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DP6200 "D" Series for Density Systems
Chapter 2 - Switches & Jumpers
DP 6200 "D" Series I/O Board
Figure 2-2, DP 6200 "D" Series I/O Board
Switch Settings - I/O Board
S1, Switch 1 and 2 - Supervisory Interrupt
The IES module communicates with the DP processors in the subsystem via a hardware interrupt which is configurable as IRQ 10 or IRQ 15. Note that if the secondary IDE controller is used, IRQ 15 is not available. If no IES is installed, configure the DP for no IES Supervisory interrupt.
S1, Switch 3, 4, 5 and 6 - SCSI Termination
Termination for the SCSI cable is enabled or disabled with a hardware switch on the board. SCSI termination should be enabled when the SCSI cable terminates at the DP processor or if the SCSI interface is not used. The Symbios 825A SCSI adapters can be enabled or disabled with hardware jumpers (JP1 and JP3).
Table 2-1, I/O Board - S1 Switch Settings
| Function | 1 |
2 |
3 |
4 |
5 |
6 |
| Supervisory Interrupt IRQ 10 * | on |
off |
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| Supervisory Interrupt IRQ 15 | off |
on |
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| No Supervisory Interrupt | off |
off |
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| Lower 8 bit SCSI #1 Termination Disable Enable |
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| Upper 8 bit SCSI #1 Termination Disable Enable |
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| Lower 8 bit SCSI #2 Termination Disable Enable |
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| Upper 8 bit SCSI #2 Termination Disable Enable |
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| *Factory Settings | on |
off |
off |
off |
off |
off |
Jumper Settings - I/O Board
Refer to figure 2-2 for jumper locations.
JP2 and JP4 - Ethernet #1 and #2 Adapters
DEC 21140 PCI Fast Ethernet (10/100 Mbps) controllers are integrated onto the DP series I/O card. One controller is provided as a default and two are optionally available for the model DP6200D. The controllers can be disabled via shunts on the I/O card.
JP1 and JP3 - SCSI #1 (external) and #2 (internal) Adapters
Termination for the SCSI cable is enabled or disabled with a hardware switch on the board. SCSI termination should be enabled when the SCSI cable terminates at the DP processor or if the SCSI interface is not used. The Symbios 825A SCSI adapter(s) can be enabled or disabled with hardware jumpers (JP2 and JP4).
Table 2-2, I/O Board Jumpers
Jumper |
Function |
Jumper 1-2 |
Jumper 2-3 |
JP1 |
SCSI #1 (Symbios 825A Controller) | Enabled |
Disabled |
JP2 |
Ethernet #2 (DEC 21140 Chipset) | Enabled |
Disabled |
JP3 |
SCSI #2 (Symbios 825A Controller) | Enabled |
Disabled |
JP4 |
Ethernet #1 (DEC 21140 Chipset) | Enabled |
Disabled |
DP 6200 "D" Series Processor Board
Figure 2-2, DP 6200 "D" Series processor Board
Jumper Settings - Processor Board
Refer to figure 2-1 for jumper locations.
Table 2-3, Flash BIOS and Password Jumpers
Jumper |
Function |
Jumper ON |
Jumper OFF |
JP1 |
BIOS Password |
Normal |
Disabled |
JP13 |
Flash Reprogram |
Enabled |
Disabled |
Video
A hardware jumper (JP14) can be set on the processor board to disable the on-board S3 Trio64V+(765) video controller. If this controller is disabled, an external video controller with a video BIOS at address C0000 hexadecimal must be installed.
Table 2-4, Video Enable/Disable Jumper
Jumper |
Function |
Jumper Pins |
Jumper Pins |
JP14 |
S3 Video Enable |
1-2 |
2-3 |
Other Processor Board Jumpers
Jumpers 3 to 11 are processor dependent, and should not be changed from the factory settings.
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