HP t630 Thin Client - Troubleshooting Guide

Conguring the serial port
One congurable powered serial port is standard on the thin client. Devices that support a powered serial
interface do not require an external power source. To determine which serial port pin powered a specic
device, refer to the specication for that device. The default setting for the powered serial port is not
powered.
Two system board jumpers control which pins are powered (5V) on the serial port, as follows:
Jumper E43 controls power on pin 9 of the serial port
Jumper E44 controls power on pin 1 of the serial port
To turn on power to the serial port, place the jumper on pins 2 and 3.
To turn o power to the power port, place the jumper on pins 1 and 2.
Locating congurable serial port jumpers
See Locating internal components on page 13 to nd the congurable serial port jumpers. Individual
congurable serial port jumpers on the system board are positioned as shown in the following illustration:
Item Jumper
1 E44
2 E43
Conguring the serial port 21