LMU-5541 Hardware & Installation Guide
If the character ‘D’ is present, it indicates the LMU had a data session established when it responded to the status request. For the 8-Bit product
line an upper case ‘D’ indicates both the Inbound and
Maintenance sockets are ready. The lower case ‘d’ indicates that only the Maintenance socket is ready. A ‘.’ indicates no sockets are ready.
o
[./a/A]:
This field indicates if the LMU has received an Acknowledgement from the Inbound server. This field will be empty if the LMU has never
received an ACK. The lower case ‘a’ will be present if it has
received an ACK since the last cold boot (i.e. power cycle) but not the last warm boot (App Restart or Sleep). The upper case ‘A’ will be present
if the LMU has received an ACK since the last warm boot.
A ‘.’ Indicates no acknowledgement has been received.
o
[./L]:
This field indicates if the LMU’s log is currently active. An ‘L’ indicates that the log is currently in use (i.e. one or more records have been
stored) where a ‘.’ indicates the log is inactive.
o
[IP Address]:
This is an optional field if and is only present if the LMU has established a valid data session. This field will contain the current IP address of the
LMU as assigned by the wireless network. Note that if
you see a value of 192.168.0.0, this is an indication that the LMU has not been able to establish a data session.
o
[<APN>]
The current Access Point Name in use by a GSM LMU.
GPS:
o
[Antenna <Short/Open/Off>]:
This field, if present, indicates a problem with the LMU’s GPS antenna. A value of Short indicates that the antenna cable has likely been crushed.
A value of Open indicates that the antenna cable is either
cut or disconnected. A value of Off indicates that the LMU’ GPS receiver is off.
o
[No Time Sync]:
If this field is present, it indicates that the LMU’s GPS receiver has not been able to find even a single GPS satellite. This would likely been seen
in conjunction with the above antenna error, or if the LMU
GPS antenna is otherwise blocked.
o
[<FixStatus> <Sat Count>]:
If these fields are present it indicates that the LMU has, or had a valid GPS solution. The <Sat Count> field indicates how many GPS satellites
are currently in use by the LMU. The <FixStatus> field
indicates the type of fix. The Fix Status types are detailed in the LM Direct Reference Guide.
INP:
o
<input states>:
This field details the current state of each of the LMU’s discreet inputs. This field is always 8 characters long. The left most character represents
the state of input 7 where the right most represents the state
of input 0 (i.e. the ignition). A value of 1 indicates the input is currently in the high state. A value of 0 indicates it is currently in the low state.
o
<vehicle voltage>:
This field will contain the current reading of the LMU’s internal A/D. This will be the supply voltage provided to the LMU in mV.
MID:
o
<mobile ID>:
This will be the current mobile ID in use by the LMU.
o
<mobile ID type>:
This will be the type of Mobile ID in use by the LMU. The available types are, Off, ESN, IMEI, IMSI, USER, MIN and IP ADDRESS.
INB:
o
<inbound IP address>:
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LMU-5541 Hardware & Installation Guide
This is the current IP address in use by the LMU. This value should match the IP address of your LM Direct
™
server.
o
<inbound port>:
This is the current UDP port the LMU will use to deliver its LM Direct
™
data. This value should match UDP port you are using on your LM
Direct
™
server. It is typically 20500.
o
<Inbound Protocol (LMD/LMX)>:
This is the current UDP/IP messaging protocol in use by the LMU. In general it should be LMD.
Example GSM Response
APP:081 8.3d
COM:0
GPS:No Time Sync
INP:11100111 13.7V
MID:4141000100 ESN
INB:207.7.101.227:20500 LMD
6 LMU-5541 Router Configuration & Management
6.1 Configure Maintenance Computer
Change the IP settings on the maintenance computer to match the subnet of the LMU-5541
™
Go to Control Panel ? Network and Internet ? Network and Sharing Center ? Change adaptor settings ? Local Area Connection ? Properties ?
Internet Protocol Version 4 (TCP/IPv4) ? Properties ?
Select “Use the following IP address:”
Enter the following IP settings:
Ethernet IP address = 192.168.1.189
Subnet mask = 255.255.255.0
