jsh-42l3ad3-5 JDS Uniphase Corporation, jsh-42l3ad3-5 Datasheet - Page 15

• Manufacturer Part Number: jsh-42l3ad3-5
• Description: Sfp Pluggable 4/2/1g Fc/gbe Fp And Dfb Transceiver Rohs 6/6 Jsh-42l3ad3-5, Jsh-42l3ad3-5g, Jsh-42l3ad3-20
• Manufacturer: JDS Uniphase Corporation

Two-wire Interface Memory Map
15
127
128
255
234
235
95
96
0
See Monitor Data Table 1 on page 16
Address 0xA0
See Serial ID Table 1 on page 16
Serial ID Defined by SFP MSA
(96 bytes)
Vendor Specific (32 bytes)
Application Select Table (per
SFF-8079 and SFF-8089 MSAs)
JDS Uniphase Data
Below is a summary of the transceiver memory map. The transceiver provides mul-
tiple application selection capability in accordance with SFF-8079+. Modifications
to the memory map in support of this feature are to be determined. Additional
details can be found in the sections that follow.
Serial ID Data Descriptions (Page/Device Address 0xA0)
All ID information is stored in eight-bit parameters addressed from 0x00 to 0x7F.
All numeric information fields have the lowest address in the memory space stor-
ing the highest order byte. The highest order bit is always transmitted first. All nu-
meric fields will be padded on the left with zeros. All character strings are ordered
with the first character to be displayed located in the lowest address of the memory
space. All character strings will be padded on the right with ASCII spaces (0x20)
to fill empty bytes.
Check Codes
The check codes contained within the identification data are one byte codes that
can be used to verify that the data in previous addresses is valid. CC_BASE check
code is the lower eight bits of the sum of the contents of bytes 0-62. CC_EXT check
code is the lower eight bits of the sum of the contents of bytes 64-94.
SFP PlUGGABlE 4/2/1G FC/GBE FP AND DFB TRANSCEIvER ROHS 6/6
120
119
128
127
255
247
248
55
56
95
96
0
See Monitor Data Table 2 on page 17
(24 bytes)
Alarm and Warning Thresholds
Calibration constants (40 bytes)
Real Time Diagnostic Interface
Vendor Specific (8 bytes)
See Monitor Data Table 4 on page 17
(56 bytes)
Address 0xA2
See Monitor Data Table 1 on page 17
User Writable EEPROM
(120 bytes)
Tx_Fault Alarm, Warning interrupt
control. See detailed section on
page 17.