FTLF1217P2xTL Pluggable SFP Product Specification – September 2008
©
Finisar Corporation September 13, 2008 Rev. B
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. LED output disabled on high or open.
3
4
MOD_DEF(2)
Module Definition 2. Data line for Serial ID.
4
5
MOD_DEF(1)
Module Definition 1. Clock line for Serial ID.
4
6
MOD_DEF(0)
Module Definition 0. Grounded within the module.
4
7
Rate Select
No connection required
8
LOS
Loss of Signal indication. Logic 0 indicates normal operation.
5
9 V
EER
Receiver Ground (Common with Transmitter Ground)
1
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
FAULT
is an open collector/drain output, which should be pulled up with a 4.7k – 10k Ohms resistor on
the host board. Pull up voltage should be between 2.0V to Vcc + 0.3V. A high output indicates an LED
fault, i.e. LED open or short. Low indicates normal operation. In the low state, the output is pulled to
<0.8V.
3.
LED output disabled on T
DIS
>2.0V or open, enabled on T
DIS
<0.8V.
4.
Should be pulled up with 4.7k – 10kohms on host board to a voltage between 2.0V and 3.6V.
MOD_DEF(0) pulls line low to indicate module is plugged in.
5.
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.
