HP vc4820T - Thin Client Hardware Reference Manual page 26

Item
5
6
7
8
9
10
Before beginning the configuration process, review
on page 11 for procedures you should follow before and after installing or replacing hardware.
WARNING!
power cord is disconnected from the electrical outlet.
To configure the serial ports:
1. Locate the serial port and jumper.
2. Place jumpers on the appropriate pins. (See
on page 21
CAUTION:
COM Port Jumper locations and supported configurations before you configure a serial port.
See Figure 2-10 Serial Port Jumper Locations on the System Board on page 19
Configuring Serial Port Power on page 21
Table 2-1 COM Port Default Configuration
pin #
pin 1
pin 2
pin 3
pin 4
pin 5
pin 6
pin 7
pin 8
pin 9
20 Chapter 2 Hardware Changes
Jumper
COM3 JP1
COM3 JP2
COM3 JP3
COM4 JP1
COM4 JP2
COM4 JP3
Before removing the side access panel, ensure that the thin client is turned off and the
to determine the appropriate pins.)
An unsupported configuration can cause severe equipment damage. Carefully verify
COM1
DCD
RXD
TXD
DTR
GND
DSR
RTS
CTS
RI
General Hardware Installation Sequence
Table 2-3 Configuring Serial Port Power
for Jumper locations and supported configurations.
COM2 COM3
+5V +5V
RXD RXD
TXD TXD
DTR DTR
GND GND
DSR DSR
RTS RTS
RXD (TTL) CTS
TXD (TTL) RI
and Table 2-3
COM4
+5V
RXD
TXD
DTR
GND
DSR
RTS
CTS
RI
ENWW