User Manual Part 2

Link CX-24 User’s Manual
Version 1.0 Page 80 February 2004
E-2.3 unitTestTrap
Link CX-24 sends this trap when any of the test variables change, either at the start or at completion of a
test. All the test state variables are contained in the trap PDU, along with the trap counter. This trap alerts
the management application that a change has taken place that will probably result in an alarmTrap
before too long (in case it doesn’t already know, and in case it wants to distinguish between this case and
spontaneous alarmTraps). The state variables in the trap PDU include:
• trap counter
• DS3 local loopback
DS3 remote loopback
• radio loopback
• pseudoAIS
• BERT
temporary Tx attenuation
Bibliography
ITU - T K.40 Protection against LEMP(Lightning ElectroMagnetic
Pulse) in telecommunications centers
ITU - T K.27 Bonding configurations and earthing inside a
telecommunication building
ITU - T K.35 Bonding configurations and earthing at remote electronic
sites
ITU - T K.39 Risk assessment of damages to telecommunications
sites due to lightning discharges
ITU - T Lightning Handbook The protection of telecommunication lines and
equipment against lightning discharges
IEEE Emerald Book Powering and Grounding
The “Grounds” for Lightning and EMP (Electromagnetic Pulse) Protection, second edition
Published by PolyPhaser Corporation