Datex-Ohmeda S-5 Service Manual F-EXT4

Datex-Ohmeda

S/5™ Extension Frame, F-EXT4 (Rev. 03)

S/5™ Extension Module, M-EXT (Rev. 02)

Technical Reference Manual

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. 8001007-1

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

Extension Frame, F-EXT4 and Extension Module, M-EXT

TABLE OF CONTENTS i
Introduction 1
1 Specifications 2

1.1 General specifications..............................................................................................................................2

2 Functional Description 3

2.1 Connectors and signals.............................................................................................................................4

2.1.1 Module bus connector......................................................................................................................4

2.1.2 Other connectors..............................................................................................................................5

3 Service Procedures 6

3.1 Service check...........................................................................................................................................7

3.1.1 Recommended tools........................................................................................................................7

3.2 Disassembly and reassembly..................................................................................................................11

3.2.1 Changing the fuse...........................................................................................................................11

4 Troubleshooting 12

4.1 Troubleshooting chart.............................................................................................................................12

5Service menu 13
6 Spare Parts 14

6.1 Spare parts list.......................................................................................................................................14

6.1.1 Extension Frame, F-EXT4 Rev. 01 ....................................................................................................14

6.1.2 Extension Frame, F-EXT4 Rev. 02 ....................................................................................................15

6.1.3 Extension Frame, F-EXT4 Rev. 03 ....................................................................................................15

6.1.4 Extension Module, M-EXT Rev. 01, M-EXT Rev. 02............................................................................16

6.1.5 Stickers.........................................................................................................................................16

7 EARLIER REVISIONS 17

APPENDIX A

19

Service check FORM A-1

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Datex-Ohmeda S/5 monitors

ii

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INTRODUCTION

The Extension Frame, F-EXT4 is designed for use with S/5 monitors and provides four additional
module slots, and enables taking the measuring modules near to the patient. The extension frame,
F-EXT4 is connected to the monitor with the extension module, M-EXT, which reserves one module
slot.

NOTES:

• Only one F-EXT4 can be connected to the monitor at a time.

• The following modules cannot be used in the F-EXT4

• Do not use identical modules simultaneously in the extension frame and in the host

Extension Frame, F-EXT4 and Extension Module, M-EXT

− Recorder Module, M-REC

− Memory Module, M-MEM

− Interface Module, M-INT

− Compact Airway Modules, M-Cxxxxx

monitor.

• When the extension frame is used with the S/5 Anaesthesia Monitor the F-CU8 must be of

rev. 03 or later.

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Datex-Ohmeda S/5 monitors

1 SPECIFICATIONS

1.1 General specifications

Frame size, (W × D × H) 160 × 205 × 137 mm
(w/ module) 160 × 228 × 137 mm

Frame weight 1.3 kg
Power consumption 35 W (max at input voltage of +32 V) with

Module size, (W × D × H) 37 × 180 × 112 mm/1.5 × 7.1 × 4.4 in

ESTP and NIBP modules inserted and NIBP pump working.

2

Document No. 8001007-1

2 FUNCTIONAL DESCRIPTION

Four D-Connectors for Modules

Module Mother Board

OVERVOLTAGE
PROTECTION
FOR OUTGOING
VOLTAGES

Extension Frame, F-EXT4 and Extension Module, M-EXT

+32 V

OVERVOLTAGE

AND UNDERVOLTAGE

+32 V

+15 Vd

POWER

+15 V SWITCHING

PROTECTION

SOFT

START

SUPPLY

+5 V

DC/DC

CONVERTER

REMOTE ON/OFF

CONTROL

-15 V

+15 Va

DATA

Monitor Frame

Figure 1 F-EXT electronics unit block diagram

The Extension Frame, F-EXT4, contains the module mother board, power supply board, and space
for four single-width or two double-width modules.

The electronic unit receives +32 V from the monitor frame and generates from it necessary
operational voltages for the inserted modules. The received +32 V is passed through fuse (F1) and
filtered and led to power supply components.

There is overvoltage and undervoltage protection for input voltage, the input voltage is set so that it
can vary between +18.5 V and +36.0 V.

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Datex-Ohmeda S/5 monitors

The purpose of the soft start is to raise input voltage +32 V slowly (a bout 1 second) to the
maximum value so that capacitors in power supply components' circuits have time to get charged.
This enables extension frame to be connected to monitor frame during operation.

There is also overvoltage protection for outgoing supply voltages. The overvoltage limits
are +5.95 V (+5 V) and +17.50 V (+15 Vd).

Signal Routes

There are two connectors which are used for data communications ( RS485), for supply voltages
(+32 V, +15 Vd, +15 Va, and +5 V), for grounds connections (GNDD, GND&SHIELD) between the
power supply board and module mother board.

2.1 Connectors and signals

2.1.1 Module bus connector

13

25

1

14

Module bus connector (X1)

Pin No I/O Signal

1 I RESET_RS485*
2 I -15 VDC*
3 I +15 VDIRTY*
4 I +15 VDC*
5 I/O -DATA_RS485*
6 I/O DATA_RS485*
7 Ground & Shield*
8 I -RESET_RS485*
9 I CTSB
10 O RTSB
11 I RXDB
12 O TXDB
13 Ground & Shield*
14 I +32 VDIRTY*
15 I GroundDIRTY*
16 I CTSC
17 O RTSC
18 I RXDC
19 O TXDC
20 ON/STANDBY*
21 BIT0IN*
22 RXDD_RS232
23 TXDD_RS232
24 I +5 VDC*
25 I +5 VDC*

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* Used in the Extension Frame and in the Extension Module