Shunt Inputs - Pyronix PCX-256 Programming Manual

Input Name
If you would like to enter a name for the input,
select the key. Text programming is
described on page: 10. Select the
Repeat all the above for further inputs, or press
the key to return to the Engineers Menu.
NOTE: After programming the inputs, it is necessary to exit the Engineer Menu for the
programming to take effect, before the inputs are walk tested, etc.

5.6.7 Shunt Inputs

A shunt group may consist of any number of inputs programmed as Immediate, Tamper, 24hr and
Access types. These must all be allocated in the same partition. NOTE: These will need to be
programmed first.
A maximum of 128 on the PCX 256 (i.e. half the number of inputs on the system).
The inputs in the shunt group/list will only activate after 10 seconds of the nominated shunt input.
For example, if input 1 is programmed as 'Shunt Input', and inputs 2 and 3 are programmed as
"24hr", then once input 1 has been opened, after 10 seconds inputs 2 and 3 become active.
Action
Shunt Input closed
(shunted)
Shunted Input triggered
Shunt Input opened
(unshunted)
After 10 seconds
Shunt Input opened with
an active detector
(attempting to unshunt)
Active input clears
After 10 seconds
Shunted input triggered
(whilst not triggered)
RINS868-6
key.
Status
Inputs within the shunt list are
inactive
No response
-
Inputs in the shunt list are active
-
-
Inputs in the shunt list are active
Normal input response
PCX 256 PROGRAMMING MANUAL
Outputs
The 'Follow Input' PGM output live
The 'Follow Input' PGM output
clears. The 'Shunt Fault' PGM
output is live for 10 seconds.
Indications off.
The 'Follow Input' PGM output
clears. The 'Shunt Fault' PGM
output pulses until the shunt is reset
or the input fault clears.
The 'Shunt Fault' PGM output is live
for 10 seconds.
Indications off.
(Note: depends upon the status of
the partition in which the shunt is
located).
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