sfp-fdsgmii-lr MRV Communications, Inc., sfp-fdsgmii-lr Datasheet - Page 3

• Manufacturer Part Number: sfp-fdsgmii-lr
• Description: 125 Mbps Sgmii Single-mode 10 Km Sfp Transceivers
• Manufacturer: MRV Communications, Inc.

Datasheet
Notes:
Pin Descriptions
Pin
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
1.
2.
3.
4.
5.
6.
7.
TX Fault is an open collector output, which should be pulled up with a 4.7 k~10 kΩ resistor on the host board to a voltage between 2.0 V and
Vcc+0.3V. Logic 0 indicates normal operation; logic 1 indicates a laser fault of some kind. In the low state, the output will be pulled to less than 0.8 V.
TX Disable is an input that is used to shut down the transmitter optical output. It is pulled up within the module with a 4.7 k~10 kΩ resistor. Its
states are:
Low (0~0.8 V):
(>0.8V, <2.0V):
High (2.0~3.465V):
Open:
MOD-DEF 0,1,2 are the module defi nition pins. They should be pulled up with a 4.7 k~10 kΩ resistor on the host board. The pull-up voltage shall
be VccT or VccR.
MOD-DEF 0 is grounded by the module to indicate that the module is present
MOD-DEF 1 is the clock line of two wires serial interface for serial ID
MOD-DEF 2 is the data line of two wires serial interface for serial ID
LOS is an open collector output, which should be pulled up with a 4.7 k~10 kΩ resistor on the host board to a voltage between 2.0 V and
Vcc+0.3V. Logic 0 indicates normal operation; logic 1 indicates loss of signal. In the low state, the output will be pulled to less than 0.8 V.
These are the diff erential receiver output. They are internally AC-coupled 100Ω diff erential lines which should be terminated with 100Ω
(diff erential) at host with SGMII interface.
These are the diff erential transmitter inputs. They are AC-coupled, diff erential lines with 100Ω diff erential termination inside the module.
When hardware rate selection has higher priority than software confi guration via I2C, this pin can be used to select bit rate by host hardware.
MOD_DEF(2)
MOD_DEF(1)
MOD_DEF(0)
Rate Select
Tx Disable
Function
Tx Fault
VeeR
VeeR
VeeR
VeeR
VeeT
VccR
VccT
VeeT
VeeT
RD+
TD+
LOS
RD-
TD-
Optical Communications Systems™
Transmitter on
Undefi ned
Transmitter Disabled
Transmitter Disabled
100Base-FX/1000Base-LX selection
Inverted Transmitter Data In
Transmitter Fault Indication
Inverted Received Data Out
Loss of Signal Indication
Module Defi nition 2
Module Defi nition 1
Module Defi nition 0
Name/Description
Transmitter Ground
Transmitter Disable
Transmitter Ground
Transmitter Ground
Transmitter Data In
Received Data Out
Transmitter Power
3
Receiver Ground
Receiver Ground
Receiver Ground
Receiver Ground
Receiver Power
Plug Seq.
1
3
3
3
3
3
3
3
1
1
1
3
3
1
2
2
1
3
3
1
Note
1
2
3
3
3
7
4
5
5
6
6
-
-
-
-
-
-
-
-
-