Finisar FTLF8524E2GNL Manuale Utente
FTLF8524E2xNy 2x7 Pin SFF Product Specification – July 2005
Finisar Corporation July 12, 2005 RevG
Page 2
I.
Pin Descriptions
Pin Symbol
Name/Description
Logic
Family
MS MS
Mounting Studs are for mechanical attachment and are connected to
chassis ground. Chassis ground is internally isolated from circuit
grounds. Connection to user’s ground plane is recommended.
chassis ground. Chassis ground is internally isolated from circuit
grounds. Connection to user’s ground plane is recommended.
NA
1 V
EER
Receiver Ground (Common with Transmitter Ground)
NA
2 V
CCR
Receiver Power Supply
NA
3
SD
Signal Detect. Logic 1 indicates normal operation.
LVTTL
4 RD-
Receiver Inverted DATA out. AC Coupled
See Rx spec.
5
RD+
Receiver Non-inverted DATA out. AC Coupled
See Rx spec.
6 V
CCT
Transmitter Power Supply
NA
7 V
EET
Transmitter Ground (Common with Receiver Ground)
NA
8 T
DIS
Transmitter
Disable
LVTTL
9
TD+
Transmitter Non-Inverted DATA in. AC Coupled.
See Tx spec.
10 TD-
Transmitter Inverted DATA in. AC Coupled
See Tx spec.
A
SDA
Two Wire Digital Diagnostics Data Interface
See Note 1
B
SCL
Two Wire Digital Diagnostics Clock Interface
See Note 1
C Rate
Select
Open or Low =
High =
High =
1.063 Gb/s or 2.125 Gb/s Fibre Channel,
(Low Bandwidth)
2.125 or 4.25 Gb/s Fibre Channel (High Bandwidth)
LVTTL
See Note 2
D Reserved
NA
Notes:
1.
Should be pulled up with 4.7k – 10kohms on host board to a voltage between 2.0V and V
CC
.
2.
For Rate Selectable version only: In accordance with SFF Committee SFF-8079 Draft Rev. 1.6,
Table 3. Note that rate select can also be set through 2-wire bus in accordance with SFF-8472
Table 3. Note that rate select can also be set through 2-wire bus in accordance with SFF-8472
5
at Bit
3, Byte 110, Address A2h (note: writing ‘1’ selects full bandwidth operation). Rate select is the logic
OR of the input state of Rate Select Pin and 2-wire bus. Non Rate Selectable version can operate at 1x,
2x, 4x Fibre Channel independent of rate select pin setting.
OR of the input state of Rate Select Pin and 2-wire bus. Non Rate Selectable version can operate at 1x,
2x, 4x Fibre Channel independent of rate select pin setting.
TOP VIEW
C A 1 … 5
D B 10 … 6
MS
MS