User`s guide

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 Telephone cable
A
B
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 wiring, The Modem uses the center two pins. The pin out assignment for these connectors is
presented below.
Table 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
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