Brainboxes PX-246 Especificaciones descargar pdf (Pagina 17)

Specification

3.8.4 DSENET® FOR EXPANSION MODULES

DSENet® is the interconnection cable between the host controller and the expansion module(s) and

must not be connect to any device other than DSE equipment designed for connection to the

DSENet®

Cable type Two core screened twisted pair

Cable characteristic

impedance

120Ω

Recommended cable Belden 9841

Belden 9271

Maximum cable length 1200m (¾ mile) when using Belden 9841 or direct equivalent.

600m (666 yds) when using Belden 9271 or direct equivalent.

DSENet® topology “Daisy Chain” Bus with no stubs (spurs)

DSENet® termination

120Ω. Fitted internally to host controller. Must be fitted externally to the

‘last’ expansion module by the customer.

Maximum expansion

modules

Total 6 devices made up of DSE2130 (up to 2), DSE2157 (up to 2),

DSE2548 (up to 2)

This gives the possibility of :

Maximum 16 additional inputs (DSE2130)

Maximum 20 additional relay outputs (DSE2157)

Maximum 20 additional LED indicators (DSE2548)

NOTE: As a termination resistor is internally fitted to the host controller, the host

NOTE: As a termination resistor is internally fitted to the host controller, the host NOTE: As a termination resistor is internally fitted to the host controller, the host

NOTE: As a termination resistor is internally fitted to the host controller, the host

controller must be the ‘first’ unit on the DSENet®. A termination resistor MUST be fitted to

controller must be the ‘first’ unit on the DSENet®. A termination resistor MUST be fitted to controller must be the ‘first’ unit on the DSENet®. A termination resistor MUST be fitted to

controller must be the ‘first’ unit on the DSENet®. A termination resistor MUST be fitted to

the ‘last’ unit on the DSENet®. For connect

the ‘last’ unit on the DSENet®. For connectthe ‘last’ unit on the DSENet®. For connect

the ‘last’ unit on the DSENet®. For connection details, you are referred to the section

ion details, you are referred to the section ion details, you are referred to the section

ion details, you are referred to the section

entitled ‘typical wiring diagram’ elsewhere in this document.

entitled ‘typical wiring diagram’ elsewhere in this document.entitled ‘typical wiring diagram’ elsewhere in this document.

entitled ‘typical wiring diagram’ elsewhere in this document.

3.9 ADDING AN EXTERNAL SOUNDER TO THE APPLICATION

Should an external alarm or indicator be required, this can be achieved by using the DSE

Configuration Suite PC software to configure an auxiliary output for “Audible Alarm”, and by configuring

an auxiliary input for “Alarm Mute” (if required).

The audible alarm output activates and de-activates at the same time as the module’s internal

sounder. The Alarm mute input and internal alarm mute button activate ‘in parallel’ with each other.

Either signal will mute both the internal sounder and audible alarm output.

Example of configuration to achieve external sounder with external alarm mute button:

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Brainboxes PX-246 Especificaciones Pagina 17

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