BusinessPhone Communication Platform 4.0
Installation Instruction ASB 150 02

## Auxilary Equipment

### Music Input

The music output from a radio, tape recorder or similar is fed into the system via the CPU-D_ or AUX boards. By programming the exchange, the output from the connected equipment can be distributed throughout the system.

#### Hardware installation

A twisted pair or a shielded cable should be connected from the tape recorder output on a radio or tape recorder to a1, b1 on the connector block of the Ericsson standard MDF cable TSR 902 0444/1.

The Ericsson standard MDF cable will carry all connections of the CPU-D_ and AUX options, to the MDF. If any of the board options are installed in the system, this cable is already installed.

It is also possible to connect a cable from the music equipment directly to the input of the CPU-D_ or AUX board front. The connection should then be made to pins A10, A12 of connector 6 for CPU-D/1 or AUX/1 and to pin A18, A20 of connector 4 for CPU-D_ and AUX/2. Refer to front connections on CPU-D_ CPU-D4 (ROF 157 5124/_).

#### Technical data

Music input:

- Impedans: 600 ohm
- Voltage: 1 V max

### Temperature Sensor

#### Hardware installation

This describes how to install the water proof temperature sensor RPM 603 339. The temperature sensor(s) may be located outdoors to measure the outdoor temperature. The sensor(s) are connected to the exchange by a 10m cable. The temperature is displayed on the digital phones with display. The temperature trend, increasing or decreasing, is indicated by” ^” for increasing and “v” for decreasing. Please note that the indication of the temperature trend, for the first 30 minutes after installation may not be correct (while reference values are being recorded).

To connect the temperature sensor(s) to the CPU-D or AUX board, the standard i/o cable TSR 902 0444 may be used. This cable will carry all feature connections from the CPU-D_ board to the MDF (Main Distribution Frame). Should this system already be using some of the system features (music input, alarm output, alarm input or temperature sensors) there is already such a cable installed. It is possible to connect 3 external temperature sensors to either board type.

These components are necessary to install the temperature function:

- Cable kit RPM 603 339/1 which contains:

- the cable with temperature sensor
- a wood screw

If the sensor is to be placed outside it is preferably mounted on an outside wall, with the supplied screw, that is not placed in direct sunlight. A desirable place is for instance a shady place under the roof. Try not to place the sensor near a window that is often open for airing or near an output for the ventilation. If the sensor is located more than 10 m from the exchange, we recommend you to use a twisted pair cable for extension.

The wires are connected to the connection block pin a5 and b5, a6 and b6, a7 and b7 (polarity independent)

Refer to front connections on CPU-D_ CPU-D4 (ROF 157 5124/_).

#### Technical data

- Measurement accuracy:

- ± 0.5˚ C (between –24 ... +75˚ C)
- ± 1˚ C (between –40˚ C ... +100˚ C)

- Temperature range: –40 ... +75˚ C
- Maximum recommended line length: 50 m

Revision: A © Ericsson Enterprise 2003