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MultiVOIP Gatekeeper User Guide 63
Appendix C - SBC Configuration Details
Appendix C - SBC Configuration Details
Flash BIOS Update
BIOS updates are revised versions of the BIOS that have been modified to remedy known bugs. When
necessary, use the program Awdflash.exe on your System CD-ROM to update the system BIOS and
the VGA BIOS. Check periodically with MultiTech to see if a new flash BIOS update is available.
Watchdog Timer Configuration
The watchdog timer does not run constantly. It must be started in DOS Debug mode or from another
application program, customized for this purpose, that runs on the system. The watchdog timer is
especially useful for remote rebooting of the PC.
The watchdog timer is defined at I/O port 0443H. To enable the watchdog timer, write I/O port
0443H, then the system will reset itself. To disable the function, write I/O port 0441H and the system
will stop the Watchdog timer.
Since the timers intervals have a tolerance of 25%, you should specify that the timer be refreshed
about once every second. To program your watchdog timer, follow these steps:
Watchdog enable program:
MOV AX, 000FH (choose the values you need; start from 0)
MOV DX, 0443H
OUT DX, AX
Watchdog disable program:
MOV AX, 000FH (this value can be ignored)
MOV DX, 0441H
OUT DX, AX
The Watchdog Timer control table is as follows:
Level Value Time/sec Level Value Times/sec
1 F 0 9 7 16
2E210618
3D411520
4C612422
5B813324
6 A 10 14 2 26
7 9 12 15 1 28
8 8 14 16 0 30
Green PC Function
The Gatekeeper is equipped with a green function that enables it to operate using reduced electrical
power when the machine is inactive. When in green mode, the Gatekeeper slows down and shuts down
certain computer functions in order to reduce power consumption. There are three reduced-power
operating modes (presented in order of increasing power savings):
(1) CPU Doze Mode,
(2) System Standby Mode,
(3) System Suspend Mode .
By default, however, the green function is turned off.
- MultiVOIP Gatekeeper 1
- Model MVPGK1 1
- Hardware User Guide 1
- User Guide 2
- Contents 3
- 6 Troubleshooting 35 4
- Appendices 45 4
- 1 Introduction/Description 5
- System Overview 6
- Technical Specifications 7
- SBC (Single Board Computer) 8
- Display: 9
- NIC Board (EN10100 PCI Card) 10
- Chapter 1 - System Overview 11
- 2 Installation and Setup 13
- Rack Mounting 15
- Cable Connections 15
- NIC Cabling 16
- SBC Board Cabling 16
- Powering Up 17
- 3 Single Board Computer 19
- Introduction 20
- Component Locations 21
- 4 PCI NIC Board 23
- About PCI Bus 25
- Features 25
- LED Indicators 26
- 5 Hardware Removal/ 27
- Replacement 27
- Card Cage Removal/Replacement 29
- GateKeeper 30
- Board Removal and Replacement 31
- Removing NIC Board 32
- 6 Troubleshooting 35
- Hardware Troubleshooting 36
- Chapter 6 - Troubleshooting 37
- Diagnostic Tests 38
- Calling Technical Support 39
- 7 Service, Warranty, and 40
- Technical Support 40
- Limited Warranty 41
- Ordering Accessories 42
- Tech Support 43
- About the Internet 43
- Appendices 44
- Pin Identification 45
- 6-Pin Circular Jack 46
- SBC Onboard Connectors 48
- Printer Port Connector 49
- COM 2 Port Connector 50
- Hard Disk Connector 50
- COM2 Connector 51
- External Keyboard Connector 51
- Reset Connector 51
- Floppy Disk Drive Connector 51
- Hard drive Connector 52
- Hard drive LED Connector 53
- Power Connector 53
- Expansion Slots 54
- ISA Bus Pin Assignments 55
- How to Set Jumpers 56
- Jumper Settings 57
- JP4 : CPU Clock Selection + 58
- Table B-4. DMA Channels Map 61
- Table B-5. Memory Map 61
- Table B-6. I/O Map 61
- Green PC Function 62
- Power Saving Block Diagram 63
- CPU Doze Mode 63
- System Standby Mode 63
- System Suspend Mode 63
- Award BIOS Setup 64
- Entering Setup 65
- SBC Configuration 66
- VGA Driver Utilities 67
- The BIOS Features Setup Menu 69
- Virus Warning 70
- Quick Power On Self Test 70
- Boot Sequence 70
- Boot Up Floppy Seek 70
- Boot Up NumLock Status 71
- Boot Up System Speed 71
- Gate A20 Option 71
- Typematic Rate Setting 71
- Typematic Rate (Chars/Sec) 71
- Chipset Features Setup 72
- DRAM Settings 73
- Cache Features 73
- PCI and IDE Configuration 73
- Power Management Setup 74
- Doze Mode 75
- Standby Mode 75
- PCI IRQ Activated by 76
- PCI IDE IRQ Map to 76
- Onboard PCI SCSI Chip 76
- Load BIOS Defaults 76
- Load Setup Defaults 76
- Integrated Peripherals 77
- Password Setting 77
- IDE HDD Auto Detection 78
- HDD Low Level Format 79
- Save & Exit Setup 80
- Canadian Limitations Notice 82
- Power Supply Unit 84
- Communication Module 84
- Carrier Card Expansion Card 84
- SITS/82/005S/D 85
- Compliance with BS6328 Part 1 85
- S0000122, Rev B 87
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