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Installation
The following procedure must be adhered to when installing the Digilink system. Ensure you have
taken into consideration all of the above information before selecting the location for your transmitter.
If in doubt please feel free to telephone the technical helpline on 01803 860710.
1
Remove the cover from the Digilink transmitter unit by slackening the four Pozi head screws
located at the top and bottom of the unit (see Diagram 1).
2
Carefully lift off the cover and set aside.
3
The transmitter should be fixed to an even wall surface using suitable screws fitted through
the three holes provided in the chassis plate. Hold the chassis up to the chosen location and
with the aid of a pencil mark the position of the mounting holes.
Warning: Do not use the chassis plate as a template for drilling the holes into the wall. Hammer
drills vibrating through the chassis may irreparably damage the quartz crystals on the printed circuit
boards.
4
Place the Digilink transmitter over the mounting holes and secure the unit with suitable
screws. Check that the chassis plate does not bend and that the screws do not snag or pinch
any of the internal cables.
5
Connect the antenna to the unit via the BNC connector located at the top of the housing. If
the antenna is an external antenna, or an antenna which is separate from the transmitter unit
itself, ensure that the previous criteria covered under the section headed Siting of the
Hardware, have been strictly adhered to (also see section headed Other Antennas).
6
Connect the input cables to the zone terminals. Unless the unit has been specifically
configured for voltage input, these should be simple "dry" (no voltage) contacts only (i.e.
isolated switch or relay contacts).
If configured for voltage input (5-18V dc), the jumper link beside the relevant terminal must
be positioned nearest the "V" symbol marked on the circuit board (see Diagram 2).
If in doubt, check with Scope before proceeding; incorrect connection may cause
permanent damage.
7
If the unit is supplied with a sealed lead acid battery, insert the supplied fuse (2A AS type)
into the holder and screw together the two halves. Plug the lead into the BATT connector
(CN17) on the PT10 board, as shown on Diagram 2.The battery will now be in circuit and the
unit will power up. NOTE: only use fuse rating & type supplied.
8
A relay output is provided to indicate loss of external (mains) power. If required, connection
can be made to J14 terminal block (see Diagram 2), using either N/O or N/C terminal and the
Common terminal. The relay is energised when external supply is present and drops out
when power is lost. Relay max contact rating is 1A @ 60V dc and must not be exceeded.
9
Replace the cover and re-tighten the four retaining screws.
10
Finally, after checking all connections, connect the mains cable supplied to a suitable
isolated, fused spur or switched wall outlet. With mains power correctly applied, the red LED
on the base of the unit will light and a "Digilink Reset" message will be sent to the receiver(s)
to indicate successful initialisation.
11
The system is now active and will transmit the pre-programmed data/message for each of
the zones when triggered. Repeat transmissions and other programmed parameters (e.g.
battery low message) will be identified on the Configuration Data sheet(s) supplied with the
system.
DLINKMK3ACUSA
Digilink MK3, USA Mains Version
6
Issue 1
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