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Cable Requirements
Panel bus
Table 2: Maximum wire run
Length in feet
Wire gauge when connected to
panel
250
24
500
20
1000
18
1500
16
2500
14
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
1
2
3
4
5
6
7
8
NX-181xx NetworX Voice keypad with touch buttons Installation Manual
Partition Number
1
2
3
192
193
194
200
201
202
208
209
210
216
217
218
224
225
226
232
233
234
240
241
242
248
249
250
Wire gauge when connected to
remote PSU
22
18
16
14
12
4
5
6
195
196
197
203
204
205
211
212
213
219
220
221
227
228
229
235
236
237
243
244
245
251
252
253
7
8
198
199
206
207
214
215
222
223
230
231
238
239
246
247
254
255
17
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