Minimum Battery Voltage - Tait TB8100 User Manual

Minimum battery voltage

Auxiliary power type
CTCSS characteristics
80 Part E: Configuring the Base Station
The Power configuration area (Configure > Base Station > Miscellaneous)
defines the lowest possible voltage for the DC power input to the PMU. Three
pairs of voltages are displayed, corresponding to the PMU's different DC-DC
converter options (a nominal 12 V, 24 V, or 48 V input). The voltages that
apply have a white background and can be edited. If there is no AC power and
the battery voltage falls below the value in the relevant Power shutdown
voltage box, the BSS shuts down. If the voltage rises above the value in the
Power startup voltage box and the PMU is fitted with a standby module, the
BSS re-starts.
Important: The values you define in this area affect any other base
stations in the BSS.
If the PMU is fitted with an auxiliary power supply unit, you need to configure
it to suit the way it will be used. Generally, its output can be used to charge
batteries or to power other site equipment. This equipment can include
TaitNet trunked modules. These can be powered via the reciter's system
interface board (additional connection required).
Caution: While the auxiliary power output can be used for more than one
purpose at once, this is not generally recommended. It can result in a short-
circuit and equipment damage. The output is floating. If it is connected to a
negatively earthed battery and to positively earthed auxiliary equipment, a short-circuit
will result.
In the Power configuration area (Configure > Base Station > Miscellaneous),
the Aux power type box specifies what kind of auxiliary output the PMU
provides. Select one of the following options.
Option Description
Enabled Output is provided when the PMU uses mains power and
when it uses battery power. Suitable for powering auxiliary
equipment.
Disabled No auxiliary power output is provided.
Mains Output is provided only when the PMU uses mains power.
Suitable for re-charging the batteries used for the PMU's DC
power input.
The CTCSS characteristics area (Configure > Base Station > Miscellaneous)
lets you globally configure CTCSS subaudible signalling to emulate the T800
or to follow the TIA/EIA603 standard.
Option Detection time
T800 < 150 ms
EIA603 120 – 250 ms
(for 250 – 67 Hz)
Detect Reject
bandwidth bandwidth
2 Hz 3 Hz
1.8% 3%
MB8100-00-00-806 © TEL 2003