ICP DAS USA SST-2400EXT User manual

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Wireless Radio Modem Users ManualRev:B1.2
Warranty
All products manufactured by I P DAS are warranted
against defective materials for a period of one year from the date
of delivery to the original purchaser.
Warning
I P DAS assume no liability for damages consequent to
the use of this product. I P DAS reserves the right to change this
manual at any time without notice. The information furnished by
I P DAS is believed to be accurate and reliable. However, no
responsibility is assumed by I P DAS for its use, nor for any in-
fringements of patents or other rights of third parties resulting from
its use.
Copyright
opyright 1999 by I P DAS. All rights are reserved.
Trademark
The names used for identification only maybe registered
trademarks of their respective companies.
Wireless Radio Modem
Users Manual
Date:2001-10

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Wireless Radio Modem Users Manual Rev:B1.2
Table of Contents
1. Introduction.....................................................4
1.1 Block Diagram ...........................................4
1.2 Specifications.............................................5
1.2.1 SST-900EXT Wireless Radio Modem ......... 5
1.2.2 SST-2400EXT Wireless Radio Modem ....... 6
1.2.3 SST-900A External 900M z Antenna......... 7
1.2.4 SST-2400A-3 External 2.4G z Antenna ..... 7
1.2.5 SST-2400A-12 External 2.4G z Antenna ... 8
1.2.6 SST-2400A-13 External 2.4G z Antenna ... 8
1.3 Pin Assignment ..........................................9
1.4 Jumper Setting .........................................10
1.5 ire Connection ......................................11
1.6 Dimension ................................................14
1.6.1 SST-900EXT and SST-2400EXT .............. 14
1.6.2 DIN-RAIL Mounting ................................. 15
1.6.4 Pannel Mounting ........................................ 16
2 Configuration .................................................17
2.1 Full-duplex and Half-duplex....................17
2.2 Synchronous and Asynchronous..............18
2.3 Configuration Select ................................19
2.4 Operation Mode 1 ....................................20

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Wireless Radio Modem Users ManualRev:B1.2
2.5 Operation Mode 2 ....................................21
2.6 Operation Mode 3 ....................................22
3 Application .....................................................23
3.1 Peer-to-Peer Communication...................23
3.2 Asynchronous Connection .......................24
3.3 Multiple PCs Communication .................25
3.4 Connect I-7000 Modules .........................26
3.5 Communication Bridge............................27
3.6 Network Communication.........................28

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Wireless Radio Modem Users Manual Rev:B1.2
1. Introduction
The SST-900 and SST-2400 are radio modems that can be
used in multiple access networking. The transmission method in-
cludes peer-to-peer, multi-point structure for wireless data
communication. Based on direct sequence spread spectrum and
RF technology operating in ISM bands, 902-928Mhz for SST-900
and 2400-2483.5MHz for SST-2400.
1.1 Block Diagram

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Wireless Radio Modem Users ManualRev:B1.2
1.2 Specifications
1.2.1 SST-900EXT Wireless Radio Modem
RF Communication Transceiver
Frequency Band : 909 to 924 MHz for SST-900
hannel Spacing : 2.048 MHz (8 channels jumper select)
Output Power : 20±2 dBm
Modulation : GMSK
Time Division Duplexing
Transimition Range : Max 300M
SST Transceiver
Direct Sequency Spread Spectrum
Non-Overlapping hannels : 8 channels, jumper select (only for
full-duplex operation)
Full-duplex or Half-duplex, jumper select
Synchronization or Asynchronization, jumper select
Serial Communication Interface
RS-232(TxD, RxD, GND) and RS-485(D+, D-), jumper select
Baudrate : 600bps to 57600bps, jumper select
Environment
Operating Temperature : 0° to 50°
Storage Temperature : -30° to 70°
Power Supply
Input : +10 to +30VD , unregulated
onsumption : 1.5W

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Wireless Radio Modem Users Manual Rev:B1.2
1.2.2 SST-2400EXT Wireless Radio Modem
RF Communication Transceiver
Frequency Band : 2426 to 2458 MHz
hannel Spacing : 2.048 MHz (8 channels jumper select)
Output Power : 20±2 dBm
Modulation : GMSK
Time Division Duplexing
Transimition Range : Max 300M with bundled antenna
Max 1000M with SST-2400A-3 antenna
Max 5000M with SST-2400A-12 antenna
Max 5000M with SST-2400A-13 antenna
SST Transceiver
Direct Sequency Spread Spectrum
Non-Overlapping hannels : 8 channels, jumper select (only for
full-duplex operation)
Full-duplex or Half-duplex, jumper select
Synchronization or Asynchronization, jumper select
Serial Communication Interface
RS-232(TxD, RxD, GND) and RS-485(D+, D-), jumper select
Baudrate : 600bps to 57600bps, jumper select
Environment
Operating Temperature : 0° to 50°
Storage Temperature : -30° to 70°
Power Supply
Input : +10 to +30VD , unregulated
onsumption : 1.5W

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Wireless Radio Modem Users ManualRev:B1.2
1.2.3 SST-900A External 900MHz Antenna
External antenna for SST-900EXT
Maximum Distance : 1000M
Weight : 1000g
Antenna Gain : 5dB
1.2.4 SST-2400A-3 External 2.4 Hz Antenna
External antenna for SST-2400
Maximum Distance : 1000M
Weight : 150g
Antenna Gain : 3dB

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Wireless Radio Modem Users Manual Rev:B1.2
1.2.5 SST-2400A-12 External 2.4 Hz Antenna
External antenna for SST-2400
Maximum Distance : 5000M
Weight : 850g
Antenna Gain : 12dB
1.2.6 SST-2400A-13 External 2.4 Hz Antenna
External antenna for SST-2400
Maximum Distance : 5000M
Weight : ???g
Antenna Gain : ??dB

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Wireless Radio Modem Users ManualRev:B1.2
1.3 Pin Assignment
DSR Reserved signal of diagnostic
RX Receive of RS-232
TX Transimit of RS-232
GND Ground of RS-232
(Y)D+ Data+ of RS-485
(G)D- Data- of RS-485
(R)+Vs +10 to +30V D power supply input
(B)GND Ground of power supply input

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Wireless Radio Modem Users Manual Rev:B1.2
1.4 Jumper Setting
Factory default jumper setting :
(1) hannel 3 (2) Frequency 915.968/2439.936MHz
(3) Baudrate 9600bps (4) Full-duplex
(5) Slave (6) Synchronous
(7) Interface RS-232

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Wireless Radio Modem Users ManualRev:B1.2
1. Wire Connection
Wire Connection for PCs RS-232 and SST-900/2400 :
1. The jumper(7) position in
RS-232 side
2. onnect SST-900/2400s
GND to A-0910s GND,
TX to TX and RX to RX.
3. onnect A-0910s DB-9
female connector to P s
RS-232 DB-9 male
connector.
Wire Connection for I-7000 and SST-900/2400 via RS-485
1. The jumper(7) position in
RS-485 side.
2. D+ of SST-900/2400 to D+
of RS-485 bus.
3. D- of SST-900/2400 to D-
of RS-485 bus.

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Wireless Radio Modem Users Manual Rev:B1.2
Connect SST-900EXT with SST-900A
Connect SST-2400EXT with SST-2400A-3

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Wireless Radio Modem Users ManualRev:B1.2
Connect SST-2400EXT with SST-2400A-12
Connect SST-2400EXT with SST-2400A-13

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Wireless Radio Modem Users Manual Rev:B1.2
Rear View
Front View Side View
Bottom View
Top View
1.6 Dimension
1.6.1 SST-900EXT and SST-2400EXT

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Wireless Radio Modem Users ManualRev:B1.2
1.6.2 DIN-RAIL Mounting
Antenna of
SST-2400EXT
Antenna of
SST-900EXT

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Wireless Radio Modem Users Manual Rev:B1.2
1.6.4 Pannel Mounting

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Wireless Radio Modem Users ManualRev:B1.2
2 Configuration
2.1 Full-duplex and Half-duplex
Full-duplex is to transimit and receive data at the same
time, and half-duplex is to transimit and receive data at seperate
time. While using full-duplex mode, only peer-to-peer operation
is available. For work in multi-point operation, half-duplex is the
only choice.
While working in full-duplex mode, one of the two com-
munication modules is set as master and the other is set as slave.
And both modules have same baudrate, frequency and channel
select.
While working in half-duplex mode, the all modules have
the same configuration. The baudrate and frequency select need
all the same, and all modules select slave mode. The channel se-
lect is invalid for half-duplex mode. In half-duplex mode, only
one module may transimit at the same time. If more than one mod-
ule transimit data at the same time, the received data is not correct.

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Wireless Radio Modem Users Manual Rev:B1.2
2.2 Synchronous and Asynchronous
In synchronous mode is that the serial data need to
specificed format, 1 start bit, 8 data bits, no parity bit and 1 stop
bit.The data is readed in fixed data format and transimt. The re-
ceiver receive the data and output the data in fixed data format.
In asynchronous mode, the data is sampled and then
transimit. And the receiver received data and regenerate the data
by the sampled data. For the limitation of sampling rate of 32KHz,
the data rate is limited to 14.4Kbps in order to prevent the distor-
tion of the output data. While using asynchronous mode, only RS-
232 interface may work.

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Wireless Radio Modem Users ManualRev:B1.2
2.3 Configuration Select
There are 3 different configuration of SST-900 and SST-
2400 modules.
Operation Mode 1 : Full-duplex, Synchronous
Peer-to-peer communication
One master configuration and one slave configuration
Max baudrate : 19200bps
Fixed data format : 1-bit start, 8-bit data, no parity, 1-bit stop
Operation Mode 2 : Half-duplex, Synchronous
Multiple nodescommunication
All slave configuration
Max baudrate : 57600bps
Fixed data format : 1-bit start, 8-bit data, no parity, 1-bit stop
Delay between transimit and receive
hannel select is disabled
Operation Mode 3 : Full-duplex, Asynchronous
Peer-to-peer
One master configuration and one slave configuration
Max baudrate : 14400bps
Variable data format
RS-232 interface only

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Wireless Radio Modem Users Manual Rev:B1.2
2.4 Operation Mode 1
Operation mode 1 is full-duplex, synchronous, fixed data
format communication configuration. The mode is the most com-
mon mode for peer-to-peer communication. This mode may en-
code the input data streams and transimit to the other SST modules.
And the other modules may decode the data streams and put into
serial communication line. This may decrease the communication
error rate and increase the communication stability.
Jumper Seeting : Refer Sec.1.4 for detail
(1) : Select one channel
(2) : Select one frequency
(3) : Select one baudrate, max 19200 bps
(4) : Full-duplex
(5) : Select master or slave
(6) : Synchronous
(7) : RS-232 or RS-485
Benefits :
1. Most stable communication
2. Full-duplex communication
Limitation :
1. Fixed data format
2. Peer-to-peer only
3. Baudrates up to 19200 bps