To configure the serial ports:
1.
Locate the serial port and jumper.
2.
Place jumpers on the appropriate pins. (See
Table 2-3 Configuring Serial Port Power
to determine the appropriate pins.)
CAUTION:
An unsupported configuration can cause severe equipment damage. Carefully
verify COM Port Jumper locations and supported configurations before you configure a serial
port. See
Figure 2-4 Serial Port Jumper Locations on the System Board on page 13
2-3 Configuring Serial Port Power on page 15
for Jumper locations and supported
configurations.
Table 2-1
COM Port Default Configuration
pin #
COM1
COM2
COM3
COM4
pin 1
DCD
+5V
+5V
+5V
pin 2
RXD
RXD
RXD
RXD
pin 3
TXD
TXD
TXD
TXD
pin 4
DTR
DTR
DTR
DTR
pin 5
GND
GND
GND
GND
pin 6
DSR
DSR
DSR
DSR
pin 7
RTS
RTS
RTS
RTS
pin 8
CTS
RXD (TTL)
CTS
CTS
pin 9
RI
TXD (TTL)
RI
RI
Table 2-2
COM Port Functionality
pin #
COM1
(Standard)
COM2–Cable
Connection
(Customized)
COM3
(Customized)
COM4
(Customized)
pin 1
DCD
+5V/DCD
+5V/+12V/DCD
+5V/+12V/DCD
pin 2
RXD
RXD/TXD/RXD (TTL)/
TXD (TTL)
RXD/TXD
RXD/TXD
pin 3
TXD
TXD/RXD/TXD (TTL)/
RXD (TTL)
TXD/RXD
TXD/RXD
pin 4
DTR
DTR/+5V
DTR/+5V/+12V
DTR/+5V/+12V
pin 5
GND
GND
GND
GND
pin 6
DSR
DSR
DSR
DSR
pin 7
RTS
RTS
RTS
RTS
pin 8
CTS
RXD/TXD/RXD (TTL)/
TXD (TTL)
CTS
CTS
pin 9
RI
TXD/RXD/TXD (TTL)/
RXD (TTL)
RI
RI
14
Chapter 2 Hardware Changes
Содержание t505
Страница 1: ...Troubleshooting Guide HP t505 Flexible Thin Client ...
Страница 22: ...Table 2 3 Configuring Serial Port Power continued 16 Chapter 2 Hardware Changes ...
Страница 23: ...Table 2 3 Configuring Serial Port Power continued Configuring Powered Serial Ports 17 ...
Страница 24: ...Table 2 3 Configuring Serial Port Power continued 18 Chapter 2 Hardware Changes ...
Страница 25: ...Table 2 3 Configuring Serial Port Power continued Configuring Powered Serial Ports 19 ...
Страница 26: ...Table 2 3 Configuring Serial Port Power continued 20 Chapter 2 Hardware Changes ...
Страница 40: ...No Power Part 1 34 Chapter 4 Diagnostics and Troubleshooting ...
Страница 41: ...No Power Part 2 Troubleshooting 35 ...
Страница 42: ...No Power Part 3 36 Chapter 4 Diagnostics and Troubleshooting ...
Страница 43: ...No Video Part 1 Troubleshooting 37 ...
Страница 44: ...No Video Part 2 38 Chapter 4 Diagnostics and Troubleshooting ...
Страница 45: ...No Video Part 3 Troubleshooting 39 ...
Страница 48: ...NO OS Loading 42 Chapter 4 Diagnostics and Troubleshooting ...
Страница 49: ...OS Not Loading from Flash Troubleshooting 43 ...
Страница 54: ...Booting in Continuous Loop 48 Chapter 4 Diagnostics and Troubleshooting ...
Страница 65: ...Select Image to Update 59 ...