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b) The bare wire ends are neatly dressed and fully inserted into the terminal
housing. Less than 2mm of exposed wire should be visible after termination.
c) The complete bundle of wire strands is inserted into the screw terminal. No
broken strands should be visible.
d) There are no free strands outside of the metal block in the terminal housing.
e) The retaining screw is correctly torqued.
Batteries
The Network Access Controller requires battery backup to maintain functionality
when primary power is lost. Two independent battery channels are provided for
this purpose.
Key battery requirements are listed in the Electrical section of Specifications on
page 5. The table does not specify battery dimensions, capacity and temperature
ratings as they are installation dependent. The installer is responsible for
ensuring that:
a) The specified battery or batteries, in conjunction with the configured
system load and TS1066 charger settings, provide the required system
backup and recharge times.
b) The battery operating temperature range is compatible with the specific
TS1066 installation environment; a minimum range of 0°C to +40°C is
recommended.
c) The batteries fit into the system enclosure and are oriented so that there is
no possibility of their uncovered terminals being bridged by metal when
the leads are not attached.
d) The system enclosure is properly sited and mounted to handle the
configured system weight and allow for safe installation and removal of the
batteries in compliance with the warnings in this manual and all local
codes and OHS requirements.
e) For scheduling on-going battery system checks as required by the
applicable standards and codes to ensure user safety, battery integrity
and system performance; a 3 monthly interval is suggested.
A fuse is required in the positive lead of each battery, as fitted in the
supplied battery leads; a spare is not provided. The fuse is specified in the
Electrical section of Specifications on page 7.
The battery leads are provided with receptacles to suit the 4.75mm Fast-
On tabs commonly used on 12V SLA batteries with 7Ahr and 12Ahr
capacities. Higher capacity batteries will have different terminal types,
necessitating the use of adaptors or modifications to the leads. When
modifying the leads:
a) Disconnect leads from the NAC.
b) Take care not to damage the fuse holder.
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