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Cisco ONS 15800 Series DWDM Platforms

Field Notice 15289: ONS15800/15801 Transponder B1 Monitoring May Not Function


September 28, 2001



Products Affected

Product

Top Assembly

Comments

Part Number

Rev.

LEM-EM-Mxx

Multiple

C0

Part revision moves from -03 C0 to -03 D0

RXT-DM-M

800-10411-03

A0

Part revision moves from 800-10411-03 A0 to 800-10411-03 B0

WCM-EM-Mxx

Multiple

C0

Part revision moves from -03 C0 to -03 D0

Problem Description

Transponders with B1 monitoring capability are not performing the B1 monitoring activity.

Background

Transponders with B1 monitoring capability are not performing the B1 monitoring activity.

Problem Symptoms

When a transponder with a disconnected B1 monitoring daughterboard is installed, the transponder may work successfully. When interrogated by an Element Manager or CPLT, however, the B1 monitoring functionality will be seen as not active.

Workaround/Solution

The problem is visible only on newly installed units. If the problem occurs, return the unit using the Return Materials Authorization (RMA) process, and indicate the unit as Dead on Arrival (DOA). After the transponder is installed in a shelf, the daughterboard cannot be disturbed by movement.

How To Identify Hardware Levels

The problem exists only on B1 monitoring transponders with a date-code/serial-number prior to 50130XXX. Transponders with the date-code/serial-number of 50130XXX or later are not affected by the problem.

For More Information

If you require further assistance, or if you have any further questions regarding this field notice, please contact the Cisco Systems Technical Assistance Center (TAC) by one of the following methods: