Exb communication channel interfaces, Exb-telco communication channel interface – CTI Products EXB-232 Asynchronous Serial System Extender User Manual
Page 7
68-11089-115
3
1.2 EXB Communication Channel Interfaces
This section describes the communication channel interface of the EXB-TELCO module and the
EXB-Serial module. This interface provides the network connection between the remote MCN
networks.
1.2.1 EXB-TELCO Communication Channel Interface
The internal modem in the EXB-TELCO module uses proven V.32 terbo modulation,
transferring data at 19,200 bits per second. This modem is unique, however, in its ability to
transfer voice simultaneous to data using only a single voice-grade circuit between two EXB-
TELCO modules. This bidirectional voice channel exists between each EXB-TELCO module
pair and is accessible via the AUDIO connector on the EXB-TELCO module. This live voice
feature can be used in any application that requires live data as well as voice communication
between personnel or equipment at separate sites.