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General Features
SATELLINE-3AS/TC is a member of the versatile SATELLINE-3AS radio modem family. Consisting of a data modem and a UHF radio transceiver, it provides a wireless, transparent and half-duplex serial data link with other similar radio modules or compatible SATELLINE radio modems manufactured by SATEL Oy.
SATELLINE-3AS/TC is designed for integration into the terminal equipment. The component blocks are shielded by metal plates, but the housing and the related mechanics are supplied by the client. Also the EMC characteristics of the radio module are completed for the combined equipment.
A number of new SL commands has been implemented to the modem controller software for full control of the features of SATELLINE-3AS/TC in integrated use.
The implementation of SATELLINE-3AS/TC is based on the widely used SATELLINE-3AS radio modem – the radio communication and the user interface are similar. The main differences to SATELLINE-3AS are:
- SATELLINE-3AS/TC is delivered without the housing – only the two PCBs (the logic board and the RF board shielded as a one card) are supplied by SATEL
- Antenna connector is a female MMCX connector.
- The antenna circuitry of the radio module includes an additional filter on GPS frequencies in order to avoid any interference to the GPS receivers.
- The main header is a 32-pin Eurocard connector type B.
- The operating voltage must be 6.5V…18VDC.
SATELLINE-3AS/TC has two pins in the header connector for controlling the external LED indicators, the one for the external green LED and the other for the red LED. By different combination of the LED status, the user of the application device can monitor the status of the SATELLINE-3AS/TC radio module.
SATELLINE-3AS/TC complies with the following international standards:
- EN 300 113 (radio requirements)
- EN 301 489-1, -5 (EMC requirements, applicable parts)
- EN 60950 (Electrical safety requirements, applicable parts) Note: The client is responsible for the final level of EMC and electrical safety characteristics in their product assembly.
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RADIO TRANSCEIVER
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Frequency Range
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380...470 MHz
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Channel Spacing
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12.5 kHz/25 kHz
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Number of Channels
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160 / 80 or (2 x 160 / 2 x 80)
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Frequency Stability
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< ± 1.5 kHz
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Type of Emission
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F1D
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Communication Mode
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Half-Duplex
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RADIO TRANSMITTER
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Carrier Power
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10 mW...1 W / 50 Ω
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Carrier Power Stability
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+ 2 dB / - 3 dB
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Adjacent Channel Power
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according to EN 300 113
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Spurious Radiations
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according to EN 300 113
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RADIO RECEIVER
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Sensitivity
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- 116... –110 dBm (BER < 10 E-3) depending on Receiver settings
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Common Channel Rejection
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> - 12 dB
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Adjacent Channel Selectivity
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> 60 dB @ 12,5 kHz, > 70 dB @ 25 kHz
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Intermodulation Attenuation
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> 65 dB
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Spurious Radiations
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< 2 nW
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MODEM
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Interface
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RS-232
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Interface Connector
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32-pin Eurocard connector type B
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Data Speed of Serial Interface
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1200 – 38400 bps
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Data Speed of Radio Interface
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19200 bps (25 kHz channel) / 9600 bps (12.5 kHz channel)
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Data format
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Asynchronous RS-232
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GENERAL
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Operating Voltage
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+6.0...+14.0 VDC
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Power Consumption (average)
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1.7 VA (Receive) 5.5 VA (Transmit) 0.05 VA (in Standby Mode)
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Operating Temperature Range
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-25 °C...+55 °C
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Vibration
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Not specifed
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Antenna Connector
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MMCX, 50 Ω, female
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Housing
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SATELLINE-3AS/TC is delivered without the housing. The component blocks on the PCB are covered by metal shields
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Size H x W x D
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13 x 100 x 123.5 mm
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Weight
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140 g
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Header Connector Pinout
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Pin#
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Signal Name
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In/Out
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Level
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Description
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A1
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GND
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-
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GND
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A3
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PWR_ON
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In
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0..+14VDC
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Radio modem On/Off control ( OFF = 0...+0.7VDC, ON = higher than +2.0VDC).
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A6
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PROG
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In
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0..+14VDC
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Must be normally UNCONNECTED or higher than +3.0 VDC Connect to ground in order to: a) access the setup menu b) update the program flash
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A14
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PWR_LED
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Out
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High Z / +5V
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POWER LED anode
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A15
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RD_LED
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Out
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High Z / +5V
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RD LED anode
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A17
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GND
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-
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GND
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A23
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PWR_IN
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In
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+ 6.0..14VDC
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Power Supply
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A24
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PWR_IN
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In
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+ 6.0..14VDC
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Power Supply
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A25
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FLASH
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In
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0..+14VDC
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Must be normally UNCONNECTED. Connected to PWR_IN in order to enter the FLASH bootmode programming.
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A31
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RSSI
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Out
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0..+4.5VDC
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RSSI analog output (option)
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B1
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GND
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-
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GND
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B3
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TX_A
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In
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RS-232
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Data FROM terminal unit TO radio modem Port 1
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B5
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RTS_A
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In
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RS-232
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Request To Send FROM terminal unit. Radio modem ignores this.
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B8
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RX_A
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Out
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RS-232
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Data TO terminal unit FROM radiomodem Port 1
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B9
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CTS_A
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Out
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RS-232
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Clear To Send. This signal indicates that radiomodem is ready to receive data FROM terminal unit.
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B11
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TX_B
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In
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RS-232
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Data FROM Hiper TO radio modem Port 2
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B13
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RTS_B
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In
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RS-232
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Request To Send FROM terminal unit. Radio modem ignores this.
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B16
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RX_B
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Out
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RS-232
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Data TO terminal unit FROM radio modem Port 2
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B17
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CTS_B
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Out
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RS-232
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Clear To Send. This signal indicates that radiomodem is ready to receive data FROM terminal unit.
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B24
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GND
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-
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GND
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Outside view of the Euro connector
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