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Hopper DS 2.4 A
Hopper DS 915 S Hopper DS 915 A Hopper DS 2.4 S Hopper DS 2.4 A Hopper FD 915 A Hopper FD 2.4 A

 

Hopper DS 2.4A Asynchronous RS232 Wireless Modem

 

Data
User data rates Up to 19200 half or full duplex; 38400 half duplex. Baud-rate can be selected using a PC connected to the modem serial port. Any terminal emulation program (e.g. Procomm) is suitable for this task.
Data Rate 7 or 8 data bits, odd, even, no parity, 1 or 2 stop bit.
Networking options Point-to-point, point-to-multipoint, multipoint-to-multipoint.
Repeaters Modem can be configured as repeater to extend range and coverage in DSSS mode.
Packet structure Data is grouped into packets for radio transmission.
Addressing 255 unique addresses, 1 broadcast address, multicasting possible.
Security Unique password to prevent eavesdropping and unauthorized transmission
Error Control ARQ error control using CRC.
Buffering 509 byte internal buffer; 1018 bytes buffer configure as repeaters.

Data Interface
Signaling Standard RS-232
Connector DB-25 female with 4 - 40 thread screw locks.
Lines supported Tx, Rx, Gnd, CTS, RTS, DTR, DSR, DCD, RI.
Indicators Multicolor LED: green = receiving, red = transmitting, yellow = idle.
Power LED: green when modem has power

Configuration
Wire Interface Menu and AT command set

Transceiver
RF band 2.4000-2.4835 GHz ISM band
Modulation Direct-sequence spread spectrum, FCC part 15 and IC RSS-210and RSS-139 compliant.
RF transmit power 26 dBm (400mW)
Receiver Sensitivity - 94 dBm
Chip Rate 2.5 Mchips/s
PN Code Length 63, 127, 255, or 511 chips.
Mainlobe 6 dB BW 3 MHz at 2.5 Mchips/s
Center frequency User configurable over entire band using PC interface.
Antenna:
standard: 1/2 wavelength "rubber ducky" dipole antenna.
optional: high gain antenna. Please contact a Wi-LAN application engineer to discuss the permissible use of directional antennas with this product.

Mechanical
Dimensions 21.5 x 13.5 x 5.5 cm (8.5 x 5.25 x 2.25 inches)
Weight (approx.) 1.1 kg (2.4 lb.)
Case material Aluminum extrusion with black powder coat
Antenna length standard antenna 15.2 cm (6.0 inches)

Environmental
Temperature range -40°C to +70°C
Humidity 90%, non condensing, maximum.

Power
Supply voltage 8.5-14 V dc from Wi-LAN wall plug (supplied with all units)
Power input 2.1 mm female jack, center positive
Current demand 220 mA during idle/receive, 600 mA during transmit @12VDC

Warranty 1 year parts and labor

Certification FCC and Industry Canada Certified.

Licensing No further licensing required in countries providing unlicensed bands


* Specifications are subject to change without notice.

 

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Copyright © 1998 AIRLINX Communications, Inc.
Last modified: March 03, 1999