Dycon D0730 User manual

D0730 ADSL (Asynchronous Digital Subscriber Line)
‘Broadband’ Filter
When an analogue PSTN telephone line also carries ADSL (Broadband) signals and it is used by a
security system (e.g. Control Panel, Dualcom, DigiCom), 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.
PSTN Connection
using the
D0730 Security ADSL Filter
Fig 2
The Dycon D0730 Security ADSL Filter is designed specifically for use with secu-
rity 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,
safety and security standards. See Fig 1.
Other types of filter and plug-in filters should not be used for Series Connection
of a security system to the telephone line. Plug-in types are for use with tel-
ephones, fax machines etc. Plug-in filters are available from the Telephone Serv-
ice 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 2.
The installer must ensure that:
D0730
Security ADSL Filter
Fig 1
1
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 the D0730 ADSL Filter can not be unplugged by the user.
4. The user can not plug a phone/fax etc. into the NTP.
5. The terminals 2,3 & 5, A & B and A1 & B1 are connected exactly as shown.
DigiModem
Dualcom
etc.
AH073000-D01 18/6/2005

PSTN Connection
using a Master Socket & the
D0730 Sercurity ADSL Filter
Fig 3
Serial Connection using a Master Socket to a PSTN and Broadband telephone line is shown in Fig 3. This
allows a 2 wire connection to the NTP (which can make wiring easier) but requires the Installer to fit a Master
Socket.
A PSTN Master Socket type LJU2/4A is suitable and has screw terminals. These can be obtained from many
electrical distributors including:
CPC Part Number: TE 00666
Farnell Part Number: 916-638
Maplin Part Number: FT48C
Rapid Part Number: 24-0116
RS Part Number: 472-534
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 the D0730 ADSL Filter can not be unplugged by the user.
4. The user can not plug a phone/fax etc. into the NTP.
5. The terminals 2,3 & 5, A & B and A1 & B1 are connected exactly as shown.
2
Q. Why is a Broadband Filter necessary ?
A. When ADSL (Broadband) digital data is supplied on a normal PSTN telephone line then...
an ADSL (Broadband) Filter must be fitted between that telephone line and each item of ‘non digital’ equipment
because the operation of ‘non digital’ equipment may be disrupted or completely inhibited if ADSL (Broadband)
digital data is allowed into it from the telephone line.
‘Non digital’ equipment means anything that would be used on a normal analogue PSTN telephone line, i.e. a
Phone, Fax machine, Dualcom, Digital Communicator, Control Panel Digi-Modem.
DigiModem
Dualcom
etc.