INSTALLATION AND OPERATION INSTRUCTIONS — FENCE PROTECTION SYSTEMS
42
Step 7
Allow enough transducer cable inside the pre-amp enclosure to permit future service.
Step 8: Close the entry gland by rotating clockwise the outer shell until the cable is held snugly. DO
NOT OVER TIGHTEN!
Interconnect Wiring
Each dual zone pre-amp requires a wiring connection to the FPS-3 Central Controller, which provides
power and signal connections for the two alarm zones. The wiring consists of a dedicated 2-pair,
individually shielded, 24-gauge low capacitance cable with drain wire and high density polyethylene
jacket,
Magal-Senstar
Part No. FPS-3 Interconnect. Use only the approved cable to connect each
dual zone pre-amp to the FPS-3 Central Controller. Other cables may not provide adequate perfor-
mance.
Connect the wiring at each dual zone pre-amp as shown in Figure 48. This connector is removable,
making it easier to connect the wiring. Insulate the shield wire so that it does not short or touch the
chassis.
Connect the wiring from each dual zone pre-amp to the FPS Central Controller as shown in Figure 49.
Insulate the shield wire so that it does not short or touch the chassis. Strain relieve the cable, leaving
the FPS-3 chassis so that wiring is not damaged when the Central Controller is moved.
Figure 48. Pre-amp Cable Connections
REMOVABLE
TERMINAL BLOCKS
DUAL ZONE PRE-AMP.
CIRCUIT BOARD
GLANDS turn CLOCKWISE to CLOSE
COUNTER-CLOCKWISE to OPEN
1 2
CENTER
SHIELD
1 2
1 2
CENTER
SHIELD
1 2
SHIELD
ZN 1-1
ZN 1-2
ZN 2-1
ZN 2-2
NOTE: FOR A DOUBLE RUN OF SENSOR CABLE, INSTALL FOUR GLANDS ON THE
ENCLOSURE, RETURN ALL FOUR SENSOR CABLE ENDS TO THE PRE-AMP. AND
CONNECT TO THE TERMINALS PROVIDED FOR EACH ZONE.
SEE WIRING
DETAIL
WIRING TO
CENTRAL CONTROLLER
SHIELD
ZN 1-1
ZN 1-2
ZN 2-1
ZN 2-2
RED
BLK
SHIELD
GRN
WHT
TO
CENTRAL
CONTROLLER
NOTE: WIRING COLORS SHOWN MATCH THE
Magal-Senstar
CABLE