Configuration
CP690
Page 3 - 12
© 2002 PEP Modular Computers GmbH
ID 20955, Rev. 03
3.2
Jumper Settings
The secondary side of the PCI-to-PCI bridge (the PMC side) may be configured either for a
3.3V or a 5V signalling environment. Configuration is effected by setting the resistors R57 or
R56.
The default setting is indicated by italics
Table 3-10:Resistor Settings
R57
R56
Functions
Closed
Open
3.3V signalling
Open
Closed
5V signalling
Important!
No other jumper settings are permitted as serious damage or misoperation will
result.
Note:
Care must be taken to ensure correct voltage configuration. Using an incorrect
signalling voltage may damage the PMC module.