Omega Products OME-DB-1825 Installation Manual

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User’s Guide

OME-DB-8025/8125/8225/8325/1825

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WARNING: These products are not designed for use in, and should not be used for, patient-connected applications.

TABLE OF CONTENTS

OME-DB-8025

1. ACCESSORIES .....................................................................................................................4

2. OME-DB-8025 LAYOUT........................................................................................................4

3. PIN ASSIGNMENT.................................................................................................................5

4. WIRING DIAGRAM ................................................................................................................6

5. CAPACITOR FILTER & VOLTAGE DIVIDER & CURRENT INPUT ....................................6

5.1. INPUT R/C FILTERING ........................................................................................................6

5.2. VOLTAGE DIVIDER ..............................................................................................................7

5.3. CURRENT INPUT.................................................................................................................7

OME-DB-8125

1. ACCESSORIES ........................................................ERROR! BOOKMARK NOT DEFINED.

2. OME-DB-8125 LAYOUT........................................................................................................8

3. PIN ASSIGNMENT.................................................................................................................9

4. WIRING DIAGRAM ..............................................................................................................10

5. CAPACITOR FILTER & VOLTAGE DIVIDER & CURRENT INPUT ..................................10

5.1. INPUT R/C FILTERING ......................................................................................................10

5.2. VOLTAGE DIVIDER ............................................................................................................11

5.3. CURRENT INPUT...............................................................................................................11

OME-DB-8225

1. ACCESSORIES ...................................................................................................................12

2. OME-DB-8225 LAYOUT......................................................................................................12

3. CJC JUMPER SETTING......................................................................................................13

3.1. SINGLE-ENDED MODE......................................................................................................13

3.2. DIFFERENTIAL MODE........................................................................................................13

4. WIRING DIAGRAM ..............................................................................................................14

4.1. SINGLE - ENDED CONNECTION .........................................................................................14

4.2. DIFFERENTIAL CONNECTION.............................................................................................14

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5. CJC OUTPUT.......................................................................................................................15

6. OPEN DETECT AND INPUT FILTERING ...........................................................................16

7. VOLTAGE DIVIDER & CURRENT INPUT ..........................................................................17

7.1. VOLTAGE DIVIDER ...........................................................................................................17

7.2. CURRENT INPUT...............................................................................................................17

8. CN3 COUNTER TIMER & D/A OUTPUT CONNECTOR ....................................................18

OME-DB-8325

1. ACCESSORIES ........................................................ERROR! BOOKMARK NOT DEFINED.

2. OME-DB-8325 LAYOUT......................................................................................................19

3. WIRING DIAGRAM ..............................................................................................................20

4. CAPACITOR FILTER & VOLTAGE DIVIDER & CURRENT INPUT ..................................20

4.1. INPUT R/C FILTERING ......................................................................................................20

4.2. VOLTAGE DIVIDER ............................................................................................................21

4.3. CURRENT INPUT...............................................................................................................21

OME-DB-1825

1. PCB LAYOUT FOR CONNECTING TO OME-ISO-AD32:..................................................22

2. PCB LAYOUT FOR CONNECTING TO OME-PCI-1802: ...................................................24

OME-DB-8025/8125/8225/8325/1825 Terminal Board User’s Manual ----

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OME-DB-8025 TERMINAL
BOARD

1. Accessories

The OME-DB-8025 is the cost-effective universal screw terminal

board for A/D cards with 20-pin connectors.

2. OME-DB-8025 Layout

NOTE:

(1) CNA 20 pin connector for A1 to A20

(2) CNB 20 pin connector for B1 to B20

Resistor & Capacitor reserved for user

CNB CNA

CND

CNC

OME-DB-8025

OME-DB-8025/8125/8225/8325/1825 Terminal Board User’s Manual ----

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3. Pin Assignment

1 A1 1 B1
2 A2 2 B2
3 A3 3 B3
4 A4 4 B4
5 A5 5 B5
6 A6 6 B6
7 A7 7 B7
8 A8 8 B8
9 A9 9 B9
10 A10 10 B10
11 A11 11 B11
12 A12 12 B12
13 A13 13 B13
14 A14 14 B14
15 A15 15 B15
16 A16 16 B16
17 A17 17 B17
18 A18 18 B18
19 A19 19 B19
20 A20 20 B20

OME-DB-8025/8125/8225/8325/1825 Terminal Board User’s Manual ----

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4. Wiring Diagram

5. Capacitor Filter, Voltage Divider & Current input

5.1. Input R/C Filtering

Input filtering is provided on the OME-DB-8025 by installing a
resistor and a capacitor on the desired input channel.

For example:

1.6 KHz Low pass filter
Equation: f3db = 1/(2 * Pi * R * C)
The steps are shown below

Step1. Change R1A (0Ω) resistor to 10 KΩ.
Step2. Install 0.01 uF Capacitor on C1.

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5.2. Voltage Divider

If the input signal voltage is greater than the A/D card input range a
voltage divider may be used. The OME-DB-8025 provides 2
resistors on each input channel to divide the input voltage signal.
The steps are shown below

Step1. Change R1A (0Ω) resistor to 10 KΩ (0.1%).
Step2. Install 10 KΩ(0.1%) on R1B. (Voltage Signal /2)

V/n : n = R1A/(R1A+R1B)

5.3. Current input

If you want to measure a current signal, you have to install a 250Ω

resistor in

Current signal range: 0 to 20 mA

R1B changed to 250

Voltage = 20 mA x 250Ω = 5V ; Range = 0 to 5V

Formula:

input voltage signal = input current signal x 250Ω

R1B. The steps are shown as below

Ω

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OME-DB-8125 TERMINAL
BOARD

1. Accessories

The OME-DB-8125 is the cost-effective universal screw terminal
board for A/D cards with a 20-pin connector or 37-pin D-Sub
connectors.

2. OME-DB-8125 Layout

NOTE:

(3) CN5 37-pin D-Sub connector for A1 to A20 & B1 to B20

(4) CN1 20-pin connector for A1 to A20

(5) CN2 20-pin connector for B1 to B20

37-pin D-Sub connector

CN2(B1-B20)

CN1(A1-A20)

CN5

CN4

Input Filter Capacitor

OME-DB-8125

Input Filter Capacitor

CN3

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