Opep-33-a4q1ri, A/d value (2 wire address a2h) – Delta Electronics Downstream Intelligent GE-PON ONU Transceiver OPEP-33-A4Q1RI User Manual
Page 12
OPEP-33-A4Q1RI
DELTA ELECTRONICS, INC.
12 Revision:
S3
12/20/2007
www.deltaww.com
A/D Value (2 Wire Address A2h)
Address # Bytes
Name of Field
Description
96-97
2
Temperature (MSB, LSB)
Internally measured module temperature
98-99
2
Supply Voltage (MSB, LSB)
Internally measured supply voltage in module
100-101
2
Tx Bias Current (MSB, LSB)
Internally measured Tx Bias current
102-103
2
Tx Optical Power (MSB, LSB)
No implemented for Burst Mode.
104-105
2
Rx Received Power (MSB, LSB)
Measured Rx input power
106-109 4 Reserved
Notes:
Temperature (Signed twos complement value)
A2h Byte 96 (Temperature MSB)
A2h Byte 97 (Temperature LSB)
S 2
6
2
5
2
4
2
3
2
2
2
1
2
0
2
-1
2
-2
2
-3
2
-4
2
-5
2
-6
2
-7
2
-8
Supply Voltage, Tx Bias Current, Tx Optical Power, Rx Received Power (Unsigned values)
A2h Byte 98 (V
cc
MSB)
A2h Byte 99 (V
cc
LSB)
A2h Byte 100 (TX Bias MSB)
A2h Byte 101 (TX Bias LSB)
A2h Byte 102 (TX Power MSB)
A2h Byte 103 (TX Power LSB)
A2h Byte 104 (RX Power MSB)
A2h Byte 105 (RX Power LSB)
2
15
2
14
2
13
2
12
2
11
2
10
2
9
2
8
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
The digital value conversions are updated every 13ms (nominal) or 20ms (max) in rotation. After getting digital value,
each measurement could be obtained by multiplying digital value by corresponding LSB value:
Temperature = Temp (Digital Value)
× LSB
Temp
= Temp (Digital Value)
×
1
256; when Temperature<128
Temperature = Temp (Digital Value)
× LSB
Temp
= [Temp (Digital Value)
×
1
256]-256; when Temperature≧128
V
cc
= V
cc
(Digital Value)
× LSB
Vcc
=V
CC
(Digital Value)
× 100µV
TX Bias Current = TX Bias Current (Digital Value)
× LSB
TX,Bias
= TX Bias Current (Digital Value)
× 2µA
TX Power = TX Power (Digital Value)
× LSB
TXPower
= TX Power (Digital Value)
× 0.1µW
RX Power = RX Power (Digital Value)
× LSB
RXPower
= RX Power (Digital Value)
× 0.1µW