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E2000 Jumper and Switch Settings

HELP: Board Views, Hardware Tables.

The E2000 DNI card has the following jumpers and switches:

Setting The Interrupt Request Level Jumper

The Interrupt Request Level Jumper, JP1, must be set to one of 11 possible settings and sets the level that the card will use within the PC. See the figure below.

Figure 1. Setting the Interrupt Level Request Jumper

Set the jumper shunt to the desired setting (interrupts 3 through 15) as follows:

Select interrupt 3 by placing the shunt over pins 1 and 7 (default setting).

Select interrupt 4 by placing the shunt over pins 2 and 8.

Select interrupt 5 by placing the shunt over pins 3 and 9.

Select interrupt 6 by placing the shunt over pins 4 and 10.

Select interrupt 7 by placing the shunt over pins 5 and 11.

Select interrupt 9 by placing the shunt over pins 6 and 12.

Select interrupt 10 by placing the shunt over pins 8 and 14.

Select interrupt 11 by placing the shunt over pins 9 and 15.

Select interrupt 12 by placing the shunt over pins 10 and 16.

Select interrupt 14 by placing the shunt over pins 11 and 17.

Select interrupt 15 by placing the shunt over pins 12 and 19.

Setting The Board Address Select Jumper

This jumper allows you to set the I/O (Input/Output) base address that identifies the DNI Card to the PC. The I/O address is a hexidecimal field that distinguishes the DNI Card from other cards in the PC. The two shunts are supplied with the jumper in the event you want to use the 220H address setting.

Figure 1. Setting the Board Select Jumper (I/O 200H shown)

The 280H and 300H settings are reversed on the twisted pair cards, compared to the fiber optic and coax cards. Set JP2 to the desired address as follows: 


Base Address    Pin    Pin    Pin    Pin    Base Address  

Coax & F.O.     1      2      3      4      T.P.        
 



220H            X      X      X      X      220H          



280H            X             X             300H          



300H                   X             X      280H          



380H                                        380H

Setting The Port Select Switch

The Port Select Switch determines whether the media or AUI port will be used to connect the PC to the network. This switch should be set before the DNI card is installed in the PC. The board is labeled by the switch with AUI for the AUI port; and TP (Twisted Pair), FO (fiber optic), or COAX (coaxial) for the media port.

Figure 3. Setting the Port Select Switch

For the E2010/-X, E2030/-X, E2040/-X cards, (View A).

Move the switch towards the cable connectors to select the media interface (default setting). The media setting is labeled either TP for twisted pair or FO for fiber optic.

Move the switch away from the cable connectors to select the AUI interface. The setting is labeled as AUI.

For the E2020 and E2020-X (View B).

Move the switch towards the bus connector to select the BNC interface (default setting). This setting is labeled as COAX.

Move the switch away from the bus connector to select the AUI interface. The setting is labeled as AUI.

Setting The Wait State Jumper

You may need to set the Wait State Jumper (JP3) to change the DNI Card's timing if your PC has a bus architecture inconsistency. JP3 is simply a two pin jumper shipped with the shunt in place for the default setting of normal timing. Therefore, you will not have to touch this jumper for most PC's. However, certain computers, such as a PS/2 Model 30-286, have bus architecture inconsitencies and need the timing to be adjusted.

Figure 4. Setting the Wait State Jumper

JP3 is located next to JP1 on each E2000 series card. Set the Wait State Jumper:

Leave the shunt on JP3 for normal timing (Wait State of zero)

Remove the shunt to adjust the wait state timing (Wait State of one).

Setting The Controller Operational Speed Jumper

The DNI Cards' Controller Operational Speed is set by a switch or jumper, JP4, on the standard AT DNI Cards. This allows you to set the speed at which your card's Network Interface Controller (NIC) Chip operates; either 10 Mhz or 20 Mhz. The speed setting can provide better network performance. Some versions of the E2000 Series DNI Cards use a two position switch to set the speed, while others may use a three-pin jumper

CAUTION: The 20 Mhz setting can cause bus timing inconsistencies in some types of computers.

Figure 5. Setting the Controller Operational Speed Jumper or Switch

If JP4 is a switch (View A), set the controller operational speed as follows:

Move the switch toward the top of the card to select 10 Mhz (default setting). Move the switch toward the bottom of the card to select 20 Mhz.

If JP4 is a jumper (View B), set the controller operational speed as follows:

Place the shunt over pins 1 and 2 to select 10 Mhz (default setting). Place the shunt over pins 2 and 3 to select 20 Mhz.

JP6 (internal jumper)

This jumper is not user selectable and should be hard-wired onto the board by default.

Figure 6. The JP6 Internal Jumper Settings

If the jumper is positioned over the center pin and the pin labeled "8", then this jumper is properly set for an E20xx DNI card (16KB memory).

If the jumper is positioned over the center pin and the pin labeled "32", then this jumper is properly set for an E20xx-X DNI card (64KB memory).

Setting the SQE Switch

The Signal Quality Error (SQE) Test Switch allows you to enable or disable the SQE ("heartbeat") test function on the DNI Card. The SQE Test function can be enabled or disabled when the DNI Card is connected to the network through the media port. You would generally disable the SQE when you are attached to the media port, unless you are checking the validity of the SQE Test. If the DNI Card will be attached to the network through the AUI port, the SQE should be set in the external transceiver. See the figure below for the switch's location. The SQE is disabled when the card is shipped.

Figure 6. Setting the SQE Test Switch

For the E2010/X, E2030/-X, and E2040/-X, set the SQE switch as follows (View A).

To disable the SQE test function, set the switch away from the bus connector (default setting) to the OFF setting

To enable the SQE test function, se the switch towards the bus connector to the ON setting.

For the E2020/-X, set the SQE switch as follows (View B).

To disable the SQE test function, set the switch away from the bus connector (default setting) to the zero ("0") setting.

To enable the SQE test function, set the switch towards the bus connector to the one ("1") ON setting.

Setting the Internal Transceiver Power Select Jumper (Coax Cards Only).

The E2020/-X Coaxial DNI Cards each have an internal Transceiver Power Select Jumper, JP7 , that must be set to one of two possible settings. This jumper controls a DC converter on the card that supplies power when the BNC port is used. When the BNC port is used, the converter must be turned on. When the AUI port is used, the converter must be turned off for low power consumption.

Figure 7. Setting the Internal Transceiver Power Select Jumper

Note: Some generation of E10120/-X DNI Cards may not have this jumper.

Set the jumper as follows:

Place a shunt over pins one and two if the BNC port will be used (default setting). This is the ON setting.

Place a shunt over pins two and three if the AUI port will be used. This is the OFF setting.