Wiring the X-BUS Interface

The X-BUS interface connects expanders and keypads to the SPC controller. The X-BUS can be wired in a number of different configurations, depending on the installation requirements.

The following table lists the cable types and distances recommended:

Maximum cable length = (number of expanders and keypads in the system) x (maximum cable distance for each cable type)

 

Cable Type	Distance
CQR Standard Alarm Cable	200m
UTP Cat-5 Solid core	400m
Belden 9829	400m
IYSTY 2x2x0.6(min)	400m

The following diagram shows an example of wiring the X-BUS:

Number	Description
1	SPCP355.300 Smart PSU outputs
2	SPC Controller
3	SPCP355.300 Input/Output expander
4	Next expander
5	Next expander