Delta Electronics SPBD-1250B4Q1RT manual Enhanced Digital Diagnostic Interface

SPBD-1250B4Q1RT

6. Enhanced Digital Diagnostic Interface

The memory map in the following describes an extension to the memory map defined in SFP MSA. The enhanced interface uses the two wire serial bus address 1010001X(A2h) to provide diagnostic

information about the module’s present operating conditions.

	2 wire address 1010000 X (A0h)
0		0
	Serial ID Defined by SFP MSA
		55
	(96 bytes)	56
95		95
96	Vender Specific	96
		119
	(32 bytes)
		120
127		127
128	Reserved in SFP MSA	128
	(128 bytes)	247
		248
255		255

2 wire address 1010001 X (A2h)

Alarm and Warning Thresholds

(56 bytes)

Cal Constants

(40 bytes)

Real Time Diagnostic Interface (24 bytes)

Vender Specific

User Writable EEPROM

(120 bytes)

Vender Specific

(8 bytes)

7. Digital Diagnostic Monitor Accuracy

Parameter	Accuracy	Unit	Calibration	Note
Transceiver Internal Temperature	± 3℃	℃	Internal	TC=-40~+85℃
Power Supply Internal Voltage	± 3%	V	Internal	VCC=3.3V±5%
TX Bias Current	± 10%	mA	Internal	Specified by nominal bias value
TX Optical Power	± 3dB	dBm	Internal	-9 to -3dBm
RX Optical Power	± 3dB	dBm	Internal	-23 to -3dBm

Note. Temperature and Voltage is measured internal to the transceiver.

5	Revision: S1
	03/12/2007
DELTA ELECTRONICS, INC.	www.deltaww.com