Biamp VOCIA LSI-16 Manual

LSI-16 setup and wiring guide
This wiring guide explains the instances in which the Vocia Life Safety Interface (LSI-16), the enhanced Life Safety
Interface (LSI-16e) and the Control Interface (CI- 1) should be used, and describes the connections that are required for
correct operation.
The functionality of the LSI-16/LSI-16e has been tailored to the specific requirements in the E 54-16 European life
safety standard. However, the LSI-16, LSI-16e and CI-1 are still applicable in installations that require highly reliable and
fault-tolerant systems with voice evacuation functionality, even if there is no need to meet E 54-16 standards. Some
terms are specific to E 54-16, for example, General Fault, General Alarm, Protection Fault etc and may not be
applicable for your jurisdiction. This document attempts to explain the operation of the Vocia emergency system so it
can be used for life safety purposes in other jurisdictions.
Alarm inputs and faults
A “fault” is a problem that may impede the Vocia system from performing its role as a Voice Alarm Control and Indicating
Equipment (VACIE), and an “alarm” is a condition that has been triggered via an external stimulus, generally from the
fire detection system or Control and Indicating Equipment (CIE).
Alarm Inputs
A Vocia alarm is any input from the fire panel to the four emergency inputs on the LSI-16/LSI-16e (control input pins 5 -
8). The Vocia Alarm state is triggered by a low to high transition on the emergency inputs, with the high state between
14V and 24V. These four inputs are used to connect to the fire alarm control and indicating equipment (CIE) to notify the
LSI-16 that an alarm has occurred in a particular zone. When an alarm is detected, the Vocia system will cease normal
operation and will enter Emergency Mode. An emergency input on the four control inputs can be configured to mute the
zone or play one emergency message (see figure below). Any unused emergency inputs must be terminated, disabled
in software or attached to a CI-1.
Additional general purpose inputs for use as alarm inputs are available on the LSI-16e or by adding the IM-16 to the
LSI-16. These sixteen general purpose inputs can be programmed to play an emergency message, mute or reset an
emergency zone. You can have up to 10 inputs into a single emergency zone (see figure below). The general purpose
inputs can be programmed as TTL, high range or monitored high range. Monitoring is available for short to ground and
open circuit.
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Logic Level Contact closure Active State Low will be used for a ormally Open circuit, Logic Level Contact closure
Active State High should be used for a ormally Closed circuit. Input and output states can be monitored in real time on
the Audio & Live Control tab for LSI-16 and IM-16.
Faults
Faults indicate a problem in the Vocia system. Depending on the severity of the fault parts of the Vocia system may still
be operational. There are three types of faults reported by the LSI-16:
1. General Fault: This does not indicate a fault with just any device, it must be a device that is configured and
considered part of the emergency system (VA-8600c, EWS-4/10, LSI-16, LS I-16e, and ELD-1). A General Fault
indication is generally accompanied by a Path, Protection or etwork fault, but not always.
◦The LSI-16 will show a General fault if only one Cobra et network connection is present, both must be active.
2. Path, Protection and Power Supply Fault: These three faults are grouped together and will initiate a General
Fault condition whenever triggered; in some conditions they will trigger a system fault. A General Fault condition
will self-clear once the problem has been resolved.
◦Path: The path integrity is tested from microphone capsule to the end of the loudspeaker lines (provided an
ELD-1 is fitted to the end of the loudspeaker lines). A Path fault will be triggered if a fault in the transmission
path is detected.
◦Protection: A protection fault is activated if a system amplifier channel fails however this failure will not
prevent an emergency announcement being made on other available channels.
◦Power Supply: A Power Supply fault will be triggered if the LSI-16 is operating on a PoE supply but the main
24V supply fails or an external power supply fault is signaled to the LSI-16.
3. System Fault: This is the most serious condition in a Vocia system and should be acted upon immediately.
Again, this only applies to emergency devices that have been configured in the World that the LSI-16/LSI-16e
resides in. In this state the System Fault LED and the General Fault LED will be illuminated to draw attention to the
compromised status of the system. All other LEDs on the front of the device will remain off. When a System Fault
occurs it will always trigger a General Fault as well. A System Fault will not self clear once the problem is resolved
and requires a manual reset from the CI-1 or via a switch which has been connected to the Voice Alarm Reset (pin
4). A System Fault condition is reported when the state of an emergency device cannot be reported to the LSI-16.
This has been implemented to maintain system integrity through all Emergency devices.
The following states will trigger a System Fault:
• Any emergency device dropping offline.
• The LSI will not configure.
• Multiple LSI’s in a world.
• The LSI restarts unexpectedly.
• Software fault detected in an emergency device.
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• Memory fault in an emergency device.
• Complete or critical LSI failure.
• Immediately after a configuration is sent*
*Upon applying power or immediately after a configuration is sent, the LSI-16 will always power up in the
System Fault condition state. Manual intervention is required to take the LSI-16 out of this condition which can be
done via a CI-1 or via a custom circuit below (see following section on wiring an LSI-16 to external switches). This
power up condition does not prevent emergency zone voice announcements.
Additional fault inputs can be connected using the LSI-16e general purpose in puts (see figure below).
Wiring
LSI-16 with a CI-1
With the introduction of the CI-1 the wiring of an LSI-16 can be done directly from the CI-1. This means that any
connections made from the fire detection system or mimic panel are made to the CI-1. Connections are then made from
the CI-1 to the LSI-16. In an E 54-16 installation it is mandatory to have a CI-1. However, in other jurisdictions a CI-1
may not be required, but is always highly recommended as it greatly simplifies wiring.
Biamp offers a 24VDC 30W inline power supply which is appropriate for use with the CI-1. The power supply supports
100-240VAC to 24VDC and has a 5-pin Phoenix style connector included. The power supply part number is
283.0119.90A. An IEC plug to local wall power cable is also needed for the power supply - in orth America the part
number is 330.0002.900 (this cable part number will differ for other countries).
The CI-1 also negates the need to wire switches to control some important functions, namely the Local Sounder Silence,
System Test and System Fault Reset. In addition it provides a Sounder, which is particularly useful in alerting staff to a
fault in the Vocia system or when an Alarm was triggered from the fire detection system.
The wiring of the CI-1 is very similar to the LSI-16, except in a few minor ways. To begin with, all of the connections that
are found on the LSI-16 (apart from the option module slots) are also found on the CI-1. When interfacing to a fire
detection system you still need to wire all of the connections to the CI-1 however for any unused inputs and outputs the
CI -1 will provide all of the proper terminations as well. If a Monitored Output is used the installer must disconnect the
relevant output from the CI-1 and provide their own 22kΩ resistor at the far end of the line being monitored. See the
below figure for LSI-16 and CI-1 interconnects.
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System Fault Relay Connection
The System Fault Relay is used for informing external devices or sounding an alarm that indicates a System Fault has
been triggered. System fault conditions are detailed earlier in this document. The system fault relay connection has both
a ‘normally open’ and ‘normally closed’ setting and both may be used at the same time.
LSI-16 without a CI-1
Control Inputs
The figure below shows the recommended wiring when connecting LSI-16 control inputs to an external voltage source,
when a CI-1 is not present in the system.
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The table below details each control input on the LSI-16/LSI-16e for external connections, when a CI-1 is not present in
the system.
Pins 1 & 2: For fault inputs a resistor is not required. These inputs are activated on a high to low transition and by
default are in a high state. A fault will be reported once a high to low transition is detected.
Pins 3 & 4: It is necessary to connect the Alarm Silence and Alarm Reset to either the CIE or to a ‘normally open’
switch. There is no alternate method for resetting, or silencing any active Alarms other than this. These operate on a low
to high transition and need to be wired to ground through a 3.9k Ω resistor (to pull these inpu ts into a low state) first.
Pins 5 to 8 : If any of the four Emergency (Alarm) Inputs are not used they must be disabled in the software or an
Alarm will be reported. When used they should be wired through a 3.9kΩ resistor to ground. If a normally closed switch
is used, the resistor is still recommended to avoid false alarms. If a resistor is used, this alarm condition will be
suppressed without actually affecting an alarm condition generated from the CIE. Monitoring of the connection should
be handled by the CIE to ensure a valid alarm is reported in an emergency situation. The figure below shows valid ways
of connecting circuits to assert the Alarm Inputs.
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As Alarm Inputs are activated on a low to high transition, a resistor should be used to pull these inputs down first (to a
low state) then they become asserted once a low to high transition is detected. If the input is not disabled in the
software, a 3.9kΩ resistor wired to ground should be used to suppress alarms.
In its default state the LSI-16 Alarm Input always provides a 3mA current source (high state). This current source is
overcome by using the resistor which pulls the current source to ground (low state). Then the 24V is required to
overcome this current being pulled to ground and produces the necessary low to high transition. If no resistor is used (in
conjunction with a C switch) the output will be in a low state already. Once the switch goes open circuit, the low to high
transition will trigger the Alarm. Be aware that an open circuit or short in the line will also assert this alarm.
For dry contact relays and switches, either provided by the CIE or by the user, we recommend using the 24V supplied
circuit shown in the figure below. Battery backing for the LSI-16 is in most cases highly recommended and has been
catered for. This 24V supply can also be used to feed a power source to the Alarm Inputs. It is not uncommon for the
CIE to also provide a 24V output which can be used as well.
Monitored Inputs/Outputs (I/O)
Monitored Inputs/Outputs achieve their monitoring characteristic by becoming a part of a circuit. This circuit needs to
contain a load (LED, Lamp, Sounder etc) and a connection to a power source. If any of the inputs/outputs on terminals 1
through 8 is unused, the input/output must be connected to an external 2.2kΩ resistor and the 10V pin or user supplied
power source (to present a pseudo load to the output terminal). If not using a resistor to terminate the connection the
maximum resistance of the circuit should be no greater than 22kΩ .
The General Fault, PSU Fault, Protection Fault, Path Fault and External Supply Over-voltage Monitor outputs (Pins 4 to
8) are continuously monitored for:
• Open-Circuit
• Short-Circuit to ground
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• Over-Voltage
In addition to the fault monitoring detection circuitry, output pins 3 - 8 are designed to produce output contact closures.
Monitored Inputs/Outputs ‘Sounder Output/Silence Input’ and System Fault Reset Input (Pins 1 & 2) are configured
additionally as Inputs. This was done as a specific response to E 54-16 requirements and so requires the circuit shown
below for correct operation.
If a visual indication for the state of the output is required the figure below shows various circuits of how this can be
achieved.
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Internally the fault pin senses the small amount of current supplied from the 10V pin or external power supply. The small
amount of current flow through the resistor is enough to keep the fault pin from generating an Alarm. Using the
‘Monitored LED circuit’ as an example, the LED indication will be ‘on’ but the current source wi ll be so low that light will
not be visible. Once the LSI-16 output gets asserted, an internal connection to ground is established (shown in below)
thus providing a path for the current flow to illuminate the LED.
LSI-16e General Purpose Inputs (IM-16)
The IM-16 is designed to supplement the LSI-16. The same option I/O can also be found on the LSI-16e. The
connections on the IM -16 (or general purpose inputs on the LSI-16e) can be configured in software as alarm, fault or
reset inputs. The user can also use software to configure the connections as TTL, high range or monitored high range.
The active state used to assert these inputs can be configured as high or low range, except for the high range monitored
instance which is only able to be configured in a high active state.
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Suggested Alarm and Fault Input Connection Diagrams
Vocia Software Fault Monitoring
In addition to the front panel LEDs, the Vocia software is continuously updating the current operational state of the
emergency equipment (viewable in the Alarms & Log tab of the LSI-16 device dialog window). The following fields are
monitored for all Emergency devices in the World in which the LSI-16 resides:
Fault Name Fault Description
Audio Input Path
Reported by all devices that pass audio, this alarm indicates that the device is not receiving
audio correctly, will also set off emergency alarms in any device that is part of an emergency
system.
Audio Output Path
Reported by all devices that pass audio, this alarm indicates that the device is not
transmitting audio correctly. This alarm will also set off emergency alarms in any device that
is part of an emergency system.
Available This alarm indicates that the emergency controller for the World is non-functional. The user
should check the configured LSI-16 for faults. This alarm will not be reported if an LSI-16 is
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not configured for the World.
Configuration
Reported by all devices, this alarm indicates that the configuration that is currently stored on
the device is incomplete or has errors. The user should create a valid project file and
execute a Send Configuration to resolve this alarm.
Device Alive This alarm is triggered if the device is not fully operational (i.e., if it is not configured, time
synchronized, or online).
Device Offline Device Offline
Device Restart Device restart count. Does not provide indication for possible causes.
Device Unknown Device Unknown
Emergency This alarm is triggered if any of the emergency alarms have been triggered.
Emergency Master
Restart Unexpected restart or power loss of LSI-16
Emergency Memory This alarm indicates that one of the memory devices essential to correct operation has failed.
Emergency State
This alarm is triggered if the system enters emergency mode. The system can only enter
emergency mode through external stimulus of an LSI-16, such as a trigger from a fire alarm
system.
Emergency System
Fault
This alarm indicates a system fault in the emergency system. This is a critical error, and the
system
will be non-operational under this alarm condition.
Flash
Reported by all devices, this alarm means that an error has been reported in the flash
memory, and
the flash may be corrupted.
General Fault This alarm indicates a general fault in the emergency system. Check the device's 'Alarms &
Logs' tab for active faults.
Heap Internal memory corruption of an emergency device.
LSI-16 System Fault A system fault condition has occurred (refer to Faults above for detailed fault conditions).
etwork
This alarm indicates that the device has experienced network communication errors or
dropouts.
The LSI-16 always needs both network ports to be connected to the Cobra et network to
ensure redundant paths are present. They can be connected to the same switch, but best
practice in life safety systems is to provide a redundant Cobra et network path.
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