Cisco GainMaker Optoelectronic Node 1GHz with 65 86 MHz Split Technical References
78-4021645-01 Rev C
3
Identifying Specific Units Affected by a Shorting OIB
Identifying Specific Units Affected by a Shorting OIB
A unit may be affected by the shorted OIB condition if it was manufactured prior to
August 2007 and has not yet been reworked to address this condition.
Erratic operation or total node failure may indicate a short between an OIB power
Erratic operation or total node failure may indicate a short between an OIB power
trace and the node housing ground boss. Regardless of whether they exhibit trouble
symptoms, all Reverse Segmentable GainMaker Nodes made prior to August 2007
that have not been reworked for this condition should be returned for rework.
Note: Reverse Segmentable GainMaker Nodes with date codes of August 2007 or
Note: Reverse Segmentable GainMaker Nodes with date codes of August 2007 or
later will already be reworked or will have a redesigned OIB that prevents the
condition from occurring.
To Identify the Manufacturing Date
A label affixed to the node housing indicates the month and year of manufacture.
The month is represented by a capital letter, as follows:
Code
Month
A
January
B
February
C
March
D
April
E
May
F
June
G
July
H
August
J
September
K
October
L
November
M
December
For example, the date code H2007 indicates that the node was made in August of
2007.