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E1000 Jumper and Switch Settings

HELP: Board View , Hardware Tables.

The E1000 DNI card has the following jumpers and switches:

Setting Interrupt Request Level Jumper

The Interrupt Request Jumper, JP1, must be set to one of six possible levels. This jumper sets the interrupt that the DNI card will use within the PC.

Note that the orientation for JP1 is different for E1020/-X (View B), as compared to the E1010/-X, E1030/-X, and E1040/-X cards (View A). The E1000 and JP1 were designed in two revisions: one to support XT machines (Figure 1A) and one to support AT machines (Figure 1B).

Figure 1A. Setting the Interrupt Request Level Jumper (4 position jumper for XT machine)

Select interrupt 3 by placing the shunt over pins 1 and 5 (default).

Select interrupt 4 by placing the shunt over pins 2 and 6.

Select interrupt 5 by placing the shunt over pins 3 and 7.

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

Figure 1B. Setting the Interrupt Request Level Jumper (6 position jumper for AT machine)

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

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 (Interrupt 2 when placed in an XT machine) by placing the shunt over pins 6 and 12.

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 2. 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. Use the table below to 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 DMA Acknowledge and DMA Request

The DNI Card has two jumpers, JP3 and JP4 (first generation E1000 only) for setting the Direct Memory Access (DMA). DMA allows the card to directly access the PC's memory, and bypass the CPU. After the DNI has requested DMA, the CPU must acknowledge that request before the DMA can function. (Note: not all revisions may have these jumpers.)

Figure 3. Setting the DMA Acknowledge and DMA Request

The DMA is turned off if no shunts are used in the DMA jumpers.

Note: The JP3 and JP4 jumpers must be set to the same channel in order for the DMA to function properly. The DMA channel you set on your DNI card must be the same DMA channel that was set in your network platform software.

The DMA Acknowledge jumper, JP3, must be set to one of three possible Dack channels:

To select Dack 1, place the shunt over pins 3 and 4 (default setting).

To select Dack 2, place the shunt over pins 5 and 5.

To select Dack 3, place the shunt over pins 1 and 2.

The DMA Request (Drq) jumper, JP4, must be set to one of the three possible Drq channels:

To select Drq 1, place the shunt over pins 3 and 4 (default setting).

To select Drq 2, place the shunt over pins 5 and 6.

To select Drq 3, place the shunt over pins 1 and 2.

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 4. Setting the Port Select Switch

For the E1010, E1010-X, E1030, E1030-X, E1040, and E1040-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 E1020 and E1020-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 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 5. Setting the SQE Test Switch

For the E1020/X, E1030/-X, and E1040/-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 E1010/-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.

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 E10xx DNI card (8KB memory).

If the jumper is positioned over the center pin and the pin labeled "32", then this jumper is properly set for an E10xx-X DNI card (32KB memory).

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

The E1020/-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. JP7 - Setting the Internal Transceiver Power Select Jumper

Note: Some revisions of E1020/-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.