ADEMCO Symphony 8142 Setup Guide download pdf (Page 83)

6-1

SECTION 6

System Communication and Operation

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Panel Communication with Central Station

This system accommodates several formats for reporting alarms and other system conditions to the

Central Station. The process of a successful transmission consists of both the method of communication

between the control panel and the Central Station receiver; and the actual way the information is sent

and displayed at the Central Station.

When the panel calls the Central Station receiver, it waits to hear a “handshake” frequency from the

receiver to confirm that the receiver is on-line and ready to receive its message. Once the panel hears

the handshake it is programmed to listen for, it sends its message. The panel then waits for a “kissoff”

frequency from the receiver acknowledging that the message was received and understood.

If the handshake frequency is not given or is not understood by the panel, the panel will not send its

message. Once the handshake frequency is received and understood by the panel, the panel sends its

message. If there is an error in the transmission (the receiver does not receive a “valid” message), the

kissoff frequency is not given by the Central Station receiver.

The panel makes a total of eight attempts to the primary telephone number and eight attempts to the

secondary telephone number (if programmed) to get a valid message through. If the panel is not

successful after its numerous attempts, the keypad displays COMM. FAILURE (on alpha keypads) or

FC (on fixed-word keypads).

Report Code Formats

The following chart indicates the types of (handshake/kissoff) frequencies that the panel supports and

the different formats that can be sent with each.

FORMAT HANDSHAKE TRANSMITS DATA KISSOFF TRANSMIT TIME

Low Speed 1400 Hz 1900Hz (10PPS) 1400 Hz Under 15 secs

3+1, 4+1, 4+2 (Standard report)

Sescoa/Rad 2300 Hz 1800Hz (20PPS) 2300 Hz Under 10 secs

3+1, 4+1, 4+2 (Standard report)

Robofon 8 See Robofon 8 paragraph later in this section for details of the format.

Express 1400–2300 Hz DTMF (10 cps) 1400 Hz Under 3 secs

4+2 (multi-frequency)

ADEMCO

Contact ID

1400–2300 Hz DTMF (10 cps)

(multi-frequency)

1400 Hz Under 3 secs

Robofon

Contact ID

2300 Hz DTMF (10 cps)

(multi-frequency)

1400 Hz Under 3 secs

1 2 ... 78 79 80 81 82 83 84 85 86 87 88 ... 111 112

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ADEMCO Symphony 8142 Setup Guide Page 83