT Commands.

0-2

Error Correction Selection

Bit

Function

3-6

Reserved

0-2

Reserved

Data Compression Selection

3,4

DTR Condition (AT&D)

DCD Function (AT&C)

S98

Bit-mapped Register: S98 stores the automatic retrain

DSR Function (AT&S)

and Flow control status.

Reserved

Bit

Function

0, 1

Error Correction Selection

S22

Bit-mapped Register: S22 stores the values of

2, 3

Reserved

Several AT Commands.

4-6

Flow Control Selection

Bit

Function

Reserved

0-3

Speaker Control (ATL/ATM)

4,5,6

Response Set (ATX)

Reserved

S23

Bit-mapped Register: S23 stores the modem’s active

data format.

Bit

Function

0, 1,2,3 DTE Rate 0-300 BPS

4,5

Parity

6,7

Reserved

S30

Inactivity Timer: S30 determines how long the mo-

dem will remain on line with not data flowing. A 0 in

this register disables the inactivity time out.

Range:

0-255

Units

Minutes

Default

XECOM

(14)

XE5620SM

XE5620SM Modem Responses

Digits

Verbose

Description

Digits

Verbose

Description

Command Successful

CONNECT 26400

26,400 bps Connection

CONNECT

300 bps connection

CONNECT 28800

28,800 bps Connection

RING

Ring signal detected

CONNECT 31200

31,200 bps Connection

NO CARRIER

Carrier not detected

CONNECT 33600

33,600 bps Connection

ERROr

Error in command line

CONNECT 28000

V.90 28,000 bps Connection

CONNECT 1200

1200BPS Connection

CONNECT 29333

V.90 29,333 bps Connection

NO DIAL TONE

No dial tone detected

CONNECT 30666

V.90 30,666 bps Connection

BUSY

Busy signal detected

CONNECT 32000

V.90 32,000 bps Connection

NO ANSWER

No 5 sec. silence detected

CONNECT 33333

V.90 33,333 bps Connection

CONNECT 300

300 bps Connection

CONNECT 34666

V.90 34,666 bps Connection

CONNECT 2400

2400 bps Connection

CONNECT 36000

V.90 36,000 bps Connection

CONNECT 4800

4800 bps Connection

CONNECT 37333

V.90 37,333 bps Connection

CONNECT 9600

9600 bps Connection

CONNECT 38666

V.90 38,666 bps Connection

CONNECT 7200

7200 bps Connection

CONNECT 40000

V.90 40,000 bps Connection

CONNECT 12000

12,000 bps Connection

CONNECT 41333

V.90 41,333 bps Connection

CONNECT 16800

16,800 bps Connection

CONNECT 42666

V.90 42,666 bps Connection

CONNECT 19200

19,200 bps Connection

CONNECT 44000

V.90 44,000 bps Connection

CONNECT 21600

21,600 bps Connection

CONNECT 45333

V.90 45,333 bps Connection

CONNECT 14400

14,400 bps Connection

CONNECT 46666

V.90 46,666 bps Connection

CONNECT 24000

24,000 bps Connection

CONNECT 48000

V.90 48,000 bps Connection

CONNECT 38400

38,400 bps Connection

CONNECT 49333

V.90 49,333 bps Connection

CONNECT 57600

57,600 BPS Connection

CONNECT 50666

V.90 50,666 bps Connection

CONNECT 115200

115,200 BPS Connection

CONNECT 52000

V.90 52,000 bps Connection

25CONNECT1200TX/75RX V.23 Connection 1200 bps

CONNECT 53333

V.90 53,333 bps Connection

Transmit 75 bps Receive

CONNECT 54666

V.90 54,666 bps Connection

26CONNECT75TX/1200RX V.23 Connection 75 bps

CONNECT 56000

V.90 56,000 bps Connection

Transmit 1200 bps Receive

28 CONNECT BELL 300

Bell 300 bps Connection

CONNECT V21

V21 300 bps Connection

XECOM

(15)

XE5620SM

FCC Instructions

The XE5620SM complies with part 68 of the FCC Rules and Regulations. With each device shipped, there is a label which con-

tains, among other information, the FCC Registration Number and Ringer Equivalence Number (REN) for this product. You

must, upon request, provide this information to your telephone company.

The mounting of this device in the final assembly must be made in such a manner as to preserve the high voltage protection be-

tween the TIP/RING Connection and the rest of the system. Typically, this may be accomplished by maintaining a minimum

spacing 100 mils between the TIP/RING Traces to the RJ-11C Jack and low voltage portion of the system. No additional cir-

cuitry 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 you calling area.

If your system causes harm to the telephone network, the telephone company may discontinue service temporarily. If possible,

they will notify you in advance. If advance notification is not practical, you will be notified as soon as possible.

Your telephone company may make changes in its facilities, equipment, operations or procedures that could affect proper func-

tioning of your equipment. If they do, you will be notified in advance to give you an opportunity to maintain uninterrupted tele-

phone service.

If you experience trouble with this device, please contact XECOM at (408) 945-6640 for information on obtaining service or

repairs. The telephone company may ask you to disconnect this device from the network until the problem has been corrected

or until you are sure that the device is not malfunctioning.

The device may not be used on coin service lines provided by the telephone company (this does not apply to private coin tele-

phone applications which use standard telephone lines). Connection to party lines is subject to state tariffs.

XECOM

(16)

XE5620SM

Terms of Sale

Devices sold by XECOM are covered by the warranty provisions appearing in its Terms of Sale only. XECOM makes no war-

ranty, express, statutory, implied, or by description regarding the information set forth herein, or regarding the freedom of the

described devices from patent infringement. XECOM makes no warranty of merchantability or fitness for any purposes.

XECOM reserves the right to discontinue production and change specifications and prices at any time and without notice. This

product is intended for use in normal commercial applications. Applications requiring extended temperature range, unusual en-

vironmental requirements, or high reliability applications, such as military, medical life-support or life-sustaining equipment, are

specifically not recommended without additional processing and authorization by XECOM for such application.

Xecom assumes no responsibility for the use of any circuitry other than circuitry embodied in a Xecom product. No other cir-

cuits, patents, or licenses are implied.

Life Support Policy

Xecom's products are not authorized for use as Critical Components in Life Support Devices or Systems.

Life Support Devices or Systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) sup-

port or sustain life, and whose failure to perform, when properly used in accordance with instructions provided in the labeling,

can be reasonably expected to result in significant injury to the user.

A Critical Component is any component of a life support device or system whose failure to perform can be reasonably ex-

pected to cause failure of the life support device or system, or to affect its safety or effectiveness.

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:408-942-2000

Fax:408-942-1346

E-Mail: Info@Cermetek.com

XECOM

(17)

XE5620SM