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CH Tech EM405D user manual Fan And Temperature Control, C = TEMP - 281

Models: EM405D

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The function of each M-module trigger line is fully dependent upon the M-module. Refer to the particular M-module’s documentation for further details.

4.5 FAN AND TEMPERATURE CONTROL

The EM405D contains an on-board temperature sensor placed near the M-module positions. The current temperature inside the EM405D case can be determined by reading the Fan & Temperature Control register of the EM405D. The TEMP field inside this register represents the current temperature as read by the temperature sensor. To translate the TEMP value in to degrees Celsius use the following equation:

°C = (TEMP – 281) / 4.6

The temperature sensor is also read by the firmware and used to control the variable speed fan. When the fan is set to variable, the firmware constantly monitors the temperature and speeds up the fan as the temperature rises. The variable fan is designed to maintain a maximum 20° C rise in temperature from the ambient inlet air. The user may select the fan to remain full on at all times by setting the VARF bit in the Fan & temperature Control register to a ‘1’.

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CH Tech EM405D user manual Fan And Temperature Control, C = TEMP - 281

Contents

U S E R S M A N U A L E T H E R N E T M - M O D U L E C A R R I E R M O D E L E M 4 0 5 DManual Part No Copyright 2004 by C&H Technologies, Inc COPYRIGHTDOCUMENT REVISION NOTICE INTRODUCTION INSTALLATION TABLE OF CONTENTSGENERAL DESCRIPTION FUNCTIONAL DESCRIPTIONAPPENDIX B - WIRED ETHERNET DEFAULT SETTINGS APPENDIX A - CONNECTORSAPPENDIX C - WIRELESS ETHERNET WI-FI DEFAULT SETTINGS LIST OF FIGURES1.2 FEATURES AND SPECIFICATIONS 1.2.1 Key Features 1.0 GENERAL DESCRIPTIONFigure 1. EM405D Ethernet M-Module Carrier 1.1 PURPOSE OF EQUIPMENT CHARACTERISTICS 1.2.2 SpecificationsMAXIMUM RATINGS Parameter1.4 Mechanical 1.3 Electrical1.5 Environmental 1.6 Bus Compliance1.7 APPLICABLE DOCUMENTS IEEE-802.11b, Wireless Ethernet StandardIEEE-802.3 ANSI 8802.3, Ethernet Network Standard 2.2 HANDLING PRECAUTIONS 2.0 INSTALLATION 2.1 UNPACKING AND INSPECTION2.3 INSTALLATION OF M-MODULES Figure 2. M-module InstallationFigure 3. M/MA Configuration Diagram MODULE BMODULE A 3.0 FUNCTIONAL DESCRIPTION 3.1 GENERAL Figure 4. Functional Block Diagram 3.1.1 Embedded Controller3.1.2 Ethernet Interface ETHERNET3.1.3 M-module Interface 3.1.4 Power Conversion3.2 REAR PANEL Figure 5. Rear Panel3.3 FRONT PANEL Figure 6. Front PanelEM405D ETHERNET M-MODULE CARRIER Page 4.2 CONFIGURING THE ETHERNET INTERFACE 4.0 OPERATING INSTRUCTIONS 4.1 GENERAL4.2.1 IP Address The default gateway address is 4.2.4 Port Numbers The default subnet mask is 4.2.3 GatewayThe default port number for standard module access is 4.2.5 Wireless SettingsThe default setting is Auto-Scan The default settings are WEP disabled and WPA disabled4.2.6 Performing the Configuration - Wired Ethernet telnet x.x.x.x 4.2.7 Performing the Configuration - Wireless Ethernet Wi-Fi 4.2.7.1 Wed-based Configuration 4.3.1 Error Handling Table I. Command Summary4.3 COMMUNICATING WITH THE CARRIER AND M-MODULES Table II. Status Code SCSuccessful 0x00 The command completed successfully without error 4.3.3 Read Data command 4.3.2 Write Data command4.3.4 Block Access 4.3.4.1 Block Write command 4.3.4.2 Block Read command Table III. Register Summary 4.3.5 EM405D Configuration/Status RegistersOffset RegisterDevice Identification Reset Error & Manufacturer IdentificationHardware Version Firmware VersionFan Control & Temperature Status Reset & Trigger ControlFigure 7. EM405D Registers continued  Enclosure Temperature C = TEMP - 2814.4 CONTROLLING THE TRIGGERS C = TEMP - 281 4.5 FAN AND TEMPERATURE CONTROLPage Figure A-1. 9-Pin DSUB Connector PIN DESCRIPTION 1 +12V INPUT 2 +12V INPUT 3 +12V INPUT 4 TRIGGER OUT5 TRIGGER IN 6 GND 7 GND 8 GND 9 GND Page Table B-1. Ethernet Interface Default Settings Table B-1. Ethernet Interface Default Settings. continued OEM Configurable Pins Table B-1. Ethernet Interface Default Settings. continuedEmail Notification blankPage IP Settings Table C-1. Wireless Ethernet Configuration Default SettingsWireless LAN Settings Wireless Security SettingsPort Profile Settings Advanced Network SettingsTCP Server Settings TCP Client Settingsblank blankblank Page N O T E S Page READERS COMMENT FORM INSTRUCTIONS