Datex-Ohmeda S-5 Service Manual M-REC

Datex-Ohmeda

S/5TM Recorder Module, M-REC (Rev. 03)

Technical Reference Manual Slot

Datex-Ohmeda Inc.
3030 Ohmeda Drive
53707-7550 MADISON, WIS
USA
Tel. [phone], Fax. [phone]

www.us.datex-ohmeda.com

All specifications are subject to change without notice.

Document No. 800 1016-1

June 2001

Datex-Ohmeda Division,

Instrumentarium Corp.

P.O. Box 900, FIN-00031

DATEX-OHMEDA, FINLAND

Tel. [phone] Fax [phone]

www.datex-ohmeda.com

 Instrumentarium Corp. All rights reserved.

Table of contents

TABLE OF CONTENTS

Recorder Module, M-REC

TABLE OF CONTENTS i

TABLE OF FIgures i

Introduction 1

1 Specifications 2

2 Functional Description 3

2.1 Main components.....................................................................................................................................3

2.1.1 Recorder board ................................................................................................................................3

2.2 Module bus connector ..............................................................................................................................4

3 Service Procedures 5

3.1 General service information.......................................................................................................................5

3.2 Service check ...........................................................................................................................................5

3.2.1 Recommended tools ........................................................................................................................5

3.2.2 Recommended parts........................................................................................................................5

3.3 Disassembly and reassembly....................................................................................................................8

4 Troubleshooting 9

4.1 Troubleshooting chart ...............................................................................................................................9

4.2 Messages...............................................................................................................................................10

5Service Menu 11

6 Spare Parts 12

6.1 Spare parts list .......................................................................................................................................12

6.1.1 Recorder module, M-REC, Rev. 00 ..................................................................................................12

6.1.2 Recorder module, M-REC, Rev. 01 ..................................................................................................12

6.1.3 Recorder module, M-REC, Rev. 02 ..................................................................................................12

6.1.4 Recorder module, M-REC, Rev. 03 ..................................................................................................13

6.1.5 Front panel stickers for AS/3 modules (square buttons) ...................................................................13

6.1.6 Front panel stickers for S/5 modules (round buttons).......................................................................13

7 Earlier Revisions 15

APPENDIX A 17

Service Check FORM A-1

TABLE OF FIGURES

Figure 1 Recorder Module, M-REC......................................................................................................................1

Figure 2 Recorder board block diagram ..............................................................................................................3

Figure 3 Module Bus connector (X1) pin layout....................................................................................................4

Figure 4 Exploded view of Recorder Module box and Recorder Module...............................................................12

Document No. 800 1016-1

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Datex-Ohmeda A/5 monitors

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Document No. 800 1016-1

INTRODUCTION

This section provides information for maintenance and servicing of the Recorder Module, M-REC.
The Recorder Module is a double width plug-in module designed for use with S/5 monitors. The
Recorder Module provides real time printing of waveform and numerical data, and trend data.

The S/5 Compact Monitos may include a built-in recorder. The built-in recorder is technically the
same as the Recorder Module.

NOTE: Printings on thermal paper may be destroyed when exposed to light, heat, alcohol etc. Take
a photocopy for archive.

NOTE: The Recorder Module, M-REC, cannot be used in the Extension Frame, F-EXT4.

Recorder Module, M-REC

Figure 1 Recorder Module, M-REC

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Datex-Ohmeda A/5 monitors

1 SPECIFICATIONS

Module size, W x D x H 75 x 180 x 112 mm / 3.0 x 7.1 x 4.4 in

Module weight 0.9 kg/ 2 lbs

Power consumption 3 W

Principle Thermal array

Print resolution
Vertical 8 dots/mm (200 dots/inch)
Horizontal 32 dots/mm (800 dots/inch) at a speed of 25 mm/s and slower

Paper width 50 mm, printing width 48 mm

Traces Selectable 1, 2, or 3 traces

Print speed 1, 6.25, 12.5, 25 mm/s

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Recorder Module, M-REC

2 FUNCTIONAL DESCRIPTION

2.1 Main components

2.1.1 Recorder board

The function of the recorder board is to establish an interface between the recorder unit and main
CPU board in the monitor. The three front panel keys are connected to the recorder unit via the
recorder board. The recorder unit and the recorder board are connected together with a small
connector board and 12-pin flex-strip cable.

External Communication

Communication with the main CPU board is via a +5 V CMOS level RS232 serial interface, with an
RS485 reset.

Reset The differential RS485 reset from the module bus generates a Recorder Unit reset signal on the

Recorder Board. The Recorder Board also generates a power-up-reset, whose time constant is
approximately 0.1 second. The Recorder Unit reset signal is therefore active when either the
Module Bus RS485-reset or the power-up-reset is active.

+5 V priority The recorder unit supply voltage, +15 VREC, is switched on after +5 V is present.

Front panel keys The recorder board can read the three front panel keys and pass their status on to the main CPU

board.

For protect the keypad signals from static discharges, zener diodes and series resistors are used.
Separate pull-up resistors are not needed because pull-up resistors connecting the keypad input
signals to +5 V are fitted inside the recorder.

Recorder Board

Module
mother
board

Front
panel
membrane
switch

Power-up
reset

RS-485-Reset

Serial interface

+15 V

+ 5 V

Switches

Reset
logic

Reset

Recorder

+ 15VREC

Figure 2 Recorder board block diagram

3

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2.2 Module bus connector

13

25

1

14

Figure 3 Module Bus connector (X1) pin layout

Table 1 Module Bus connector (X1) pin description

Pin No I/O Signal

1 I RESET_RS485

2 - Not connected

3 I +15 VDIRTY

4 - Not connected

5 - Not connected

6 - Not connected

7 - Ground & Shield

8 I -RESET_RS485

9 O CTSB

10 I RTSB

11 O RXDB

12 I TXDB

13 - Ground & Shield

14 - Not connected

15 I GroundDIRTY

16 - Not connected

17 - Not connected

18 - Not connected

19 - Not connected

20 - Not connected

21 - Not connected

22 - Not connected

23 - Not connected

24 I +5 VDC

25 I +5 VDC

4

Document No. 800 1016-1