PATTON ELECTRONICS COMPANY

1140

Modem Type

Data (synchronous/asynchronous)

Maximum Data Rate

38.4Kbps

Data Bus

External

Data Modulation Protocol

Proprietary

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