Alexor PC9155G-868 Installation Guide download pdf (Page 76)

PC9155 Wireless Alarm Panel

APP-6

Appendix C: 2-Way Audio Verification (PC5950)

Not approved for use with UL/ULC listed installations.

Audio Verification provides Talk and Listen-in capability for audio verification of alarms. This allows the central station to communicate with the

occupants through the microphone and speaker of the alarm system. The commands indicated below are a subset of the SIA Audio Verification

Standard (November 11, 1997).

The 2-way Audio Session

1. Zone Violation: A 2-way audio session begins with the violation of a zone that has zone attribute 9 enabled. By default, a 2-way audio session is initiated for

all zone types except the following:

• Supervisory, zone 9

• Keyswitch zones, zone 22 and 23

• 24-Hour Non-Alarm (local), zone 26

• 24-Hour Non-Latching Tamper, zone 36

• 24-Hour Carbon Monoxide (wireless), zone 81

• Audio Verification Monitor, zone 82

• Fire Zones, zone 87, 88, 89 and the Fire Key

For more information, see section [101]-[134], attribute 9 in Chapter 5.

By default one-way audio (Listen-in only) is initiated by the following:

• Silent Panic events (Silent [P], Silent Panic zone)

• Duress alarm

• Silent zone alarm (Zone attribute 1 OFF)

Note: The Speaker is always OFF during silent alarms.

2. Communication to the Monitoring Station: When an alarm is triggered one of the following reporting codes/actions is sent to the monitoring station:

3. Alerting the Operator: When the reporting code is received by the monitoring station or a 2-way session is automatically initiated, a 2-way Initiation

(Start) tone will be sounded to alert the operator. A high (1800 Hz) tone and a low (900 Hz) tone are used to generate the session tones listed below.

Short tone duration is 100ms. Long tone duration is 1 second:

4. Initiating, Control and Termination of the Session: The Operator controls the session by using the following Audio Control Telephone Key func-

tions.To select the following commands, press [

✱ ][0] followed by the key number(s) indicated below:

Format Reporting Code/Event

SIA L90

Contact ID 606

BPS Communicates the Event, then automatically enters into 2-way Audio mode

Two-way Initiation (Start) Tone:

3 Hi Tones (Short) After the third short hi tone has sounded, the system switches directly into Listen-in mode without a keypress from the mon-

itoring station.

Reminder Tones:

1 Hi Tone (Short) 1 short hi tone indicates 20 seconds are left in the audio session.

1 low Tone 1 short low tone indicates 10 seconds are left in the audio session.

Key Command Description

0 Future Use

1 Hi-Gain Talk to Speaker Connects the monitoring station to the speaker at the high volume output level.

2 VOX Mode Connects the monitoring station to the system in VOX Mode (See VOX Support below).

3 Hi-Gain Listen to Microphone Connects the monitoring station to the microphone at the high gain input level.

4 Lo-Gain Talk to Speaker Connects the monitoring station to the speaker at the low volume output level.

5 Future Use

6 Lo-Gain Listen to Microphone Connects the monitoring station to the microphone at the low gain input level.

7 Extend Time Restarts the session timer (90 seconds) to prevent time out. To extend the time and take no other

action use this function. Pressing any key automatically extends the time.

88 Future Use

99 Disconnect Disconnects the session. The second “9” must be pressed within 1 second of pressing the first “9”.

Use the “Disconnect” key sequence before hanging up during a Talk / Listen-In session.

VOX Support: When in VOX mode the system automatically switches between the phone line and internal microphone/speaker depending on which

one is loudest. Push-to-talk overrides VOX - this is performed by switching into Talk mode at the monitoring station.

Hang-up Auto-detection: The system automatically disconnects if the central station receiver disconnects before the operator picks up the line. 5 sec-

onds of continuous dial tone or a busy tone is considered disconnect criteria.