TS4000 Radio Modem User’s Manual Appendix C - Specifications 82
Appendix C - Specifications
General
Data Rates 300, 1200, 2400, 4800, 9600, 19200, 38400 baud
Data Interface
Data Format Asynchronous, Word Length: 7 or 8 bits,
Parity: Even, Odd or None
Signal Levels RS-232, TTL (Port 1 only),
RS-485 (with adapter)
Handshake Protocols Full Handshake: Supports RTS, CTS, DCD, DSR, DTR
Data Activation (3 wire): Requires only TXD, RXD and SG
Data Only Time Out 1 to 500 character periods
Data Connector 9 pin D, female, DCE (standard case)
LEMO sealed connector (watertight case)
Frequency Ranges 132-174, 380-512, 928-960 MHz
Radio - General (varies
based on specific model)
Transmit Power 0.1 to 5 watts (programmable),
External amplifiers available for up to 100 watts
Channel Spacing 5, 6.25, 7.5, 10, 12.5, 15, 25 kHz
Carrier Detect Threshold -110 to -60 dBm (programmable)
Number of Channels 99 receive/transmit pairs (in non-volatile memory)
Channel Rate 2,400 to 19,200 bps
Modulation GMSK
RF Connector BNC, female, 50 Ω (standard case)
TNC, female, 50 Ω (watertight case)
N, female, 50 Ω (optional)
SMA, female, 50 Ω (optional)
Data Protocol Transparent or Packet
Channel Options
Data Security 254 Selectable Scrambling Codes
FEC (Coding) None or 12,8 Hamming code with 16 bit Interleaving
Channel Access Master-Slave or Carrier Sense Multiple Access (CSMA) with
Programmable Attempt Rate
Optional Packet Protocol
Protocol Automatic Repeat reQuest (ARQ)
Packet Size 1 to 5000 characters
Retries 0 to 50 per packet
Address Space 999 Individual Addresses per Group
60 Groups
Transfers Individual with Acknowledgment (to any address)
Individual without Acknowledgment (to any address)
Group Broadcast (to all addresses in a single group)
Network Broadcast (to all addresses in all groups)
Multicast Reception (from up to 20 other groups)
Relay Operation Store and Forward with Address Filtering
Supply Voltage 9 to 28 VDC (the low voltage depends on the specific model)
General
Power 1.0 watts - Standby (typical)
1.5 watts - Receive (typical)
7 to 30 watts - Transmit (depends on transmit power)
Power Connector 2 pin Molex or through serial port
Data Buffer 32 KByte SRAM
Program Storage 256 KByte Flash ROM (supports in field firmware upgrades)
LED Indicators Transmit, Receive, Power
Operating Temperature -22 to +140 °F (-30 to +60 °C)
Dimensions 4.3" x 3.1" x 1.8" (109 mm x 79 mm x 46 mm) w/o heat sink
5.0" x 3.1" x 1.8" (127 mm x 79 mm x 46 mm) with heat sink
Enclosure Options Standard and Watertight
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