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4.05 MULTI-FUNCTION CONNECTOR (KEYBOARD, SPEAKER, RESET & LED)
Connector J3 on the VIPer provides all the necessary signals for connecting the keyboard,
speaker, reset, and keylock interface devices. The following diagram shows the signal
connections at J3 (referred to as the Keyboard / Speaker Connector):
TABLE 4-4: Keyboard / Speaker Connector (J3)
Pin Number
Signal Flow
Signal
KBCLK I/O
KBDATA I/O
VCC (+5V)
-
SPKR
O
Not Used
-
DOWNLD*
I
PBRES*
I
HDD ACTIVE*
O
* Active low signal
The following functions are available on the connector:
•
Speaker: An 8 ohm speaker can be directly connected to pins 7 and 8 of J3. All
necessary drivers are on the VIPer.
•
Hard Disk LED: The onboard IDE interface activates an external LED. The LED
must be connected anode on pin 16 (J3) and cathode on pin 15 (J3). No external
current limiting resistor is required since one is already present on the VIPer.
•
Reset: The VIPer can be reset by shorting pins 13 and 14 of J3.
Note: The Keyboard Disable function is not supported on the VIPer807.
Pin Number
Signal Flow
Signal
1
2
-
GND
3
4
-
GND
5
6
-
VCC (+5V)
7
8
-
VCC (+5V)
9
10
-
GND
11
12
-
GND
13
14
-
GND
15
16
-
VCC (+5V)
Installing & Working With System Components
4-7
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