These two modes of operation are detailed in the following sections. Any errors encountered while
scanning the SD card produce error code flashes on the Red LED. See the Diagnostic LED Codes section
below for more information about LED error codes.
CFSound Mode
In CFSound Mode, the operation of the CFSound-IV is controlled by the names of the sound files on the
SD card. Sounds are associated with contacts by the leading numeric portion of the filename, and the
controlling state of the contact is specified by additional trailing non-numeric character attributes. Sounds
may be played when a contact closes, opens, or only while a contact is closed or open. Sounds may be flagged
as non-interruptible, or to only play when no other contact controlled sounds are playing. In addition, a small
configuration text file may be placed onto the SD card along with the sound files to further control how the
unit plays sounds (see the CFSOUND.INI section below).
Filename Formats
The filenames of the individual Sound files on the Secure Digital FLASH Card control how and when the
sounds are played out by the
Compact FLASH IV Digital Audio System
. The filename must follow the
DOS 8.3 naming convention – up to 8 characters of name with up to 3 characters of extension.
The filenames must start with an number which may be the contact input they are
associated with expressed as a two digit HEX number.
A HEX numeric digit is 0 through 9 and A through F, with 0 being equal to decimal 0, A being equal to
10 and F being equal to 15. The first digit (MSB) of the two digit hex number is multiplied by 16. The
second digit (LSB) is added to the adjusted value derived from the first digit. The number 10 in HEX is thus
equal to 16 decimal. The number 20 in HEX is 32 decimal, 21 in HEX is 33 decimal, and 7F in HEX is 127
decimal. For your convenience, a decimal to hex conversion table is provided below:
LSB
MSB
_0
_1
_2
_3
_4
_5
_6
_7
_8
_9
_A
_B
_C
_D
_E
_F
0_
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1_
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
2_
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
3_
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
4_
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
5_
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
6_
96
97
98
99 100 101 102 103 104 105 106 107 108 109 110 111
7_
112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127
8_
128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143
9_
144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159
A_
160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175
B_
176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191
C_
192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207
D_
208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223
E_
224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239
F_
240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255
