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 (CON’T) | ||
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 DTRSynchronous 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. | |||