The purpose of this chapter is to provide an overview of the Cv2 capabilities. Chapter topics are
organized in the same order that you would follow in setting up the system. Read this chapter
carefully before proceeding with the installation and programming of the Cv2. For more details
on configuring the operation through the programming software, refer to Chapter 3,
Configuration.
1.1 Cv2 Capabilities
When an alarm occurs, the Cv2 places a call using its built-in cellular phone and announces
the alarm condition using stored voice messages. Alarm messages consist of the site ID
phrase, the group phrase and the alarm message phrase that are stored at voice programming
time. The group phrase is used if the alarms have been grouped to provide different activities
for different alarm conditions. The unit can also be called up and interrogated to obtain
current alarm conditions and readings.
The Cv2 has eight hardware inputs that can be programmed to accept either digital or analog
signals and eight hardware outputs. Inputs can be independently configured to operate in
these modes:
digitalmonitoring contact closures or voltage levels
watchdogmonitoring for the absence of a periodic event
totalizercounting events
intervalmeasuring the time duration of events
analogmeasuring 0 to 5 volt signals
Outputs can be set to operate as either on/off controls or as timed controls.
1.2 What constitutes an alarm?
Alarm conditions can be defined for digital, watchdog and analog inputs. Totalizers and
interval inputs are used for measurement purposes and do not generate alarms. The signal at
the input is conditioned by a debounce timer that ensures the level is valid before accepting it.
A digital input has normal and alarm states that can be defined as either when the input is high
or low. After the input signal has been qualified by the debounce timer, it can be registered as
an alarm when the input is active, or it can be latched to detect a pulsed condition. The voice
message for a digital input is programmed to announce the alarm condition that it is
monitoring, e.g. “Intrusion Alarm”.
Watchdog inputs use a timer that is restarted by changes at the input. If this timer expires
because it has not been restarted within the programmed interval, an alarm will register. Like
the digital input, the watchdog can be set as either an active-only or latched alarm. The voice
message for a watchdog is similar to a digital, e.g. “Tower Strobe Failure”.
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Operations Overview1-2
8
8
Analog inputs convert the voltage level to a digital value and perform a comparison against
the programmed low and high setpoints. An alarm is present when the measured value is
above or below the setpoint. Alarm messages are spoken using the stored phrase with either
“High” or Low” appended depending on which setpoint has been exceeded. The actual
reading, including decimal place notation and engineering units, is spoken when the Cv2 is
interrogated.
The latching alarm function is also available for analog inputs.
1.3 How are alarms processed?
The way in which the Cv2 processes alarms is shown in Figure 1.
INPUTS
HARDW A RE
INPUTS
UP TO 30 INPUTS OR OUTPUTS
GROUP
1
DIRECTORY
A
OUTPUTS
HARDW A RE
OUTPUTS
POINTS
GROUP
6
DIRECTORY
F
DIALOUT
COMMANDS
TELEPHONE
PORT
Figure 1 Cv2 Block Diagram
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BARNETT ENGINEERING LTD.ProTalk Cv2
CONTROL
COMMANDS
Operations Overview1-3
The hardware input and output ports are activated in the Points section to become part of the
monitoring and control process. There are 30 points which can be referenced to any of the I/O
ports. This allows an analog input to be used by more than one point and monitored for
multiple setpoints, as would be the case where minor and major alarms are required.
If you do not want all of the points to generate the same response when they detect alarms,
they can be placed into different groups. Six groups are available, each with independent
timers and control codes. When a group detects an alarm condition in one of its assigned
points, it executes the sequence of actions found in the current directory. A group can use any
of the six directories to perform the callout function, plus the directory selection can be
changed by using the shift control feature.
1.4 What actions should occur when an alarm is detected?
All alarm conditions will be processed by placing a call on the cellular phone. The called
number and the activities that occur with different alarms are determined by entries in the
directories. A directory contains the sequence of actions that will occur when a group has an
active alarm. Instructions for dialing, speaking, inserting delays and signaling are placed in
the directory in the order in which they are to be performed. There are a total of six
directories; each can contain a unique sequence of activities that will be performed when
alarm conditions exist.
To best describe how a directory controls alarm reporting activities, an example directory
programming session follows. For more information on the directory summary and dialog
box, refer to Chapter 3. The opening window for a directory displays a summary of the
activities that it will perform when an alarm is detected. The directory summary is arranged
as lines; each line represents the sequence of events that will take place during one callout. If
a Dial command is the first entry on the line, the Cv2 will call the programmed number and
then execute the remainder of the commands on that line. After the last command on the line
is competed, the call will be terminated. Commands such as Auto Ack and Wait, when used
as single line commands, do not initiate a call. For a basic sequence where the Cv2 is to call a
phone number and speak the alarm message, the directory line contains the Dial and Voice
commands appearing as:
1.[DIAL]2458829 [VOICE]
This line will cause the Cv2 to place a call to 245-8829 and then speak the Site ID, Group
Name and alarm message, or messages, for all active points. Unless programmed not to, the
Cv2 will append the phrase “Enter Acknowledge Code” at the end of the alarm announcement
and wait for the code to be returned. If the code is received, the alarm sequence will be
terminated until a new alarm occurs. Failure to receive an Acknowledge Code will advance
the sequence of operations to the next line in the directory. If the commands contained in the
last directory line have been completed without reception of an Acknowledge Code, the Cv2
waits for the time interval set in the timers before repeating the process by starting over at
directory line 1.
During execution of the Voice command, the Cv2 will try to announce the alarm messages
three times with a one minute limit for the total announcement duration.
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Operations Overview1-4
For example, to call four telephone numbers, the directory would appear as:
1.[DIAL]2458829 [VOICE]
2.[DIAL]2336700 [VOICE]
3.[DIAL]9842121 [VOICE]
4.[DIAL]9843316 [VOICE]
If you want an alert tone to precede the voice message the directory line would look like this:
1.[DIAL]2458829 [ALERT] [VOICE]
The next example shows a sequence that is used to call a numeric paging terminal. After the
call is placed there is a four second delay for the paging terminal to respond before the Cv2
sends the number to be displayed on the pager. When calling a paging terminal, it is
sometimes useful to allow the called party time to call the Cv2 back and acknowledge the
alarm before the Cv2 advances to the next line in the directory. This can be done by using the
Wait command on its own line; the entry below will cause a four minute delay before the next
line is executed.
1.[DIAL]2458829 [WAIT]4 [DTMF]4567
2.[WAIT]240
Directory lines can be added, removed, or modified and new lines can be inserted between
existing lines.
1.5 How do you want to respond to an alarm call?
After the Cv2 has finished speaking the alarm messages, it prompts the called party with the
phrase “Enter Acknowledge Code” and then waits five seconds for the code to be returned. If
the code is received, it will terminate any further callout activities until a new alarm occurs;
otherwise, it will proceed to the next line in the directory. There is a Temporary
Acknowledge Time that can be set in the General section that will override the operation of
the Acknowledge Code. If the temporary time is set to a value other than Off, and the
received Acknowledge Code has the digit # appended to it, the Cv2 will remain in the
acknowledged state only for this time interval. After the timer has expired and if the alarm
condition still exists, the Cv2 will resume alarm reporting. This feature is used as a safety
measure to ensure that an alarm cannot be acknowledged and then left unattended.
Each group has its own Acknowledge Code which only affects points that have been assigned
to the group. Other groups with different Acknowledge Codes will continue alarm reporting
if they do not receive their own code.
Using the Auto Ack command in a directory will cause the Cv2 to automatically acknowledge
any alarms that are in the group using the directory. This feature must also be enabled for that
group, since other groups of points may be using the same directory. Auto Ack must be on
the last line in a directory since any further commands will never be executed.
Another method of acknowledging the Cv2 is by activating the special function that allows
hardware inputs to be used as local acknowledge controls.
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Operations Overview1-5
1.6 What if an alarm is not acknowledged?
When the last line in the directory has been completed without receipt of an Acknowledge
Code, a two-stage timer is used to determine when the directory sequence is repeated again.
This timer has two sections: a Short Timer which operates for the number set in Short Cycles,
and a Long Timer which begins after the Short Timer has completed its cycles. This provides
a means of varying the repetition cycle over a period of time.
1.7 What do you want the Cv2 to do when you call it?
In addition to reporting alarms, the Cv2 will also answer incoming calls. This allows you to
interrogate the unit, operate control outputs and change shifts. You can control the level of
security that is presented to incoming calls. With the lowest level, the call will be answered
with the Site ID phrase, the phrases for any groups that have alarms, followed by the prompt
“Enter Command Code”. An Access Code is not required. At the next level of security, the
Cv2 will announce the Site ID phrase and then wait ten seconds for the password code before
allowing access to alarm information or other control functions. At the highest level, the call
is answered but there are no voice prompts; the caller has ten seconds to enter the Access
Code.
Each group of alarms has its own Interrogate Code. When the code is entered, the alarm
status for points in that group is spoken. For digital and watchdog points, the stored phrase
for that point is spoken. Analog points are spoken with the stored phrase and its status -- high,
low or normal -- followed by the reading. For totalizers, the stored phrase is spoken first
followed by the current accumulated value. Interval timers respond with the stored phrase and
the last captured interval.
Control outputs respond with the stored phrase followed by either ‘On’ or ‘Off’ indicating
their current state.
1.8 Sending remote control commands
Points designated as outputs can be controlled using the programmed codes. These codes can
be sent to the Cv2 either during a reporting sequence or when a call is placed to the unit.
During the alarm reporting sequence, the control codes may be sent after the “Enter
Acknowledge Code” prompt is heard. For the next five seconds, the Cv2 will accept
Acknowledge, Interrogate or Control codes. With each received code, the command will be
performed and a prompt for another command entry will then be spoken. For a remote control
output, the status of the output will be spoken after the received code has been executed.
When the unit is called and after the Access Code, if required, has been entered, the prompt to
“Enter Command Code” will be issued.
In either case, the call will be terminated if a valid code is not received during the ten second
window.
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Operations Overview1-6
1.9 Indicators
The Cv2 has four LED indicators to show the operation of the unit and assist in troubleshooting.
When the Cv2 is initially powered up, the four LEDs will do the following:
& All will turn on for approximately one second.
& Hook will flash on and off for one second then go out.
& Tone will flash on and off for one second then go out.
& Voice will flash on and off for one second then go out.
& Alarm will flash on and off for one second then go out.
& Hook On power-up, following the initial flashing of each LED, Hook flashes until the
Cv2 has found cellular service. Once the unit has logged onto the cellular
network, the Hook indicator goes out. Hook also flashes while a call is being
placed. After the call has been processed, Hook is on steady until the end of the
call when it goes out.
& ToneTone blinks once for each DTMF digit that is either received or transmitted.
& Voice Voice is on when the Cv2 is speaking. On power-up, following the initial flashing
of each LED, it will go on continuously for 2 seconds if any section of the stored
database, voice or vocabulary memory is corrupt. If this occurs, the configuration
should be downloaded into the unit and the voice recordings checked for validity.
Voice flashes briefly every second to indicate that the Cv2 is operating correctly.
& Alarm If an unacknowledged alarm is present, the alarm indicator will flash. When the
alarm is acknowledged, Alarm is on steady. When no alarms are present, Alarm
is off.
1.10 Troubleshooting
Is there power to the unit?
When power is first applied to the Cv2, it will flash the Hook indicator until it establishes contact
with the cellular service. At any other time, the presence of power, and correct operation, are
indicated by the brief flashing of the Voice LED every second.
Does the cell phone work?
Use the local call feature to determine if the unit is working properly. If the call cannot be
completed, query the cell phone to see if it responds - any parameter can be used here. Query the
RSSI (Received Signal Strength Indicator) in the phone to see if there is coverage in the area.
The message “error” will be returned if there is no coverage. This can possibly be corrected by
improving the antenna system.
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Operations Overview1-7
Are the inputs connected properly?
For digital inputs that are programmed for standard digital operation, create an alarm condition
on the input and confirm that the Alarm LED comes on. Make sure the input is applied long
enough for the debounce to time out. If the Alarm indicator does not come on, the problem is not
necessarily with the input connection. Check that the input is enabled as a valid point, the
associated group is enabled, and the directory is programmed to call out..
For analog inputs, interrogate their group to hear the scaled value at the input.
The unit does not dial out.
Check the Alarm LED to confirm that an alarm is present. If this indicator is not flashing, the
Cv2 will not call out. Check that the input is enabled as a valid point, the associated group is
enabled, and the directory is programmed to call out.
I cannot call into the unit.
If you receive a recording from the telephone company indicating the user is not available, there
may be a problem with the installation or you may be calling the wrong number. Use the
programming phone to confirm the telephone number in the unit.
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BARNETT ENGINEERING LTD.ProTalk Cv2
Installation2-1
2Installation
The Cv2 can be installed before or after the configuration has been transferred from the PC to the
unit. If the Cv2 is configured in the shop before it is installed in the field, all of the programmed
parameters and voices will remain unchanged in the unit’s non-volatile flash memory.
2.1 Antenna requirements
The antenna used for your installation will depend on the proximity of the alarm unit to the
cellular carrier facility. If the installation is very close to a cell site, a portable style antenna
can be connected directly to the RF connector on the Cv2. If the distance between the
installation and the nearest cell site does not provide adequate signal strength to operate with
the small antenna, then an outdoor or other high gain antenna will be required. Antenna
system details for this type of antenna installation -- antenna type, height and coaxial cable
type -- will depend on the particulars of the site.
If you use the directly connected antenna, it should be oriented vertically.
2.2 Mounting
The Cv2 is available in two versions: the packaged unit which is housed in an enclosure
complete with a battery backed power supply and a programming phone set, or the standalone version which is the Cv2 alarm reporter without the above accessories.
2.2.1 Packaged model
The packaged model should be mounted
onto a wall or other vertical surface in a
location where the temperature cannot
exceed the Cv2 rating.
Before connecting AC power, confirm that
the setting of the voltage range switch on the
power supply module is set for the correct
input, either 110 or 220 VAC.
Connect AC power to the terminal strip on
the power supply module. Connect the
antenna or coaxial feed line to the remote
antenna onto the TNC coaxial jack on the
Cv2.
Connect the input and output signal lines
between the Cv2 and the equipment that you
want to monitor and control. Details of the
Figure 3 Packaged Cv2
input and output ports are discussed later in
this chapter.
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Installation2-2
2.2.2 Stand-alone model
The stand-alone Cv2 can be mounted on a flat surface. Make sure that there is enough room
around the unit to make connections. The environment should be clean and dry, with an
ambient temperature that
o
does not go below -20
or above +50
o
C.
C
Connect a DC power
source to the terminals on
TB2. The Cv2 requires up
to 1.5 Amps to operate;
the supply should be sized
accordingly. Input power
to the unit is protected by
a Polyswitch current
limiter. If a fault develops
in the CV2, this switch
Figure 3 Stand-alone Cv2
will become a high
resistance to prevent damage to the equipment or the power supply. Once this switch has
been activated, the fault must be removed before it will reset and allow current to pass through
to the equipment.
Connect the antenna or coaxial feed line to the remote antenna onto the TNC coaxial jack on
the Cv2.
Connect the input and output signal lines between the Cv2 and the equipment that you want to
monitor and control. Details of the input and output ports are discussed in the next section.
2.3 Input port connections
The input ports can be connected to a variety of contact or voltage sources for monitoring
purposes. Select a wiring configuration that matches your alarm source from one of the
following arrangements:
2.3.1 Ground closure alarm signal
For alarm sources that appear as a ground
closure, either through a mechanical contact
or an open collector driver, the input should
be wired according to Figure 4. If the input
is normally open and goes to ground during
an alarm condition, program the Hardware
section for this input as “Normally High”. If
the reverse is true, set the input to “Normally
Low”.
Figure 4 Ground Closure Input Wiring
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Installation2-3
2.3.2 +12 volt alarm signal
The input will accept an alarm signal
that switches between 0 and +12 volts
with the wiring arrangement shown in
Figure 5.
If the signal switches between +12 volts
and an open circuit, as in the case of a
relay contact, the ‘B’ terminal must be
connected to ground to ensure that the
logic level goes to ground when the
voltage is removed.
Figure 5 +12 Volt Input Wiring
2.3.3 +5 volt alarm signal
Figure 6 shows how an alarm signal that
switches between +5 volts and ground is
wired. If the alarm signal does not have a
true ground level, terminal ‘B’ must be
connected to ground.
Figure 6 +5 VDC Input Wiring
2.3.4 Analog input
For analog signals, either of the wiring configurations shown in Figures 7 and 8 can be used.
The connection shown in Figure 7 will provide additional filtering of the signal.
Figure 7 Analog (filtered) Input Wiring
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Figure 8Analog (unfiltered) Input Wiring
Installation2-4
2.4 Output port connections
The output ports are open collector drivers that can
sink up to 500 mA through a load connected to a
voltage of up to +50 VDC. If an inductive load
such as a relay is connected to an output, install a
Figure 9 Output Wiring
protective reverse-biased diode across the load to
prevent damage to the output from the inductive flyback voltage. Figure 9 shows the
connection for an output used as a relay driver.
2.5 Configuration programming connection
When the configuration database is transferred from
the PC to the Cv2, a serial communications cable is
connected between the COM port of the computer and
the serial programming port, J1, on the Cv2. When
the cable is attached to the connector on the Cv2, the
DTR signal is sensed by the Cv2 and it enters the
programming mode. The cable used to connect
between the two pieces of equipment is shown in
Figure 10. To restore the Cv2 to operation, the cable
must be unplugged. The serial programming cable is
supplied with the Cv2.
J1 can also be used to program the cellular radio in
the Cv2. When the Cv2 detects that the serial port is
being used to program the cellular radio, it will
automatically route the communications to the radio.
Figure 11 shows a stand-alone Cv2 installation. The
programming PC is present only when a configuration
database is be transferred to or from the Cv2; the
programming telephone can be either permanently
installed or used only for voice recording. Note that
Figure 10 Serial Cable
the phone set can also be used to place outgoing calls,
if required. If the Cv2 is to remain operational during a power outage, the DC power provided
to the unit must be uninterrupted.
Figure 12 shows a packaged Cv2 installation. The programming PC is present only when a
configuration database is be transferred to or from the Cv2; the programming phone is part of
the package and can also be used to place outgoing calls. The built-in power supply contains
an 8 AH battery and is capable of running the Cv2 for at least 12 hours during a power outage.
The power supply has a power fail output signal that can be connected to any of the input ports
on the Cv2 and programmed as an alarm point.
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Installation2-5
Figure 11 Stand-alone Cv2
B1272M001
Figure 12 Packaged Cv2
BARNETT ENGINEERING LTD.ProTalk Cv2
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