95% RH @ 50° C non-condensing
Shock and Vibration
U.S. Military Standard2 02G and 810G, SAE J1455
EMC/EMI
IEC 61000-4-2 (4KV test)
Electromagnetic Compatibility (EMC)
EMC compliant for a ground vehicle environment SAE Test: SAE J1113 Parts 2, 12, 21 and 41
Operating Voltage Range
The LMU-5541™ supports vehicles with 12 or 24 VDC systems including transients and electrical system noise; this includes ranges from 8 to 32 VDC.
Electrostatic Discharge (ESD)
No damage or performance degradation after the ESD disturbance. SAE Test: SAE J1113 Part 13
Power Consumption
Operating Voltage
12/24 VDC Vehicle Systems
9-30 VDC (start-up, operating)
8-32 VDC (momentary)
Power consumption
Typical <2mA @ 12V (deep sleep)
Typical 20mA @12V (radio-active sleep)
Typical ~300mA @ 12V (active tracking w/GPS and cell enabled)
Satellite Location (GNSS)
Hybrid GPS, GLONASS, SBAS Engine (WAAS, EGNOS, MSAS)
55 Channels
Location Accuracy: ~2.0m CEP Open Sky (SBAS 24 hours static)
Tracking sensitivity -167 dBm
Acquisition sensitivity -156 dBm (hot start)
-148 dBm (cold start)
Location Update: up to 4 Hz
Communications (Comm)
RoHS Compliant
Data Support:
TCP/IP, UDP/IP, DHCP, HTTP, IP Router, PPP, HTTP web server, Telnet DHCP server, DDNS, DDNS Client, NAT, NMEA, TAIP, TSIP, TFTP, IP port forwarding,
CalAmp Telematics Cloud API
The following pertains to devices that have a JBUS connector and a 4-pin LMU power cable (part number 5C888) attached to the LMU.
Caution: Some JBUS vehicles operate on 24VDC. In situations where ignition and/or power is hard wired to the 4-pin LMU power cable, it is imperative to have matched
voltage levels. Any mismatched voltages can create a problem. For example do not use 24VDC power from the JBUS simultaneoulsy with 12VDC from the LMU power
cable, or vice versa, as this could damage the board.
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