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MIC-3921
Intelligent monitoring and Alarm Module

MIC-3921 Introduction

The MIC-3920/MIC-3921 is an intelligent PC-system monitoring module. It can detect abnormal system conditions and generate alarm outputs, allowing users to take action before system failure. With the MIC-3920/MIC-3921, the MIC-3000 series system is changed into an intelligent, self-diagnostic system, increasing the reliability of critical application, such as in communications or computer telephony.

The alarm module comes in two versions: the MIC-3920 and the MIC-3921. The MIC-3920, using front panel LEDs for status display, is a 3U high, 2-slot (8TE) wide module which can be inserted into a 3U CompactPCI chassis such as the MIC-3001/8. The MIC-3921, equipped with a high-brightness vacuum fluorescent display and a control keypad, can be inserted into the MIC-3021/8 top reserved device bay.


MIC-3921 Features

  • Eight 6U CompactPCI slots
  • Monitoring: +3.3 VDC , +5 VDC , +12 VDC, -12 VDC system bus voltages
  • Four fan sense inputs for fan speed monitoring
  • Three temperature sensor inputs
  • One ower good signal inputs for power supply monitoring
  • Three channels of relay outputs for external alarm connection
  • One serial port can be set as RS-232 or RS-485 port, supporting modem output
  • Three configurable alarm levels: critical, major, minor
  • Audible alarm with three sound effects
  • On-board battery backup
  • Built-in watchdog timer for self-detection


MIC-3921 Specification

General Specifications
  • Input: System
    Voltage:
    +5 V: 0 ~ +6.8 V
    +3.3 V: 0 ~ +4.8 V
    -12 V: 0 ~ -16.32 V
    +12 V: 0 ~ +16.32
    Voltage accuracy: 0.5% of FSR
  • Temperature sensors:
    Temperature Sensor 1 (on board): 0 ~ 60C (32 ~ 140F)
    Temperature Sensors 2 and 3: -30 ~ 125C (-22 ~ 257F)
    Temperature accuracy: C
  • Fan monitor:
    Fan Sensors 1, 2, and 4: 700 ~ 10000 rpm
    Fan Sensor 3: 2800 ~ 40000 rpm
  • Power good input:
    Hi: > 2.4 V
    Lo: < 0.8 V
  • Relay digital output: NC (normal closed) and NO (normal open)
    Power rating:
    AC: 125 V @ 0.3 A
    DC: 100 V @ 0.3 A, 30 V @ 1 A
  • Serial port:
    RS-232 or RS-485 (selectable by jumper)
    Baud rate: 1200, 2400, 4800, 9600, 19200 bps
    Board ID: 1 ~ 255 (0 for configuration only)
  • Battery charge time: 24 hours
    Battery capacity: 1200 mA-H (full charged, for 0.5 ~ 1 hr operation, depending on the outputs used)
  • Operating temperature: 0 ~ 60 C (32 ~ 140F)
  • Storage temperature: -20 ~ 70 C (-4 ~ 165F)

MIC-3921 Ordering Information

  • MIC-3920 : Intelligent system monitoring and alarm module with LED indicators for 3U system ,and utility CD-ROM Disc
  • MIC-3921 : Intelligent system monitoring and alarm module with vacuum fluorescent display and keypad,and utility CD-ROM Disc


MIC-3921
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