212A/D modem/telephone/ISDN Settings and Configuration

Card Type	Modem (synchronous/asynchronous)
Chip Set	Unidentified
Maximum Data Rate	1200bps
Data Bus	External
Data Modulation Protocol	Bell 212A

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	S1/1	N/A
í Automatic Call Unit returns verbose result codes	S1/2	Off
Automatic Call Unit returns numeric result codes	S1/2	On
í Automatic Call Unit enabled	S1/7	On
Automatic Call Unit disabled	S1/7	Off
í XXXT<CR> escape sequence enabled	S1/8	On
XXXT<CR> escape sequence disabled	S1/8	Off
í Modem operates in originate mode when forced to manual	S2/1	Off
Modem operates in answer mode when forced to manual	S2/1	On
í Switched-line mode	S2/2	Off
Leased-line mode	S2/2	On
í Disconnect modem on receipt of a long space	S2/3	On
Do not disconnect modem on receipt of a long space	S2/3	Off
í Transmit long space on disconnect	S2/4	On
Do not transmit long space on disconnect	S2/4	Off
í Auto-answer enabled	S2/5	On
Auto-answer disabled	S2/5	Off
í Disconnect on loss of carrier	S2/6	On
Disconnect after 18s loss of carrier	S2/6	Off
í Disconnect modem on low DTR	S2/7	On
Do not disconnect modem on low DTR	S2/7	Off
í Line will not be set busy during test modes	S2/8	Off
Line will be set busy during test modes	S2/8	On
í DTR normal	S3/1	Off
DTR forced high	S3/1	On
í Pin 23 of RS-232 port ignored	S3/2	Off
Speed set to 1200bps when pin 23 of RS-232 port is high	S3/2	On
í Pin 25 of RS-232 port ignored	S3/3	Off
Analog loopback test performed when pin 25 of RS-232 port is high	S3/3	On
í Pin 12 of RS-232 port has no function	S3/4	Off
Pin 12 of RS-232 port high indicates speed set to 1200bps	S3/4	On

HANDSET POLARITY
Setting	JP3	JP4
í Normal	Pins 2 & 3 closed	Pins 2 & 3 closed
Reversed	Pins 1 & 2 closed	Pins 1 & 2 closed

RECEIVED CD SIGNAL
Setting	S1/3	S1/4
Forced low	Off	Off
Forced high	Off	On
Low when idle	On	Off

RESET TO FACTORY DEFAULTS
Setting	S1/3	S1/4
í Normal operation	See above table	See above table
Reset configuration	On	On

DATA FORMAT
Setting	S1/5	S1/6
9-bit characters, async mode	Off	Off
í 10-bit characters, async mode	Off	On
11-bit characters, async mode	On	Off
Synchronous mode	On	On

CLOCK SOURCE
Setting	JP6/A	JP6/B	JP6/C
Slave	Open	Open	Closed
Internal	Open	Closed	Open
External	Closed	Open	Open

DIAGNOSTIC LED(S)

The functions of the LEDs are unidentified.