Installation manual

Windsor 500 Installation Manual - Issue C
-
28
-
Concentrators
All detectors are connected to Windsor via a concentrator input. There are two types of
concentrator; an internal concentrator which is plugged onto the main PCB and external
concentrator which is connected to Windsor on a 4 wire bus. Internal concentrators can have
4 or 8 inputs. External concentrators always have 8 inputs. Internal and external concentrators
can also be supplied with different input connections; end of line (EOL) or no end of line
(NEOL) for the internal concentrator and EOL, NEOL or high security (HS) for the external
concentrator. Internal and external concentrators have 2 programmable outputs and the
external concentrator can be fitted with an optional 8 output daughter board.
Concentrator
Cable Length
The maximum specified length of cable is calculated for a single concentrator and assumes
that all detectors connected to the concentrator are always powered from a local auxiliary PSU.
Maximum Concentrator Cable Length (m)
Power Source Un-screened Cable Screened Cable
Control Panel 400
10
400
10
Local Aux. PSU 3000
11
2000
11
If auxiliary PSUs are used then all 0v connections must be connected to the control
panel 0 volt terminal.
The installation information in the following section refers to the Windsor concentrator. The
Vigil concentrator (EOL and HS types) can be identified by the DIL switch used for setting the
concentrator address.
10
The maximum length of cable can be increased to 700m by using 2 cores for the positive and ground
supply to the concentrators.
11
These figures represent the absolute maximum cable length.