DHY-03 User Handbook
37
Telephone Handset
This is the connection for a telephone handset and is an RJ11 6/4 socket. There is a
converter lead supplied with the DHY-03 for accepting a standard BT605A telephone plug.
The connection details are the same as for the Telephone Line connector.
Telephone Line
This is the telephone line connection and is an RJ11 6/4 socket. Two cables are supplied with
the unit, to connect this either to a UK BT line jack socket, or an RJ11 socket. The telephone
line is connected via Pins 3 and 4 on the RJ11 and Pins 2 and 5 on the BT Plug (the latch
adjacent to Pin 6).
RJ11 Telephone Connections
Pin 1 : N/C
Pin 2 : Earth recall
Pin 3 : Telephone line A
Pin 4 : Telephone line B
Pin 5
: Ringer
Pin 6
: N/C
Note: When not used in the UK, connect pins 3 and 4
only for operation.
Conference Audio/Record Output
This is an RJ45 analog audio connector to cross connect to another DHY-03. This will allow a
single TBU channel on a mixing desk to handle 2 calls, one to each DHY-03. Alternatively the
conference output signals can be used as a record output by fitting the JP3 jumper on the
main PCB. The output is then a sum of the caller and main audio input so both sides of the
conversation can be recorded from this output.
Pin 1 : N/C
Pin 2 : N/C
Pin 3 : Conference Input (phase)
Pin 4 : Conference or Record Output (phase)
Pin 5 : Conference or Record Output (non-phase)
Pin 6
: Conference Input (non-phase)
Pin 7
: N/C
Pin 8
: N/C
Mains Input
The power supply is connected via a filtered IEC Connector and is continuously rated
85-264V AC @ 47-63Hz
Protective Earth Terminal
This earth bond screw terminal is a screen terminal that must be connected to an
earth point.
TECHNICAL SPECIFICATION
Pin 6
Pin 1
Pin 1
Pin 8
TECHNIC
AL SPECIFIC
A
TION
4
BT Telephone Connections
Pin 1 : N/C
Pin 2 : Telephone line A
Pin 3 : Ringing
Pin 4 : Connected for neatness only
Pin 5
: Telephone line B
Pin 6
: N/C
RJ11 Socket
BT Plug
6
5
4
3
2
1