Print Date 08/04/14 Page 15 of 34 S79005-00MA-05
2.2.2 Mains Supply Connector (-05, -06, -07, -08 dual mains supply variants)
This is a 6 Way plug at the rear of the Supply Disconnector section, CON02. Both supplies must be
single phase, 90V to 260V AC, 47 - 63Hz.
The maximum current drawn from each of the two supplies is in the order of 2A at 230V AC increasing
to about 4A at 115V AC. If one of the supplies is absent, the maximum current drawn from the
remaining supply is in the order of 4A at 230V AC increasing to about 8A at 115V AC.
! CAUTION !
The mains supply leads (two total) to the Transmitter must each consist of three core (P+N+protective
earth) insulated cable. Each core must be at least 2.5mm
2
and the overall cable armoured (type SY
flexible steel armoured cable preferred) and not mounted in a conduit with other supply cables.
Two double pole, 10A (C rated) MCBs must be provided at the supply distribution board(s) to
protect both leads and Transmitter supply input circuitry. Also, since the supply input circuitry
contains filters, which pass current to the Transmitter chassis, the Transmitter chassis must be
connected to a safety ground.
Also ensure whilst making any connections to the mains supply, that the Transmitter’s front
panel Supply Disconnector is switched to ‘OFF’ to prevent inadvertent operation of the
Transmitter.
Each lead terminates in the 6 Way 16A/440V free socket at the Transmitter end, which is wired as
follows :-
Pin 1 Line #1
Pin 2 Neutral #1
Pin 3 Prot. Earth #1
Pin 4 Line #2
Pin 5 Neutral #2
Pin 6 Prot. Earth #2
Earthing Pin Prot. Earth
The two leads from a connector must both go the supply or supplies via separate MCBs.
The armouring of the cable should also be taken to ground at the supply distribution board.
The free connector should be fitted with a top entry hood.
An earthing bolt is provided adjacent to the mains supply input connector to allow the Transmitter
chassis to be permanently bonded to nearby safety ground directly or via rack metalwork.
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