alarmdecoder Package

decoder Module

Provides the main AlarmDecoder class.

class alarmdecoder.decoder.AlarmDecoder(device)

Bases: object

High-level wrapper around AlarmDecoder (AD2) devices.

on_arm

This event is called when the panel is armed.

Callback definition: def callback(device)

on_disarm

This event is called when the panel is disarmed.

Callback definition: def callback(device)

on_power_changed

This event is called when panel power switches between AC and DC.

Callback definition: def callback(device, status)

on_alarm

This event is called when the alarm is triggered.

Callback definition: def callback(device, status)

on_fire

This event is called when a fire is detected.

Callback definition: def callback(device, status)

on_bypass

This event is called when a zone is bypassed.

Callback definition: def callback(device, status)

on_boot

This event is called when the device finishes booting.

Callback definition: def callback(device)

on_config_received

This event is called when the device receives its configuration.

Callback definition: def callback(device)

on_zone_fault

This event is called when Zonetracker detects a zone fault.

Callback definition: def callback(device, zone)

on_zone_restore

This event is called when Zonetracker detects that a fault is restored.

Callback definition: def callback(device, zone)

on_low_battery

This event is called when the device detects a low battery.

Callback definition: def callback(device, status)

on_panic

This event is called when the device detects a panic.

Callback definition: def callback(device, status)

on_relay_changed

This event is called when a relay is opened or closed on an expander board.

Callback definition: def callback(device, message)

on_message

This event is called when standard panel Message is received.

Callback definition: def callback(device, message)

on_expander_message

This event is called when an ExpanderMessage is received.

Callback definition: def callback(device, message)

on_lrr_message

This event is called when an LRRMessage is received.

Callback definition: def callback(device, message)

on_rfx_message

This event is called when an RFMessage is received.

Callback definition: def callback(device, message)

on_open

This event is called when the device has been opened.

Callback definition: def callback(device)

on_close

This event is called when the device has been closed.

Callback definition: def callback(device)

on_read

This event is called when a line has been read from the device.

Callback definition: def callback(device, data)

on_write

This event is called when data has been written to the device.

Callback definition: def callback(device, data)

KEY_F1 = u'\x01\x01\x01'

Represents panel function key #1

KEY_F2 = u'\x02\x02\x02'

Represents panel function key #2

KEY_F3 = u'\x03\x03\x03'

Represents panel function key #3

KEY_F4 = u'\x04\x04\x04'

Represents panel function key #4

BATTERY_TIMEOUT = 30

Default timeout (in seconds) before the battery status reverts.

FIRE_TIMEOUT = 30

Default tTimeout (in seconds) before the fire status reverts.

address = 18

The keypad address in use by the device.

configbits = 65280

The configuration bits set on the device.

address_mask = 0

The address mask configured on the device.

emulate_zone = [False, False, False, False, False]

List containing the devices zone emulation status.

emulate_relay = [False, False, False, False]

List containing the devices relay emulation status.

emulate_lrr = False

The status of the devices LRR emulation.

deduplicate = False

The status of message deduplication as configured on the device.

id

The ID of the AlarmDecoder device.

Returns:identification string for the device

battery_timeout

Retrieves the timeout for restoring the battery status, in seconds.

Returns:battery status timeout

fire_timeout

Retrieves the timeout for restoring the fire status, in seconds.

Returns:fire status timeout

open(baudrate=None, no_reader_thread=False)

Opens the device.

Parameters:

• baudrate (int) – baudrate used for the device. Defaults to the lower-level device default.
• no_reader_thread (bool) – Specifies whether or not the automatic reader thread should be started.

close()

Closes the device.

send(data)

Sends data to the AlarmDecoder device.

Parameters:data (string) – data to send

get_config()

Retrieves the configuration from the device. Called automatically by _on_open().

save_config()

Sets configuration entries on the device.

reboot()

Reboots the device.

fault_zone(zone, simulate_wire_problem=False)

Faults a zone if we are emulating a zone expander.

Parameters:

• zone (int) – zone to fault
• simulate_wire_problem (bool) – Whether or not to simulate a wire fault

clear_zone(zone)

Clears a zone if we are emulating a zone expander.

Parameters:zone (int) – zone to clear

devices Module

This module contains different types of devices belonging to the AlarmDecoder (AD2) family.

• USBDevice: Interfaces with the AD2USB device.
• SerialDevice: Interfaces with the AD2USB, AD2SERIAL or AD2PI.
• SocketDevice: Interfaces with devices exposed through ser2sock or another IP to Serial solution. Also supports SSL if using ser2sock.

class alarmdecoder.devices.Device

Bases: object

Base class for all AlarmDecoder (AD2) device types.

on_open

This event is called when the device has been opened.

Callback definition: def callback(device)

on_close

This event is called when the device has been closed.

Callback definition: def callback(device)*

on_read

This event is called when a line has been read from the device.

Callback definition: def callback(device, data)*

on_write

This event is called when data has been written to the device.

Callback definition: def callback(device, data)*

id

Retrieve the device ID.

Returns:identification string for the device

is_reader_alive()

Indicates whether or not the reader thread is alive.

Returns:whether or not the reader thread is alive

stop_reader()

Stops the reader thread.

close()

Closes the device.

class ReadThread(device)

Bases: threading.Thread

Reader thread which processes messages from the device.

READ_TIMEOUT = 10

Timeout for the reader thread.

stop()

Stops the running thread.

run()

The actual read process.

class alarmdecoder.devices.USBDevice(interface=0)

Bases: alarmdecoder.devices.Device

AD2USB device utilizing PyFTDI’s interface.

FTDI_VENDOR_ID = 1027

Vendor ID used to recognize AD2USB devices.

FTDI_PRODUCT_ID = 24577

Product ID used to recognize AD2USB devices.

BAUDRATE = 115200

Default baudrate for AD2USB devices.

classmethod find_all(vid=1027, pid=24577)

Returns all FTDI devices matching our vendor and product IDs.

Returns:list of devices Raises:CommError

classmethod devices()

Returns a cached list of AD2USB devices located on the system.

Returns:cached list of devices found

classmethod find(device=None)

Factory method that returns the requested USBDevice device, or the first device.

Parameters:device (tuple) – Tuple describing the USB device to open, as returned by find_all(). Returns:USBDevice object utilizing the specified device Raises:NoDeviceError

classmethod start_detection(on_attached=None, on_detached=None)

Starts the device detection thread.

Parameters:

• on_attached (function) – function to be called when a device is attached Callback definition: def callback(thread, device)
• on_detached (function) – function to be called when a device is detached Callback definition: def callback(thread, device)

classmethod stop_detection()

Stops the device detection thread.

serial_number

Retrieves the serial number of the device.

Returns:serial number of the device

description

Retrieves the description of the device.

Returns:description of the device

interface

Retrieves the interface used to connect to the device.

Returns:the interface used to connect to the device

open(baudrate=115200, no_reader_thread=False)

Opens the device.

Parameters:

• baudrate (int) – baudrate to use
• no_reader_thread (bool) – whether or not to automatically start the reader thread.

Raises:

NoDeviceError

close()

Closes the device.

write(data)

Writes data to the device.

Parameters:data (string) – data to write Raises:CommError

read()

Reads a single character from the device.

Returns:character read from the device Raises:CommError

read_line(timeout=0.0, purge_buffer=False)

Reads a line from the device.

Parameters:

• timeout (float) – read timeout
• purge_buffer (bool) – Indicates whether to purge the buffer prior to reading.

Returns:

line that was read

Raises:

CommError, TimeoutError

class DetectThread(on_attached=None, on_detached=None)

Bases: threading.Thread

Thread that handles detection of added/removed devices.

on_attached

This event is called when an AD2USB device has been detected.

Callback definition: def callback(thread, device*

on_detached

This event is called when an AD2USB device has been removed.

Callback definition: def callback(thread, device*

stop()

Stops the thread.

run()

The actual detection process.

class alarmdecoder.devices.SerialDevice(interface=None)

Bases: alarmdecoder.devices.Device

AD2USB, AD2SERIAL or AD2PI device utilizing the PySerial interface.

BAUDRATE = 19200

Default baudrate for Serial devices.

static find_all(pattern=None)

Returns all serial ports present.

Parameters:pattern (string) – pattern to search for when retrieving serial ports Returns:list of devices Raises:CommError

interface

Retrieves the interface used to connect to the device.

Returns:interface used to connect to the device

open(baudrate=19200, no_reader_thread=False)

Opens the device.

Parameters:

• baudrate (int) – baudrate to use with the device
• no_reader_thread (bool) – whether or not to automatically start the reader thread.

Raises:

NoDeviceError

close()

Closes the device.

write(data)

Writes data to the device.

Parameters:data (string) – data to write Raises:py:class:~alarmdecoder.util.CommError

read()

Reads a single character from the device.

Returns:character read from the device Raises:CommError

read_line(timeout=0.0, purge_buffer=False)

Reads a line from the device.

Parameters:

• timeout (float) – read timeout
• purge_buffer (bool) – Indicates whether to purge the buffer prior to reading.

Returns:

line that was read

Raises:

CommError, TimeoutError

class alarmdecoder.devices.SocketDevice(interface=('localhost', 10000))

Bases: alarmdecoder.devices.Device

Device that supports communication with an AlarmDecoder (AD2) that is exposed via ser2sock or another Serial to IP interface.

interface

Retrieves the interface used to connect to the device.

Returns:interface used to connect to the device

ssl

Retrieves whether or not the device is using SSL.

Returns:whether or not the device is using SSL

ssl_certificate

Retrieves the SSL client certificate path used for authentication.

Returns:path to the certificate path or OpenSSL.crypto.X509

ssl_key

Retrieves the SSL client certificate key used for authentication.

Returns:jpath to the SSL key or OpenSSL.crypto.PKey

ssl_ca

Retrieves the SSL Certificate Authority certificate used for authentication.

Returns:path to the CA certificate or OpenSSL.crypto.X509

open(baudrate=None, no_reader_thread=False)

Opens the device.

Parameters:

• baudrate (int) – baudrate to use
• no_reader_thread (bool) – whether or not to automatically open the reader thread.

Raises:

NoDeviceError, CommError

close()

Closes the device.

write(data)

Writes data to the device.

Parameters:data (string) – data to write Returns:number of bytes sent Raises:CommError

read()

Reads a single character from the device.

Returns:character read from the device Raises:CommError

read_line(timeout=0.0, purge_buffer=False)

Reads a line from the device.

Parameters:

• timeout (float) – read timeout
• purge_buffer (bool) – Indicates whether to purge the buffer prior to reading.

Returns:

line that was read

Raises:

CommError, TimeoutError

messages Module

Message representations received from the panel through the AlarmDecoder (AD2) devices.

• Message: The standard and most common message received from a panel.
• ExpanderMessage: Messages received from Relay or Zone expander modules.
• RFMessage: Message received from an RF receiver module.
• LRRMessage: Message received from a long-range radio module.

class alarmdecoder.messages.BaseMessage

Bases: object

Base class for messages.

raw = None

The raw message text

class alarmdecoder.messages.Message(data=None)

Bases: alarmdecoder.messages.BaseMessage

Represents a message from the alarm panel.

ready = False

Indicates whether or not the panel is in a ready state.

armed_away = False

Indicates whether or not the panel is armed away.

armed_home = False

Indicates whether or not the panel is armed home.

backlight_on = False

Indicates whether or not the keypad backlight is on.

programming_mode = False

Indicates whether or not we’re in programming mode.

beeps = -1

Number of beeps associated with a message.

zone_bypassed = False

Indicates whether or not a zone is bypassed.

ac_power = False

Indicates whether or not the panel is on AC power.

chime_on = False

Indicates whether or not the chime is enabled.

alarm_event_occurred = False

Indicates whether or not an alarm event has occurred.

alarm_sounding = False

Indicates whether or not an alarm is sounding.

battery_low = False

Indicates whether or not there is a low battery.

entry_delay_off = False

Indicates whether or not the entry delay is enabled.

fire_alarm = False

Indicates whether or not a fire alarm is sounding.

check_zone = False

Indicates whether or not there are zones that require attention.

perimeter_only = False

Indicates whether or not the perimeter is armed.

numeric_code = None

The numeric code associated with the message.

text = None

The human-readable text to be displayed on the panel LCD.

cursor_location = -1

Current cursor location on the keypad.

mask = None

Address mask this message is intended for.

bitfield = None

The bitfield associated with this message.

panel_data = None

The panel data field associated with this message.

class alarmdecoder.messages.ExpanderMessage(data=None)

Bases: alarmdecoder.messages.BaseMessage

Represents a message from a zone or relay expansion module.

ZONE = 0

Flag indicating that the expander message relates to a Zone Expander.

RELAY = 1

Flag indicating that the expander message relates to a Relay Expander.

type = None

Expander message type: ExpanderMessage.ZONE or ExpanderMessage.RELAY

address = -1

Address of expander

channel = -1

Channel on the expander

value = -1

Value associated with the message

class alarmdecoder.messages.RFMessage(data=None)

Bases: alarmdecoder.messages.BaseMessage

Represents a message from an RF receiver.

serial_number = None

Serial number of the RF device.

value = -1

Value associated with this message.

battery = False

Low battery indication

supervision = False

Supervision required indication

loop = [False, False, False, False]

Loop indicators

class alarmdecoder.messages.LRRMessage(data=None)

Bases: alarmdecoder.messages.BaseMessage

Represent a message from a Long Range Radio.

event_data = None

Data associated with the LRR message. Usually user ID or zone.

partition = -1

The partition that this message applies to.

event_type = None

The type of the event that occurred.

zonetracking Module

Provides zone tracking functionality for the AlarmDecoder (AD2) device family.

class alarmdecoder.zonetracking.Zone(zone=0, name='', status=0)

Bases: object

Representation of a panel zone.

CLEAR = 0

Status indicating that the zone is cleared.

FAULT = 1

Status indicating that the zone is faulted.

CHECK = 2

Status indicating that there is a wiring issue with the zone.

STATUS = {0: 'CLEAR', 1: 'FAULT', 2: 'CHECK'}

zone = 0

Zone ID

name = ''

Zone name

status = 0

Zone status

timestamp = None

Timestamp of last update

class alarmdecoder.zonetracking.Zonetracker

Bases: object

Handles tracking of zones and their statuses.

on_fault

This event is called when the device detects a zone fault.

Callback definition: def callback(device, zone)

on_restore

This event is called when the device detects that a fault is restored.

Callback definition: def callback(device, zone)

EXPIRE = 30

Zone expiration timeout.

zones

Returns the current list of zones being tracked.

Returns:dictionary of Zone being tracked

faulted

Retrieves the current list of faulted zones.

Returns:list of faulted zones

update(message)

Update zone statuses based on the current message.

Parameters:message (Message or ExpanderMessage) – message to use to update the zone tracking

expander_to_zone(address, channel)

Convert an address and channel into a zone number.

Parameters:

• address (int) – expander address
• channel (int) – channel

Returns:

zone number associated with an address and channel

util Module

Provides utility classes for the AlarmDecoder (AD2) devices.

exception alarmdecoder.util.NoDeviceError

Bases: exceptions.Exception

No devices found.

exception alarmdecoder.util.CommError

Bases: exceptions.Exception

There was an error communicating with the device.

exception alarmdecoder.util.TimeoutError

Bases: exceptions.Exception

There was a timeout while trying to communicate with the device.

exception alarmdecoder.util.InvalidMessageError

Bases: exceptions.Exception

The format of the panel message was invalid.

class alarmdecoder.util.Firmware

Bases: object

Represents firmware for the AlarmDecoder devices.

STAGE_START = 0

STAGE_WAITING = 1

STAGE_BOOT = 2

STAGE_LOAD = 3

STAGE_UPLOADING = 4

STAGE_DONE = 5

static upload(dev, filename, progress_callback=None)

Uploads firmware to an AlarmDecoder device.

Parameters:

• filename (string) – firmware filename
• progress_callback (function) – callback function used to report progress

Raises:

NoDeviceError, TimeoutError

panels Module

Representations of Panels and their templates.