Lifecycle Management

[DisasterGuy]

I am looking for assistance with the compilation of standards and best practices related to lifecycle management of subscriber and infrastructure equipment. For example, the following is the standard within Florida based on typical PM and expressed within years:

Mobile Radios 8
Portable Radios 6

Base and Control Station Radios - 10
Transmitter combiners - 10

Antennas and Transmission Lines
Within 10 miles of bodies of salt water 10
Other locations 12

Antenna Towers
Within 10 miles of bodies of salt water 15
Other locations 20

Antenna Tower Lighting Systems 10

Control consoles 10

Logging Recorders 10

Instant Recall Recorders 6

Prefabricated Equipment Shelters 15

Standby Emergency Power Generators
Within 10 miles of bodies of salt water 8
Other locations 12

Microwave Equipment 15

 

[gesucks]

you would may a better response posting this question over at P25.ca. I think you will find a lot more sys admins and people in the industry over there that have the answer to this question.

 

[davidgcet]

around here life cycle for anything related to public safety comms is when the system or component dies and new parts are no longer available! then if grant money is not available odds are it won't be replaced.

 

[DisasterGuy]

I hear you David... I am hoping that somewhere there are some general standards that have been adopted. My goal is to be able to create / justify a rotation of x% per year at least on the public safety side of the system so that it is built into an operating budget every single year. We have an agency on the system that does 10% per year placing everything basically on a 10 year lifecycle but that is even appearing a bit long in the tooth.

 

[davidgcet]

for systems gear 10 years is good base line, for subscribers 7-10 years. 911 systems seem to be around 7-10 years as well. Recorders seem to be every 3-5 year in my experience, no one seems to support them long due to the computer portions changing so rapidly.

towers should be inspected and maintained at least annually. If this is kept up with as it should be, then 40-50 years on the structure itself is highly likely. Antennas and lines should get decades as well, barring lightning/other damage.