Spectra 1759ex, Reference And Installation Manual, Page: 9 / 56

S
PECTRA
1759EX
7
each control panel. After connecting the device, the zone's parameters must be defined. For details on zone recognition and
Zone Programming on page 13. Also, refer to the feature Reassign Keypad Zone 2 on page 13.
Example: A door contact located at the entry point of an establishment can be wired directly to the input terminal of the entry
point keypad instead of wiring the door contact all the way to the control panel.
Figure 2.5: Keypad Zone Connections
When a 1641 LCD keypad is connected to Spectra, the Keypad Zone Sending option (Option [2] key [1] ) determines
whether the status of the keypad zone will be transmitted to the control panel. The Keypad Zone Sending option of the
1641 keypad must be enabled during the following conditions:
• If you are using both keypad zones and at least one is from a 1641 keypad.
• If you are using the keypad zones of other types of keypads, such as a 1686H 10-zone LED keypad, and the
keypad zone definition of the 1641 keypad (keypad zone 1 or keypad zone 2; Option
[2] key [3] ) matches that of
another connected keypad.
2.11 KEYSWITCH CONNECTIONS
Keyswitches allow users to arm or disarm a partition by pushing a button or by activating a
switch with a key. Connect the keyswitch as shown in Figure 2.6 directly to the control
panel terminals. Once a keyswitch is connected, it must be assigned to a zone and its
parameters must be programmed (see
Zone Programming on page 13 and Keyswitch
Options on page 18).
2.12 FIRE CIRCUITS
When a zone is programmed as a Fire zone, the zone becomes normally open and requires
an EOL resistor. If a line short occurs or if the smoke detector becomes active, whether the
system is armed or disarmed, the control panel will generate an alarm. If a trouble occurs on a
Fire zone, the Fire Loop Trouble will appear in the keypads’ Trouble Display (see page 42) and
the control panel can transmit the Fire Loop Trouble report, if programmed, in section [206].
2.12.1 4-W
IRE
I
NSTALLATION
:
Any on-board zone can be defined as a Fire Zone (see page 15) when using the 4-
wire installation. Connect the smoke detectors as shown in Figure 2.7 directly to the
control panel terminals. Program the PGM with the “[
PG
]/[
FNC
1] Key was Pressed”
Activation Event (see page 35) so the smoke detectors can be reset by pressing the
[
PG
] or [
FNC
1] key. Pressing the [
PG
] or [
FNC
1] key will interrupt power to the smoke
detectors for 4 seconds (see PGM Delay on page 36).
It is recommended that all smoke detectors be connected using a daisy chain configuration.
Figure 2.6: Keyswitch
Figure 2.7: Fire Zones