Termination Override Switch Settings For U1 And U2 - LSI LSIU40SE User Manual

Figure 2.18 Termination Override Switch Settings for U1 and U2
1-INT50
2-INT68
3-UPPER TERM
4-EXT68
Detailed Installation Procedure
1
Default setting. Autotermination will
2
work as designed.
3
4
1 Simulates a device on the Internal 50 pin
connector. Use this switch only when a
2
device is connected to the internal 50 pin
connector that does not ground pin-22,
3
like another LSI Logic host adapter.
4
Simulates a device on the Internal 68 pin
1
connector. Use this switch only when a
2
device is connected to the internal 68 pin
connector that does not ground pin-50,
3
like another LSI Logic host adapter.
4
Forces termination ON the upper data
1
lines. Use this switch when a narrow 8-bit
2
device is connected to one of the 68 pin
connectors.
3
4
Simulates a device on the External 68 pin
1
connector. Use this switch only when a
device is connected to the external 68 pin
2
connector that does not ground pin-50,
like another LSI Logic host adapter.
3
4
2-25