Zone Doubling - DSC PowerSeries PC1404 V1.1 Installation Manual

PC1404
Normally Closed (NC) Loops
ANY Z ANY COM
TERMINAL
TERMINAL
To enable normally closed loops, Section [013], Option [1] must
be ON.
Note: This option should only be selected if Normally Closed
(NC) detection devices or contacts are being used.
Single End Of Line (EOL) Resistors (5600)
To enable panel detection of single end of line resistors, Section
[013], Options [1] and [2] must be OFF.
Note:
This option should be selected if either Normally Closed (NC)
or Normally Open (NO) detection devices or contacts are being
used.
Double End of Line (DEOL) Resistors
Double End of Line resistors allow the panel to determine if the
zone is in alarm, tampered or faulted.
To enable panel detection of double end of line resistors, Section
[013], Option [1] must be OFF and Option [2] must be ON.
Note: If the Double EOL supervision option is enabled, all hard-
wire zones on the main panel must be wired for Double EOL
resistors, except for Fire, CO and 24-hr Supervisory zones.
Note: Do not use DEOL resistors for Fire zones, CO zones or
24-hr Supervisory zones. Do not wire Fire zones to keypad zone
terminals if the DEOL supervision option is selected.
Note: This option can only be selected if Normally Closed (NC)
detection devices or contacts are being used.
The following chart shows zone status under certain conditions:
Loop Resistance
0 (shorted wire, loop shorted)
5600 (contact closed)
Infinite (broken wire, loop open)
11200 (contact open)
6
ANY Z ANY COM
TERMINAL
TERMINAL
Loop Status
Fault
Secure
Tamper
Violated
End of Line Resistors ............................... Section [013]: [1]
Double End of Line Resistors .................. Section [013]: [2]

2.10 Zone Doubling

Zone Doubling is a feature that will allow you to double the
zones on the main board from 4 to 8. To enable zone doubling,
Section 13 Option [7] must be ON. All zones must be wired
according to the following diagram. Only Normally Closed
devices can be used with zone doubling.
Zone input
Wire A
RZ1
RE1
TAMPER N.C.
Zone 1, 2, 3, 4
RE1 RZ1
1500 5600
Note: All resistors are 5% tolerance.

The loop using the 1500 and 5600resistors is the first zone
(Zone 1, 2, 3, or 4). The loop using the 1500and 2400
resistors is the second zone (Zone 5, 6, 7, or 8). For example,
loop 1 is Zone 1 and loop 2 is Zone 5. The following table shows
zone status under certain conditions:
Nominal Tamper Zone 1


11000 – open
8600 – open
7100 –
5400 – restore
3900 –
3000 – restore
1500 –
Note: The following will be seen by the installer if the end-of-
line resistors have not been installed correctly, when both zones
are physically closed:
Zone 1 open, Zone 5 This may be caused by RE1 and RZ1 as
restored well as RE5 and RZ5 being switched.
Both zones showing This may be caused by RE1 and RZ1, or
as faulted. RE5 and RZ5, being switched.
Note: If zone doubling is enabled, fire zones should not be pro-
grammed. 2-wire smoke loops can still be used.
Note: If zone doubling is enabled, keypad zones should not be
programmed.
Note: If fire zone types are programmed in Section [001], or if a
keypad zone has been assigned, it will not be possible to enable
the zone doubling option in Section [013].
COM
Wire B
RZ5
RE5
TAMPER N.C.
Zone 5, 6, 7, 8
RE5 RZ5
1500 2400
Zone 5 Fault
– – –
open –
restore –

– –
open –

– –
restore –
– –