INS627-8 30/44
1.18 Jumper Selection (where available)
Batt On/Off JP1 Optional “Battery First” Connection Method (wired units
only)
Hold-Off mode automatically cancels when both the tamper circuit is closed and
power is supplied from the control panel. This allows installation engineers to
power the unit from the internal battery and fit the outer cover, knowing that the
unit cannot self‑activate until after power has been supplied from the control
panel.
N If the tamper circuit is closed and the unit is powered by the battery only, the
right LED will flash quickly to signal that the unit cannot self‑activate until power
has been supplied from the control panel.
! Prolonged “battery first” connection without power from the control panel may
cause permanent damage to the internal battery. Texecom recommend that the
unit is initially powered on battery only for no longer than 24 hours.
JP2 SAB/SCB Mode (wired units only)
In SCB mode the unit draws the majority of its sounding current from the built-in
battery rather than from the control panel. Although volume is somewhat reduced,
lowering the current demand on the control panel will enable the connection of
additional sounder units.
To select SCB Mode, the unit should first be powered from the built-in battery by
either using the jumper included on some models or by connecting the red battery
wire from the “N/C” (No Connect) terminal to the “Battery +” terminal. The unit
will automatically enter Hold-Off mode to disable Self-Activate (S/A) on tamper, this
will prevent the unit from self‑activating until both the tamper circuit is closed and
power is supplied from the control panel. Move the SAB/SCB jumper to the SCB
position before the unit is connected to the control panel.
N If the tamper circuit is closed and the unit is powered by the battery only, the
right LED will flash quickly to signal that the unit cannot self‑activate until power
has been supplied from the control panel.
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