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LCP-155D4RDR Datasheet(PDF) 5 Page - Delta Electronics, Inc.

Part No. LCP-155D4RDR
Description  RoHS Compliant SFP Transceiver for ATM, SONET OC-3/SDH STM-1 with Digital Diagnostic Monitoring Function
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Maker  DELTA [Delta Electronics, Inc.]
Homepage  http://www.deltaww.com
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LCP-155D4RDR Datasheet(HTML) 5 Page - Delta Electronics, Inc.

 
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DELTA ELECTRONICS, INC.
5
Nov., 2006
Rev. 1B
www.deltaww.com
Pin Function Definitions
Pin Num.
Name
Function
Plug Seq.
Notes
1
VeeT
Transmitter Ground
1
2
TX Fault
Transmitter Fault Indication
3
Note 1
3
TX Disable
Transmitter Disable
3
Note 2
Module disables on high or open
4
MOD-DEF2
Module Definition 2
3
Note 3, 2 wire serial ID interface
5
MOD-DEF1
Module Definition 1
3
Note 3, 2 wire serial ID interface
6
MOD-DEF0
Module Definition 0
3
Note 3, Grounded in Module
7
Rate Select
Not Connect
3
Function not available
8
LOS
Loss of Signal
3
Note 4
9
VeeR
Receiver Ground
1
Note 5
10
VeeR
Receiver Ground
1
Note 5
11
VeeR
Receiver Ground
1
Note 5
12
RD-
Inv. Received Data Out
3
Note 6
13
RD+
Received Data Out
3
Note 7
14
VeeR
Receiver Ground
1
Note 5
15
VccR
Receiver Power
2
3.3 ± 5%, Note 7
16
VccT
Transmitter Power
2
3.3 ± 5%, Note 7
17
VeeT
Transmitter Ground
1
Note 5
18
TD+
Transmit Data In
3
Note 8
19
TD-
Inv. Transmit Data In
3
Note 8
20
VeeT
Transmitter Ground
1
Note 5
Plug Seq.: Pin engagement sequence during hot plugging.
Notes:
1)
TX Fault is an open collector/drain output, which should be pulled up with a 4.7K – 10KΩ resistor on the host
board. Pull up voltage between 2.0V and VccT, R+0.3V. When high, output indicates a laser fault of some kind.
Low indicates normal operation. In the low state, the output will be pulled to < 0.8V.
2)
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 – 10 K Ω resistor. Its states are:
Low (0 – 0.8V):
Transmitter on
(>0.8, < 2.0V):
Undefined
High (2.0 – 3.465V):
Transmitter Disabled
Open:
Transmitter Disabled
3)
Mod-Def 0,1,2. These are the module definition pins. They should be pulled up with a 4.7K – 10KΩresistor on the
host board. The pull-up voltage shall be VccT or VccR (see Section IV for further details). Mod-Def 0 is grounded
by the module to indicate that the module is present Mod-Def 1 is the clock line of two wire serial interface for
serial ID Mod-Def 2 is the data line of two wire serial interface for serial ID
4)
LOS (Loss of Signal) is an open collector/drain output, which should be pulled up with a 4.7K – 10KΩ resistor.
Pull up voltage between 2.0V and VccT, R+0.3V. When high, this output indicates the received optical power is
below the worst-case receiver sensitivity (as defined by the standard in use). Low indicates normal operation. In
the low state, the output will be pulled to < 0.8V.
5)
VeeR and VeeT may be internally connected within the SFP module.
6)
RD-/+: These are the differential receiver outputs. They are AC coupled 100Ω differential lines which should be
terminated with 100Ω (differential) at the user SERDES. The AC coupling is done inside the module and is thus
not required on the host board. The voltage swing on these lines will be between 370 and 2000 mV differential
(185 – 1000 mV single ended) when properly terminated.


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