SRM-155 SONET/SDH Receiver Module
Product Data Sheet
VI
603-598-0070
6
Qualification
The SRM-155 has been designed to comply with the
intent of Bellcore specifications TR-NWT-000468 and
TA-TSSY-000983 and will be subject to a complete
qualification test plan to demonstrate full compliance.
All of the technologies used in the assembly of the
module represent standard microelectronics
technologies that are used in similar products, and
have extensive field reliability data.
While all components and technologies used in the
optical receiver are backed by qualification data and
should present no reliability risk, VTI intends to
qualify the fully assembled module with the final
design. The qualification plan will entail mechanical
and environmental tests along with accelerated life
tests. The tests will include those parameters listed
below.
Table 4. Qualification Plan
Parameter
Test Method
Sample Size
Physical Dimensions
MIL-STD-883, Method 2016
11
Mechanical Shock
MIL-STD-883, Method2007, Test B
11
Vibration, variable frequency
MIL-STD-883, Method 2007, Test A
11
Lead Solderability
MIL-STD-883, Method 2003
22
Lead Integrity
MIL-STD-883, Method 2004
15
Temperature Cycling
-40°C/85°C, 300 cycles
11
High Temperature Aging
85°C under bias, 3000 hours
11
Low Temperature Storage
-40°C, 168 hours
11
ESD
Method 3015
3
Destructive Bond Pull
MIL-STD-883
40
Optical Fiber Characteristics
The fiber pigtail is a 30.0 +/-1 inch (measured from
the package case to the connector tip) Type 2A
multimode fiber with a 62.5 um core. The fiber is
encased in a slate colored Strengthened Buffered
Jacket (SBJ) cable sheath having a 900 um outer
jacket diameter. The minimum fiber bend radius is
1.25 inches. Connectors may be selected to meet
the specific requirements of each application.