The part no of this guide is 39214-074/Issue 3
LED Indicators
Two LEDs are fitted to the PCB to indicate functions as follows:
! SOUNDERS ON
! FAULT
Illuminated red when sounder relay is energised
Illuminated yellow under any fault condition (except group address conflict)
Functional Test Data
OUTPUT BIT
FUNCTION
INPUT BIT
FUNCTION
2
GROUP MODE*
2
GROUP MODE
1
PULSED MODE
1
PULSED MODE CONFIRMED
CONTINUOUS MODE
0
0
1 = OFF
0 = ON
1 = ON
0 = OFF
1 = ON
0 = OFF
1 = GROUP
0 = INDIVIDUAL
1 = ON
0 = OFF
CONTINUOUS MODE CONFIRMED
1 = ON
0 = OFF
*Note: group mode is disabled if the group address DIL switch is set to ‘0000’, irrespective of the protocol
message
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 the
correct value resistors are fitted where necessary.
Fault Finding
Problem
No response or missing
Fault condition reported
Sounders do not operate
Sounders operate continuously
Analogue value unstable
FIRE DETECTORS LIMITED
Possible Cause
Incorrect individual address setting
Incorrect loop wiring
Incorrect group or individual address setting
Incorrect wiring of sounder zone or fault input
Faulty sounder
Local supply faulty or polarity incorrect
Fuse blown on sounder PCB
Incorrect wiring
Incorrect group address setting
Fuse blown on sounder PCB
Incorrect cause and effect programming
Faulty sounder
Panel fault
Incorrect sounder zone wiring
Dual address
Loop data fault, data corruption
For a full technical specification of the Sounder Control Unit, please refer to the XP95 Sounder Control Unit
PIN Sheet, PP2019.
XP95 Sounder Control Unit
Installation Guide
General
The XP95 Sounder Control Unit, part no 55000-823, is supplied with a backbox for surface mounting. It is
also available without a backbox for flush fitting — part no 55000-824. For flush fitting the installer will need
to provide a suitable metal box with fixing centres of 120.6mm (UK standard 2-gang accessory box).
Note: The XP95 Sounder Control Unit is not designed for outdoor use unless it is mounted in a
suitable weatherproof enclosure.
Surface Mounting
1. Mount the back box as required and install all cables for termination. Ensure that earth continuity is
maintained.
2. Remove the cover plate (if secured) from the Sounder Control 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 back box 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, fit 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.
Flush Mounting
1. Secure a suitable metal back box (30mm minimum depth) in position and install all cables for
termination. Ensure that earth continuity is maintained.
2. Follow steps 2 to 6 as above.
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-fire.co.uk Website: www.apollo-fire.co.uk
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1
addr
Wiring Details
All wiring terminals accept solid or stranded cables up to 2.5mm².
LOCAL POWER SUPPLY
L2 (+ve)*
SOUNDER –
L1 (–ve)*
SOUNDER +
Vex –
Vex +
{
{
NORMALLY CLOSED
FAULT CONTACT
FUSE
N/C
COM
N/O
FAULT
INPUT
FAULT INPUT NOT
USED (WIRE LINK
MUST BE FITTED)
NORMALLY OPEN
FAULT CONTACT
{
{
SOUNDERS WITH
POLARISING DIODES
XP95 LOOP
10KΩ
EOL
DIL switch
setting
1234567
Address Setting
The Sounder Control Unit is designed to be polled by the control panel in two ways, individually or as part of
a group. Two DIL switches are provided for setting the addresses.
DIL switch
setting
1234567
addr
DIL switch
setting
1234567
addr
DIL switch
setting
1234567
11
12
13
14
15
16
17
18
19
20
1101000
0011000
1011000
0111000
1111000
0000100
1000100
0100100
1100100
0010100
21
22
23
24
25
26
27
28
29
30
1010100
0110100
1110100
0001100
1001100
0101100
1101100
0011100
1011100
0111100
31
32
33
34
35
36
37
38
39
40
1111100
0000010
1000010
0100010
1100010
0010010
1010010
0110010
1110010
0001010
41
42
43
44
45
46
47
48
49
50
1001010
0101010
1101010
0011010
1011010
0111010
1111010
0000110
1000110
0100110
51
52
53
54
55
56
57
58
59
60
1100110
0010110
1010110
0110110
1110110
0001110
1001110
0101110
1101110
0011110
61
62
63
64
65
66
67
68
69
70
1011110
0111110
1111110
0000001
1000001
0100001
1100001
0010001
1010001
0110001
71
72
73
74
75
76
77
78
79
80
1110001
0001001
1001001
0101001
1101001
0011001
1011001
0111001
1111001
0000101
81
82
83
84
85
86
87
88
89
90
1000101
0100101
1100101
0010101
1010101
0110101
1110101
0001101
1001101
0101101
91
92
93
94
95
96
97
98
99
100
1101101
0011101
1011101
0111101
1111101
0000011
1000011
0100011
1100011
0010011
101
102
103
104
105
1010011
0110011
1110011
0001011
1001011
106
107
108
109
110
0101011
1101011
0011011
1011011
0111011
111
112
113
114
115
1111011
0000111
1000111
0100111
1100111
116
117
118
119
120
0010111
1010111
0110111
1110111
0001111
121
122
123
124
125
126
1001111
0101111
1101111
0011111
1011111
0111111
Group Address Setting
In Group mode the Sounder Control Unit responds to an additional address referred to as the “group
address”, which is used to activate groups of Sounder Control Units simultaneously. (The unit continues to
respond to its own individual address and report its status from that address in the normal way.) The group
address is selected by the four-segment DIL switch which is factory-set to 0000. A group address may be
any spare address within – and only within – the range 112 to 126 inclusive. The required group address is
set by moving one or more of the segments on the switch to “1”. The following table shows the settings for
the group address switch.
Fuse: 1.25A, anti-surge Local supply: 24V (9V min, 32V max) Sounder zone end-of-line resistor: 10KΩ, ¹/3Watt
2.6mA
1.9mA
1.7mA
3.6mA
addr
1000000
0100000
1100000
0010000
1010000
0110000
1110000
0001000
1001000
0101000
addr
switch-on surge, max 100 mS
quiescent
sounders operated
fault
DIL switch
setting
1234567
1
2
3
4
5
6
7
8
9
10
* L1 and L2 are polarity insensitive, but, for the sake of consistency, it is recommended that L1 be kept negative
Maximum current consumption at 24V
addr
112
113
114
115
116
117
118
119
120
DIL switch
setting
1248
1111
0111
1011
0011
1101
0101
1001
0001
1110
addr
121
122
123
124
125
126
DIL switch
setting
1248
0110
1010
0010
1100
0100
1000
Note: one switch is sealed with a sticky label. This label should not be removed unless the unit is to be
controlled as part of a group.
Commissioning
It is important that the Sounder Control Unit be fully tested after installation. An XP95 Test Set, part no
55000-870, may be used to carry out functional testing of individual units. It can also be used to perform
data integrity tests of an entire system.
Individual Address Setting
The individual address of the Sounder Control Unit is set using the seven-segment DIL switch. Each segment
of the switch must be set to “0” or “1”, using a small screwdriver or similar tool. A complete list of address
settings is shown opposite.
The cause and effect programming (the control panel software responsible for switching sounders and
outputs etc. in alarm condition) should be fully checked, along with all equipment connected to the Sounder
Control Unit.
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