CIO-TERM100&CIO-TERM100/DST
User’s Manual

Revision 1AMarch, 2001
©Copyright 2001, Measurement Computing Corporation

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HM CIO-TERM100_DST.lwp

1 INTRODUCTION & PHYSICAL DESCRIPTION
The CIO-TERM100 and its variant CIO-TERM100/DST are 100-pin screw terminal boards intended foruse with high-density digital I/O boards. Each has two, 50-pin male IDC connectors that accept ourC50FF-# cables. The screw terminals will accept 12 to 22 AWG wire. See Figures 1-1 and 1-2 for board
connector vs. terminal strip layouts.

Figure 1-1. CIO-TERM100 Board Layout

Figure 1-2. CIO-TERM100/DST Board Layout

1The board has 14 open mounting positions where 8-pin, 7-resistor Single Inline Packages (SIPs) can beinstalled when pull-up (or pull-down) resistors are necessary or desirable. The common terminals on theSIPs are all common to each other on the board. The board connection point is labeled “POWER”.
Thus, if the POWER point on the board is tied to +5VDC, any SIP installed and jumper-wired to screw
terminals will have those pins pulled high (Figure 1-3).
Alternatively, if the POWER point is tied to Ground, any (and all) installed SIPs resistors will pull theirassociated screw terminals to ground.
We recommend using 2.2Kohm resistors for pull-up or pull-down. You can obtain these from us: the partnumber is 2.2K*7PU.
NOTE: SIPs are not connected to screw terminals by board etch. After a SIP is installed, you must
install jumpers to each resistor from the screw terminals as required.

Figure 1-3. SIP Installation
Most boards that you would use this terminal board with have SIP locations also. Either location can beused with equal efficiency. However, it can be useful to have both. If one or m ore digital lines do not
require termination, there is an adv antage to using the resistor locations on the CI O-TERM100 since theresistors are individually jumpered to each digital IO line.
If you are unfamiliar with pull-up/pull-down resistor theory, refer to the manual for the Digital I/O board.
See Figure 1-4 and 1-5 for schematics of the CIO-TERM100 and CIO-TERM100/DST terminal boards.

2

Figure 1-4. CIO-TERM100 Schematic3

Figure 1-5. CIO-TERM100/DST Schematic

4

EC Declaration of Conformity
We, Measurement Computing Corp., declare under sole responsibility that the product:
CIO-TERM100
CIO-TERM100/DSTPart Number

Screw Terminal Board
Screw Terminal Board with Detachable Screw Terminals
Description

to which this declaration relates, meets the essential requirements, is in conformity with, and CE marking has been
applied according to the relevant EC Directives listed below using the relevant section of the following EC standards
and other normative documents:
EU EMC Directive 89/336/EEC: Essential requirements relating to electromagnetic compatibility.
EU 55022 Class B: Limits and methods of measurements of radio interference characteristics of information
technology equipment.
EN 50082-1: EC generic immunity requirements.
IEC 801-2: Electrostatic discharge requirements for industrial process measurement and control equipment.
IEC 801-3: Radiated electromagnetic field requirements for industrial process measurements and controlequipment.
IEC 801-4: Electrically fast transients for industrial process measurement and control equipment.
Carl Haapaoja, Director of Quality Assurance

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