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Acer Power FH Aspire T690/Power FH Service Guide - Page 74

Connecting the Optional Devices, COM2: Onboard serial port header

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Connecting the Optional Devices COM2: Onboard serial port header Pin Signal Name Function 1 DCDB Data Carrier Detect 2 SINB Serial Input 3 SOUTB UART B Serial Output 4 DTRB UART B Data Terminal Ready 5 GND Ground 6 DSRB Data Set Ready 7 RTSB RART B Request to Send 8 CTSB Clear to Send 9 RI Ring Indicator 10 Key No pin Chapter 5 71

Section	Page
Cover	1
TOC	6
System Specifications	7
Features	7
Mainboard Placement	10
Block Diagram	12
Aspire T690 Front Panel	13
Aspire T690 Rear Panel	14
AcerPower FH Front Panel	15
AcerPower FH Rear Panel	16
System Peripherals	17
Mouse (PS/2 or USB, manufacturing option)	17
Keyboard (PS/2 or USB, manufacturing option)	17
Speakers	18
Acer eRecovery	19
Create backup	19
Restore from backup	19
Create factory default image CD	19
Re-install bundled software without CD	20
Change Password	20
Acer disc-to-disc recovery	21
Restore without a Recovery CD	21
Multilingual operating system installation	21
Hardware Specifications and Configurations	22
Power Management Function (ACPI support function)	27
System Utilities	28
About the Setup Utility	28
The Standard Configuration	28
Entering the Setup Utility	29
BIOS Navigation Keys	29
Using BIOS	29
Product Information	30
Standard CMOS Features	31
Advanced BIOS Features	33
Advanced Chipset Features	36
Integrated Peripherals	38
Power Management Setup	41
PnP/PCI Configurations	43
PC Health Status	44
Frequency Control	45
Load Fail-Safe Defaults Option	46
Load Optimized Defaults Option	46
Set Supervisor/User Password	46
Save & Exit Setup	46
Exit without Saving	46
Machine Disassembly and Replacement	47
General Information	48
Before You Begin	48
Disassembly Procedure	49
Aspire T690 Disassembly Procedure	50
AcerPower FH Disassembly Procedure	59
Troubleshooting	67
Jumper and Connector Information	68
Main Board Placement	68
Jumper Setting	70
Setting Jumper	70
Checking Jumper Settings	71
Connecting Components	72
Connecting the Optional Devices	74
Rear I/O Panel Connectors	76
FRU (Field Replaceable Unit) List	78
Exploded Diagram	79

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