Security Link SL150 Guia de Resolução de Problemas descarregar pdf (Página 111)

22–1

SECTION 22

System Communication

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In This Section

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Panel Communication with Central Station

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Report Code Formats

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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 will send

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

the kissoff frequency will not be given by the Central Station receiver.

The panel will make 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 will display COMM. FAILURE (on alpha

keypads) or FC (on fixed-word keypads).

Report Code Formats

The following chart indicates the characteristics of the various reporting formats that the this control

panel supports:

FORMAT HANDSHAKE TRANSMITS KISSOFF TRANSMIT

TIME DATA

Low Speed

1400Hz 1900Hz (10PPS) 1400Hz Under 15 secs.

3+1 (Standard report)

4+1

4+2

Sescoa/Rad

2300Hz 1900Hz (20PPS) 2300Hz Under 10 secs.

3+1 (Standard report)

4+1

4+2

Express 4+2 1400–2300Hz DTMF (10 cps) 1400Hz Under 3 secs.

Contact ID 1400–2300Hz DTMF (10 cps) 1400Hz Under 3 secs.

The following describes each format in greater detail.

1 2 ... 106 107 108 109 110 111 112 113 114 115 116 ... 143 144

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