PARADYNE CORPORATION

COMSPHERE 3810PLUS

COMSPHERE 3820PLUS

Modem Type

Data (synchronous/asynchronous)

Maximum Data Rate

28.8Kbps

Data Bus

External

Data Modulation Protocol

AT&T V.32terbo, V.34, Point to Point diagnostic, Trellis Multipoint

Bell 103A/212A

ITU-T V.21, V.22, V.22bis, V23, V.27bis, V.27ter, V.29, V.32, V.33, V.32bis, V.34

Error Correction/Compression

MNP5, V.42, V.42bis

CONNECTIONS

Purpose

Location

Purpose

Location

Switched line

CN1

Power switch

SW1

Leased line

CN2

Scroll left

CN6

RS-232/422

CN3

Scroll right

CN7

DC power

CN4

Go up one level

CN8

Network Management (proprietary)

CN5

Go to top level

CN9

DIAGNOSTIC LED(S)

LED

Color

Status

Condition

PWR

Green

On

Power is on

PWR

Green

Off

Power is off

ALRM

Red

Blinking

Major alarm detected in a remote 392x series modem

ALRM

Red

Off

Normal operation

DIAG

Green

On

Modem is receiving diagnostic messages

DIAG

Green

Off

Modem is not receiving diagnostic messages

DTR/108

Green

On

DTR signal is high

DTR/108

Green

Off

DTR signal is low

RTS/105

Green

On

RTS signal is high

RTS/105

Green

Off

RTS signal is low

CTS/106

Green

On

CTS signal is high

CTS/106

Green

Off

CTS signal is low

TXD/103

Green

On

Modem is receiving data from DTE

TXD/103

Green

Off

Modem is not receiving data from DTE

LSD/109

Green

On

Carrier signal detected

LSD/109

Green

Off

Carrier signal not detected

RXD/104

Green

On

Modem is transmitting data to DTE

RXD/104

Green

Off

Modem is not transmitting data to DTE

SQ

Yellow

Blinking

Line signal is degraded or data path is being blocked

SQ

Yellow

Off

Normal operation

TEST/142

Yellow

On

Test connection established

TEST/142

Yellow

Blinking

Modem is upgrading firmware

TEST/142

Yellow

Off

No test connection established

RATE

Yellow

On

Modem is connected at less than configured speed

RATE

Yellow

Off

Modem is connected at configured speed

DIAL

Yellow

On

Modem is establishing a switched line connection

DIAL

Yellow

Blinking

Switched line connection established

DIAL

Yellow

Off

No switched line connection

Proprietary AT Command Set

ANTISTREAMING

Type:

Register

Format:

AT [cmds] S72=n [cmds]

Example:

AT S72=0 &W<CR>

Description:

Selects antistreaming option

í Command

Function

í 72=0

Disabled

í S72=1

10 seconds

í S72=2

30 seconds

í S72=3

1 minute

í S72=4

2 minutes

í S72=5

3 minutes

í S72=6

5 minutes

AT COMMAND RESPONSE

Type:

Register

Format:

AT [cmds] S84=n [cmds]

Example:

AT S84=0 &W<CR>

Description:

Sets the response to AT commands.

í Command

Function

í S84=0

Normal operation

í S84=1

Execute valid commands, suppress error codes.

í S84=2

Ignore configuration commands, always return OK error code.

AUTO BAUD

Type:

Register

Format:

AT [cmds] S78=n [cmds]

Example:

AT S78=0 &W<CR>

Description:

Allows modem to connect at remote modem’s modulation.

í Command

Function

í S78=0

Auto baud enabled.

í S78=1

Auto baud disabled.

 

AUTO-RELIABLE FALLBACK CHARACTER

Type:

Configuration

Format:

AT [cmds] %An [cmds]

Example:

AT%A20<CR>

Default:

15

Range:

0-127

Unit:

ASCII

Description:

Sets the character used as the auto-reliable fallback character. %A0 will disable this function.

AUTO-RELIABLE TIME BUFFER CONFIGURATION

Type:

Configuration

Format:

AT [cmds] \Cn [cmds]

Example:

AT \C1 &W<CR>

Description:

Controls the handling of incoming data during auto-reliable time period.

í Command

Function

í \CO

Data is discarded.

í \C1

Data is buffered.

í \C2

Data is discarded, resets to \C1 on receipt of autoreliable fallback character.

BREAK TYPE

Type:

Configuration

Format:

AT [cmds] \Kn [cmds]

Example:

AT \K5 &W<CR>

Description:

Selects response to DTE break command.

í Command

Function

í \K0

Send break, clear buffer, enter command mode.

í \K1

Send break, clear buffer

í \K2

Send break, send data, enter command mode.

í \K3

Send break. send data,

í \K4

Send data, send break, enter command mode.

í \K5