STEPPII-55/56-LT H
ARDWARE
DESCRIPTION
V
ERSION
1.01
The FALCOM STEPPII-55/56-LT comprises also two audio interfaces available on the
provided connectors:
•
Two analog audio interfaces, each with a balanced analog microphone
input and a balanced analog earpiece output. Both analog interfaces
provide supply circuits to feed active microphones.
This means you can connect up to two audio devices in any combination. An audio
interface allows the direct connection of a headset. An example of a possible
installation is shown in the Appendix of this manual. The voice channel of STEPPII-
55/56-LT allows you to conduct a normal telephone conversation. For this, STEPPII-
55/56-LT operates in free-speech mode. Requirements are to connect a loud
speaker (pins 13 and 15) and a free-speech microphone (pins 14 and 16) on the 16-
pin connector interface of the STEPPII-55/56-LT.
After that the terminal is connected to the aforementioned power supply, its actual
status is displayed by two LED’s on the front side of terminal.
STEPPII-55/56-LT device provides the following LED indicators
Name
LED mode
Function
GSM
(Green LED)
Off
Terminal is off or runs in SLEEP mode.
600 ms On/600 ms Off
No SIM card inserted or no PIN entered, or network search in
progress, or ongoing user authentication, or network login in
progress.
75 ms On/3 s Off
Logged to network (monitoring control channels and user
interactions).
No call in progress.
75 ms On/75 ms Off/
75 ms On/3 ms Off
One or more GPRS contexts activated.
Flashing
Flashing Indicates GPRS data transfer: When a GPRS transfer
is in progress, the LED goes on within 1 second after data
packets
were
exchanged.
Flash duration is approximately 0.5 s.
On
On Depending on type of call:
Voice call:
Connected to remote party.
Data call:
Connected to remote party or exchange of parameters
while setting up or disconnecting a call.
GPS
(Yellow LED)
ON
Terminal is searching for satellites. Terminal receives invalid
GPS position, no GPS fix obtained.
Flashing (4 sec. interval)
Start-up GSM error
(i.e. no SIM card inserted or incorrect PIN configuration or is not
ready for operation).
Continually flashing
Valid GPS data are being received, terminal has obtained a GPS
fix and ready for use.
Table 8:
Modes of the LED’s and associated functions
5.2 FALCOM STEPPII-55/56-LT typical applications
The STEPPII-55/56-LT is a plug and play device that can be used as mobile client in a
different variety of system solutions:
TRACKING
The vehicle to be tracked is fitted with a STEPPII-55/56-LT
and an antenna. GPS satellites are continuously transmitting
information, including when the data is being sent, which
satellite sent it and the current reliability of the system. The
STEPPII-55/56-LT fitted in the vehicle, receives this
This confidential document is a property of FALCOM and may not be copied or circulated without previous permission
.
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