User`s guide

Getting Started
•
19
2.11 Jumpers Setting
Digital I/O cards often operate in noisy environments and may suffer
electrostatic discharge or transient voltage up to several 1000 volts. To
protect the system from potential damage, the PCI-7433 have implemented
protection circuits on its input channels. Eight jumpers on the PCI-7433 are
used to enable or disable the transient voltage suppressors. Each jumper is
responsible for up to 8 digital input channels. The following table and figure
illustrates the jumper settings. Please note that these setting are only
available for the PCI-7433.
Jumper Isolated digital input channel
J1 0 ~ 7
J2 8 ~ 15
J3 16 ~ 23
J4 24 ~ 31
J5 32 ~ 39
J6 40 ~ 47
J7 47 ~ 55
J8 56 ~ 63
Table 4. PCI-7433 jumper setting table
Figure 10: Simplified digital input circuit diagram