Accord XPC, Installation Manual, Page: 9 / 62

3
IE1-1230-B February 2001
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. If the BT
master socket is a newer type (
NTE
5/
CTE
5), the connection can be carried out by the
installation engineer. If the BT master socket is not an
NTE
5/
CTE
5, then the connection
must be made by the network operator. The Accord control panel should be connected to
the BT master socket using cable suitable for connection to 2.8 mm diameter screw
terminals.
Note: Prevent exposure to potentially lethal voltages from the PSTN by replacing the
Control Panel cover when connection to the BT master socket is complete.
Inter-connection circuit equipment should 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. Compliance must continue 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.
The Accord xpC has been approved for the use of the following facilities:
• Auto-dialling.
• Auto-answering.
• Auto-clearing.
• Modem communications.
• Series connection.
• Operation with Call Process Monitor (CPM) tone recognition.
• Multiple repeat attempts.
Any other usage invalidates the approval of the Accord xpC if, as a result, it then ceases
to comply with standards against which approval was granted.
Approval of the Accord xpC is also invalidated if it is used with internal software or