ADLINK PCI-9810 - Manual (Page 24)

12 Hardware Information
2.3 Input Settings
This section describes the characteristics and settings of the PCI-
9812/9810 inputs.
Analog Input
The PCI-9812/9810 has four analog input channels which are
connected through the J1 to J4 connectors. The input impedance
and input amplitude range can be changed through soldering the
gap switches on the board (refer to PCI-9812/9810 layout). A
solder gap switch consists of two copper pads. The switch can be
turned on by soldering the copper pads. As all four channels use
the same method to configure their input characteristics, only
channel 0 is discussed here. There are two solder gap switches
labeled as C0LO (channel 0 low impedance) and C05V (channel 0
5 V input) to setup the input of channel 0. Refer to Figure 2-1.
C0LO C05V Input Impedance Input Range
Open Open High (~15 M
Ω)
±
1 V
Open Close 1.25 K
Ω
±
5 V
Close Open Low (50
Ω)
±
1 V (default)
Close Close Low (50
Ω)
±
5 V
Table 2-3: Analog Input