ADT ACCORD XPC, Installation Manual

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3 Accord xpC - July, 2001
close to other system cables inside or external to the enclosure.
The control panel enclosure must not be opened before isolating the mains supply. The
cover must be securely fitted in normal use.
Mains Cable Type
The conductors of the mains supply cable must have a minimum cross-sectional area of
0.75 mm and the insulating material on each conductor must be a minimum of 0.4 mm
thick Polyvinyl Chloride (pvc). Flexible cables must conform to the requirements of
BS6500 and IEC Publication 227. Non-flexible electrical installation cables must conform
to BS6004.
Telecoms Approvals
Connection to the PSTN
The Telecommunications Network Voltage (TNV) port (terminals A and B on TB5)
must be permanently connected (hard-wired) to the PSTN via a BT master socket. The
master socket is sealed to prevent use by the customer. The ADT socket is the customer
master, which supplies all other telephone points in the premises.
If the BT socket is not the NTE5 type then the TNV port (terminals A and B on TB5) is
connected to the BT master socket via the terminal block in the back of the ADT socket.
Connection to the old type of master socket cannot be performed by an ADT engineer
and must be made by the network operator. A line jack and captive locking bar are used
to prevent the customer from unplugging the alarm from the telephone. The Accord
Control Panel is connected to the BT master socket using cable suitable for connection to
2.8 mm diameter screw terminals.
Note: To prevent exposure to potentially lethal voltages from the PSTN, the cover of
the Accord enclosure must be replaced whenever any connection to the BT
master socket is completed .
Interconnection circuits should be such that the equipment continues to comply with the
requirements of 4.2 of EN41003 for TNV (Telephone Network Voltage) circuits and 2.3
of EN60950 of SELV (Safety Extra Low Voltage) circuits, after making connections
between circuits.
Approvals
The Accord xpC is approved for connection to direct lines of the PSTN and PBX exchanges
(with or without secondary proceed indication).
It should be noted that the Accord xpC is not suitable as an extension to a payphone.