Specifications

32 Port Interface Card
C613-03023-00 REV P
BT Adaptor Cable for the AT-AR027 PIC
The AT-AR027 VoIP-FXS PIC uses a standard RJ-11 connector. To connect
telephones with a BT-style connector, use an RJ-11 to BT adaptor cable
(Figure 20).
Figure 20: Pin wiring diagram for an RJ-11 to BT adaptor cable
Terminal and Modem Cables
The following terminal and modem cables are described in this section:
■ RJ-45 terminal cable
■ Modem cable
■ Macintosh serial cable
An alternative method, for both terminal and modem cables, is to wire an RJ-45
patch cord (a straight pin-to-pin cable with RJ-45 connectors on both ends) and
then use an RJ-45-to-DB25 adaptor wired internally as a crossed cable. These
adaptors are available in both DB25 female and male versions from data
cabling suppliers, and are supplied with wires terminated on the RJ-45 socket
and pins on the free ends. The pins are inserted into the appropriate positions
in the DB25 shell.
3
4
5
5
2
3
Notes:
(1) The SHUNT line (RJ11 pin 5/BT jack pin 3) is only required by some phones. If not
connected they will not ring.
RJ11BT
RJ11 Plug BT Socket
Cable
Pin 1Pin 6
BT Socket — Pin view
Pin 6Pin 1
RJ11 — Router end view