Finisar FTLX8571D3BCL Manual De Usuario
FTLX8571D3BCL Product Specification – September 2009
© Finisar Corporation - September 2009 Rev D
Page 2
I.
Pin Descriptions
Pin Symbol
Name/Description
Ref.
1 V
EET
Transmitter Ground (Common with Receiver Ground)
1
2 T
FAULT
Transmitter
Fault.
2
3 T
DIS
Transmitter Disable. Laser output disabled on high or open.
3
4
SDA
2-wire Serial Interface Data Line
4
5
SCL
2-wire Serial Interface Clock Line
4
6
MOD_ABS
Module Absent. Grounded within the module
4
7 RS0
No
connection
required
8
RX_LOS
Loss of Signal indication. Logic 0 indicates normal operation.
5
9 RS1
No connection required
10 V
EER
Receiver Ground (Common with Transmitter Ground)
1
11 V
EER
Receiver Ground (Common with Transmitter Ground)
1
12 RD-
Receiver Inverted DATA out. AC Coupled
13
RD+
Receiver Non-inverted DATA out. AC Coupled
14 V
EER
Receiver Ground (Common with Transmitter Ground)
1
15 V
CCR
Receiver Power Supply
16 V
CCT
Transmitter Power Supply
17 V
EET
Transmitter Ground (Common with Receiver Ground)
1
18
TD+
Transmitter Non-Inverted DATA in. AC Coupled.
19 TD-
Transmitter Inverted DATA in. AC Coupled.
20 V
EET
Transmitter Ground (Common with Receiver Ground)
1
Notes:
1. Circuit ground is internally isolated from chassis ground.
2. T
1. Circuit ground is internally isolated from chassis ground.
2. T
FAULT
is an open collector/drain output, which should be pulled up with a 4.7k – 10k Ohms resistor on
the host board if intended for use. Pull up voltage should be between 2.0V to Vcc + 0.3V. A high
output indicates a transmitter fault caused by either the TX bias current or the TX output power
exceeding the preset alarm thresholds. A low output indicates normal operation. In the low state, the
output is pulled to <0.8V.
output indicates a transmitter fault caused by either the TX bias current or the TX output power
exceeding the preset alarm thresholds. A low output indicates normal operation. In the low state, the
output is pulled to <0.8V.
3. Laser output disabled on T
DIS
>2.0V or open, enabled on T
DIS
<0.8V.
4. Should be pulled up with 4.7k
Ω – 10kΩ on host board to a voltage between 2.0V and 3.6V.
MOD_ABS pulls line low to indicate module is plugged in.
5. LOS is open collector output. Should be pulled up with 4.7k
Ω – 10kΩ on host board to a voltage
between 2.0V and 3.6V. Logic 0 indicates normal operation; logic 1 indicates loss of signal.
Figure 1. Diagram of Host Board Connector Block Pin Numbers and Names.
VeeT
VeeT
VeeR
VeeR
TD-
TD+
RD+
RD-
VccT
VccR
VeeT
VeeR
TX_Fault
SDA
SCL
MOD_ABS
RS0
RX_LOS
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
Towards
ASIC
Towards
Bezel
TX_Disable
RS1