Supplementary Devices 6
Shield Fire, Safety and Security Ltd.
Shield A-XT Releasing Fire Control Panel - Installation and Operation Manual SEXTCP-OM
Revision E01.00
58 of 127
Abort Connections
Abort connections of the Shield Status Unit are supervised for open-circuit, short-circuit and ground-fault conditions.
Abort connections on the circuit board of the Status Unit are labeled Hold. Hold and Abort functions are identical.
To provide supervised connections on the Abort terminals:
Connect the 6.8 K Ohm EOL resistors across the Hold terminals of the Status Unit when inputs are unused.
The figure below illustrates Hold connections for the Status Unit:
Figure 6-3
Hold Input Connections
1 Connect a 470 Ohm trigger-resistor, SEOLR-470 in series with one-leg of the normally open switch.
2 Connect a 6.8 K Ohm EOL resistor, SEOLR-6.8 in parallel with the normally-open-switch.
3 Connect wiring from one-side of the 6.8 K Ohm EOL resistor, SEOLR-6.8 to one-side of the Hold input.
4 Connect wiring from the opposite-side of the 6.8 K Ohm EOL resistor, SEOLR-6.8 to the opposite-side of the
Hold input.
470
6.8 K
Abort
Hold
Status Unit
Protected enclosure
The Mode input is unused on the Status Unit and
is designated as a No Connect (NC) terminal.
Abort switch is a momentary
normally-open (NO) push-button
EOL resistor,
SEOLR-6.8
Trigger resistor,
SEOLR-470
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