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ASM-10/8

RAD DATA COMMUNICATIONS

ASM-10/8

Modem Type

Data (synchronous/asynchronous)

Maximum Data Rate

19.2Kbps

Data Bus

External

Data Modulation Protocol

Proprietary

CONNECTIONS

Purpose

Location

Purpose

Location

RS-232

CN1

Transmit

XMT

AC power

CN2

Digital loopback switch

DIG

Ground

GND

Analog loopback switch

ANA

Receive

RCV

Remote loopback swtich

REM

AGC

Setting

JP12

» Forced high

Pins 2 & 3 closed

Normal

Pins 1 & 2 closed

ANALOG LOOPBACK

Setting

JP8

» Enabled

Pins 1 & 2 closed

Disabled

Pins 2 & 3 closed

ASYNCHRONOUS LENGTH - bits

Setting

SW2/S3

SW2/S4

8bits

Off

Off

9bits

Off

On

» 10bits

On

Off

11bits

On

On

ASYNCHRONOUS LENGTH - Characters

Setting

SW2/S2

» 12.5%

Off

25%

On

BAUD RATE

Setting

SW1

19.2Kbps

0

14.4Kbps

1

» 9600bps

2

7200bps

3

4800bps

4

3600bps

5

2400bps

6

1200bps

7

CD SIGNAL

Setting

JP4

CD normal

Pins 1 & 2 closed

» CD forced high

Pins 2 & 3 closed

CHASSIS TO SIGNAL GROUND

Setting

JP11

» Connected

Pins 1 & 2 closed

Disconnected

Pins 2 & 3 closed

CLOCK SOURCE

Setting

JP1/A

JP1/B

JP1/C

JP1/D

» Internal

Closed

Open

Open

Open

External

Open

Closed

Open

Open

Receive

Open

Open

Closed

Open

Asynchronous

Open

Open

Open

Closed

ENABLE PUSHBUTTONS

Setting

JP10

» DIG, ANA, REM enabled

Pins 1 & 2 closed

Disabled

Pins 2 & 3 closed

LINE CONNECTION

Setting

JP2

» 4-wire

Pins 2 & 3 closed

2-wire

Pins 1 & 2 closed

RECEIVE IMPEDANCE

Setting

JP7/A

JP7/B

JP7/C

JP7/D

» 150 Omhs

Closed

Open

Open

Open

300 Omhs

Open

Closed

Open

Open

600 Omhs

Open

Open

Closed

Open

High

Open

Open

Open

Closed

REMOTE LOOPBACK

Setting

JP9

» Enabled

Pins 1 & 2 closed

Disabled

Pins 2 & 3 closed

REMOTE POWER FAILURE

Setting

JP14

» Transmit RPF tone

Pins 1 & 2 closed

Doesn’t transmit RPF tone

Pins 2 & 3 closed

RTS/CTS DELAY

Setting

JP3/A

JP3/B

JP3/C

0 ms

Closed

Open

Open

» 8 ms

Open

Closed

Open

64 ms

Open

Open

Closed

TRANSMIT IMPEDANCE

Setting

JP6/A

JP6/B

JP6/C

JP6/D

» 150 Omhs

Open

Open

Closed

Open

300 Omhs

Open

Closed

Open

Open

600 Omhs

Closed

Open

Open

Open

Low

Open

Open

Open

Closed

TRANSMIT LEVEL

Setting

JP5/A

JP5/B

JP5/C

JP5/D

» 0dBm

Closed

Open

Open

Open

-3dBm

Open

Closed

Open

Open

-6dBm

Open

Open

Closed

Open

-9dBm

Open

Open

Open

Closed

V.54 DELAY

Setting

JP13

On

Pins 1 & 2 closed

» Off

Pins 2 & 3 closed

USER CONFIGURABLE SETTINGS

Function

Jumper/Switch

Position

Asynchronous legnth

SW2/S1

Off

DIAGNOSTIC LED(S)

LED

Color

Status

Condition

PWR

Green

On

Power is on

PWR

Green

Off

Power is off

RTS

Yellow

On

Request to Send enabled

RTS

Yellow

Off

Request to Send disabled

TD

Yellow

On

Modem is transmitting steady SPACE

TD

Yellow

Off

Modem is not transmitting data

TD

Yellow

Blinking

Modem is transmitting data

RD

Yellow

On

Modem is receiving steady SPACE

RD

Yellow

Off

Modem is not receiving data

RD

Yellow

Blinking

Modem is receiving data

DCD

Yellow

On

Carrier signal detected

DCD

Yellow

Off

Carrier signal not detected

TEST

Red

On

Modem in test mode

TEST

Red

Off

Modem not in test mode