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PCA28EM (USA)

PHILIPS CONSUMER ELECTRONICS, CO.

PCA28EM (USA)

Card Type

Modem

Chip Set

Unidentified

I/O Options

Line out, line in, 25-pin DTE port, power

Maximum Modem Rate

115.2Kbps

Maximum Fax Rate

14.4Kbps

Data Modulation Protocol

Bell 103/212A

ITU-T V.22, V.22bis, V.32, V.32bis, V.34, V.FC

Fax Modulation Protocol

ITU-T V.17, V.27ter, V.29

Error Correction/Compression

MNP5, V.42, V.42bis

Fax Class

Class I & II

Data Bus

External

CONNECTIONS

Function

Label

Function

Label

Line out (RJ-11)

CN1

Power

CN4

Line in (RJ-11)

CN2

Power switch

SW1

25-pin DTE port

CN3

   

 

DIAGNOSTIC LED(S)

LED

Color

Status

Condition

MR

Unidentified

On

Power is on

MR

Unidentified

Off

Power is off

TR

Unidentified

On

DTR signal is high

TR

Unidentified

Off

DTR signal is low

SD

Unidentified

On

Modem is transmitting data

SD

Unidentified

Off

Modem is not transmitting data

RD

Unidentified

On

Modem is receiving data

RD

Unidentified

Off

Modem is not receiving data

OH

Unidentified

On

Modem is off hook

OH

Unidentified

Off

Modem is on hook

CD

Unidentified

On

Carrier signal detected or error correction negotiation completed

CD

Unidentified

Off

Carrier signal not detected

AA

Unidentified

On

Auto-answer enabled

AA

Unidentified

Off

Auto-answer disabled

AA

Unidentified

Blinking

Incoming ring detected

HS

Unidentified

On

Mdem is connected at 28.8Kbps

HS

Unidentified

Off

Modem is not connected or connected at speed lower than 28.8Kbps

TST

Unidentified

On

Normal operation; no error detected

TST

Unidentified

Off

Error detected and corrected

SUPPORTED COMMAND SET

Basic AT Commands

AT, Ď+++í, A/

A, E, H, M, P, T, V, X, Y, Z

&C, &G, &M, &R, &T, &V, &W, &X, &Z

Extended AT Commands

%A, %C

\A, \B, \C, \E, \G, \J, \K, \O, \Q, \T, \U, \X, \Y, \Z

S Registers

S0, S1, S2, S3, S4, S5, S6, S7, S8, S9,S10, S11, S12, S14, S18, S25, S26

 

Note: See MHI Help File for full command documentation.

PROPRIETARY AT COMMAND SET

AUTO-FALLBACK/FALL-FORWARD

Type:

Configuration

Format:

AT [cmds] &En [cmds]

Description:

Controls fallback/fall-forward

Command

Function

í &E0

Auto-fallback/fall-forward disabled

&E1

Auto-fallback/fall-forward enabled

 

COMMUNICATION PROTOCOLS

Type:

Configuration

Format:

AT [cmds] Bn [cmds]

Description:

Selects the communication protocol for data calls

Command

Speed(s)

Mode(s)

B0

300bps

1200bps

2400bps

4800bps, 9600bps

14.4kbps

19.2Kbps,28.8Kbps,38.4Kbps,

57.6kbps, 115Kbps

V.21

V.22

V.22bis, V.22, Bell 212A

V.32, V.22bis, V.22, Bell 212A

V.32bis, V.32, V.22bis, V.22, Bell 212A

V.34,V.FC, V.32bis, V.32, V.22bis, V.22, Bell 212A

Ľ B1

300bps

1200bps

2400bps

4800bps, 9600bps

14.4kbps

19.2Kbps,28.8Kbps,38.4Kbps,

57.6kbps, 115Kbps

Bell 103

Bell 212A

V.22bis, V.22, Bell 212A

V.32, V.22bis, V.22, Bell 212A

V.32bis, V.32, V.22bis, V.22, Bell 212A

V.34,V.FC, V.32bis, V.32, V.22bis, V.22, Bell 212A

B2

Any speed

V.34,V.FC, V.32bis, V.32, V.22bis, V.22, Bell 212A

B3

Any speed

V.23

B4

Any speed

V.21 at 300bps

B5

Any speed

V.22 at 1200bps

B6

Any speed

V.22bis at 2400bps

B7

Any speed

V.32 at 4800bps

B8

Any speed

V.32 at 9600bps

B9

Any speed

V.32bis at 14.4kbps

B10

Any speed

V.34/V.FC at 16.8Kbps

B11

Any speed

V.34/V.FC at 19.6Kbps

B12

Any speed

V.34/V.FC at 21.6Kbps

B13

Any speed

V.34/V.FC at 24.0Kbps

B14

Any speed

V.34/V.FC at 26.4Kbps

B15

Any speed

V.34/V.FC at 28.8Kbps

DATA SET READY (DSR)

Type:

Configuration

Format:

AT [cmds] &Sn [cmds]

Description:

Selects DSR options

Command

Function

í &S0

DSR forced high

&S1

DSR high only while modem is handshaking or connected

DATA TERMINAL READY (DTR)

Type:

Configuration

Format:

AT [cmds] &Dn [cmds]

Description:

Selects modem response to DTR

Command

Function

&D0

DTR ignored

&D1

DTR toggle causes online command mode

í &D2

DTR toggle causes modem to go on-hook

&D3

Modem reset on DTR toggle

 

DIAL

Type:

Immediate

Format:

AT [cmds] D<#> [cmds]

Description:

Dials telephone number according to any modifiers included in the string

Note:

Any combination of modifiers can be used to produce the desired dial functions in sequence.

Command

Function

DP

Pulse dialing enabled

DR

Answer mode enabled; originate mode disabled following handshake initiation.

DS=n

Dial stored telephone number n

DT

Tone dialing enabled/Pulse dialing disabled

DW

Dialing resumed following dial tone detection

D@

Wait for Quite Answer function enabled. Modem waits until a "quiet answer," a ring-back signal followed by silence up to the time specified in S7, is received prior to executing the rest of the dial string.

FACTORY DEFAULT PROFILE

Type:

Configuration

Format:

AT [cmds] &F [cmds]

Description:

Sets values in active profile to values found in the default profile

Command

Function

í &F0

Recalls factory defaults with V.42bis error correction and hardware flow control enabled

&F1

Recalls factory defaults with software flow control enabled

&F2

Recalls factory defaults with V.42bis error correction and hardware flow control enabled

&F3

Recalls factory defaults with software flow control enabled. DTR ignored

&F4

Recalls factory defaults with V.42bis error correction and hardware flow control enabled. DTR ignored

&F5

Recalls factory defaults with V.42bis error correction and hardware flow control disabled

HELP SCREEN

Type:

Immediate

Format:

AT [cmds] &Hn [cmds]

Description:

Displays Help screens on all available commands

LINE TYPE

Type:

Configuration

Format:

AT [cmds] &Ln [cmds]

Description:

Selects line type

Command

Line Type

í &L0

Switched line (PSTN/Dial-up)

&L1

Leased line

&L2

Power-on leased line

 

ON-LINE

Type:

Immediate

Format:

AT [cmds] On [cmds]

Description:

Controls on-line command (data transmission) state options.

Note: The O command must be placed at the end of the command string.

Command

Function

O0

On-line command mode with no retraining enabled

O1

On-line command mode with retraining enabled

O2

On-line command mode with retraining and fall-forward enabled

O3

On-line command mode with retraining and fall-back enabled

PULSE DIALING RATIO

Type:

Configuration

Format:

AT [cmds] &Pn [cmds]

Description:

Selects pulse dial make/break ratio

Command

Function

í &P0

39/61ms at 10pps (North America)

&P1

33/67ms at 10pps (Europe)

REPORT INFORMATION

Type:

Immediate

Format:

AT [cmds] In [cmds]

Description:

Displays information requested

Command

Function

I0

Reports product ID code

I1

Reports ROM checksum

I2

Tests and reports ROM checksum

I3

Reports modemís V.42bis ID

I4

Reports modemís internal ID

RESULT CODES

Type:

Configuration

Format:

AT [cmds] Qn [cmds]

Description:

Enables modem to send result codes to the DTE

Command

Function

Q0

Result code sending enabled

Q1

Result code sending disabled

Q2

Result code sending enabled in originate mode

SPEAKER VOLUME

Type:

Configuration

Format:

AT [cmds] Ln [cmds]

Description:

Controls speaker volume

Command

Function

L0

Low volume setting

L1

Low volume setting

í L2

Medium volume setting

L3

Highest volume setting

 

 

EXTENDED AT COMMAND SET

AUTO-RETRAIN

Type:

Configuration

Format:

AT [cmds] %En [cmds]

Description:

Controls auto-retrain mode

Command

Function

%E0

Auto-retrain disabled

í %E1

Auto-retrain enabled

CLEAR-DOWN SIGNAL

Type:

Configuration

Format:

AT [cmds] %Dn [cmds]

Description:

Enables/disables clear down signal to expidate disconnection

Command

Function

%D0

Clear-down signal disabled

í %D1

Clear-down signal enabled

CONNECT MODE

Type:

Configuration

Format:

AT [cmds] \Nn [cmds]

Description:

Controls the type of connection the modem will operate in

Command

Function

\N0

Normal mode enabled

\N1

Direct mode enabled

\N2

MNP reliable mode enabled

\N3

Auto-reliable mode enabled

\N4

V.42 reliable mode enabled

\N5

V.42/MNP mode enabled

í \N6

V.42/MNP/Normal mode enabled

EXTENDED RESULT CODES

Type:

Configuration

Format:

AT [cmds] \Vn [cmds]

Description:

Selects extended result codes

Command

Function

\V0

DCE speed displayed; extended result codes disabled

í \V1

DCE speed displayed; extended result codes enabled

\V2

DTE speed displayed; extended result codes disabled

\V3

DTE speed displayed; extended result codes enabled

 

PASSWORD SELECTION

Type:

Immediate

Format:

AT [cmds] \P=n [cmds]

Unit:

ASCII

Description:

Stores passwords in modemís NVRAM. Password is a case sensitive 7 digit string. Modem is factory set with no password stored. \P=? displays password

POWER-ON AUTO CONNECT

Type:

Configuration

Format:

AT [cmds] %Pn [cmds]

Description:

Enables/disables power-on auto connect

Command

Function

%P0

Power-on auto connect disabled

í %P1

Power-on auto connect enabled

SECURITY CALLBACK

Type:

Configuration

Format:

AT [cmds] %Sn [cmds]

Description:

Controls password check and callback security features

Command

Function

í %S0

Password check and callback security features disabled

%S1

Password check and callback security features enabled

%S2

Password check enabled. Callback disabled

S(status) -REGISTERS

BIT-MAPPED REGISTER S14

Format:

AT [cmds] S14=n [cmds]

Range:

0-174

Unit:

Bit-mapped

Description:

Controls echo, result codes and display, dial mode, and answer/originate mode.

Bit

Value

Function

0

í 0

1

Command echo disabled

Command echo enabled

1

00

01

11

Result codes enabled

Result codes disabled

Result code sending enabled in originate mode

2

0

Not used

3

0

í 1

Display result codes in numeric format

Display result codes in verbose format

4

í 0

1

Smart mode

Dumb mode

5

0

1

Tone dial enabled

Pulse dial enabled

6

0

1

Restore profile 0 on power-up

Restore profile 1 on power-up

7

0 1

Answer mode enabled

Originate mode enabled

 

BIT-MAPPED REGISTER S16

Type:

Register

Format:

AT [cmds] S16=n [cmds]

Range:

0-125

Unit:

Bit-mapped

Description:

Controls loopback tests, clear-down signal, retraining, and result code sending

Bit

Value

Function

0

0

1

Remote digital loopback not requested

Remote digital loopback requested

1

0

í 1

Clear-down signal disabled

Clear-down signal enabled

2

0

í 1

Retraining disabled

Retraining enabled

3

0

Not used

4

0

1

DCE speed displayed; extended result codes disabled

DCE speed displayed; extended result codes enabled

5

0

1

DTE speed displayed; extended result codes disabled

DTE speed displayed; extended result codes enabled

6-7

0

Not used

BIT-MAPPED REGISTER S21

Format

AT [cmds] S21=n [cmds]

Range:

0-253

Unit:

Bit-mapped

Description:

Selects operating mode, line type, low DTR action, and the long space disconnect function.

Bit

Value

Function

0

í 0

1

Originate-only mode disabled

Originate-only mode enabled

1

í 0

1

Switched line (PSTN/Dial-up)

Leased line

2

í 0

1

CTS follows RTS

CTS forced high

4, 3

00

01

í 10

11

DTR signal ignored

Modem goes to command mode on low DTR

Modem disconnects on low DTR; Auto-Answer is disabled.

Modem is initialized on low DTR

5

0

í 1

DCD forced high

DCD normal

6

í 0

1

DSR forced high

DSR normal

7

í 0

1

Long space disconnect function disabled

Long space disconnect function enabled

 

BIT-MAPPED REGISTER S22

Format

AT [cmds] S22=n [cmds]

Range:

0-255

Unit:

Bit-mapped

Description:

Controls speaker volume and controls, limits results codes, and pulse dial make/break ratio.

Bit

Value

Function

1, 0

00

01

í 10

11

Low level volume

Low level volume

Medium level volume

High level volume

3, 2

00

01

í 10

11

Speaker off

Speaker off on carrier

Speaker always on

Speaker on during handshake

6 - 4

000

100

101

110

í 111

Basic result codes only enabled

Basic and connection speed result codes enabled

Basic and connection speed result codes and dialtone detection enabled

All result codes except dialtone detection enabled

All result codes enabled

7

í 0

1

39/61ms at 10pps (North America)

33/67ms at 10pps (Europe)

BIT-MAPPED REGISTER S23

Format

AT [cmds] S23=n [cmds]

Range:

0-189

Unit:

Bit-mapped

Description:

Grants/denies remote digital loopback, controls DTE rate and parity, and sets guard tone.

Bit

Value

Function

3 - 0

0000

0001

0010

0011

0100

0101

0110

0111

1000

1001

1010

1011

1100

1101

Sets serial port speed to 0-300bps

Not used

Sets serial port speed to 1200bps

Sets serial port speed to 2400bps

Sets serial port speed to 4800bps

Not used

Sets serial port speed to 9600bps

Not used

Sets serial port speed to 14.4Kbps

Sets serial port speed to 19.2Kbps

Sets serial port speed to 28.8Kbps

Sets serial port speed to 38.4Kbps

Sets serial port speed to 57.6Kbps

Sets serial port speed to 115.2Kbps

5, 4

í 00

01

10

11

Parity even

Space Parity

Parity odd

Mark or No Parity

7, 6

í 00

01

10

Guard tone disabled

Guard tone 550Hz enabled

Guard tone 1800Hz enabled

 

BIT-MAPPED REGISTER S27

Format

AT [cmds] S27=n [cmds]

Range:

0-255

Unit:

Bit-mapped

Description:

Selects synchronous/asynchronous mode, clock source, and DCE speed

Bit

Value

Function

1, 0

í 00

01

10

11

Asynchronous mode, serial port speed follows connect speed

Asynchronous off-line command mode and synchronous connect mode

Asynchronous off-line command mode; modem autodials first number in directory, then synchronous connect mode

Asynchronous off-line command mode on low DTR, synchronous connect mode on high DTR

3, 2

í 00

01

10

Local modem generates transmit clock source

Local DTE generates transmit clock source

Remote DCE/DTE generates transmit clock source

7-4

0000

0001

0010

0011

0100

0101

0110

0111

1000

1001

1010

1011

1100

1101

1110

DCE at 300bps

Not used

DCE at 1200bps

DCE at 2400bps

DCE at 4800bps

DCE at 7200bps

DCE at 9600bps

DCE at 12.0Kbps

DCE at 14.4Kbps

DCE at 16.8Kbps

DCE at 19.2Kbps

DCE at 21.6Kbps

DCE at 24.0Kbps

DCE at 26.4Kbps

DCE at 28.8Kbps

 

BIT-MAPPED REGISTER S28

Format

AT [cmds] S28=n [cmds]

Range:

Unidentified

Unit:

Bit-mapped

Description:

Controls power-on auto connect, security callback, automatic rate negotiation, and DCE protocol options

Bit

Value

Function

0

í 0

1

Power-on auto connect disabled

Power-on auto connect enabled

2, 1

í 00

01

11

Password check and callback disabled

Password check and callback enabled

Password check enabled; callback disabled

3

í 0

1

Automatic rate negotiation disabled

Automatic rate negotiation enabled

4-7

0000

í 0001

0010

0011

0100

0101

0110

0111

1000

1001

1010

1011

1100

1101

1110

1111

CCITT mode

Bell mode

Auto scan mode

CCITT V.23 mode

300bps

1200bps

2400bps

4800bps

9600bps

14.4Kbps

16.8Kbps

19.2Kbps

21.6Kbps

24.0Kbps

26.4Kbps

28.8Kbps