Specifications

HY-03 User Handbook

TECHNICAL SPECIFICATION

Please note the Lamp output is only capable of driving loads up to 40mA , when

connecting any loads the current should be limited to this value using a series resistor.

For example a 390 ohm resistor would limit the current to 38mA.

To connect/disconnect the unit pins 1 and 2 should be connected together via a

contact closure or equivalent. Care should be taken that pin 3 is not connected to pins

1 or 2 and that incompatible external signals are not used. Incorrect conguration can

result in the failure of the connect/disconnect transistor and protection diode which

leaves the unit permanently latched in a connected state and therefore unusable.

As this fault is caused by using the unit outside of its recommended operating

conditions it will not be covered under warranty.

Telephone Handset

This is the connection for a telephone handset and is an RJ11 socket. There is a converter

supplied with the HY-03 for accepting a standard BT605A telephone plug.

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.

Mains Input

The power supply is connected via an IEC Connector (CEE22, 230V - 50Hz, or 115V – 60Hz).

Protective Earth Terminal

This earth bond screw terminal is a screen terminal which must be connected to an

earth point.

Pin 6 Pin 1

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