POTTER VSA2 Vault Sound Alarm System User Guide

VSA-2 System
VAULT SOUND ALARM SYSTEM
INSTALLATIONS MANUAL and
USER’S GUIDE

General Information

Thank you for purchasing POTTER VSA VAULT SOUND ALARM SYSTEM. Please read this manual thoroughly before making connections and operating the unit. The instructions in this manual will enable you to obtain optimum performance from the system. Please retain this manual for future reference.
The Vault Sound Alarm (VSA) is a sound detection system conforming to the requirements of Underwriters’ Laboratories, Inc. for the primary protection of reverberant and non-reverberant vaults such as bank and mercantile vaults. The VSA system must be used with an appropriate UL listed control unit where UL certification is required.
The VSA contains a microprocessor driven DC differential balance control which is adjusted so that the impedance of the microphone circuits are balanced with the internal impedance of the differentia’ circuit. The VSA will alarm through its SPDT alarm relay contacts if the microphone circuit impedance changes over a certain threshold.
The standard VSA-2K package consists of one VSA-1 Control Unit / Microphone, one VSM microphone, and one Remote Test Annuciator (RTA) for the installations in vaults up to 24′ x 12′ size. Up to 9 additional VSM microphones can be installed per one VSA-1 Control Unit / Microphone for the installations in larger vaults. For vaults smaller than 12′ x 12′ the VSA Control Unit / Microphone may be used as a stand-alone unit. The installations can be either surface mount or flush mount using optional VFM flush mounting kit. The VSA requires the Remote Test Switch (RTA) for the applications requiring an alarm indicator and test switch outside the vault.

Features

• Sound Detection System satisfying requirements of Underwriters’ Laboratories, Inc. for the primary protection of reverberant and non-reverberant Vaults
• Coverage expandable by adding up to nine (9) additional microphone units (VSM): total ten (10) microphones including one VSA-1 Control Unit
• Automatic self sensitivity test feature to provide early detection of system failure
• Built-in Test Sounding Device (VSA-1)
• Manually adjustable sensitivity to detect all attacks set forth in UL 639 and UL 681 for sound detectors.
• Built-in Accumulating Pulse Counter permitting 0-9 accumulated signals before alarm is signaled to prevent false alarm.
• Enclosure:High Impact PC/ABS alloy based enclosures with tamper
• Input Power: 9.0 VDC to 16.0 VDC, 12 VDC Nominal
• Outputs: 1 Form C for alarm relay, 2.0 Amps @ 30 VDC 1 Form B for tamper relay, 2.0 Amps @ 30 VDC
• Connections: Wiring connections through two 1/2″ conduit openings
• Components: VSA-2K: One VSA-1, One VSM, and One RTA packaged as a system VSA-1K: Control Unit / Amplifier and Microphone w/ RTA VSA-1: Control Unit /Amplifier and Microphone VSM: Additional Microphone for VSA-2 System
• Accessories: RTA: Potter remote annunciator VFM: VSA flush mounting adapter
• Retrofit: may be used in conjunction with existing Potter PSM mirophone

Complete Kit Parts List
VSA-2K Package includes: One VSA-1 Control Unit / Microphone, One VSM additional Microphone, One Remote Test Annuciator, Four mounting screws, Manual
VSA-1 K Single Package includes: One VSA-1 Control Unit / Microphone, One Remote Test Annuciator, Two Mounting Screws, Manual
System Controls and Names
Refer to System Installation and Setup for detailed use.

To Burglar Alarm Panel

1. Power Input +12 VOC

2. Power Input Return

3. NC — Tamper Relay

4. COM

5. NO

6. COM – Alarm Relay

7. NC
   To RTAand VSM Microphone

8. Test Input

9. Alarm Output(Annunciator)

10. Tamper Output(Annunciator)

11. RTN

12. Test Speaker Output(Reserved)

13. Microphone Shield

14. Mlcrophone(VSM)

15. Microphone(VSM)

Jumper ON: Self-testing Enable Jumper OFF: Self-testing Disable.
*This feature is not evaluated by UL.
Relay Contacts| Alarm relay: Form C
COM: common signal connection
NC: normally closed to COM with normal conditions and control operation NO: normally open to COM with normal conditions and control operation
Tamper relay: Form B
COM: common signal connection
NC: normally closed to COM with normal conditions and control operation.
Accumulator Setting| Switch for enabling and setting the number of accumulated alarm events before VSA-2 signals and alarm condition. (0-9)
Sensitivity Adjustment| Adjustment potentiometer for setting the sensitivity of the VSA-2 system. (Clockwise more sensitive)
Addressable Module Mounting Deck| A deck to place an ID Addresable module if intended. The black support strips can be used to had the addressable module or cables in place “Addressable module not to be used with this U.L. Listed Product
[Table 1] VSA-2 Operation States: Status LEDMode| Color/State| Meaning| Alarm Contact| Tamper Contact
---|---|---|---|---
Steady| Green| Normal| COM-NC| Closed
Blinking| Green/Red| System Auto-Balancing, Alarm and Tamper Conditions| COM- NO| Open
Blinking| Green| System Balanced, Tamper Condition| COM-NC| Open
Steady| Red| Alarm Condition| COM-NO| Closed
Steady| Amber| Tamper Condition| COM-NC| Open
Blinking| Red| Self Sensitivity Testing Failure| COM-NC| Open
Blinking| Red/Amber| Alarm and Tamper Conditions Simultaneously| COM-NO| Open
Steady| Off| No power to VSA-2| COM-NO| Open

[Table 2] RTA LED Status Table

Mode| Color/State| Meaning| Alarm Contact| Tamper Contact| RTA: Alarm Red LED| RTA: Tamper Yellow LED
---|---|---|---|---|---|---
Steady| Red| Alarm Condition| COM-NO| Closed| On| Off
Steady| Amber| Tamper Condition| COM-NC| Open| Off| On
Steady| Red/Amber| Alarm and Tamper Conditions| COM-NC| Open| On| On
Steady| Off| No power to VSA-2| COM-NO| Open| Off| Off
Steady| Off| System Normal| COM-NC| Closed| Off| Off

Important Notes before the Installations

• Always use approved UL components together
• Sensitivity of the VSA must be set: – after the unit is completed mounted on the intended locations – with enclosure covers closed – under the conditions as close as the normal operating environments of the vaults Proper sensitivity cannot be acquired if the enclosure covers are opened.
• It is not recommended to use the VSA in a fur vault: Absorption of sounds by furs may decrease sensitivity of VSA depending on the volume of furs in the vault.
• Recommended coverage of one VSA Microphones (VSA-1, VSM) It is recommended to install at least one VSA-1 or VSM in every 12′ X 12′ area. Refer to the typical microphone layout below. Exact layout may need to be adjusted based on the physical conditions of the individual vault.
• Each detector must be tested at least once per year.
• The maximum wire run between the VSA-1 and the farthest VSM is 250 feet.
• All the wiring between the VSA-1 and VSM must be in 1/2″ conduit.

System Installations and Setup

*The RTA does not connect to the alarm control panel. The RTA is connected directly to the VSA-1.The RTA uses the control panel as a junction box in this example.

Installation Example

1. Installations of VSA-1 Control Unit and VSM Microphone
2. Open the enclosure cover and conduit hole cap (Fig. 1).
3. Mount the base on the intended location. Connect the conduit pipes and draw the wires through the conduit pipes (Fig. 2).
4. Install the additional VSM Microphones as 1)-2) above if necessary.
5. Make the wiring connections according to the wiring diagram (Fig. 5). All the wiring between the VSA-1 and VSM must be in 112″ conduit. Make sure to remove the jumper wire (Terminal 14 and 15) in case of using VSM microphones. Arrange the wires per (Fig. 3). using 18AWG-22AWG shielded wire. (Belden 8761 or similar alternate is recommended.)
6. Perform the setups as described in “2. System Setup” herein below, and close the cover (Fig. 4).

Installation of the VSA-1 Control Unit and PSM Microphones
*The VSA-1 is U.L> listed with the PSM series microphones (PSM, PSM-F) for retrofitting an original VSA system.

1. Open the enclosure cover and conduit hole cap (Fig. 1)
2. Mount the base on the intended location. Connect the conduit pipes and draw the wires through the conduit pipes. (Fig. 2)
3. Install the additional PSM Microphones as 1) -2) above, if necessary.
4. Make the wiring connections according to the wiring diagram (Fig. 6). All the wiring between the VSA-1 and the PSM’s must be in 1/2″ conduit. Use only 18AWG-22AWG shielded wire.(Belden 8761 or similar alternate is recommended.)
5. Perform the setup as described in “2. System Setup” and close the cover.(Fig. 4)

Fig. 5 Wiring Diagram
WARNING – Incorrect connections may result in damage to the unit
Fig. 6 Wiring Diagram(When installation with legacy PSM microphones)
WARNING – Incorrect connections may result in damage to the unit

 System Setup

Balancing
After installation and when the system is in a non-alarm condition, press the balance button once to initiate the self-balancing process and to adjust the system’s impedance in accordance with the installation environment. When pressing SW1, the balancing process is initiated with a single beep and status LED will alternately blink RED/GREEN. The balancing process is completed by the microprocessor within 4 seconds acknowledged by a double beep tone and a GREEN on status LED. LED will blink green if the VSA-1 is in a tamper condition. A magnet can be placed near the top of the tamper to place the system in normal condition.
Sensitivity Adjustment
Adjust the sensitivity level using Sensitivity Adjustment VR1. The RED LED will not indicate when the sensitivity pod is set at 1/3 or below. Strike the vault surface with a plastic mallet and adjust the sensitivity control to provide desired protection. (rotate clockwise for more sensitivity). When testing, make sure the enclosure cover is closed and the microphone grill is not blocked for precise adjustment.
Caution: Extreme care should be exercised so that the protected surfaces are not marred or damaged while performing the attack tests.
Testing
Pressing the test button on front of the VSA-1 applies a test signal to the built-in sounding device causing the VSA to go into an alarm condition, which is indicated by a RED LED adjacent to the test button. (The RED LED will not indicate when sensitivity pod is set at 1/3 or below). If system will not test properly, increase sensitivity control setting until reliable manual tests are obtained. Verify that reliable tests are obtained at RTA remote test unit too. When performing the annual system test, use the internal test button on the VSA-1 The tamper may be tested by removing the cover and observing the LED status.(see table 1)
Accumulator Setup
The integrated pulse accumulator accumulates up to nine (9) alarm conditions and will only alarm after the specified number of alarms takes place within a ten (10) minute span. Setting the accumulator to zero disables accumulation feature. IF ASINGLE PULSE EXCEEDS THE ALARM THRESHOLD THE UNIT WILL ALARM.
Self Sensitivity Testing Setup(This feature not evaluated by U. L)
VSA-2 is designed to validate the system’s performance by automatically testing the system’s performance, daily, using its built-in test sounding device. This feature enables the user to be informed of possible system degradation due to severe environmental changes in the vault.

• Disconnect the power once, and connect the power again while simultaneously pressing the test switch SW2 or the RTA test button. Hold the test button until the generated tone silences. The system will save the current response characteristics into the system’s memory by collecting electrical information against a self-generated testing sound for several seconds.
• Setup is done. The system will execute the auto-test every 24 hours. If the test fails the system will re-execute the test up to four times again with the interval of 30 minutes to validate actual system degradation. Upon failure of five consecutive tests (including the first failure) the system will a. Trigger the tamper failure signal to the control panel, and b. the status LED will blink red.
• Note: You can Enable /Disable the feature using JP3 (On=Enable / Off=Disable).

Installations of VSA with VFM flush mounting kit
For flush mounting the VSA-1 or the VSM, an optional VFM flush mounting kit is required.

1. For flush mounting of VSA users need to provide gang holes of 6.6″ x 6.6″ with 2.9″ depth.
2. Using the screws provided, mount VSA bottom cover and VFM bracket together (Fig. 6)
3. After completing the “2. System Setup”, mount the VFM cover to VFM bracket using the screws provided with VFM (Fig. 7).
4. For best results, use the Caddy Snap On Fixture / Box Hanger(512A)

Specifications

1 Form B for Tamper relay, 2.0 Amps @ 30 VDC
Annunciators| On-board Status LED (not visible through enclosure)
Remote Annunciator:Testing| LEDs for displaying system status and test switch for remote testing.
Testing| Remote connections to a test switch initiates system test for users. On-board test button to facilitate installation.
Accumulator| Integrated into VSA-1 control unit permitting 0-9 accumulated signals.
Balancing| Automatic balancing by pressing a Balancing button
Sensitivity| Manually adjustable to detect all attacks set forth in UL 639 and UL 681 for sound detectors.
Input Power| 9.0 VDC to 16.0 VDC, 12 VDC Nominal
Operating current| 50mA nominal / 250mA maximum (at test sound generation)
Enclosure| Halogen-free High Impact PC/ABS alloy based enclosures with tamper (VSM don’t use tampers as wiring supervisions are provided by VSA-1)
Electrical Connections| Two 1/2″ conduit openings
Humidity| 85%

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References

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