MADGE NETWORKS, LTD.

SMART 16/4 AT BRIDGENODE

NIC Type

Token Ring

Transfer Rate

4/16 Mbps

Data Bus

16-bit ISA

Topology

Ring

Wiring Type

AUI trasceiver via DB-15 port

Shielded twisted pair

Unshielded twisted pair

Boot ROM

Available

INTERRUPT SELECT

IRQ

SW1/1

SW1/2

SW1/3

SW1/4

SW1/5

SW1/6

SW1/7

SW1/8

»

IRQ3

Off

Off

Off

Off

Off

Off

On

Off

 

IR/FONT>

Off

Off

Off

Off

Off

Off

Off

On

 

IRQ5

Off

Off

Off

Off

Off

On

Off

Off

 

IRQ7

Off

Off

Off

Off

On

Off

Off

Off

 

IRQ10

Off

Off

Off

On

Off

Off

Off

Off

 

IRQ11

Off

Off

On

Off

Off

Off

Off

Off

 

IRQ12

Off

On

Off

Off

Off

Off

Off

Off

 

IRQ15

On

Off

Off

Off

Off

Off

Off

Off

Note: Switch 1 is a slide switch, which allows only one position to be ‘on’ at a given time.

ADDRESS SELECT

I/O Address

Base Memory Address

SW2/1

SW2/2

»

0A20 - 02AFh

CC00O - CDFFFh

On

On

 

1A20 - 1A2Fh

DC000 - DDFFFh

Off

On

 

2A20 - 2A2Fh

CE000 - CFFFFh

On

Off

 

3A20 - 3A2Fh

DE000 - DFFFFh

Off

Off

BOOT ROM

Setting

SW2/3

»

Disabled

Off

 

Enabled

On

BUSMASTER DMA

Setting

SW2/4

»

Enabled

On

 

Disabled

Off

BUS AUTODETECT

Setting

SW2/5

»

Enabled

On

 

Disabled(Force 8-bit)

Off

BUS COMPATABILITY

Setting

SW2/6

»

Normal AT bus timing

On

 

Alternative bus timing

Off

CLOCK SOURCE

Setting

SW2/7

»

Asynchronous bus

Off

 

Synchronous bus

On

DATA TRANSFER RATE

Setting

SW2/8

»

4Mbps

On

 

16Mbps

Off

DMA CHANNEL SELECT

DMA

SW3/1

SW3/2

SW3/3

SW3/4

»

5

Off

Off

On

Off

 

1

On

Off

Off

Off

 

3

Off

On

Off

Off

 

6

Off

Off

Off

On

Note: Switch 1 is a slide switch, which allows only one position to be ‘on’ at a given time.

TWISTED PAIR CABLE TYPE SELECT

Setting

LB1

Shielded twisted pair

Unshielded twisted pair

Note: Jumper LB1 is used with a link block pictured above. Remove the block and replace with arrow in up or down position, depending on cable type.

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