Satel SATELLINE-M3-R1 User manual

Version 3.3
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SATELLINE-M3-R1
and
SATELLINE-M3-T1
Receiver and Transmitter
Radio Modem Modules
User Guide

Version 3.3
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IMPORTANT NOTICE
All rights to this manual are owned solely by SATEL OY (referred to in this user guide as SATEL).
All rights reserved. The copying of this manual (without written permission from the owner) by
printing, copying, recording or by any other means, or the full or partial translation of the
manual to any other language, including all programming languages, using any electrical,
mechanical, magnetic, optical, manual or other methods or devices is forbidden.
SATEL reserves the right to change the technical specifications or functions of its products, or to
discontinue the manufacture of any of its products or to discontinue the support of any of its
products, without any written announcement and urges its customers to ensure that the
information at their disposal is valid.
SATEL software and programs are delivered ”as is”. The manufacturer does not grant any kind
of warranty including guarantees on suitability and applicability to a certain application. Under
no circumstances is the manufacturer or the developer of a program responsible for any
possible damages caused by the use of a program. The names of the programs as well as all
copyrights relating to the programs are the sole property of SATEL. Any transfer, licensing to a
third party, leasing, renting, transportation, copying, editing, translating, modifying into another
programming language or reverse engineering for any intent is forbidden without the written
consent of SATEL.
SATEL PRODUCTS HAVE NOT BEEN DESIGNED, INTENDED NOR INSPECTED TO BE USED
IN ANY LIFE SUPPORT - RELATED DEVICE OR SYSTEM - RELATED FUNCTION NOR AS A
PART OF ANY OTHER CRITICAL SYSTEM AND ARE GRANTED NO FUNCTIONAL WARRANTY
IF THEY ARE USED IN ANY OF THE APPLICATIONS MENTIONED.
Salo, Finland 2009
Copyright: 2009 SATEL Oy
No part of this document may be reproduced, transmitted or stored in a retrieval system in any form or by any means without the
prior written permission of SATEL Oy. This document is provided in confidence and must not be distributed to third parties
without the express permission of SATEL Oy.

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RESTRICTIONS ON USE
SATELLINE-M3-R1 and -M3-T1 radio modem modules have been designed to operate on
403...470 MHz, the exact use of which differs from one region and/or country to another. The
user of a radio modem must take care that the said device is not operated without the
permission of the local authorities on frequencies other than those specifically reserved and
intended for use without a specific permit.
WARNING! Users of SATELLINE-M3-R1 and -M3-T1 radio modem modules in North America
should be aware that due to the allocation of the frequency band 406.0 – 406.1 MHz for
government use only the use of radio modem on this frequency band without a proper permit is
strictly forbidden.
WARNING! Users of SATELLINE-M3-R1 and -M3-T1 radio modem modules in Canada should
be aware that Operation is subject to the following two conditions: (1) this device may not cause
interference, and (2) this device must accept any interference, including interference that may
cause undesired operation of the device.

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PRODUCT CONFORMITY
SATELLINE-M3-R1 and -M3-T1
SATEL Oy hereby declares that SATELLINE-M3-R1 and -M3-T1 radio modem modules are in
compliance with the essential requirements (radio performance, electromagnetic compatibility
and electrical safety) and other relevant provisions of Directive 1999/5/EC. Therefore the
equipment is labelled with the following CE-marking. The notification sign informs users that the
operating frequency range of the device is not harmonised throughout the market area, and the
local spectrum authority should be contacted before the usage of the radio modem is used.
0523

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WARRANTY AND SAFETY INSTRUCTIONS
Read these safety instructions carefully before using the product:
oThe warranty will be void if the product is used in any way that is in contradiction with the
instructions given in this manual, or if the radio modem housing has been opened or
tampered with.
oThe radio modem is only to be operated at frequencies allocated by local authorities,
and without exceeding the given maximum allowed output power ratings. SATEL and its
distributors are not responsible if any products manufactured by it are used in unlawful
ways.
oThe devices mentioned in this manual are to be used only according to the instructions
described in this manual. Faultless and safe operation of the devices can be guaranteed
only if the transport, storage, operation and handling of the devices is appropriate. This
also applies to the maintenance of the products.

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TABLE OF CONTENTS
IMPORTANT NOTICE ............................................................................................2
RESTRICTIONS ON USE ........................................................................................3
PRODUCT CONFORMITY ...................................................................................... 4
WARRANTY AND SAFETY INSTRUCTIONS............................................................. 5
TABLE OF CONTENTS ........................................................................................... 6
1.INTRODUCTION ......................................................................................... 8
1.1Description of the products .......................................................................8
2TECHNICAL SPECIFICATIONS ...................................................................... 9
2.1SATELLINE-M3-R1 and -T1 Technical Specifications ................................. 9
2.1.1Power supply.......................................................................................................10
2.2Basic configuration and installation ....................................................... 11
3SERIAL INTERFACE .................................................................................... 12
3.1D-15 connector........................................................................................ 13
4RF INTERFACE ........................................................................................... 15
4.1Transmitter ............................................................................................. 15
4.2Receiver .................................................................................................. 15
4.2.1RSSI-signal..........................................................................................................16
4.3Error correction ....................................................................................... 16
4.4Error checking......................................................................................... 16
5USER INTERFACE....................................................................................... 17
5.1LED-indicators......................................................................................... 17
6TRANSPARENT DATA TRANSMISSION ...................................................... 18
6.1Handshaking lines.................................................................................. 18
6.1.1CTS-line .............................................................................................................18
6.1.2RTS-line ..............................................................................................................18
6.2Pause length ........................................................................................... 19

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6.2.1Data buffering in the radio data modem ...............................................................19
6.2.2TX-delay .............................................................................................................20
7ADDRESSING............................................................................................ 21
7.1Addressing.............................................................................................. 21
7.1.1Connection between two points ............................................................................23
7.1.2System of one base station and several substations ................................................23
8SETTINGS ................................................................................................. 25
8.1SATEL Configuration Manager software ................................................. 25
8.2Changing parameters using the SL-COMMANDS ................................... 25
8.2.1SL-Command......................................................................................................25
8.3SATELLINE SL COMMANDS LIST ..............................................................26
8.4SL-commands available by using the SATEL Configuration Manager .... 29
8.5Command table description....................................................................31
9PROGRAMMING....................................................................................... 35
9.1Flash update ........................................................................................... 35
10CHECKLIST ................................................................................................ 36
11APPENDIX A ............................................................................................. 37
11.1Functional delays .................................................................................... 37
11.2Transmission related delays ................................................................... 37

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1. INTRODUCTION
SATEL OY is a Finnish electronics and Telecommunications Company specialising in the design
and manufacture of wireless data communication products. SATEL designs, manufactures and
sells radio modems intended for use in applications ranging from data transfer to alarm relay
systems. End-users of SATEL products include both public organisations and private individuals.
SATEL is the leading European manufacturer of radio modems. SATEL radio modems have been
certified in most European countries and also in many non-European countries.
1.1 Description of the products
SATELLINE-M3-R1
is a UHF radio receiver module that is radio compatible with SATELLINE-3AS(d) radio
transceivers or transmitters.
SATELLINE-M3-T1
is a UHF radio transmitter module. It provides a transparent one-way data link with SATELLINE-
3AS(d) receivers or transceivers.
The modules consist of printed circuit board (PCB), sheet metal covers and connector(s).
Receiver module layout (transmitter module layout is similar).

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2TECHNICAL SPECIFICATIONS
2.1 SATELLINE-M3-R1 and -T1 Technical Specifications
SATELLINE-M3-R1 and -M3-T1 complies with the following international standards:
•EN 300 113-2
•EN 301 489 (EMC-requirements)
•EN 60950 (Safety Standard)
RECEIVER TRANSMITTER Note!
Frequency Range 403...470 MHz
Channel Spacing 12.5 kHz / 20 kHz / 25 kHz selectable
Tuning range 67 MHz
Spurious Radiations < 2 nW
Frequency error
tolerance < 3 kHz
Sensitivity
- 113... -110 dBm
(BER < 10 E-3) FEC On
Co-channel Rejection > 10 dB FEC On
Adjacent Channel
Selectivity > 45 / 50 dB FEC On
Intermodulation
Attenuation >55 dB FEC ON
Blocking 74 dB FEC ON
Spurious Rejection 60 dB FEC On
Spurious Emission -57 / -47 dBm
-100 dBm on
GPS-
frequencies
Power Consumption <1.2 W
<3 W @ 0.5W output power
<6 W @ 1W output power
Power Consumption,
Sleep ON 0.24 W typical
Type of Emission F1D
Carrier power 100, 200, 500, 1000 m W
A
djacent Channel
Power
300 113 and CRF47 part90
Carrier power stability < ±1.5 dB
DATA MODEM
Timing RS-232
Electrical Interface RS-232 & LVTTL or RS-232 & TTL Order options
Interface Connector D-15 (female)
Data speed of
I/O-interface 300 – 38400 bps
Data speed of Radio
Interface
19200 bps (25 kHz channel) /
9600 bps (12.5 kHz channel)
Data Formats Asynchronous data
Modulation 4FSK, GMSK Optional:Trimtalk

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GENERAL
Operating Voltage + 6.0 … +30 Vdc
Operating Temperature
Range
-30
°C ... +65 °C
(Tx)
-30 °C ... +80 °C (Rx)
Antenna Connector 50 ohm, SMA, Female
Construction PCB with sheet metal EMI shields
Size L x W x T 96 mm x 56 mm x 9 mm
Weight 150 g
OTHER MEASURES
ESD-failure threshold 8 kV contact, 15 kV air discharge
2.1.1 Power supply
The allowed operating voltage is 6V - 30 VDC. The radio modem must only be connected to a
power supply with an adequate current output.
NOTE! There is a galvanic connection between the signal ground (SGND, pin 7), ground
(GND, pin 8), outer conductor of antenna connector and modem casing.
The power cable (+Vband GND) must be connected to a power supply with a proper output
voltage and with a minimum output current of 1A.
The modem withstands a live insertion or removal from the DTE-unit without switching OFF the
power.

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2.2 Basic configuration and installation
The radio modem is shipped with the following default settings (unless otherwise specifically
ordered):
DEFAULT VALUES OF THE
A
DJUSTABLE SETTINGS ( the user can change these settings later on )
Setting Default value
Notes
Operating frequency 436.500 MHz
Range:
403-407
MHz
Channel Spacing 25 kHz Range:12.5, 20, or 25 kHz
Tx Power 1000 mW
Range: 100, 200,
500 or 1000 mW
Protocol SATEL 3AS
SATEL 3AS, Option 1, Option 2
Addressing RX Address OFF
/
TX Address OFF
Tx-Delay 0 ms
Signal threshold -117 dBm
SyncInterval default (=21845 bytes)
Rx-Delay 0 ms
Pause length 3 characters
FEC OFF
Error check OFF
Error correction OFF
Serial port 1 settings Port function=DATA
Data speed=9600 bps
Data bits=8
Parity=None
Stop bits=1
Pause length=3 bytes
Handshaking settings CTS=Clear to send
CD=RSSI threshold
RTS=Ignored
Handshaking lines apply to the DATA-port.
SL-commands ON
When creating a test connection, you can also use the Windows-based SATEL Configuration
Manager, (available for free from authorised SATEL dealers or directly from SATEL Customer
Support).
Basic settings for the serial port of the host computer, when using a terminal program to
communicate with SATEL radio modems, are as follows: “COM1, 9600 bps, 8-bit data, none
parity, 1 stop bit”.

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3SERIAL INTERFACE
The radio modem is referred to as DCE (Data Communication Equipment) whereas the PC or
equivalent device is referred to as DTE (Data Terminal Equipment). The SATELLINE-M3-R1 and -
M3-T1 radio modules include a 15-pin ‘D’-type female connector, which contains all the
connections required to establish communication between the radio modem, acting as the DCE,
and the PC, acting as the DTE.
The radio modem contains one serial port, which is designated as Port 1 for communication.
oRD = Receive Data. Output of the data received from the radio modem to the DTE.
oTD = Transmit Data. Input of the data to be transmitted from the DTE to the radio
modem.
oCTS = Clear To Send.
oRTS = Request To Send.
oGND = Both the negative pole of the operating voltage and the signal ground.
oVb= Positive pole of the operating voltage.

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3.1 D-15 connector
D-15 female connector in the radio modem
Pinout of the D-15
15-PIN FEMALE D CONNECTOR PINOUT
oDTE is an abbreviation for Data Terminal Equipment
oI/O column below denotes the direction of the signal:
"IN" is from DTE to the radio modem, "OUT" is from the radio modem to the DTE.
PIN NAME I/O LEVEL EXPLANATION
1 DTR IN TTL/LVTTL
Data Terminal Ready to Power Down the radio module.
Open = Normal Data Transfer Mode.
Ground= Power Down; low current consumption mode.
2 CTS OUT TTL/LVTTL
Port 2 Clear to send
3 RD OUT TTL/LVTTL
Port2
Receive Data to DTE from the radio modem
4 TD IN TTL/LVTTL
Port2
Transmit Data from DTE to the radio modem.
5 RTS IN TTL/LVTTL
Port2 Request To Send from DTE.
6 CTS OUT RS-232 Clear To Send.
7, 8 GND - Operating Ground and Signal Ground
9 RD OUT RS-232 Port1 Receive Data to DTE from the radio modem
10 N.C. Not Connected
11 TD IN RS-232 Port1 Transmit Data from DTE to the radio modem.
12 ______
MODE
IN 0..30V <2VDC or connected to ground = Programming Mode
>3VDC or Not connected = Data Transfer Mode Note*)
13 RTS IN RS-232 Request To Send from DTE.
14,
15
V
b- Operating Voltage.
+6...30 VDC
1. Note! Unused pins can be left unconnected.
2. Note*) Programming Mode is for changing the settings of the radio modem with a terminal program
via the programming menu. Normally the MODE-line is NOT connected i.e. the radio modem is in Data
Transfer Mode.
3. The default port is Port 1. Port 2 is set by special command.

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Description of pins:
1. DTR. Data Terminal Ready.
When open or connected to + Voltage the unit is ready for normal transfer mode.
When connected to Ground the unit goes to low current consumption mode.
OFF<2.7V. ON>3V-30V.
2. Port 2. CTS. Clear To Send.
TTL-Signal from modem to DTE.
3. Port 2. RD. Receive data.
TTL-Signal from modem to DTE. Asynchronous serial data.
4. Port 2. TD. Transmit data.
TTL-Signal from DTE to modem. Asynchronous serial data.
5. Port 2. RTS. Request to Send.
TTL-Signal from DTE to modem.
6. Port 1. CTS. Clear To Send.
Signal from modem to DTE.
7, 8. GND. Ground
Main voltage minus. Signal and chassis ground.
9. Port. 1. RD, Receive Data.
RS-232 Signal from modem to DTE. Asynchronous serial data.
10. Not Connected.
11. Port 1. TD, Transmit Data
RS-232 Signal from DTE to modem. Asynchronous serial data.
12. MODE.
Programming pin. When connected to + Voltage the unit is in normal mode. When connected
to Ground the unit is in programming mode.
13. Port 1. RTS, Request To Send
Signal from DTE to modem.
14, 15. PWR
+VDC. Main voltage input. The radio module is designed for 6-30VDC +/- 5%.
NOTE!
Port definition. Port 1 or 2 can be defined using the Configuration Manager. When the Program
switch of the adapter is switched ON (Programming-mode) the default Port is always Port 1.
When the Port has been defined, it’ll be activated by switching the Power OFF-ON, or switching
the Program Switch switched to OFF.

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4RF INTERFACE
The SATELLINE-M3-R1 and -M3-T1 module has a single antenna connector with an impedance
of 50 ohm.
The user can change the frequency of the radio modem afterwards within the frequency range.
The data speed of the radio interface depends on the chosen radio channel spacing. A channel
spacing of 25 kHz enables a data speed of 19200 bps and a channel spacing of 12.5 kHz and
20 kHz enables, correspondingly, a data speed of 9600 bps. The data speed of the radio
interface is always fixed (19200 bps or 9600 bps), irrespective of the data speed of the serial
interface. If the data speeds of the radio interface and the serial interface differ from each other,
the radio modem will temporarily buffer the data in transfer, so no data loss will occur.
4.1 Transmitter
The output power of the transmitter is adjustable between 100, 200, 500 or 1000 mW. The
greatest allowable power depends on limits set by local authorities, which should not be
exceeded under any circumstances. The output power of the transmitter should be set to the
smallest possible level which still ensures error free connections under variable conditions. Large
output power levels using short connection distances can, in the worst case, cause disturbances
to the overall operation of the system.
4.2 Receiver
The Signal Threshold Level setting of the receiver determines a level above which the search for
the actual data transfer signal is active. If the Signal Threshold Level setting is set too low, it is
possible that the receiver is trying to synchronise itself with noise, in which case, the actual data
transmission might remain unnoticed. Alternatively, weak data transmissions will be rejected,
even though they would be otherwise acceptable.
NOTE!
Setting the radio data modem output power level to that which exceeds the regulations set
forth by local authorities is strictly forbidden. The setting and/or using of non-approved
power levels may lead to prosecution. SATEL and its distributors are not responsible for any
illegal use of its radio equipment, and are not responsible in any way of any claims or
penalties arising from the operation of its radio equipment in ways contradictory to local
regulations and/or requirements and/or laws.

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4.2.1 RSSI-signal
The RSSI-signal (Received Signal Strength Indicator) gives an indication of the strength of the
received radio signal. This signal can be used to determine the approximate signal level. The
RSSI–signal can be set and read using the SL-command.
4.3 Error correction
The error correction mode is called the FEC-method (Forward Error Correction). When
activated, the FEC-function will cause the SATELLINE-M3-R1 and -M3-T1 to automatically add
additional error correction information, which increases the amount of transmitted data by 30 %.
It is used by the receiving radio modem to correct erroneous bits - as long as the ratio of correct
and erroneous bits is reasonable.
Error correction improves the reliability of data transfer via the radio interface especially in
unfavourable conditions. The FEC-function should be used when link distances are long and/or
if there are many disturbances in the radio channels used. The use of the FEC-function will,
however, decrease the data transfer throughput of data by about 30 %.
4.4 Error checking
When error checking is switched on, the radio modem will add a checksum to the transmitted
data. When the data is received, the checksums are verified before data is forwarded to the
serial port.
NOTE!
All radio modems that are to communicate with each other must have the same setting for
FEC (ON or OFF). If the transmitting radio modem and the receiving radio modem have
different settings, data will not be received correctly.

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5USER INTERFACE
5.1 LED-indicators
There are four (4) LED-indicators on the front panel of the radio modem, and they give an
indication of the status of the serial port and the radio interface:
LED Indication OFF Red
Red, Flashing
Power ON/OFF Inactive Active
RSSI Signal strength No data Data detected
and ok
Data detected,
but weak signal
RX/TX Data indicator No data
transferred
Data transfer
Mode Communication
or programming
Data Mode
Programming
mode
Description of the LED-indicators:
•Power indicates the status of Power ON/OFF
•RSSI indicates the strength of the received signal
•RX/TX indicates that the radio modem is receiving or transmitting data via serial port
•Mode indicates whether the modem on Data- or Programming mode
•Power
•RSSI
•RX/TX
•MODE

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6TRANSPARENT DATA TRANSMISSION
6.1 Handshaking lines
When using the serial interface, handshaking signals can be used to control data transfer on the
DATA-port. For example, the radio modem can inform the DTE that the radio channel is busy
and that it is not allowed to initiate transmission.
A common way of using handshaking signals is to monitor the CTS-line and ignore the others.
Usually the terminal device is fast enough to handle the data received by the radio modem, so
the use of RTS-line is not necessary.
Handshaking is not needed if the system protocol is designed to prevent collisions (data
contentions) by using poll queries, or if there is only little traffic and if there is no adverse affect
from occasional data contention situations (two or more radio modems trying to transmit at the
same time).
6.1.1 CTS-line
CTS (Clear To Send) is a signal from the radio modem to the DTE. It indicates when the radio
modem is ready to accept more data from the DTE. The options for CTS-line controls are:
1) Clear To Send
The CTS-line is set to active when the radio modem is ready to accept data for transmission.
CTS will shift into an inactive state during data reception and when a pause (packet end) is
detected in transmitted data. CTS shifts back into an active state either when reception ends or
the radio modem has finished data transmission. CTS will also shift into an inactive state when
the serial interface data transfer speed is greater than the radio interface transfer speed and the
transmit buffer is in danger of overflowing.
2) TX buffer state
The CTS-line will shift into an inactive state only when the data buffer for the data to be
transmitted is in danger of overflowing.
6.1.2 RTS-line
RTS (Ready To Send) is a signal from DTE to the radio modem. DTE controls the data flow from
the radio modem by using RTS. The options for RTS-line controls are:
1) Ignored
The RTS-line status is ignored.

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2) Flow control
The radio modem transmits data to the terminal device only when the RTS-line is active. An
inactive state of the RTS-line will force the radio modem to buffer the received data. This option
is used when the terminal device is too slow to handle data received from the radio modem.
3) Reception control
The RTS-line controls the reception process of the radio modem. An active RTS-line enables
reception. An inactive RTS-line will interrupt the reception process immediately, even if the radio
modem is in the middle of receiving a data packet. This option is used to force the radio modem
into a WAIT State for an immediate channel change.
6.2 Pause length
The radio modem recognises a pause on the serial line (a pause is defined as a time with no
status changes in the TD-line). The pause detection is used as criteria for:
- End of radio transmission - when the transmit buffer is empty and a pause is detected, the
modem stops the transmission and will change the radio to the receiving mode
- SL-command recognition - for an SL-command to be valid, a pause must be detected before
the actual “SL“ prefix of the SL-command.
- User address recognition - in order to detecting the message, a pause must precede it in
transmission.
Traditionally, in asynchronous data communication, pauses have been used to separate serial
messages from each other. However, the use of non-real-time operating systems (frequently
used on PC-type hardware) has changed this tradition by adding random pauses in the
asynchronous data stream. Such systems cannot serve the hardware UART properly when
performing other tasks (other applications or tasks of the operating system itself).
The pauses described above are typically up to 100 ms. When such a pause appears in the
middle of a user message, the radio modem transmits the message as two separate radio
transmissions. This will generate problems in at least two ways:
1) The inter-character delay will be increased by at least the time of the modem transfer delay
2) The probability of collisions on the radio path will increase. This will be especially harmful for
repeater chains
The default value for the pause length is 3 bytes.
6.2.1 Data buffering in the radio data modem
A synchronisation signal is transmitted at the beginning of each radio transmission and this
signal is detected by another radio modem, which then turns into receive mode. During the
transmission of the synchronisation signal the radio modem buffers the data to be transmitted
into its memory. Transmission ends when a pause is detected in the data flow sent by the
terminal device, and after all the buffered data has been transmitted. When the data speed of
the serial port is the same or slower than the speed of the radio interface, the internal transmit
buffer memory can not overflow. However, when the serial interface speed exceeds the speed of
the radio interface, data will eventually fill the transmit buffer memory. After the terminal device

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has stopped data transmission, it will take a moment for the radio modem to transmit the
buffered data and switch the transmitter off. The maximum size of the transmit buffer memory is
one kilobyte (1 kb). If the terminal device does not follow the status of the CTS-line and transmits
too much data to the radio modem, the buffer will be cleared and the transmission restarted.
In the receiving mode, the data coming from the radio is also buffered, thus evening out
differences in data transfer speeds at the serial ports.
6.2.2 TX-delay
The radio modem can be configured to delay the beginning of a radio transmission by
1...65000 ms. During this delay data sent to the radio modem is buffered.
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