Keithley STA-3108A1 Quick Start Manual
Keithley STA-3108A1 Quick Start Manual

Keithley STA-3108A1 Quick Start Manual

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Figure 1
Model STA-3108A1

Introduction

This document contains information necessary to successfully install your hardware.
The STA-3108A1 is not intended for use in circuits carrying voltages in excess of 30V RMS, 42.4V peak,
or 60VDC.

Descriptions

The screw terminals on the STA-3108A1 screw terminal connector let you connect field wiring to another board such as a
KPCI-3108 board using an IEEE-1284 C-C cable. The screw terminals are labeled from 1 to 36 and correspond directly to the
functions of the pins on the main I/O connector on the KPCI-3108 board. For example, if pin 24 is assigned to the analog
function OP0, use screw terminal 24 to attach a hardware output 0. Refer to the User's Guide for the board to which you are
connecting the STA-3108A1 for detailed wiring information.
The STA-3108A1 has a 50-pin connector that maps the required signals to enable the use of the EXP1800 (Channel Expansion,
16 Channel Multiplexer Board) with the KPCI-3108.
The KPCI-3108 does not output mux control signals on [XOP0..XOP4] in all software modes. When using EXP-1800, the
KPCI-3108 outputs must be configured for mux control. For the STA-3108A1 functional specifications, please see the
STA-3108A1 user manual. For the EXP-1800 functional specifications, please see the EXP-1800 user manual.
The STA-3108A1 panel has rubber feet and mounting holes.
WARNING
Model STA-3108A1

Packing List

PA-666 Rev. A / 8-99

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Summary of Contents for Keithley STA-3108A1

  • Page 1 Descriptions The screw terminals on the STA-3108A1 screw terminal connector let you connect field wiring to another board such as a KPCI-3108 board using an IEEE-1284 C-C cable. The screw terminals are labeled from 1 to 36 and correspond directly to the functions of the pins on the main I/O connector on the KPCI-3108 board.
  • Page 2 CAUTION Although the STA-3108A1 is rated for 60 volts peak-to-peak, the board to which it is connected may be rated for a much lower voltage. For example, the KPCI-3108 analog inputs can only tolerate 35 volts peak without damage, and digital I/O will be damaged by voltages above +5V.
  • Page 3 Installation As described in the International Electrotechnical Commission (IEC) Standard IEC 664, the signal terminals are Installation Category I and must not be connected to mains. Do not connect switching cards directly to unlimited power circuits. They are intended to be used with impedance limited sources.
  • Page 4 • Do NOT connect the STA-3108A1 to voltages above those tolerated by other boards in the system. Although the STA-3108A1 is rated for 60 volts peak-to-peak, the board to which it is connected may be rated for a much lower voltage.
  • Page 5 Signal Signal XOP3/MUX7 XOP2/MUX6 XOP1/MUX5 XOP0/MUX4 GNDD CH15/CH7LO CH14/CH6LO CH13/CH5LO CH12/CH4LO CH11/CH3LO CH10/CH2LO CH9/CH1LO CH8/CH0LO GNDA ODAC1 GNDA ODAC0 XOP4/GEXT Note: Signal names on the STA-3108A1 50-pin connector are based on signal names from the 50-pin connector on the EXP-1800.
  • Page 6 Your STA-3108A1 screw terminal panel is shipped with the hardware necessary for mounting. To mount the STA-3108A1: • Place the STA-3108A1 at its operating location with the rubber feet on the mounting surface. Use the four (4) screws to secure the panel.

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