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Chapter 2: Technical Specifi cations and Installation
2.1.3 Connectors and LED Indicators (*AOC-LPZCR1)
Activity LED Indicator
Activity LED Indicator (J2), located
on the front side of the AOC-LPZCR1
card, indicate the activity status of the
AOC-LPZCR1 card. See the table on
the right for pin defi nitions.
Activity LED
Pin Definitions (J2)
Pin# Pin Definitions
Pin1 -(Negtive) or Cathod
Pin2 +(Positive) or Anode
Buzzer Connector
Buzzer Connector (J4), located on the
front side of the AOC-LPZCR1 card,
provides a connection for the onboard
buzzer. See the table on the right for
pin defi nitions.
Buzzer Connector
Pin Definitions (J4)
Pin# Definitions
Pin1 +(Positive)
Pin2 -(Negtive)
(*Note: Refer to the layout on Page 2-1 for the locations of the Connectors and
LED Indicators.
SMB (I
2
C)
A System Management Bus header is
located at J1. Connect the I
2
C cable
here to utilize SMB on your add-on
card (*See below). See the table on
the right for pin defi nitions.
I
2
C Cable Connection
1. The I
2
C Cable has a 3-pin con-
nector on one end, and a 4-pin con-
nector on the other end.
2. Connect the 3-pin connector of
the cable to the 3-pin I
2
C Connec-
tor (J1) on the AOC-LPZCR card as
shown on the right.
3. Connect the 4-pin connector of
the cable to the 4-pin I
2
C Connector
on the backplane as shown on the
right.
SMB (I
2
C)
Pin Definitions (J1)
Pin
Number
1
2
3
Definition
Data
Ground
Clock
3-Pin Connector
on the cable
3-Pin Connector (J1)
on the LPZCR1
4-Pin Connector on
the cable
4-Pin I
2
C Connector
on the Backplane