HwMuseum | Index

AQUILA COMMUNICATIONS

AQ-PCA 108/AQ-PCA 208/AQ-PCA 308

NIC Type:

ARCnet

Transfer Rate:

2.5Mbps

Data Bus:

8-bit ISA

Topology:

Linear Bus (AQ-PCA-208/308)

Star (AQ PCA-108/308)

Wiring Type

AUI tranceiver via DB-15 port

RG-62A/U 93ohm coaxial (AQ-PCA-208)

Shielded/Unshielded twisted pair

Boot ROM

Available

BOOT ROM

Setting

JP1

Enabled

Closed

Disabled

Open

INTERRUPT SELECT - JP2

IRQ

Jumper A

Jumper B

Jumper C

Jumper D

Jumper E

»

IRQ2

Closed

Open

Open

Open

Open

 

IRQ3

Open

Closed

Open

Open

Open

 

IRQ4

Open

Open

Closed

Open

Open

 

IRQ5

Open

Open

Open

Closed

Open

 

IRQ7

Open

Open

Open

Open

Closed

EXTENDED TIME-OUT

Setting

E1

E2

»

78µs

Open

Open

 

285µs

Open

Closed

 

563µs

Closed

Open

 

1130µs

Closed

Closed

Note:All nodes in the network must have identical time-out settings.

NODE ID NUMBER

ID #

SW1/1

SW1/2

SW1/3

SW1/4

SW1/5

SW1/6

SW1/7

SW1/8

»

255

On

On

On

On

On

On

On

On

 

1

Off

Off

Off

Off

Off

Off

Off

On

Note:Nodes can be numbered from 1 to 255. The switches are a binary representation of the node numbers. When a switch is on, the corresponding bit is set to 1 and has the following decimal value: SW1/1=128, SW1/2=64, SW1/3=32, SW1/4=16, SW1/5=8, SW1/6=4, SW1/7=2, SW1/8=1.

MEMORY ADDRESS

RAM Address

ROM Address

SW2/1

SW2/2

SW2/3

SW2/4

SW2/5

»

D0000h

D2000h

On

Off

Off

On

On

 

D0800h

D2000h

On

Off

Off

On

Off

 

C0000h

C2000h

On

On

On

On

On

 

C0800h

C2000h

On

On

On

On

Off

 

C1000h

C2000h

On

On

On

Off

On

 

C1800h

C2000h

On

On

On

Off

Off

 

C4000h

C6000h

On

On

Off

On

On

 

C4800h

C6000h

On

On

Off

On

Off

 

C5000h

C6000h

On

On

Off

Off

On

 

C5800h

C6000h

On

On

Off

Off

Off

 

CC000h

CE000h

On

Off

On

On

On

 

CC800h

CE000h

On

Off

On

On

Off

 

CD000h

CE000h

On

Off

On

Off

On

 

CD800h

CE000h

On

Off

On

Off

Off

 

D1000h

D2000h

On

Off

Off

Off

On

 

D1800h

D2000h

On

Off

Off

Off

Off

 

D4000h

D6000h

Off

On

On

On

On

 

D4800h

D6000h

Off

On

On

On

Off

 

D5000h

D6000h

Off

On

On

Off

On

 

D5800h

D6000h

Off

On

On

Off

Off

 

D8000h

DA000h

Off

On

Off

On

On

 

D8800h

DA000h

Off

On

Off

On

Off

MEMORY ADDRESS

RAM Address

ROM Address

SW2/1

SW2/2

SW2/3

SW2/4

SW2/5

D9000h

DA000h

Off

On

Off

Off

On

D9800h

DA000h

Off

On

Off

Off

Off

DC000h

DE000h

Off

Off

On

On

On

DC800h

DE000h

Off

Off

On

On

Off

DD000h

DE000h

Off

Off

On

Off

On

DD800h

DE000h

Off

Off

On

Off

Off

E0000h

E2000h

Off

Off

Off

On

On

E0800h

E2000h

Off

Off

Off

On

Off

E1000h

E2000h

Off

Off

Off

Off

On

E1800h

E2000h

Off

Off

Off

Off

Off

Note:ROM address locations are only valid if JP1 is closed (Boot ROM enabled).

I/O ADDRESS

Address

SW2/6

SW2/7

SW2/8

»

2E0h

On

Off

On

 

260h

On

On

On

 

290h

On

On

Off

 

2F0h

On

Off

Off

 

300h

Off

On

On

 

350h

Off

On

Off

 

380h

Off

Off

On

 

3E0h

Off

Off

Off