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 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.