JSH-42L3AD3-5G JDSU [JDS Uniphase Corporation], JSH-42L3AD3-5G Datasheet - Page 13

• Manufacturer Part Number: JSH-42L3AD3-5G
• Description: LW 4x/2x/1x FC SFP with DDM
• Manufacturer: JDSU [JDS Uniphase Corporation]

Two-Wire Interface Figure 1
Two-Wire Interface Figure 2
Two-Wire Interface Figure 4
Two-Wire Interface Figure 3
OCTOBER 2008
continued from Figure 3
SDA
S
T
A
R
T
SCL
0
S
T
A
R
T
SDA
SCL
SDA
SCL
(Sequence continued from Serial ID Figure 4.)
1
1
start
0
0
user to start reading data.
Byte entered to allow the
Byte entered to allow the
user to set the starting
address for a Serial ID data read.
Acknowledge from SFF
1
1
MSB
1
Acknowledge from SFF
0
0
2
0
0
SDA
SCL
Data transfer on the Two-wire interface
Start and Stop TIming
Read Data Sequence Timing
Set Data Address Sequence for Read Timing
3
0
0
START
0
0
8
1
0
ACK
9
The data line is normally high. It will remain high
until an Acknowledge or a Stop command is sent.
A
C
K
Acknowlegement signal from slave
A
C
K
1
0
0
0
Data address to start reading
data from. (Addr. 0 in this
example, 0 through 255 available)
An example data word.
1
0
(9A in this example)
0
2
Acknowledge from SFF
1
0
STOP
1
0
JDSU Product Specification 21111542-001
JSH-42L3AD3-5, JSH-42L3AD3-5G
0
0
8
LW 4x/2x/1x FC SFP with DDM
1
0
ACK
9
0
0
stop
A
C
K
JSH-42L3AD3-20
S
T
A
R
T
Page 13 of 45
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T
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