FTLX1371 PRELIMINARY Datacom SFP+ Product Specification – July 2008
II.
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Pin Descriptions
Symbol
V
EET
T
FAULT
T
DIS
SDA
SCL
MOD_ABS
RS0
RX_LOS
RS1
V
EER
V
EER
RD-
RD+
V
EER
V
CCR
V
CCT
V
EET
TD+
TD-
V
EET
Name/Description
Transmitter Ground
Transmitter Fault
Transmitter Disable. Laser output disabled on high or open.
2-wire Serial Interface Data Line
2-wire Serial Interface Clock Line
Module Absent. Grounded within the module.
No connection required
Loss of Signal indication. Logic 0 indicates normal operation.
No connection required
Receiver Ground
Receiver Ground
Receiver Inverted DATA out. AC Coupled
Receiver Non-inverted DATA out. AC Coupled
Receiver Ground
Receiver Power Supply
Transmitter Power Supply
Transmitter Ground
Transmitter Non-Inverted DATA in. AC Coupled.
Transmitter Inverted DATA in. AC Coupled.
Transmitter Ground
Ref.
1
2
3
3
3
4
1
1
1
1
1
Notes:
1. Circuit ground is internally isolated from chassis ground.
2. Laser output disabled on T
DIS
>2.0V or open, enabled on T
DIS
<0.8V.
3. Should be pulled up with 4.7k – 10kohms on host board to a voltage between 2.0V and 3.6V.
MOD_ABS pulls line low to indicate module is plugged in.
4. RX_LOS is open collector output. Should be pulled up with 4.7k – 10kohms on host board to a
voltage between 2.0V and 3.6V. Logic 0 indicates normal operation; logic 1 indicates loss of signal.
VeeT
1
VeeT
TD-
2
TX_Fault
TD+
3
TX_Disable
VeeT
4
SDA
VccT
20
19
18
17
16
Towards
Bezel
5
SCL
VccR
15
6
MOD_ABS
VeeR
14
Towards
ASIC
7
RS0
RD+
13
8
RX_LOS
RD-
12
9
RS1
VeeR
11
VeeR
10
Figure 2. Diagram of Host Board Connector Block Pin Numbers and Names
©
Finisar Corporation - July 25, 2008 DRAFT Rev. A3
Page 3
FINISAR [ FINISAR CORPORATION. ]
