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Preventative Maintenance <br />Service Level <br />Gold Silver Bronze <br />1. Infrastructure _ _ <br />Visual Inspection of tower -mounted antennas and cables. j x ! x <br />Physical Inspection of tower -mounted antennas and cables. x <br />r....._r..__.. <br />Visual grounding and bonding system checks. x i x <br />Physical test grounding and bonding system checks. xT <br />Line sweep test on antenna feedilnes. x _ <br />Check Tl /M PLS/I P links to RF sites for latency and packet toss. x <br />Visual site environ mental inspection (HVAC, Intrusion detection, power). x x� <br />Physical site environmental Inspection (HVAC, Intrusion detection, power). x <br />2. Power Systems <br />Visually inspect UPS systems. x <br />Visually inspect and test UPS systems. x <br />Batteryvoltage and load test. x <br />Visual generator inspection. .x M <br />Visual Generator inspection and load test. x <br />Fuel level check. x <br />Fuel level check and quality sampling. I x <br />3. Microwave or Backhaul Equipment _ <br />Alignment verification and signal strength readings.A x z` <br />Firmware/patch update review. _x _ <br />SNM P tra p verificati on to NO C. N/A ix j <br />Preventative Maintenance <br />Gold ' Silver Bronze <br />1. Systemwide Audi <br />Inventory all equipment with serial numbers, firmware versions. x <br />RF coverage verification (field test or modeUng).A X.,. <br />Security audit (user accounts, password policies, patch levels).A x <br />Review SLAB and incident response metrics. x <br />Conduct tabletop or live fai [over test. .x <br />2. Training & Documentation <br />Annual refresher training for system administrators and key technical staff. <br />Update network documentation, diagrams, and SOPS. <br />Review customer contacts, escalation paths. <br />3. System Optimization <br />Re-evaluatetolkgroup loading and system busies. <br />Optimize channel allocation based on usage patterns. <br />Evaluate logging/recording system storage and retention policies. <br />X. •; <br />x, <br />x� x J <br />;. x <br />(' x <br />I: x <br />4. Terminal _ <br />Measurement output power,correct modulation including data rates and analog or digitalvoice. x x �-- x <br />Check transmit and receive frequency and receiver sensitivity. x T x �x <br />Correct any deficiencies found and documentallresults. ; x ,- xY__'L_-_x <br />15 <br />