NEX7250 Zone 2 Annunciator
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7. Outputs
7.1 Common Outputs
All series 725 annunciators are equipped with five common output relays located on the upper card
of the SPR module. (Part no CB7081POP1).
As standard all five relays are factory set to be normally energised and will de-energise when
activated.
Each relay is equipped with volt free contacts for customer use, which can be selected to be either
normally open or normally closed in the non-alarm state per the following table.
To change any of the settings the relay card must be removed from the system as described
below
1. Remove Power From the annunciator
2. Remove the two green terminal blocks which provide customer terminations on the rear of
the pushbutton cell.
3. Remove the plastic protection cover on the rear of the pushbutton cell by releasing the tabs
on either side of the cover
4. Remove the twin card assembly from the rear of the unit. (A flat blade screwdriver can be
used to gently lever the assembly from the cell by placing the blade under the white stand
off pillars and the side of the cell).
HNB
SUPPLY 24VDC
OV OVC +V
HNA
ST
+VC
T
A
R
SPR
FR
M
GPB
GPA
MULT
REAR VIEW OF COVER / TERMINALS
REAR VIEW OF PUSHBUTTON CELL WITH
TERMINALS AND COVER REMOVED
