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SMART 16/4 FIBER AT RINGNODE

MADGE NETWORKS, LTD.

SMART 16/4 FIBER AT RINGNODE

NIC Type

Token Ring

Transfer Rate

4/16Mbps

Data Bus

16-bit ISA

Topology

Ring

Wiring Type

62.5/125m m multimode graded index optical fiber

Boot ROM

Available

ADDRESS SELECT

I/O Address

Base Memory Address

SW2/1

SW2/2

0A20 - 0A2Fh

CC000 - CDFFFh

On

On

 

1A20 - 1A2Fh

DC000 - DFFFFh

Off

On

 

2A20 - 2A2Fh

CE000 - CFFFFh

On

Off

 

3A20 - 3A2Fh

DE000 - DFFFFh

Off

Off

AT BUS TIMING COMPATIBILITY

Setting

SW2/6

Normal

On

 

Alternate

Off

BOOT ROM

Setting

SW2/3

Disabled

Off

 

Enabled

On

BUS MASTER DMA

Setting

SW2/4

Enabled

On

 

Disabled

Off

CLOCK SOURCE

Setting

SW2/7

Asynchronous

Off

 

Synchronous

On

CONCENTRATOR TYPE

Setting

LB1

802.5J

 

Local wrap

Note: Concentrator type is determined by placing a link block over the LB1 jumper block. The block has an arrow printed on the front and should resemble the diagram shown above.

DATA TRANSFER RATE

Speed

SW2/8

16Mbps

Off

 

4Mbps

On

DMA CONFIGURATION

DMA

SW3

5

Position 3

 

1

Position 1

 

3

Position 2

 

6

Position 4

Note: Switch 3 is a four-position slide switch. Each position should be silk-screened on the switch itself.

8/16 BIT MODE

Setting

SW2/5

8/16-bit mode

On

 

Force 8-bit mode

Off

INTERRUPT SELECT

IRQ

SW1

IRQ3

Position 7

 

IR/FONT

Position 8

 

IRQ5

Position 6

 

IRQ7

Position 5

 

IRQ10

Position 4

 

IRQ11

Position 3

 

IRQ12

Position 2

 

IRQ15

Position 1

Note: Switch 1 is an eight-position slide switch. Each position should be silk-screened on the switch itself.

CONNECTIONS

Purpose

Location

Fiber-optic transmitter

Tx

Fiber-optic receiver

Rx