93-509-09 - Issue 2 Rev 2 Page 6 of 20 Copyright Protec Fire Detection PLC
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All external wiring associated with the system must conform to the current I.E.E Regulations and cabling must
conform to the relevant BS specifications. ECA recommended Cable Separation for Electromagnetic
Compatibility in Buildings, must be followed.
All cabling must be fully phased (Identify and mark ends of cables).
Although no connections are to be made to the 6300 panel until the commissioning stage it is important that
cables are left long enough to connect directly to the relevant terminals. To ensure that cable tails are left with
sufficient length all cable tails must be a minimum of 500mm. Locate the termination positions using Product
Information Drawings: -
PID 201 - 6300 TERMINAL BOARD CONNECTIONS
PID 202 - 6300 REPEAT TERMINAL BOARD CONNECTIONS
2.1 POWER SUPPLY CABLING (REMOTE CHARGER ONLY)
If the 6300 panel has an external charger then it will require two separate +24V supplies. This is a requirement of
En54-4 clause 6.4. These two supplies must not be wired in the same fire rated cable. In addition there is a fault
signal ‘SF’ from the charger to the panel and a charger inhibit signal ‘CI’ from the panel to the charger. These
two signals can be combined with one of the +24V supplies into a 4-core fire rated cable.
The maximum length of cable between the charger and the 6300 panel will depend upon the volt drop along the
cable. No more than 3A must be supplied to a panel and no more than two panels must be fed from the same
charger.
2.2 NETWORK / SERIAL CABLING (RS485)
A 6300 panel requires the RS485 network to be wired as a loop. This is because the RS485 network is wired as a
loop in order to continue to indicate a fire alarm from any device on the system should a single break or short
circuit occur in one of the RS485 circuits.
The maximum length of cable between any two 6300 panels on the RS485 network is 1km using a minimum
standard of 1.5mm
2
fire rated cable. The maximum length of the whole RS485 network loop is 5km.
The maximum length of cable from the 6300 panel to all of the RS485 serial repeat panels is 1km using a
minimum standard of 1.5mm
2
fire rated cable.
In countries where local standards permit, the network can be wired in ‘Twin Figure 8’ cable but the cable length
will have to be reduced in accordance with the lower conductor size.
EACH OF THE RS485 CIRCUITS MUST BE WIRED IN A SEPARATE PAIR. WHEN THE CABLE HAS A
SCREEN THEN THE SCREEN MUST BE EARTHED AND CONTINUOUS OVER THE CABLE RUN.
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