Digital Watchdog D2365T Manual de Instalação descarregar pdf (Página 26)

Duet2 D2600 / Duet3 D2650 Installation Manual – EU-D2600-D2650-INST/A10/v1 - 26

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APPENDIX 3

ADSL (Asynchronous Digital Subscriber Line) or ‘Broadband’

When an analogue PSTN telephone line also carries ADSL (Broadband) signals and it is used

by a security system e.g. the Duet, then a Security ADSL filter MUST be used.

A filter is used to separate the analogue telephone signals from the ADSL (broadband) digital data

signals because the phone or security system may be disrupted or completely inhibited if ADSL

(broadband) digital data is allowed into them from the telephone line.

The D0730 Security ADSL Filter is designed specifically for use with security systems. It includes

spare terminals to aid wiring that are labelled ‘Pass Through’. This item meets all of the requirements

of the British and European telephone and security standards.

Other types of filter and plug-in filters should not

be used for series connection of a security system

to the telephone line. These types are for use

with telephones, fax machines etc…

Plug-in filters are available from the telephone service

provider and many electrical distributors including:

CPC Part Number: TE 04367 or TE04070

Farnell Part Number: 418-5328 or 506-0205

Maplin Part Number: A61AK or A72AG

Serial connection to a PSTN (and broadband)

telephone line is shown in Fig 8.

The installer must ensure that:

1. The user’s telephone wiring is disconnected from the NTP and reconnected to the D0730

ADSL Filter only.

2. The NTP connects only to the D0730 ADSL Filter and to no other wiring or telephone

sockets.

3. The wiring between the NTP and the D0730 ADSL Filter cannot be unplugged by the

user.

4. The user cannot plug a phone/fax etc. into the NTP.

5. The terminals 2, 3 and 5, A and B and A1 and B1 are connected exactly as shown.

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D0700 – Security

ADSL Filter

Fig 7

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Digital Watchdog D2365T Manual de Instalação Página 26