
496792 1
1. Introduction
1. INTRODUCTION
The 9751 and 9752 control units are designed to be fully programmable to
suit individual site requirements and user needs.
The system comprises a control unit in a shielded case, up to four separate
keypads and one keyswitch interface (see Figure 1 on the next page). You
should always fit at least one keypad.
The control unit provides:
° A four-wire bus connection for keypads, keyswitches and hardwired or
wireless zone expanders.
° Connections for eight Fully Supervised Loop (FSL) zones or eight
closed circuit zones with a common tamper.
° Connections for three fully programmable outputs.
° Internal sounder loudspeaker output with electronically generated
Chime, Alarm, Fire and Entry/Exit tones. (The volume of the Entry/Exit
and Chime tones can be adjusted).
° Built in communicator for reporting to an Alarm Receiving Centre
(ARC).
° Pins for fitting a plug-by communication device.
° Remote up/downloading. (A local socket is available on the 9752.)
The control unit provides connectors for eight Closed Circuit (CC) zones or
eight Fully Supervised Loop (FSL) zones on its own printed circuit board.
Separate 9954 expander units allow connection of a further 16 wired zones to
a 9751 or 24 wired zones to a 9752. Alternatively, a 9955 expander allows
connection of 16 wirefree zones to a 9751 or 24 to a 9752. Both control units
can use a combination of wired and wireless expanders.
The control units support the 9930 sixteen character Liquid Crystal Display
(LCD) keypad. In addition the control units also supports the 9928 keyswitch
interface.
As an Installer you can program the system either from the keypads, or
using PC based Windows <Downloader>. When programming from the
keypads the programming interface is arranged as a set of three-digit num-
bered commands similar to those used by the 9800 family of products.
The system can provide for up to 16 separate users. User facilities include:
° Three different security levels (full set and two part sets) on the 9751
or four levels on the 9752. The levels can be programmed by the
Installer.
° User programmable Duress code.
° Keyswitch setting/unsetting.
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