Advantech PCA-6194, Руководство пользователя

Страница: 41 / 137

25 Chapter 2
(JFP2 / SNMP) can be connected to CN19 of SNMP-1000. Please be
careful about the pin assignments, pin 1 must be connected to pin 1 and
pin 2 to pin 2 on both ends of cable.
2.11.5 External speaker (JFP2 / SPEAKER)
(JFP2 / SPEAKER) is a 4-pin connector for an external speaker. If there
is no external speaker, the PCA-6194 provides an onboard buzzer as an
alternative. To enable the buzzer, set pins 3-4 as closed.
2.11.6 Power LED and keyboard lock connector (JFP3 /
PWR_LED&KEY LOCK)
(JFP3 / PWR_LED&KEY LOCK) is a 5-pin connector for the power on
LED and Key Lock function. Refer to Appendix B for detailed informa-
tion on the pin assignments. The Power LED cable should be connected
to pin 1-3. The key lock button cable should be connected to pin 4-5.
There are 3 modes for the power supply connection. The first is “ATX
power mode”, system is on/off by a tentative power button. The second is
“AT Power Mode”, system is on/off by the switch of the Power supply.
The third is another “AT Power Mode” which is using the front panel
power switch. The power LED status is indicated as following table:
:
Table 2.1: ATX power supply LED status (No support for AT power)
Power mode LED (ATX
Power Mode)
(On/off by tentative
button)
LED (AT power
Mode)
(On/off by switch-
ing power supply)
LED (AT power
Mode)
(On/off by front
panel switch)
PSON1(On
Back plane)
Jumper setting 2-3 pin closed 1-2 pin closed Connect 1-2 pin
cable with
switch
System On On On On
System Sus-
pend Fast flashes Fast flashes Fast flashes
System Off Slow flashes Off Off