Multitech MultiVOIP MVPFXS-16, User Manual

Page: 155 / 165

MultiVOIP FXS User Guide Cable Pinouts
155
RJ-21 Connector
The footprint of the RJ-21 connector is shown in the figure below and its pin-out list is presented in the
table that follows.
RJ-21 Connector Footprint
RJ-21
Connector
Pin-Out List
TIP:
on Pins 1 – 24 RING:
on Pins 26 - 49
Wire Pairs for
Each Channel
Channel 1 1 26 √ √ √
Channel 2 2 27
√ √ √
Channel 3 3 28 √ √ √
Channel 4 4 29
√ √ √
Channel 5 5 30 √ √ √
Channel 6 6 31
√ √ √
Channel 7 7 32 √ √ √
Channel 8 8 33
√ √ √
Channel 9 9 34 √ √
Channel 10 10 35
√ √
Channel 11 11 36 √ √
Channel 12 12 37
√ √
Channel 13 13 38 √ √
Channel 14 14 39 √ √
Channel 15 15 40 √ √
Channel 16 16 41 √ √
Channel 17 17 42 √
Channel 18 18 43 √
Channel 19 19 44 √
Channel 20 20 45 √
Channel 21 21 46
√
Channel 22 22 47 √
Channel 23 23 48
√
Channel 24 24 49 √
Pin 25 is not
connected.
Pin 50 is not
connected.