to monitor unit health status across your customers’ fleets to quickly identify issues
before they become expensive problems.
] 2.2.6 LMU Manager™
LMU Manager is the primary configuration tool in the CalAmp system. It allows access
to almost every feature available to the TTU-2820™. Unlike the backend software, it has
the option of talking directly to an TTU-2820™ or making a request forwarded by the
LM Direct™ server.
For further details on using LMU Manager, please refer to the
] 3 Hardware Overview
] 3.1 Location Messaging Unit-TTU-2820™
] 3.1.1 TTU-2820™ Handling Precautions
Electrostatic Discharge (ESD)
Electrostatic discharge (ESD) is the sudden and momentary electric current that flows
between two objects at different electrical potentials caused by direct contact or induced
by an electrostatic field. The term is usually used in the electronics and other industries to
describe momentary unwanted currents that may cause damage to electronic equipment.
ESD Handling Precautions
ESD prevention is based on establishing an Electrostatic Protective Area (EPA). The
EPA can be a small working station or a large manufacturing area. The main principle of
an EPA is that there are no highly charging materials in the vicinity of ESD sensitive
electronics, all conductive materials are grounded, workers are grounded, and charge
build-up on ESD sensitive electronics is prevented. International standards are used to
define typical EPA and can be obtained for example from International Electro-technical
Commission (IEC) or American National Standards Institute (ANSI).
This ESD classification of the sub assembly will be defined for the most sensitive
component, therefore the following classifications apply:
Class 1B – Human Model (< 1 kV)
Class M1 – Machine Model (< 100V)
