Introduction
6
Sonifex HY-02 User Handbook
Using the HY-02
Receiving a Call
With the equipment connected as in Figure 1-1 calls may be received and detected by the ringer in the telephone
handset. To receive the call lift the handset and establish contact with the caller. The call may be diverted to the
telephone hybrid by pressing either the local LINE CONNECT switch at the front panel or by means of the remote DIVERT
switch (if connected).
The hybrid unit will now behave as a 4 wire to 2 wire convertor with signal inputs at LINE or MIC Input and telephone
signal output at LINE output.
The call may be cleared by repressing the LINE CONNECT switch or by means of the K-break provided in the equipment.
(Automatic line clearance is provided when the caller hangs up when pins T2 and T3 are linked on the HY-02-A circuit
board).
Alternatively, the ringing detector RD-02 may be connected to the series connection ‘HANDSET’ of the HY-02 and the
handset connected to the HANDSET connection of the RD02 ringing detector, as in Figure 1-2. This connection will allow
you to auto-answer incoming calls. It is recommended that the K-break line clearance is used with any ringing detector
connection. When the ringing detector is in use, ringing tone will energise the LINE CONNECT switch through the
interconnection between the two units HY-02 and RD-02 to provide auto answer of incoming calls. The LINE CONNECT
switch lamp is ‘DIM’ in the non’ connected mode and ‘BRIGHT’ in the connected mode.
With both auto-answer and auto-clearance in use, call handling can be completely automatic in operation.
Making a Call
To initiate a call, lift the handset and dial the required telephone number. When the call has been established, press the
LINE CONNECT switch and the call will be handed over to the telephone hybrid unit. To clear the line at the end of the
call, press the LINE CONNECT switch. The LINE CONNECT switch lamp is ‘DIM’ in the non-connected mode and ‘BRIGHT’
in the connected mode.
Please note that any adjustments and settings should be carried out by competent engineering personnel.
Front Panel Controls and Displays
LED Indicators
There is one LED indicator providing general information about the equipment. A status LED, marked “On”, shows that
the equipment is powered and operational.
Line Connect Switch
This is the front panel button used to connect calls to and disconnect calls from the telephone line. It can be remoted by
using a Remote Divert switch and the connection signal can be made permanent or momentary by adjusting switch
setting SW1 (see page 11 for further information).
