Delta Electronics LCP-4250A4CDR manual MOD-DEF2

SFP Transceiver Electrical Pad Layout

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	1&2 or 2&4 Gbit/s	3	Note 4, Open or Low = 1.063Gb/s, High
				= 2.125Gb/s or 4.25Gb/s
8	LOS	Loss of Signal	3	Note 5
9	VeeR	Receiver Ground	1	Note 6
10	VeeR	Receiver Ground	1	Note 6
11	VeeR	Receiver Ground	1	Note 6
12	RD-	Inv. Received Data Out	3	Note 7
13	RD+	Received Data Out	3	Note 8
14	VeeR	Receiver Ground	1	Note 6
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 6
18	TD+	Transmit Data In	3	Note 9
19	TD-	Inv. Transmit Data In	3	Note 9
20	VeeT	Transmitter Ground	1	Note 6

Plug Seq.: Pin engagement sequence during hot plugging.

4	2008/3/18
	Rev. 0A
DELTA ELECTRONICS, INC.	www.deltaww.com