NX-181xx NetworX Voice keypad with touch buttons Installation Manual
17
Cable Requirements
Panel bus
Table 2: Maximum wire run
Length in feet
Wire gauge when connected to
panel
Wire gauge when connected to
remote PSU
250 24
22
500 20
18
1000 18
16
1500 16
14
2500 14
12
These numbers are for one keypad at the end of the wire. When connecting
more than one keypad to the end of the wire, a higher gauge wire or a reduction
in total wire distance will be required. Star or daisy chain wiring configuration
allowed.
Audio line
A maximum of 8 NX-181xx Voice keypads can be configured as room stations for
intercom functionality. Two pairs of twisted cable (4 conductors) are required for
the audio line, one pair for audio line A and another for audio line B. Maximum
total wire run is 100 meters using 2 x twisted pairs. Star or daisy chain wiring
configuration allowed.
Note:
Both the audio line and data bus can either be star or daisy chain wired.
Note:
Additional power required pending total current draw of system.
Keypad Partition
Number
1
2 3 4 5 6 7 8
1
192 193 194 195 196 197 198 199
2
200 201 202 203 204 205 206 207
3
208 209 210 211 212 213 214 215
4
216 217 218 219 220 221 222 223
5
224 225 226 227 228 229 230 231
6
232 233 234 235 236 237 238 239
7
240 241 242 243 244 245 246 247
8
248 249 250 251 252 253 254 255
