User`s manual

NVF-800S 4-Band VDSL IP DSLAM USER’S MANUAL Ver_B.2
132
A.2 Telephone wire
Standard telephone wire of any gauge or type-flat, twisted or quad is used to connect the Modem to the telephone network. A
telephone cable typically consists of three pairs of wires, one of which is used for transmission. The connector at the end of
the telephone cable is called an RJ-11 connector and it consists of six pins. POTS (plain old telephone services) use pins 3
and 4 for voice transmission. A telephone cable is shown below. (Figure A-4)
A
B
Figure A-4 Telephone cable
The A and B connectors on the rear of the Modem are RJ-11 connectors. These connectors are wired identically. The RJ-11
connectors have six positions, two of which are wired. The Modem uses the center two pins. The pin out assignment for
these connectors is presented below. (Table A-2)
Table A-2 RJ-11 Pin out Assignments
Pin# MNEMONIC FUNCTION
1 NC Unused
2 NC Unused
3 TIP POTS
4 RING POTS
5 NC Unused
6 NC Unused_