Delta Electronics LCP-1250RJ3SR-L, Техническое описание

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LCP-1250RJ3SR-L
DELTA ELECTRONICS, INC.
- 4 -
Oct
.
2007 Rev. 1.02
www.deltaww.com
Pin Function Definitions
Pin Num. Name Function Plug Seq. Notes
1 VeeT Transmitter Ground 1 Note 5
2 TX Fault Transmitter Fault Indication 3 Note 1 - Function not available
3 TX Disable Transmitter Disable 3
Note 2 - Module disables on high or
open
4 MOD-DEF2 Module Definition 2 3 Note 3 - Two-wire serial ID interface
5 MOD-DEF1 Module Definition 1 3 Note 3 - Two-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 - Function not available
9 VeeR Receiver Ground 1 Note 5
10 VeeR Receiver Ground 1 Note 5
11 VeeR Receiver Ground 1 Note 5
12 RD- Inverse Received Data Out 3 Note 6
13 RD+ Received Data Out 3 Note 6
14 VeeR Receiver Ground 1 Note 5
15 VccR Receiver Power 2 Note 7 - 3.3V ± 5%
16 VccT Transmitter Power 2 Note 7 - 3.3V ± 5%
17 VeeT Transmitter Ground 1 Note 5
18 TD+ Transmitter Data In 3 Note 8
19 TD- Inverse Transmitter 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 not supported and tied to ground.
2) TX disable is an input that is used to reset the chip of Gigabit Ethernet PHY inside the copper SFP. It is pulled
up within the module with a 4.7 – 10 K Ω resistor.
Low (0 – 0.8V): Transmitter on
(>0.8, < 2.0V): Undefined
High (2.0 – 3.465V): Transmitter Disabled
Open: Transmitter Disabled
3) These are the module definition pins. They should be pulled up with a 4.7K – 10K Ω resistor on the host board.
The pull-up voltage shall be VccT or VccR. MOD-DEF 0 is grounded in the module to indicate that the module is
present. MOD-DEF 1 and MOD-DEF 2 are the clock and data lines of the two-wire serial interface, respectively.
4) LOS (Loss of Signal) is the indicator signal of 1000BASE-T link-up/ link-down status . HIGH outputted of LOS
indicates link-down , LOW is linkup status. The LOS signal operation on copper SFP transceiver differs from
optical SFP applications. It should be, pulled up with a 4.7K – 10K Ω resistor on the host board .
5) VeeR and VeeT are internally connected within the copper SFP.
6) RD+ and RD- are the received differential outputs, and they are AC-coupled 100 Ω differential lines that should be
terminated with 100 Ω (differential) at user’s SERDES. The AC coupling is done inside the copper SFP and thus
not required on the host board. The differential voltage swing will be between 250mV and 625 mV, while properly
terminated.