© Apollo Fire Detectors Limited 2011
Apollo Fire Detectors Limited, 36 Brookside Road, Havant, Hants, PO9 1JR, UK
Tel +44 (0)23 9249 2412 Fax +44 (0)23 9249 2754
Email: techsales@apollo-
fi
re.co.uk Website: www.apollo-
fi
re.co.uk
4
1
Output Unit
Installation Guide
General
The Output Unit, part no 55000-849, provides a volt-free, double pole, change-over relay
output. It is supplied with a backbox for surface mounting and has an integral isolator as
standard.
Note: The Output Unit is not designed for outdoor use unless it is mounted in a suitable
weatheproof enclosure.
Installation
1.
Mount the backbox as required and install all cables for termination. Ensure that earth
continuity is maintained.
2.
Remove the cover plate (if secured) from the Output Unit assembly by inserting the blade
of a terminal screwdriver into each of the four securing clips in turn, gently prising the
outer edge of the cover plate over the clips underneath. DO NOT USE EXCESSIVE FORCE.
3.
Terminate all cables.
4.
Gently push the completed assembly towards the backbox until the mounting holes are
aligned and secure with the two mounting screws provided. DO NOT OVERTIGHTEN.
5.
Set the address of the unit as shown on page 3.
6.
Finally, when commissioning is complete,
fi
t the cover plate by placing it in position,
observing the correct orientation (LEDs on the PCB must be aligned with viewing holes)
Apply pressure to the cover plate until all four clips are holding it in position.
Functional Test Data
Output bit Function
Input bit Function
2 not used
2 not used
1 not used
1
not used
0
operates relay
0 not used
1 = on
0 = off
For further information on protocol bit usage refer to the Output Unit PIN sheet, PP2093.
Troubleshooting
Before investigating individual units for faults, it is very important to check that the system wiring
is fault free. Earth faults on a data loop or any ancillary zone wiring may cause communication
errors. Many fault conditions are the result of simple wiring errors. Check all connections to the
unit and make sure that the correct value resistors are
fi
tted where necessary.
Fault fi nding
Problem
Possible
Cause
No response or missing Incorrect address setting
Incorrect loop wiring
Relay fails to operate Incorrect wiring
Control panel has incorrect cause and effect
programming
Relay energised continuously Incorrect loop wiring
Incorrect address setting
39214-134/2011/Issue 5
