Auxiliary Input Jack [Optional]
Run 6 core cable (or same wire as
used for intercom wiring) from Input
Jack to the nearest room station.
FM Aerial
Run the 300 ohm FM Ribbon
antenna supplied with the master
from the master to the highest point
in the roof. If using coaxial cable to
connect to an alternative 75 ohm
antenna, be sure to fit a balun to
the 300 ohm terminals at the
master.
For the purpose of Select Calling
(Calling individual or grouped
stations), each station must be
allocated either a Single Digit or
Double Digit number.
If more than one station is allocated
the same number, the stations
having the same number will form a
group.
Allocating a number to a station, is
done by means of programming via
the keypad.
SINGLE DIGIT CODING
Single Digit Format is the default
programming setting intended for
systems requiring up to 8 select call
channels.
This format offers the convenience
of calling individual stations by
pressing only one button.
Enter program mode
by pressing
the “PRIVACY” and “MONITOR”
buttons simultaneously.
If not previously programmed the
station will already be in the default
setting of Single Digit Format where
the red LED will repeatedly flash
the programmed number.
(the default number being 1)
Enter a number between 1 and 8 by
pressing the corresponding button.
The Red LED will repeatedly flash
the programmed number.
Exit program mode
by pressing
the “CANCEL/CLEAR” button.
DOUBLE DIGIT CODING
Double Digit Format is a
programming option intended for
systems requiring from 9 to 24
select call channels.
This format requires that two
buttons be pressed in sequence for
calling individual stations.
Enter program mode
by pressing
the “PRIVACY” and “MONITOR”
buttons simultaneously
If not previously programmed the
station will be in the default setting
of Single Digit Format where the red
LED will repeatedly flash the
programmed number.
(the default number being 1)
Press the “AUX” button to toggle to
Double Digit Mode.
In Double Digit mode the red LED
will repeatedly flash the following
information.
- Two quick flashes representing
Double Digit Mode
- One to three flashes representing
the first digit (default = 1)
- One to eight flashes representing
the second digit (default = 1)
Enter a double digit number in the
ranges of 11 to 18, 21 to 28, 31 to 38.
(24 possibilities in total)
The red LED will repeatedly flash
the following information.
- Two quick flashes representing
Double Digit Mode
- One to three flashes representing
the first digit of the new number
- One to eight flashes representing
the second digit of the new number
PROGRAMMING
Auxiliary/Lock Outputs
[Optional]
An additional single core cable is
required between all room stations
(and master if fitted).
OPTIONAL AUXILIARY INPUTS
Heavy duty ‘Figure 8’ cable (24 x
0.20mm or better) is to be run from
each relay output (via power source
if applicable) to each auxiliary
device.
Note:
Clearly tagging all cables at
the master or central wiring point is
recommended, as this can be
extremely helpful in the event of
having
to isolate a problem such as
a damaged cable.
As stated in the previous section the system may be Star Wired from a central
point or Loop Wired however the number of stations on a loop is
governed by the length of the loop, and also whether or not a standby battery is
being used in conjunction with the supply.
The table below shows the relationship between the length of a cable run and
the number of stations permitted on the run. The length of a cable run is
determined from the station to which the Power supply is connected.
MAXIMUM LENGTH FOR CABLE RUNS
WITHOUT STANDBY BATTERY
400 feet
one station on loop
200 feet
two stations on loop
130 feet
three stations on loop
100 feet
four stations on loop
Note:
These maximum distances can be doubled where required by
running a ’‘fig 8’ cable (14 x 0.2 mm) in parallel with the red & black wires.
WITH STANDBY BATTERY
200 feet
one station on loop
100 feet
two stations on loop
70 feet
three stations on loop
