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V.2225

MOTOROLA, INC.

V.2225

Card Type

Modem (synchronous/asynchronous)

Chip Set

Unidentified

Maximum Data Rate

1200bps

Data Bus

External

Data Modulation Protocol

Bell 103, 212A

ITU-T V.21, V.22

CONNECTIONS

Function

Label

Function

Label

Line out

CN1

AC power in

CN4

Line in

CN2

Talk/data switch

SW1

RS-232/422

CN3

300/1200bps switch

SW2

USER CONFIGURABLE SETTINGS

Setting

Label

Position

í Chassis ground connected to signal ground

JP1

Pins 2 & 3 closed

Chassis ground not connected to signal ground

JP1

Pins 1 & 2 closed

í Transmit level set to -9 (permissive)

JP2

Pins 2 & 3 closed

Transmit level set to programmable

JP2

Pins 1 & 2 closed

í Factory configured - do not alter

JP5

Unidentified

í Factory configured - do not alter

JP6

Unidentified

í Factory configured - do not alter

JP7

Unidentified

í Factory configured - do not alter

JP8

Unidentified

í Factory configured - do not alter

JP9

Unidentified

í Factory configured - do not alter

JP10

Unidentified

í Factory configured - do not alter

JP11

Unidentified

í Factory configured - do not alter

JP12

Unidentified

í Factory configured - do not alter

JP13

N/A

Synchronous mode does not detect ring and dial tone

JP14

Pins 2 & 3 closed

Synchronous mode detects ring and dial tone

JP14

Pins 1 & 2 closed

í Factory configured - do not alter

JP15

Unidentified

í Factory configured - do not alter

JP16

Unidentified

USER CONFIGURABLE SETTINGS (CONíT)

Setting

Label

Position

í Synchronous mode uses ASCII

S3/3

On

Synchronous mode uses EBCDIC

S3/3

Off

í Asynchronous mode uses 10-bit characters

S4/1

Off

Asynchronous mode uses 11-bit characters

S4/1

On

í Bell/ITU-T mode determined by B command

S4/2

Off

Use ITU-T protocols

S4/2

On

í DTR normal

S4/3

Off

DTR used for off/on hook in manual answer/originate

S4/3

On

í Line will not be set busy during test modes

S4/4

Off

Line will be set busy during test modes

S4/4

On

í Line type determined by &L command

S4/5

Off

Leased-line mode

S4/5

On

í Modem operates in answer mode in leased-line mode

S4/6

Off

Modem operates in originate mode in leased-line mode

S4/6

On

í Simulated half-duplex to another V.2225 disabled

S4/7

Off

Simulated half-duplex to another V.2225 enabled

S4/7

On

í Sync/async mode set by &M command

S4/8

Off

Synchronous mode

S4/8

On

í DCD forced low when idle

S5/1

Off

DCD forced high when idle

S5/1

On

í DSR forced low when idle

S5/2

Off

DSR forced high when idle

S5/2

On

í CTS forced low when idle

S5/3

Off

CTS forced high when idle

S5/3

On

í Auto-answer disabled in dumb mode

S5/4

Off

Auto-answer enabled in dumb mode

S5/4

On

í Modem will not automatically reconnect

S5/5

Off

Modem will automatically reconnect after 3 seconds

S5/5

On

í Disconnect modem on receipt of long space if indicated by Y command

S5/6

Off

Disconnect modem on receipt of long space

S5/6

On

í Disconnect on loss of carrier

S5/7

Off

Do not disconnect on loss of carrier

S5/7

On

í Asynchronous mode: Follow &D on low DTR

Synchronous mode: Do not disconnect modem on low DTR

S5/8

Off

Asynchronous mode: Disconnect and reset modem on low DTR

Synchronous mode: Disconnect modem on low DTR

S5/8

On

Note: JP13 is used for jumper storage only.

HANDSET POLARITY

Setting

JP3

JP4

í Normal

Pins 2 & 3 closed

Pins 1 & 2 closed

Reversed

Pins 1 & 2 closed

Pins 2 & 3 closed

DATA PARITY

Setting

S3/1

S3/2

Even parity

Off

Off

Space parity

On

Off

í Odd parity

Off

On

Mark parity

On

On

CLOCK SOURCE

Setting

S3/4

S3/5

í Set by &X command

Off

Off

Internal

On

Off

External

Off

On

Slave

On

On

COMMAND SET AND AUTO-ANSWER

Command Set

Auto-Answer

SW3/6

SW3/7

SW3/8

Disabled

See S5/4

Off

Off

Off

AT command set

Set with S0

On

Off

Off

V.25bis Byte Sync

Enabled

Off

On

Off

V.25bis SDLC

Enabled

On

On

Off

V.25bis Bisync

Enabled

Off

Off

On

V.25bis Byte Sync

Disabled

On

Off

On

V.25bis SDLC

Disabled

Off

On

On

V.25bis Bisync

Disabled

On

On

On

TRANSMISSION ATTENUATION LEVEL

Setting

SW6/1

SW6/2

SW6/3

SW6/4

0dBm

Off

Off

Off

Off

-1dBm

On

Off

Off

Off

-2dBm

Off

On

Off

Off

-3dBm

On

On

Off

Off

-4dBm

Off

Off

On

Off

-5dBm

On

Off

On

Off

-6dBm

Off

On

On

Off

-7dBm

On

On

On

Off

-8dBm

Off

Off

Off

On

-9dBm

On

Off

Off

On

-10dBm

Off

On

Off

On

-11dBm

On

On

Off

On

-12dBm

Off

Off

On

On

-13dBm

On

Off

On

On

-14dBm

Off

On

On

On

-15dBm

On

On

On

On

DIAGNOSTIC LED(S)

LED

Color

Status

Condition

MR/RI

Red

On

Power is on

MR/RI

Red

Off

Power is off

MR/RI

Red

Blinking

Phone is ringing

TR

Red

On

DTR signal is high

TR

Red

Off

DTR signal is low

HS

Red

On

Modem is operating at 1200bps

HS

Red

Off

Modem is operating at 300bps

RD

Red

On

Modem is receiving data

RD

Red

Off

Modem is not receiving data

TD

Red

On

Modem is transmitting data

TD

Red

Off

Modem is not transmitting data

TM

Red

On

Modem is in test mode

TM

Red

Off

Modem is not in test mode

Note: The functions of MC and LED1 are unidentified.