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SP-900 900 Mhz. Spread Spectrum Modem
Data Sheets:
The
SP-900 is a valuable member of our 900MHz frequency-hopping family. The
SP-900 is built around a superior radio core. The proprietary
radio technology has evolved to meet the demands of the toughest
RF and physical environments. With superior noise rejection,
sensitivity, and extended temperature range, the SP-900 excels where
many other transceivers fail. The feature-rich SP-900 allows
easy interface to new and old field equipment.
A pair of SP-900s provides a practical and reliable alternative
to using traditional analog phone-line modems or "null-modem" serial
cable (RS-232) connections for data communications between serial
communications equipment. Moreover, wireless data communications
using the SP-900 means you will benefit from: greater flexibility
and freedom to relocate serial communications equipment; reduced
cabling hassles; eliminated requirement for access to wire-based
transfer media such as telephone lines; no ongoing access fees; and,
the ability to communicate through walls, floors and many other obstacles.
Applications: SCADA ,Telemetry,
Vehicle Data/Tracking ,Traffic Control,
Utilities/MeteringDisplay
Signs,Many More
The SP-900 is a robust
and reliable member of the Simrex Corporation family of RF modems. Our
attention to customer feedback has resulted in the most comprehensive
set of features for SCADA and telemetry applications. Users
now have the ability to deploy virtually any topology of network,
including unlimited repeater capability, RTS/CTS framing, Modbus
compatibility and many other data formats.
Features of
the SP-900
- Transmission within a public license-exempt band of the radio
spectrum (this means that the SP-900 can be used without access
fees such as those incurred by cellular airtime)
- DB9 RS-232 serial I/O data port with hardware flow control (allowing
the SP-900 to interface with virtually any communications device
with an asynchronous RS-232 port such as a computer)
- Supports point-to-point and point-to-multipoint, repeater operation
with user-configurable addressing
- No limit on the number of repeaters you can cascade.
- User-configurable encryption key maximizes security and privacy
of communications
- Twenty different user-selectable pseudo-random hopping patterns
to offer the possibility of separately operating multiple networks
while providing security, reliability and high tolerance to
interference
- Built-in CRC-16 error detection and auto re-transmit to provide
accurate and reliable data
- User selectable FEC
- FCC (Federal Communications Commission) and IC (Industry
Canada) approved
| Technical Specs |
| Data Interface |
Asynchronous RS-232, 9-pin female
D-sub |
| Signals |
Sig. Gnd, TX, RX, DCD, DSR, DTR,
RTS, CTS |
| Data Format |
8N1,8N2,8E1,8O1,7N1,7N2,7E1,7O1,9N1 |
| User Interface |
AT command line interface |
| Bandwidth/Data Rate |
2400 - 115,200 bps, uncompressed
half-duplex |
| Communications Range |
22 miles line-of-sight or more |
| Memory |
Non-volatile configuration memory |
| Operating Modes |
Point-to-Point, Point-to-Multipoint,
Repeater-Slave |
| Power Requirements |
9-30 VDC, 1 Amp |
| Power Consumption |
490 mA (Max) at 1W transmit, 200
mA receive (12VDc input) |
| Frequency (North American Version) |
902 - 928 MHz (other countries
on request) |
| System Gain |
137 dB |
| Sensitivity |
-107 dBm @ 10-6 |
| Minimum Signal for Synchronization |
-110 dBm |
| Out of Band Rejection |
>70dB |
| Inband Rejection |
>60dB |
| Adjacent Channel Rejection |
>50dB |
| Output Power |
1mW, 10mW, 100mW, 1W (user-configurable) |
| Spreading Code |
Frequency Hopping |
| Hopping Patterns |
60 pseudo-random, user selectable |
| Error Detection |
CRC-16 with auto-retransmit, FEC |
| Enclosure Material |
Milled aluminum, black baked powder
coat finish |
| Dimensions (WxDxH) |
Encl: 3.72" x 4.25" x 1.72" (95
x 108 x 44mm) |
| Antenna Connector |
Reverse gender TNC |
| Weight |
Approx. 420 grams |
| Operating Environment |
Temperature: -40 to +70°C;
Humidity: 5 to 95% non-condensing |
| Approvals |
FCC, IC |
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