Cooper Security 9751 Manual de instalación descargar pdf (Pagina 48)

3. Installation

Page 40 496964

Connecting the Telephone Line

Connecting the telephone line directly to the terminals on the internal

communicator, or indirectly through other apparatus, can produce hazardous

conditions on the telephone network. Always seek advice from a competent

telephone engineer if in any doubt about connecting to these terminals.

Example – connecting a line in the UK:

The internal communicator must be connected to the PABX system by:

a) If the wiring is owned by British Telecom:

British Telecom.

b) If the wiring is not owned by British Telecom, one of:

(i) British Telecom.

(ii) The authorised maintainer.

(iii) A professional Installer, after 14 days written notice to the

authorised maintainer.

To connect the telephone line:

a) If the telephone line is already terminated with a suitable lead and plug:

Insert the plug into the RJ11 connector (see Figure 29).

b) Otherwise (see Figure 30):

(i) Using three-core cable (type 1/05mm CW1308), strip 5mm of two

cores and feed the cable through one of the entries in the rear of

the control unit. Connect the two cores to terminals A and B on the

main PCB.

(ii) Connect the other end of the two cores to the corresponding

terminals on the BT master box.

(iii) If other apparatus is to share the telephone line with the internal

communicator (in series), connect the main apparatus to the series

switched line connections marked A1 and B1.

Caution: Only one such series apparatus is allowed to be connected

between a main apparatus (such as a telephone) and the PSTN.

Ensure that the A and B lines are connected the right way around. The

internal communicator continuously monitors the line for ringing tones.

5 or A

2 or B

Primary

Line

Diverted

Line

BT master Box

(Exclusive Line)

Telephone line to other equipment

for example: Fax, answer machines.

Figure 30. Connecting the Internal Communicator

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Cooper Security 9751 Manual de instalación Pagina 48

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