Hitachi EDS500 Series User manual

Power Grids
EDS500 series - FSK modems
Part 2: Functions
Manual Release 2

Revision
Revision
Document identity: 1KGT151043 V001 1
Revision: Date: Changes:
0 08/2019 Initial version
1 08/2021 Update for MOPS 1.2.1
Disclaimer2 04/2023
Corrections of 500FSD20 cli commands
2 1KGT151043 V001 1

Contents
Contents
1 Introduction............................................................................................................................. 5
1.1 About the Manual EDS500 series - FSK modems........................................................5
1.2 References..................................................................................................................... 5
2 Functions................................................................................................................................. 7
2.1 Configuration methods...................................................................................................7
2.1.1 Configuration via the serial interface.............................................................7
2.1.2 Configuration via configuration stick..............................................................7
2.2 Handling of the Command Line Interface (CLI)............................................................ 7
2.2.1 Command input............................................................................................. 7
2.2.2 Show Help for Input Format..........................................................................8
2.2.3 Show Commands for Current Hierarchy Level..............................................8
2.2.4 Shortcuts to Input Commands Quicker......................................................... 9
2.2.5 Operation modes - View (login) and configuration (enable)........................ 10
2.2.6 Using the command stack...........................................................................11
2.3 User authentication...................................................................................................... 11
2.3.1 Passwords....................................................................................................11
2.3.2 Automatic session termination.....................................................................12
2.4 Loading and saving a configuration............................................................................ 12
2.4.1 Show configurations.................................................................................... 13
2.4.2 Modifying start-up configuration.................................................................. 13
2.4.3 Power-up, configuration stick and modifications during runtime................. 13
2.4.4 Default configuration and reset of a device.................................................14
2.5 Cold start and warm start............................................................................................15
2.5.1 Information about the last start-up.............................................................. 15
2.5.2 Trigger device warm start with command................................................... 16
2.6 Host name and description..........................................................................................16
2.6.1 Host name................................................................................................... 16
2.6.2 Description, name of contact and location.................................................. 16
2.6.3 Display of the system description............................................................... 17
2.7 Alarms and alarm configuration...................................................................................17
2.8 Processing Functions...................................................................................................18
2.9 Settings........................................................................................................................ 20
2.9.1 Bit rate......................................................................................................... 20
2.9.2 Channel configuration..................................................................................20
2.9.3 Transmission level....................................................................................... 22
2.9.4 Receiving level.............................................................................................23
2.9.5 Filter Characteristic......................................................................................23
2.9.6 Two-wire or four-wire line............................................................................ 23
2.9.7 Transmitter mode - voltage source or current source................................. 24
2.9.8 Line termination........................................................................................... 24
2.9.9 Transmitter predistortion..............................................................................25
2.9.10 Switching off the transmitter and full-duplex/ half-duplex mode.................. 27
2.9.11 Quality check............................................................................................... 28
1KGT151043 V001 1 3

Contents
2.9.12 DCD alarm (carrier monitoring)................................................................... 28
2.9.13 Polarity assignment - V.24 Signals..............................................................29
2.10 Serial interfaces........................................................................................................... 32
2.11 Firmware Update......................................................................................................... 32
3 Glossary.................................................................................................................................33
4 1KGT151043 V001 1

Introduction About the Manual EDS500 series - FSK modems
1 Introduction
1.1 About the Manual EDS500 series - FSK modems
The Manual consists of several parts:
Document identity Part name Explanation
1KGT151042 Part 1: Devices Description of the device portfolio
1KGT151043 Part 2: Functions Description of the functions
1KGT151044 Part 3: Command reference Description of the command line inter-
face
Table 1: Parts of the Manual EDS500 series - FSK modems
1.2 References
[1] Individual Ident EDS500 series
Hardware data sheets
Individual hardware data sheets of all devices
and auxiliary equipment
[2] Individual Ident EDS500 series
Operating instructions
Individual operating instructions of all devices
and auxiliary equipment
[3] 1KGT151041 EDS500 series
Declaration of
Conformity
Declaration of Conformity of the EDS500 FSK
modems
1KGT151043 V001 1 5

References Introduction
6 1KGT151043 V001 1

Functions Configuration methods
2 Functions
2.1 Configuration methods
The devices can be configured as follows:
•connected directly locally
The devices support the following configuration methods:
•Configuration via the serial interface
•Configuration via Configuration Stick
2.1.1 Configuration via the serial interface
EDS500 500FSD20 modems can be configured via the serial interface console0.
With a configuration cable the device can be connected to the serial interface of a PC.
Ready-made cables to connect to a 9-pin Sub-D-plug are available at Hitachi Energy.
For operation of the command console (command line interface, CLI) use a common terminal
program (e.g. Tera Term, PuTTY, HyperTerminal).
The default value for the serial interface is: 57600 Baud 8N1 (8 data bits, no parity, 1 stop bit), no
flow control.
With the help of the terminal program you can enter commands as alpha-numeric commands
that are executed after pressing "Enter". For operating the command line interface (CLI) refer to
Chapter 2.2, "Handling of the Command Line Interface (CLI)"
If a login password has been set for user authentication (Chapter 2.3, "User authentication"), then
this has to be entered when asked to do so before access to the management console is activated.
2.1.2 Configuration via configuration stick
If you plug in a configuration stick at the EXT jack during booting of EDS500 500FSD20 modems,
then that configuration is used (refer to Chapter 2.4, "Loading and saving a configuration").
This enables e.g. a fast exchange of a faulty device when the configuration stick is plugged into the
replacement device. After power-up the configuration of the exchanged hardware is identical to the
faulty device.
2.2 Handling of the Command Line Interface (CLI)
The command line interface (CLI) of the EDS500 500FSD20 modems can be accessed with a
terminal program using the serial connection. All functions and settings of the EDS500 500FSD20
modems can be configured by the command line interface (CLI).
2.2.1 Command input
A command is entered as an alphanumeric command and concluded with "Enter". After complete
and correct input the command is executed.
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Handling of the Command Line Interface (CLI) Functions
Example for show interface
modem> show interface
<show interface>
Interface Summary:
Interface Admin State Link State Speed (Rx/Tx) SQ
fsk0 up up 2400/2400 bps 98 %
console0 up up 57600 bps -
modem>
Errors during input lead to an error message. This shows that the command parser could not find
match for the entered command.
Input error for a command:
modem>show imterface
% Unknown command: 'show imterface'
modem>
2.2.2 Show Help for Input Format
Some commands require the input of parameters that have to follow a certain format. If such a
command is entered and the required parameter is not present or in an invalid format then a help
text is displayed.
Help text after incomplete input of a command
modem#set interface fsk0 auto-off
<set interface fsk0 auto-off *>
Usage: set interface fsk0 auto-off {1-100 s | auto}
modem#
ADVICE
To get a help text about the input of a parameter you have to enter the command without
parameters but with a following blank space and acknowledge it with Enter.
ADVICE
Help texts use curly brackets {} to symbolize a parameter. For alternatives the | character is
used. Optional parameters are enclosed in square brackets [].
2.2.3 Show Commands for Current Hierarchy Level
The command line interface (CLI) of the EDS500 500FSD20 devices offers an online help to show
the further input options of the current hierarchy level.
8 1KGT151043 V001 1

Functions Handling of the Command Line Interface (CLI)
The list of input options is shown after entering the question mark (?) or pressing the tab key.
Command list at the top hierarchy level
switch>?
enable exit show
modem>
Command list at the hierarchy level <show ?>
modem>show ?
alarm interface system version
modem>show
Command list at the hierarchy level <show interface ?>
modem>show interface ?
fsk0
switch>show interface
The example shows, how the command <show interface fsko> can be found.
2.2.4 Shortcuts to Input Commands Quicker
EDS500 500FSD20 devices accept abbreviated input of commands as soon as they are
unambiguous. Not all keywords have to be typed in the full extent.
Concatenated input of commands
modem#sh al
<show alarm>
Active alarms: None
Overall alarm level is 'Notice'
Alarm relay state is off
modem#
If the input command is ambiguous this is reported.
Input of ambiguously concatenated command
modem#sh s
% Ambiguous command
modem#
If there is an ambiguity it is possible to get a list of further options with the question mark (?) or
pressing the tab key .
1KGT151043 V001 1 9

Handling of the Command Line Interface (CLI) Functions
Listing for concatenated command input
modem#sh s?
startup-config stick-config system
modem#sh s
2.2.5 Operation modes - View (login) and configuration (enable)
The management console of the EDS500 500FSD20 modems has a two-level access concept:
•view mode
•operation mode configuration
Most of the system parameters can be shown in view mode whereas safety critical settings are
excluded.
The view mode is accessed with a successful login. Depending on the user authentication scheme
(refer to Chapter 2.3, "User authentication") a login name and/or a login password have to be
entered.
In operation mode configuration all system parameters can be shown and all commands for system
configuration can be executed. The operating mode configuration is accessed at the management
console with the command <enable> after login to the command line interface (CLI).
Depending on the set user authentication scheme (refer to Chapter 2.3, "User authentication") a
login name and/or a login password have to be entered for the operating mode configuration.
The command <disable> terminates operation mode configuration. Afterwards, the device is in view
mode.
< enable >
< disable >
Login-
Password
Enable-
Password
Configuration
Mode
View
Mode
Mode
Figure 1: Access modes
The command <exit> terminates view mode and operating mode configuration and closes the
command line interface (CLI).
The prompt at the command line interface (CLI) shows the current access mode:
Prompt for view mode
modem>
The symbol > indicates the login permission (view mode).
Prompt in operation mode configuration
modem#
10 1KGT151043 V001 1

Functions Handling of the Command Line Interface (CLI)
The symbol # indicates the operation mode configuration.
Entering and exiting operation mode configuration
modem>enable
<enable>
modem#
modem#disable
<disable>
modem>
The operation mode configuration and view mode are automatically terminated after a fix period of
time, refer to Chapter 2.3.2, "Automatic session termination".
2.2.6 Using the command stack
The command line interface (CLI) has a command stack for the last 5 commands.
With the help of the cursor-up and cursor-down keys the list of commands can be scrolled. It shows
always only one command.
The currently shown command can be edited.
Pressing the Enter key executes the command.
The command stack is purged at Logout or Disable (refer to Chapter 2.2.5, "Operation modes -
View (login) and configuration (enable)").
2.3 User authentication
Access to the command line interface (CLI) (refer to Chapter 2.2, "Handling of the Command Line
Interface (CLI)") is protected by a two-step authorization concept (refer to Chapter 2.2.5, "Operation
modes - View (login) and configuration (enable)").
The default value for passwords is "" (empty). It is recommended to set a new password during
first login. This reminder will appear as long as no password is set.
The following sections describe how the device can be protected against unauthorized access.
2.3.1 Passwords
The Login password (loginpass) and the password for the operation mode configuration
(enablepass) are not set.
This means that any access is allowed without password.
ADVICE
Passwords may be up to 20 characters long and contain upper and lower-case characters,
numbers and special characters.
1KGT151043 V001 1 11

User authentication Functions
ADVICE
Danger of an unreachable system due to different character encoding.
When accessing the system the code page used by the accessing program has to be ISO
8859-15 (Latin-9). Due to different character encoding of diacritical characters on login, different
code pages may lead to falsely interpreted and, hence, invalid passwords. The system may
become unreachable.
Commands to set the passwords
<set loginpass {...}>
<set no loginpass>
<clear loginpass>
<set enablepass {...}>
<set no enablepass>
<clear enablepass>
2.3.2 Automatic session termination
To avoid that authenticated connections stay open due to a forgotten logout there is an automatic
function for logout and disable on 500FSD20 modems.
A serial connection to a management console gets only terminated if a login password is set.
The fix value for the automatic termination of the operation mode configuration after inactivity is 600
seconds.
The fix value for the automatic termination of the view mode is 1200 seconds.
2.4 Loading and saving a configuration
All device settings are configured via commands.
A particular device state corresponds to a certain set of commands that is called a configuration.
Configurations can be loaded and saved device internally but can also be stored for backup or
installation of further devices with an identical configuration on external servers and computers and
can be loaded from there to the respective device.
The configuration that runs on a device is called running-config. All configuration command input is
saved as running-config.
ADVICE
Configuration commands that reset parameters to default values in the current operation are not
stored as command as the default values get loaded first at reboot and then the configuration
commands are executed that set the values to special settings.
The persistent configuration memory, the startup-config, allows a device to restore a configuration
after a restart. The stored configuration commands are executed during start-up and create the
initial running-config.
In addition to the device internal startup-config an optional external hot-pluggable storage in the
shape of a configuration stick is available. It can be plugged permanently into the device or be
connected if required and can be used for the following tasks:
12 1KGT151043 V001 1

Functions Loading and saving a configuration
•Quick exchange of a device in case of a failure without new configuration
•Applying a standard configuration
•Backup of a device configuration on portable hardware.
An EDS500 500FSD20 modem detects the configuration stick automatically during operation. If
the configuration stick is plugged into the device at power on then the configuration is loaded from
the stick and copied to the internal configuration memory. A previously saved startup-config gets
overwritten.
2.4.1 Show configurations
Commands to show the configurations
<show config>
<show running-config>
<show startup-config>
<show stick-config >
2.4.2 Modifying start-up configuration
Commands to modify the start-up configuration
<write>
<write memory>
<copy running-config startup-config>
<copy running-config stick-config>
<clear startup-config>
<clear stick-config>
<set config-stick read-only>
<set config-stick no read-only>
ADVICE
If a configuration is copied to the internal startup-config then it is also copied to the configuration
stick if that is plugged in and not write-protected.
ADVICE
An empty configuration is not necessarily identical with the default configuration. The default
configuration represents the state at the time of shipping and eases the access to the device
(Chapter 2.4.4, "Default configuration and reset of a device").
2.4.3 Power-up, configuration stick and modifications during runtime
At start-up there is no running-config yet. The device internal start up configuration is loaded
and the included commands are executed. The result is the initial running-config that is identical
to the startup-config. If during operation further configuration commands are executed then the
running-config is modified. If the configuration stick is plugged in during operation then the stored
configuration can be accessed. There is no automatic transfer of the configuration.
The data of the configuration stick is not used before a restart of the device and then the data is
copied to the startup-configuration.
1KGT151043 V001 1 13

Loading and saving a configuration Functions
"Tab. 2: Modification of configuration with and without plugged-in configuration stick" shows which
configuration is modified by which action.
Action Current device
configuration
(running-config)
Internal startup
configuration
(startup-config)
Configuration
stick (stick-con-
fig)
1. Delivery State - A1 -
2. Power on (no configuration stick) A1 A1 -
3. Command input <set ...> A2 A1 -
4. Command input <copy running-con-
fig startup-config>
A2 A2 -
5. Command input <set ...> A3 A2 -
6. Plug in configuration stick A3 A2 B1
7. Command input <copy running-con-
fig stick-config>
A3 A2 A3
8. Command input <set ...> A4 A2 A3
9. Device restart (with configuration
stick)
A3 A3 A3
Table 2: Modification of configuration with and without plugged-in configuration stick
2.4.4 Default configuration and reset of a device
The default configuration of a device contains configuration commands that allow access to the
broadest set of functions of a system. On shipping all devices have the default configuration. The
default configuration is not identical with an empty configuration.
Device Settings Value Implicit default value Explicit command
Host name modem Yes No
Baud rate Con0 57600 bps, 8N1 Yes No
Baud rate DTE 2400 bps, transparent Yes No
Center frequency 2000 Hz Yes No
Deviation 400 Hz Yes No
Transmit level -6 dBm Yes No
Receiver amplification 6 dB Yes No
2/4-Wire 2-Wire Yes No
Table 3: Parameters of the default configuration
To reset a device to the default values automatically, the following options are available:
– Via command <reload -default-config>
– At the serial interface console0 during startup and pressing the key i(gnore) once.
Instead of the start up configuration the default configuration is loaded. The device internal startup
configuration remains unchanged. For security reasons the start up configuration cannot be
accessed after booting with the default configuration.
If the device should use the default values permanently then the default configuration has to be
saved with the command <write>.
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Functions Loading and saving a configuration
2.4.4.1 Method 1: Reset with command
Command to restart a device with the default configuration.
<reload -default-config>
2.4.4.2 Method 2: Reset during startup of device
During start-up the key i may be pressed once on console console0 to signal to ignore the start up
configuration. Subsequently, this has to be acknowledged by pressing the Enter key.
Start-up with loading the default configuration:
Performing self-test:
Testing LEDs... [done]
Testing I-Bus... [ok]
Keystroke <i> has been detected.
Press Enter to confirm to ignore config, otherwise press any
other key: Enter
Ignoring config, loading default...
2.5 Cold start and warm start
The device performs a cold start after the power supply is switched on.
A warm start is performed when the device is initialized without switching off the power supply. A
warm start can be triggered by pressing the reset button, refer to EDS500 FSK Modems Manual -
Part 1: Reset Button, as well as by command or due to a device failure.
The command for a restart can be executed via the command line interface (CLI) at the
management console, the web interface or SNMP.
The restart interrupts all connections on all interfaces. First all LEDs light up (LED test, refer to
EDS500 FSK Modems Manual - Part 1: Display Elements).
2.5.1 Information about the last start-up
The general output on system information includes the device uptime since the last system start
(system uptime) and the reason for the restart (last reload reason). Possible triggers are:
Last reload reason Description
cold start Power up
warm start (hardware reset) Press reset button
warm start (software reset) Restart after command
warm start (watchdog) Device fault
Table 4: Last reload reason
Commands to show the system information
<show system>
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Cold start and warm start Functions
2.5.2 Trigger device warm start with command
Commands for restart of device
<reload>
<reload -default-config>
2.6 Host name and description
Besides a host name further metadata can be set to describe EDS500 500FSD20 modems to grant
unique identification and easy location in the network. Especially in larger networks this feature
becomes important.
2.6.1 Host name
The host name is the unique identification for a device in the network. The host name of an EDS500
Modem may be up to 20 characters long and consists of any combination of characters, numbers
and special characters.
The default value for host name is: modem.
A host name should consist only of 'A'-'Z', '0'-'9', '-' and '.' and the case is not significant.
Do not use any special characters or the underscore to comply with RFC 1123 (Requirements for
Internet Hosts).
Command to set the host name
<set system hostname {name}>
ADVICE
The host name is used as prompt at the command line interface (CLI).
Display of the host name as prompt at the command line interface (CLI)
modem#set system hostname test
<set system hostname *>
Hostname set.
test#
2.6.2 Description, name of contact and location
Setting this meta data is optional. Use the descriptions to e.g. save identification data for your
organisation.
The maximum length is 50 characters.
The default value for a description is empty.
Commands to set system descriptions
<set system description {text}>
<set system contact {text}>
<set system location {text}>
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Functions Host name and description
2.6.3 Display of the system description
Commands to display the system descriptions
<show system>
Example for show system
modem# show system
<show system>
System Description: Modem RP570/571
Location: Mannheim
Contact: Max Mustermann
System uptime is 0 days 01:42:13
Last reload reason is system coldstart
modem#
2.7 Alarms and alarm configuration
EDS500 500FSD20 modems have an alarm concept to communicate certain error conditions
with an alarm relay, LEDs for display or software signalisation. The individual alarms (referring to
interfaces or the system) are summarised in the system-wide alarm state. The alarms have three
levels of severity.
Alarm level Description Alarm- Relay
state
System
alarm LED
(Alarm)
Subsystem Alarm
LED (SQ Alarm)
No alarm: offNo alarm /
information
There are no or only informative
conditions
Normal Off
Information: on
Warning Pre-alarm: there is a noncritical
error
Normal Flashing On
Alarm Alarm: there is a critical error Alarm On On
Table 5: Alarm level and signalling
The alarm relay is described in EDS500 FSK Modems Manual - Part 1: Alarm-Relay (X4).
The LED display is described in EDS500 FSK Modems Manual - Part 1: Display Elements.
The alarm table can be displayed via the command line interface (CLI).
Alarm Stage Enabled
(as
default
value)
Config-
urable
Reason Command
No carrier
detected
Alarm No Yes Alarm, if no carrier
detected
<set interface fsk0
alarm dcd>
No carrier
detected for
more than
drop-out time
Alarm Yes Yes Alarm, if no carrier is
detected for more than
a baudrate dependent
time
<set interface fsk0
alarm dcd-delayed>
Table 6: Alarms modem
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Processing Functions Functions
Alarm Stage Enabled
(as
default
value)
Config-
urable
Reason Command
No I2C avail-
able
Alarm Yes No Alarm, if I2C bus not
available - No configu-
ration saving, no data
communication
Codec failure Alarm Yes No Alarm, if Codec not
accessible - No data
communication
Receiver clip-
ping
Warning Yes No Warning, if receiver
amplification is too high,
so receiver is clipping
Signal quality
alarm
Alarm Yes Yes •signal quality (SQ)
below the SQ
threshold more than
10 times within 4
seconds
•no carrier is
detected for more
than a baudrate
dependent time
<set interface fsk0
alarm sq>
System boot-
ing
Alarm Yes No The system restarts.
Table 6: Alarms modem
Certain alarms are set in such a way that they can occur during system start (or as a reaction to
configuration commands).
A list of possible alarms can be displayed with the command <show alarm enabled>. As soon as an
alarm condition applies to one of these alarms it is activated and adopted by the system-wide state.
The list of active alarms can be displayed with the command <show alarm active>.
Commands for alarm configuration
<show alarm active>
<show alarm enabled>
<set interface fsk0 [no] alarm {dcd | dcd-delayed | sq}>
2.8 Processing Functions
The 500FSD20 modem has the following characteristics (see also Tab. 18):
VFT channels in the CCITT grid for different bit rates (bps - bits per second) rates:
•24 channels 50 bps R.35
•12 channels 100 bps R.37
•6 channels 200 bps R.38A
•8 channels 200 bps R.38B
•2 channels 600 bps
•1 channel 1200 bps V.23
•1 channel 2400 bps
18 1KGT151043 V001 1

Functions Processing Functions
•Additionally, further channels can be realized by utilization of center frequencies deviating from
the CCITT recommendation.
Operating modes:
•two-wire or four-wire link
•point-to-point connection or
•multi-drop line with staggering
•duplex or half-duplex mode on two-wire or four-wire links
The transmission level can be set as a function of:
•the bit rate according to CCITT
•the occupied channels
•Moreover, additional increase of 6 dB posible
Setting receiver amplification in five steps (0, 6, 10, 14 or 26 dB)
•Raising the detection level by 15 dB for noisy lines is possible
Output and input impedance are configured inside the device according to the selected installation
situation (end of line or on the way).
Filter characteristic can be switched between:
•high selectivity (90 dB)
•normal selectivity
The analog transmitter part can be operated as a voltage or current source.
•Star connection of up to three transmission lines possible in current mode
•high-resistance staggering of current sources
Transmitter predistortion can be switched on in 7 stages as low pass or high pass from 0 to 10 dB
to improve the quality of poor transmission lines.
•Option to set the optimum predistortion through integrated test function with result displayed via
LED (LEDs = EQZ, RxD)
Carrier switch-off:
•through RTS in half-duplex mode
•after a period of time (2 to 16 seconds) which is dependent on the bit rate
•after a user selected time (1 - 100 s)
Optional monitoring of the received signal for isochronous distortion with display (LED=SQL; SQL
alarm).
Carrier monitoring (DCD alarm) as a function of the bit rate and user specific (0 - 600 s).
Alarm relay can optionally be set to:
•DCD alarm directly
•DCD alarm delayed as a function of the bit rate
•SQL alarm
Free assignment of the polarity of the V.24 signals, and also of the zero position of the receiver
(RxD) (+ ΔF or - ΔF).
Output of the received eye signal to the transmitter output in test mode.
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Settings Functions
2.9 Settings
2.9.1 Bit rate
The bit rate for transmitter and receiver can be set independently of each other in the range from 50
to 600 bps without having to observe the filter selectivity setting. For 1200 bps this is only possible
with setting high selectivity. For 1200 bps at filter setting normal selectivity and 2400 bps, the
transmitter and the receiver must have the same bit rate.
Commands to set the bit rate
<set interface fsk0 {rx | tx} baudrate {50 | 100 | 200 | 600
| 1200 | 2400}>
2.9.2 Channel configuration
The channels according to CCITT recommendation can be selected according to Tab. 7 to
Tab. 13. In the case of a multi-drop line, the overall configuration must be taken into account. The
channel configuration plan must take account of the selectivity defined (see Chapter 2.9.5, "Filter
Characteristic"). The restrictions with normal selectivity must be noted.
Commands to set the channel configuration
<set interface fsk0 {rx | tx} baudrate {…}>
<set interface fsk0 {rx | tx} deviation {…}>
<set interface fsk0 {rx | tx} frequency {…}>
Setting Commands
Bit rate: 50 bps
Minimum channel distance: 120 Hz
<set interface fsk0 tx baudrate 50>
<set interface fsk0 rx baudrate 50>
Frequency deviation: +/- 30 Hz <set interface fsk0 tx deviation 30>
<set interface fsk0 rx deviation 30>
Center frequency (min: 420 Hz; max: 3180 Hz;
24 channels)
<set interface fsk0 {rx | tx} frequency {420 | 540 |
660 | 780 | 900 | 1020 | 1140 | 1260 | 1380 | 1500
| 1620 | 1740 | 1860 | 1980 | 2100 | 2220 | 2340 |
2460 | 2580 | 2700 | 2820 | 2940 | 3060 | 3180}>
Table 7: Channel configuration for CCITT R.35
Setting Commands
Bit rate: 100 bps
Minimum channel distance: 240 Hz
<set interface fsk0 tx baudrate 100>
<set interface fsk0 rx baudrate 100>
Frequency deviation: +/- 60 Hz <set interface fsk0 tx deviation 60>
<set interface fsk0 rx deviation 60>
Center frequency (min: 480 Hz; max: 3120 Hz;
12 channels)
<set interface fsk0 {rx | tx} frequency {480 | 720
| 960 | 1200 | 1440 | 1680 | 1920 | 2160 | 2400 |
2640 | 2880 | 3120}>
Table 8: Channel configuration for CCITT R.37
Setting Commands
Bit rate: 200 bps
Minimum channel distance: 480 Hz
<set interface fsk0 tx baudrate 200>
<set interface fsk0 rx baudrate 200>
Table 9: Channel configuration for CCITT R.38A
20 1KGT151043 V001 1