The Retro Web CNET CN190ST Network Interface Card Instructions

The Retro Web CNET CN190ST Network Interface Card

Product Specifications

• Brand: CNET TECHNOLOGY, INC.
• Model: CN190ST
• NIC Type: ARCnet
• Transfer Rate: 2.5Mbps
• Data Bus: 16-bit ISA
• Toplogy: Star
• Wiring Type: Unshielded twisted pair RG-62A/U 93ohm coaxial
• Boot ROM: Available

Product Usage Instructions

Node Address Settings:
Node addresses range from 1 to 254. Follow the table provided in the manual to set the node address using the switches SW1/1 to SW1/8.

Response/Reconfiguration Timeouts
Set the response and reconfiguration timeouts according to your network requirements using JP1 jumper settings.

Interrupt Request Settings
Configure the interrupt request settings using JP3, JP4, JP5, JP6, JP7, JP9, JP10, JP11, JP12, JP14, and JP15 as per your system setup.

Cable Type and I/O Base Address
Set the cable type and I/O base address by configuring JP16, JP17, SW2/1, SW2/2, SW2/3, SW2/4 according to the specified values in the manual.

Base Memory Address & Boot ROM Address
Adjust the base memory address and boot ROM address using SW2/5, SW2/6, SW2/7, and SW2/8 switches as indicated in the manual.

Diagnostic LED Status:
Monitor data transmission or reception status through LED1. When on, data is being transmitted or received; when off, no data is being transmitted or received.
Frequently Asked Questions (FAQ)

Q: How many node addresses are available for setting?
A: A total of 255 node address settings are available.

Q: What does the diagnostic LED indicate?
A: The LED1 indicates whether data is being transmitted or received (on) or not (off).

THE NETWORK INTERFACE CARD TECHNICAL GUIDE 336

Chapter 5: Jumper Settings

CNET TECHNOLOGY, INC.

• C N 1 9 0 S T
• NIC Type ARCnet
• Transfer Rate 2.5Mbps
• Data Bus 16-bit ISA
• Topology Star
• Wiring Type Unshielded twisted pair
• RG-62A/U 93ohm coaxial
• Boot ROM Available

| NODE ADDRESS|
---|---|---
Node| SW1/1| SW1/2| SW1/3| SW1/4| SW1/5| SW1/6| SW1/7| SW1/8
0| –| –| –| –| –| –| –| –
1| Off| On| On| On| On| On| On| On
2| On| Off| On| On| On| On| On| On
3| Off| Off| On| On| On| On| On| On
4| On| On| Off| On| On| On| On| On
251| Off| Off| On| Off| Off| Off| Off| Off
252| On| On| Off| Off| Off| Off| Off| Off
253| Off| On| Off| Off| Off| Off| Off| Off
254| On| Off| Off| Off| Off| Off| Off| Off
255| Off| Off| Off| Off| Off| Off| Off| Off
Note: Node address 0 is used for messaging between nodes and must not be used.
A total of 255 node address settings are available. The switches are a binary represe decimal node addresses. Switch 1 is the Least Significant Bit and switch 8 is the Most The switches have the following decimal values: switch 1=1, 2=2, 3=4, 4=8, 5=16, 6=32, Turn off th switches and add the values of the off switches to obtain the correct node ad off=1)| ntation of the Significant Bit. 7=64, 8=128.dress. (On=0,
| RESPONSE/RECONFIGURATION TIMEOUTS|
---|---|---
Response Time                Reconfiguration Time                          JP1 JP2
74.7ms| 840ms| Open| Open
283.4ms| 1680ms| Closed| Open
561.8ms| 1680ms| Open| Closed
1118.6ms| 1680ms| Closed| Closed
Note: All NICs on the network must have this option set the same.
| INTERRUPT REQUEST|
---|---|---
IRQ| JP3| JP4| JP5| JP6| JP7| JP9| JP10| JP11| JP12| JP14| JP15
í3| Close d| Open| Open| Open| Open| Open| Open| Open| Open| Open| Open
4| Open| Close d| Open| Open| Open| Open| Open| Open| Open| Open| Open
5| Open| Open| Close d| Open| Open| Open| Open| Open| Open| Open| Open
6| Open| Open| Open| Close d| Open| Open| Open| Open| Open| Open| Open
7| Open| Open| Open| Open| Close d| Open| Open| Open| Open| Open| Open
9| Open| Open| Open| Open| Open| Close d| Open| Open| Open| Open| Open
10| Open| Open| Open| Open| Open| Open| Close d| Open| Open| Open| Open
11| Open| Open| Open| Open| Open| Open| Open| Close d| Open| Open| Open
12| Open| Open| Open| Open| Open| Open| Open| Open| Close d| Open| Open
14| Open| Open| Open| Open| Open| Open| Open| Open| Open| Close d| Open
15| Open| Open| Open| Open| Open| Open| Open| Open| Open| Open| Close d
| CABLE TYPE|
---|---|---
Type JP16 & JP17
íUnshielded twisted pair| Pins 1 & 2 Closed
RG-62A/U 93ohm coaxial| Pins 2 & 3 Closed
| I/O BASE ADDRESS|
---|---|---
Address                        SW2/1                          SW2/2 SW2/3                          SW2/4
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

THE NETWORK INTERFACE CARD TECHNICAL GUIDE

LED                                       Status Condition
LED1| On| Data is being transmitted or received
LED1| Off| Data is not being transmitted or received

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