Naviset GT-20 LITE, Руководство пользователя

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5. INTERFACES, MODIFICATIONS AND DESCRIPTION OF
CONNECTIONS
5. 1. MAIN MODIFICATIONS OF GT-20 PRO
The hardware platform allows you to increase the capabilities of the device by adding wireless
interfaces. All modifications include a GSM network transmitter. The user can at his or her discretion
disconnect the GSM channel in any modification or set the priorities of its interaction with other
communication channels. Settings of interaction and priorities are available in NAVISET GT20 IR/WiFi
and NAVISET GT20 BT/WiFi.
Modifications PRO Channel 1 Channel 2 Description
NAVISET GT20 - GSM Basic modification
NAVISET GT20 IR IR GSM GSM + IRIDIUM Modification
NAVISET GT20 WiFi WiFi GSM GSM + WiFi Modification
NAVISET GT20 IR/WiFi WiFi + IR
WiFi
GSM
GSM + IR
GSM + WiFi + IRIDIUM Modification
Possible combination
NAVISET GT20 BT BT GSM GSM + Bluetooth Modification
NAVISET GT20 BT/IR BT GSM + IR GSM + Blu IRIDIUM Modification
NAVISET GT20 BT/WiFi BT GSM + WiFi GSM + Blu WiFi Modification
IRIDIUM communication channel can be replaced by STX3 or Gonets or Inmarsat in software.
The yellow color indicates the possible combinations of transmitters on the communication
channels. Combined transmitters can not operate simultaneously on the same channel. Therefore,
the user should determine the initially set priorities of the communication channels.
The priority of the communication channel and the switching logic are described in the truth
table:
Variant 1 Channel
1
Channel
2
Available
network
The network that will
be selected
It is used in the case of periodic
presence of the GSM network
WiFi + IR GSM WiFi - WiFi
WiFi GSM WiFi
- GSM GSM
IR GSM GSM
IR - IR
Variant 2 Channel
1
Channel
2
Available
network
The network that will
be selected
It is used in the case of absence of
the GSM network
WiFi GSM + IR WiFi - WiFi
WiFi GSM WiFi
- GSM GSM
- IR IR
As it can be seen from the truth tables above the priorities are arranged in the following way:
1. Priority - WiFi Network
2. Priority - GSM network
3. Priority - IRIDIUM network (or another satellite network)
If the user has set data transmission via satellite link after the buffer is filled in the
configuration of the device, if the WiFi and GSM channels are absent, the data will be transmitted only