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ALLEGRA 56

U.S. ROBOTICS, INC.

ALLEGRA 56

Card Type

Network Adapter

NIC Type

Frame relay

Maximum Onboard Memory

Unidentified

Boot ROM

Unavailable

Network Transfer Rate

56Kbps

Data Bus

16-bit ISA

CONNECTIONS

Function

Label

RJ-45 interface

CN1

DMA CHANNEL SELECTION

Channel

JP2/A

JP2/B

JP2/C

JP2/D

JP2/E

JP2/F

 

0

Open

Open

Open

Closed

Open

Open

1

Open

Open

Open

Open

Closed

Open

 

3

Open

Open

Open

Open

Open

Closed

 

5

Open

Open

Closed

Open

Open

Open

 

6

Open

Closed

Open

Open

Open

Open

 

7

Closed

Open

Open

Open

Open

Open

DMA CHANNEL SELECTION (CONT.)

Channel

JP2/G

JP2/H

JP2/I

JP2/J

JP2/K

JP2/L

 

0

Open

Open

Open

Closed

Open

Open

1

Open

Open

Open

Open

Closed

Open

 

3

Open

Open

Open

Open

Open

Closed

 

5

Open

Open

Closed

Open

Open

Open

 

6

Open

Closed

Open

Open

Open

Open

 

7

Closed

Open

Open

Open

Open

Open

BASE I/O ADDRESS SELECTION

Setting

SW1/1

SW1/2

SW1/3

SW1/4

200h

On

On

On

On

220h

On

On

On

Off

240h

On

On

Off

On

260h

On

On

Off

Off

280h

On

Off

On

On

2A0h

On

Off

On

Off

2C0h

On

Off

Off

On

2E0h

On

Off

Off

Off

300h

Off

On

On

On

320h

Off

On

On

Off

340h

Off

On

Off

On

360h

Off

On

Off

Off

380h

Off

Off

On

On

3A0h

Off

Off

On

Off

3C0h

Off

Off

Off

On

3E0h

Off

Off

Off

Off

INTERRUPT SELECTION

IRQ

JP1/A

JP1/B

JP1/C

JP1/D

JP1/E

JP1/F

IRQ5

Open

Open

Open

Open

Open

Closed

IRQ9

Open

Open

Open

Open

Closed

Open

IRQ10

Open

Open

Open

Closed

Open

Open

IRQ11

Open

Open

Closed

Open

Open

Open

IRQ12

Open

Closed

Open

Open

Open

Open

IRQ15

Closed

Open

Open

Open

Open

Open

DIAGNOSTIC LED(S)

LED

Color

Status

Condition

LED1

Yellow

Off

Normal operating state

LED1

Yellow

Blinking

Loopback test is occuring

LED2

Green

Off

Frame relay network link is broken

LED2

Green

Blinking

Frame relay link is established but unstable

LED2

Green

On

Frame relay network link is good