Measurement Computing TempBook rev.3.0 - Manual (Page 12)

2-2 Installation, Configuration, and Calibration 11-16-00 TempBook User’s Manual
Termination Card and I/O Connectors
The TempBook/66 accepts all analog and digital I/O signals via a removable termination card (see figure).
This termination card has six screw terminal strips, a CJC temperature sensor, and input R/C filters which
also provide a bias current return path for the TempBook's instrumentation amplifier. The filters/bias
resistors are switch-selectable on a per channel basis.
TempBook Termination Card
Terminal strips J2 and J3 provide analog input signal connection. Note that the terminals are arranged in
differential pairs for easy thermocouple connection. These terminal strips also provide analog signal
common connections for convenient referencing of single-ended input signals.
Terminal strips J4 and J5 provide connections for the eight digital outputs and the TTL trigger input. These
terminal strips also provide ground connections for referencing digital signals. Terminal strips J6 and J7
provide connections for the eight digital inputs, the pacer clock output (OUT2), and the three counter/timer
(8254 P0) I/O signals.
The thermocouple or voltage connections should be made as shown in the following figure.
Analog Signal Connection
Note: When connecting thermocouple and other low-level signals in addition to high-level signals, the low-
level signals should be connected to the lowest numbered channels with connections following in ascending
order of signal magnitude.