3
The Ringer Equivalence Number (or REN) value allows you to establish how many telephones or
pieces of equipment, such as this equipment, you can connect to your line. To find out the REN
value of the apparatus on your line, add up the REN values of each item of apparatus connected.
Any B.T instrument is assumed to have an REN of 1, unless otherwise stated. If you connect
apparatus such that the total REN value is more than 4, one or more pieces of equipment may not
ring and/or answer calls correctly. The REN of this equipment is 4.0. It is not intended for connection
in parallel with other terminal equipment.
4
The equipment has been approved for use of the following facilities:
Auto Answering
Recording and Answering
Auto Dialing
It may help callers if your outgoing answering machine message includes your full telephone number.
This product must be installed in accordance with the installation instructions contained in this manual.
CE Marking (Europe)
This equipment complies with the requirements of the EMC Directive (89/336/EC) and the Low Voltage
Directive (73/23/EC) provided that all equipment used also carries the CE Mark and the installation
follows the instructions given in this manual
. The equipment has been tested to EN55022 Part B;
Conducted and Radiated Emissions.
Safety Status of Connecting Ports
The following circuits are present within the equipment with the safety status specified in
the table below:
SELV
Terminal Block for X10 TW523 (MJ3)
SELV
Terminal Block with 12V supply for external circuitry
SELV
Terminal Block to Transformer Secondary
SELV
Battery Connector connected to standby battery (BATT)
SELV
Terminal Blocks to Outputs, Zones, Bell, Strobe, speaker
SELV
Box headers connected to Expansion Modules (J7,J5)
TNV
Incoming and Outgoing telephone lines (MJ1, MJ2)
Safety Status
Connector
Comfort II Supplementary Installation Manual
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