Multitech MULTIFRAD 3100 - Manual (Page 11)

11
Chapter 1 - Introduction and Description
Channels 3 - 10 Connectors
These DB-25 female connectors are used to connect the MultiFRAD to channel devices. These
connections can be to either asynchronous or HDLC synchronous RS232 data equipment such as
multiplexers.
Voice/Fax Channels 1 - 8 Connectors
Note: the Voice/Fax connectors are not currently supported.
E&M
Use the E&M connector to connect the MultiFRAD Voice/Fax channel to the E&M connector on an
analog PBX (Private Branch eXchange) trunk when linking two PBX’s together. The E&M connector
is an RJ-48 jack.
FXO
Use the FXO (Foreign eXchange Office) connector to connect the MultiFRAD Voice/Fax channel to
an analog station card on the local PBX. This connection is also commonly referred to as an OPX
(Off Premises eXtension). The FXO connector is an RJ-11 jack.
FXS
Use the FXS (Foreign eXchange Station) connector to connect the MultiFRAD Voice/Fax channel to
an analog station instrument (telephone, fax machine, or key telephone system). The FXS connector
is an RJ-11 jack.