Table of Contents
Advertisement
11. This apparatus has been approved for the use of the following facilities:
Storage of Telephone Numbers for Retrieval by Predetermined Code
Automatic Call Initiation
Operation in the Absence of Proceed Indication (Although not Detected)
Automatic Dialling Facilities
Auto-Calling Facility
Loudspeaking Facility
Series Connection Facility
Automatic Storage of Last Number Dialled
Tone Detection - Busy Tone
Repeat Attempt Facilities: Multiple (Automatic)
Auto Clear from Call Originating End
Integral Modem
Any other usage will invalidate the approval of the apparatus if as a result it then ceased to
conform to the standard against which approval was granted.
13. Connection to a PBX - it cannot be guaranteed that the apparatus will operate correctly under
all possible conditions connection to compatible PBX's. Any cases of difficulty should be
referred in the first instance to the supplier of the telephone apparatus.
14. This apparatus provides an off hook detector and switching of the line between the telephone
and modem. The voltage drop introduced by this apparatus into the loop connection between
the main telephone and the network at a current of 40ma d.c. is 0.3 volts.
15. Only apparatus conforming with BS6301 or EN41003 may be connected to the series socket.
Any interconnection between the above socket and other connections, directly or by the way
of other apparatus, may produce hazardous conditions on the BT network. Advice should be
obtained from a competent engineer before any such connection is made.
16. With reference to EN41003 cl 4.1.3 the apparatus is supplied with a connection to the Public
switched telephone network, which is refered to as a TNV circuit. There is also an optional
printer port that may be fitted, which is refered to as a SELV circuit.
Please ensure that the TNV circuit is only connected to another TNV circuit and that the SELV
circuit is only connected to other SELV circuit.
17. The apparatus does not recognise a secondary proceed indication.
18. Although this equipment can use either loop disconnect or DTMF signalling, only the
performance of the DTMF signalling is subject to regulatory requirements for correct
operation. It is therefore strongly recommended that the equipment is set to use DTMF
signalling for access to public or private emergency services. DTMF signalling also provides
faster call set up.
155
Advertisement
Table of Contents
