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Aleph Solutions Related Hardware Options
BSC (Base Station Controller):
 

Aleph's wireless Modem WM2000
Modem WM2000 Back Panel.
 
RADIO CHANNEL PERFORMANCE

Data Rate
4800 BPS
Undetected BIT Error Rate
Error Free = 1 in 10 billion
Sensitivity
10 E-3 BER@12dB Sinad
Synchronization
Maintains sync down to 9dB Sinad
Forward Error Correction
Advanced Reed-Solomon
Channel Contention Control
Modified Digital Sense Multiple Access (MDSMA)
(Bit Level Sense)

 

TWO-WAY RADIO INTERFACE

Transmit Audio Level output
0.25-1.25 Vpp into 1k ohm.
Receive Audio Level Input
0.2V-1.25V into12k ohms
Radio Controls
Key Relay, Muting Relay, Voice Allow, CH Busy Input.
Audio Equalization
DSP equalizes audio distortion
Connector
Very high density 15 pins D subminiature connector for radio and power I/O.


PROCESSOR AND DSP

DSP
TMS320c25 Digital Signal Processor
BUS
32 bits
U-PROCESSOR
80c31
MEMORY
SRAM and EEPROM
Main Frequency
40 MHz


PHYSICAL

Size
1.5"H x 8.1"W x 4.3"D
(38mm H x 206mm W x 108mm D)

Weight
0.8lbs(0.4kg)

 

ENVIRONMENTAL

Operating Temperature
0 C-75 C
Storage Temperature
-30 C-90 C
Shock and Vibration
Exceeds EIA RS-374A
Humidity
0-95% RH, non-condensing
Altitude
SL --10,000ft


 

RADIO CHANNEL PROTOCOL

Modulation
8PSK, 16QAM, DSP software configurable
Channel Contention
Modified Digital Sense Multiple Access (MDSMA)
Forward Error Correction
Advanced Reed-Solomon
Address Capacity
4096 or up
Address Grouping
All Call, Group Call and Select Call.

 

 

DATA INTERFACE

Data Formats
RS-232 Asynchronous
8 date bits, one start bit and one stop bit.
Software programmable
Baud Rate
600-153,600 baud software programmable
Connector
8x5 RJ45 gang jack
Serial Port1
Main port, may connected with palmtop, laptop, etc.
Serial Port2
Print port, software programmable.
Serial Port3
Card Reader port, software programmable.
Serial Port4
Taxi Meter port, software programmable.
Serial Port5
GPS port, software programmable.

POWER

Power input
10-18VDC
Power output
+3.5V, +5V, +7.5V, +9V DC Selectable

 

.POWER REQUIREMENTS

Voltage
10-18 VDC
Current
300 mA

 

 

 
 
ALEPH The Whole Solution, End to End
 

Aleph,Inc.
5858 Horton St. Suite 263 Emeryville, CA 94608 Phone: 510.450.0880 Fax: 510.450.0110
1 Woodbridge Center Dr. Suite#515 Woodbridge, NJ 07095 Tel: 732.326.0700 Fax: 732.326.0739

Copyright © Aleph, Inc 2002, All Rights Reserved.