1140 modem/telephone/ISDN Settings and Configuration

CONNECTIONS
Purpose	Location	Purpose	Location
Line out	CN1	RS-232/422	CN3
Line in	CN2

CARRIER CONTROL
Setting	SW3/H
» Always on	Off
Follows RTS	On

CLOCK SOURCE
Setting	SW3/E	SW3/F
» Internal transmit	On	On
Receive recover	Off	On
External transmit	On	Off

DATA RATE FLUCTUATION ALLOWED
Setting	SW4/C
-2.5% to 1%	Off
» -2.5% to 2.3%	On

LOOPBACK TEST SELECT
Setting	SW2
Local analog loopback	1
Normal operation	2
Remote digital loopback	3

MODE
Setting	SW3/G
» Asynchronous	On
Synchronous	Off

RTS/CTS DELAY
Setting	SW4/D	SW4/E
» 7ms	On	On
53ms	Off	On
Disabled	On	Off
Disabled	Off	Off

SPEED
Setting	SW3/A	SW3/B	SW3/C	SW3/D
1.2Kbps	On	On	On	On
1.8Kbps	Off	On	On	On
2.4Kbps	On	Off	On	On
3.6Kbps	Off	Off	On	On
4.8Kbps	On	On	Off	On
7.2Kbps	Off	On	Off	On
» 9.6Kbps	On	Off	Off	On
14.4Kbps	Off	Off	Off	On
19.2Kbps	On	On	On	Off
28.8Kbps	Off	On	On	Off
38.4Kbps	On	On	Off	Off
57.6Kbps	Off	On	Off	Off

TEST SELECT
Setting	SW1
Generate 511 test pattern	1
Normal operation	2
Generate 511E test pattern	3

V.54 LOOPBACK TEST
Setting	SW4/H
» Enabled	Off
Disabled	On

WORD LENGTH
Setting	SW4/A	SW4/B
8 bit	Off	On
9 bit	On	On
» 10 bit	Off	Off
11 bit	On	Off

FACTORY CONFIGURED SETTINGS
Switch	Setting
SW4/F	Not used
SW4/G	Not used

DIAGNOSTIC LED(S)
LED	Color	Status	Condition
ERROR	Red	Blinking	Errors detected during V.54 test
ERROR	Red	On	Test pattern generator functional
ERROR	Red	Off	Normal operation
TEST	Red	On	Local analog loopback test in progress
TEST	Red	Off	Normal operation