1
Discovery
®
Sounder Base
Installation Guide
General
This guide describes the installation of the following base
Part number
Product Description
45681-702
Discovery Sounder Base (White) with isolator
45681-292
White Cap only (Lockable)
45681-293
Red Cap only (Lockable)
Connect the device only to control panels using the Discovery protocol.
Warning
The Discovery Sounder Base requires compatible
fi
re alarm panel software to operate.
Please check with the panel manufacturer before installation.
Function
The Discovery Sounder Base combines a sounder, a detector base and a short circuit isola-
tor in one unit. It has up to 15 tone pairs, 7 volume settings, independent control of sounder
and fast turn-on functions. The con
fi
guration of the sounder is set by the control panel.
Please refer to the panel literature for details.
When the integral short circuit isolator operates, a yellow LED is visible through the
moulding opposite the XPERT card (see
fi
g 1.)
Note: The Discovery Sounder Base is not suitable for outdoor use.
Mounting Instructions
The Discovery Sounder Base may be secured to a UK standard conduit box or surface
mounted (providing there is access through the surface for cabling). If a detector is
fi
tted,
lock it if required by screwing in the grub screw in the detector with a 1.5mm hex driver
(part no 29600-095).
Wiring Details
Note: This product is polarity sensitive (supply reversal protected) and will not function if
wired incorrectly.
Terminate all loop cables in the two way terminal blocks. Connect the incoming loop
cables to L1 IN (–) and L2 (+) and the outgoing cables to L1 OUT (–) and L2 (+). Functional
earth or screen may be connected to the EARTH connection.
When using as a stand-alone unit, a cap is available (red cap part no 45681-293 or white
cap part no 45681-292) and is secured with a 1.5mm AF hexagon socket head screw. A
hexagonal driver (part no 29600-095) is available from Apollo.
